John deere 8440 problems

30 Series Row-Crop Tractors - 4030, 4230, 4430, 4630* 30, 40 and 50 Series Four-Wheel Drive Tractors - 8430, 8630, 8440, 8640, 8450, 8650, 8850* 40 Series Row-Crop Tractors - 4040, 4240, 4440, 4640, 4840*. * Indicates document is directly related to part number. OIL FILTER: Find parts & diagrams for your John Deere equipment.

Sep 2, 2013 · 8440 hydraulic problem. Jump to Latest Follow. 3K views 1 reply 2 participants last post by 5020man Dec 6, 2014. G. gwills Discussion starter. 4 posts · Joined 2013. #1 · Sep 2, 2013. I have hydraulic oil being pump out of transmission and into front diff and coming out of breather. Any ideas on what caused this and how to fix? The John Deere X300 tractor is one of the most popular and reliable tractors on the market today. It has been a staple of farms and gardens for years, and its versatility makes it ...Report to Moderator. My JD 40 has hydraulic leaks and problems with the hydraulic unit. It has dual levers and only one will lift only one of the lift arms. I suspect the pump is working since one lever will respond. I am contemplating trying to remove the unit and overhaul it. Are parts available from JD and is this a project that can be tackled.Big Tractor Power is out in the field with a 175 hp JOHN DEERE 8440 SoundGard tractor working with a McFarlane ReeL Disk on spring tillage preparing the s...Report to Moderator. Re: 4440 Charging problems in reply to buckaroo, 12-24-2003 11:13:58. in systems with a charge control light, the voltage from the light excites the alternator to start charging. in the 4440 there is a voltmeter for monitoring charge, so instead of a light there is a resistance wire connected to the alternator #'1' terminal ...Engine Block Heater - Engine coolant heater 12 cord. 1000 watt, 120 volt. Fits 2 diameter smooth bore core hole. For 400 and 500 series engines including: 4000, 4020, 4040, 4230,

Posted 6/4/2023 07:25 (#10256219 - in reply to #10256204) Subject: RE: John Deere 8640 Problems. ecmn. Sounds like 2 speed or clutch issue. When pushing the clutch pedal down you are stopping oil to the clutch, would make sense that is when the 3 pt works, 2 speed isn't that bad, turn all the way to the right, remove top shaft and you can see ...Few months ago we've bot JD 8440 here in Lithuania. It is good conditiona, recently had engine swapped by previous owner. Issue: We've dismounted starter motor and noticed that 'clutch compartment' and starter itself is full of hydraulic oil. So, we have dismounted whole engine, to find what is wrong. The issue we have - we can't …Subject: RE: Jd 8400 blower fan ??? Bardstown,KY. Are you sure that the air blowing isn't from the cab pressure fan in the floor. The fan for the AC is under the rear panel on back of tractor on right side behind the seat. With the tractor off you should be able to turn the key on and hear the fan in the floor, then turn on the fan and see if ... John Deere 8440 Transmission. Four gears (1-4) in four ranges (A-D). Tractor must be stopped to select range. Power shift between gears 1-2 and 3-4 within range. With 18.4-38 tires. ©2000-2021 - TractorData.com®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings ... Deere 8440 Transmission. Transmission: John Deere Quad-Range. Gears: 16 forward and 6 reverse. Speeds: Deere 8440 Dimensions. Wheelbase: 125 inches [317 cm] Weight: 26,590 lbs [12061 kg] Deere 8440 Mechanical. Chassis: 4×4 articulated 4WD. Steering: hydrostatic power. Brakes: hydraulic wet disc. Cab: Cab standard. Deere 8440 …

About John Deere Tractor. The John Deere 8440 tractor is part of the 9R tractor series. The 8440 is a Four-wheel Drive 4WD Tractors type, which is used mostly in the Agriculture Tractors. The 8440 tractor features a engine. This configuration improves usability in the real world.Production Manufacturer: John Deere Type: Four-wheel Drive (4WD) tractor Factory: Waterloo, Iowa, USA Original price: $64,000 (1982 ) John Deere 8440 Power Engine: 215 hp 160.3 kW PTO (claimed): 175 hp 130.5 kW Drawbar (tested): 160.58 hp 119.7 kW PTO (tested): 179.83 hp 134.1 kW MechanicalJohn Deere 8440 Tractor - Comes with 24.5-32 tires on the inside duals, and new 18.4-38 on the outside duals. Quick hitch, 1000 RPM PTO, block heater, and 3 rear aux. hyd. Meter shows 9454. Several... See More Details. Get Shipping Quotes Opens in a new tab. Apply for Financing Opens in a new tab.Subject: RE: John Deere 4440 with hydraulic issues, known issues,, Kittitas Co. Wa. State. Could be few issues. Seals out of cylinder, bent hinge binding, bent cylinder. Check your 3 point draft control linkage,, its screwed up or you don't have the draft set correctly. Low pressure light, could be: worn lift pump, worn hydraulic pump, worn ...I think the early 619 engines had a block cracking problem, especially in this 4x4 tractor where the engine block is used as the frame. I heard that the cracking was between cylinders. Back in the early 80's John Deere changed them out to the 50 series for I think, $5000 and when they did every thing was new, turbo, starter, injection pump ect.

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The john deere 2640 is a reliable tractor, but electrical problems can hinder its performance. Here are some common electrical issues: Dead battery: The battery can die over time, preventing the tractor from starting. Faulty alternator: If the alternator is faulty, it may not charge the battery, leading to starting problems. 88 posts · Joined 2006. #2 · Aug 1, 2007. You should get along fine with that tractor. We had an 8430 (blew motor and top shaft in trans), 8630 (blew a 2 speed every year), 8640 (no significant probs), & 8450 (no significant probs) over the years. 30 series reliability was very poor for us, but I think they got the bugs out in the 40 series.The engines in these tractors often had head gasket problems because the engine is part of the frame of the tractor. It causes the engine to twist over time and is much worse if the tractor has a dozer blade on it. ... I have the John Deere technical manual for a 8630 that used the same engine. Head bolts were tightened to 140 to 160 ft-lbs ...Deere 8440 Transmission. Transmission: John Deere Quad-Range. Gears: 16 forward and 6 reverse. Speeds: Deere 8440 Dimensions. Wheelbase: 125 inches [317 cm] Weight: 26,590 lbs [12061 kg] Deere 8440 Mechanical. Chassis: 4×4 articulated 4WD. Steering: hydrostatic power. Brakes: hydraulic wet disc. Cab: Cab standard. Deere 8440 …Explore all makes and models from John Deere Dealers nationwide. 1980 John Deere 8440 Articulated 4WD Tractor ©MachineFinder, John Deere and the associated trademarks are property and available only for the specific use of Deere & Company.Posted 6/4/2023 07:25 (#10256219 - in reply to #10256204) Subject: RE: John Deere 8640 Problems. ecmn. Sounds like 2 speed or clutch issue. When pushing the clutch pedal down you are stopping oil to the clutch, would make sense that is when the 3 pt works, 2 speed isn't that bad, turn all the way to the right, remove top shaft and you can see ...

Change oil and filters every 1200 hours. (Click here for capacity) CAB. RECIRCULATION AIR FILTER RE12793 (STANDARD) RE67830 (HEAVY-DUTY) Replace after every 200 hours. ENGINE. FUEL FILTER AR50041 (8430) - Qty. 2 AR86745 (8630, 8440, 8640, 8450, 8650, 8850) - Qty. 2. Replace fuel filters after every 600 hours.This John Deere 8440 is powerd by a diesel engine it has 466 ci or 7.6 L 6 cylinders ,it can produce 215 hp or 160.3 kW at 2100 (rpm), the fuel tank capacity is 156 gal or 590.5 L. This machine has 4x4 articulated 4WD wheel drive system,16 forward and 6 reverse John Deere Quad-Range transmission system. - John Deere provided us with the latest ...4440 clutch problems. I have a jd 4440 than needed a new pto clutch, so took it to my mechanic to get it done. Well when he had it apart he noticed that the drive clutch was showing some wear so replaced it to. Well now after he has it all back to together when I engage the clutch in a higher gear let's say c or d range at low throttle the ...Posted 4/18/2012 21:31 (#2342941 - in reply to #2342867) Subject: Re: JD Techs...4440 steering help needed!! SW Minnesota. the smallest peice of metal or dirt can get in those close tolorences in the valve and cause hard steering at certain spots as you turn had on two jd 9400 tractors dealer replaced the steering valve took care of the problem. 1981 John Deere 8440. Save. Drive: 4 WD. HP: 215. Hours: 8122. Wheel Type: Tires. 1981 John Deere 8440 4x4 Tractor 18.4 x 38 w/Duals, 16 speed PQ, 3 SCV, Has 50 series motor, Good old workhorse Located in Denver Iowa. $22,000 USD. Est. $415 monthly. 269.98 hp. 201.3 kW. power test details ... John Deere 8410 Engine. John Deere 8.1L 6-cyl diesel. Fuel tank: 135 gal. 511.0 L. Engine details ...Posted by david val on December 24, 2003 at 12:08:11 from (80.230.188.76): In Reply to: 4440 Charging problems posted by buckaroo on December 24, 2003 at 11:13:58: in systems with a charge control light, the voltage from the light excites the alternator to start charging. in the 4440 there is a voltmeter for monitoring charge, so instead of a ...The john deere 2640 is a reliable tractor, but electrical problems can hinder its performance. Here are some common electrical issues: Dead battery: The battery can die over time, preventing the tractor from starting. Faulty alternator: If the alternator is faulty, it may not charge the battery, leading to starting problems.

These are the parts on your John Deere 8440 4WD Tractor & Parts List that need to be regularly serviced. Part. Hour Interval. Price. 1 - Primary Air Filter AR70106. Every Every 200. Not Sold Online. 1 - Secondary Air Filter AR70107. Every Every 600.

The problem I am having is it runs fine at a medium load. I have a 1981 8440 John Deere 4WD tractor that I purchased used. The problem I am having is it runs fine at a medium load when working the field but when it needs maximum power for when I sink the cultivator to the frame the tractor shuts down. I have drained the fuel tank and checked ...I ran a 8630 with a 1850 there was never any hydraulic problems. Those 30,40,50 series tractors are just junk. I put a transmission, axle bearings and hydraulic pump in my 8630. Only owned it 2 years. Please do yourself a favor buy a 9170, 9180 CIH, 976, 946 Versatile,9680 9682 NH, 60 or 70 Deere. Anything but those 30'40'50 Deeres.John Deere Service Manual. Format: New OEM (Original Equipment Manufacturer) Pages: Complete Manual Fits: 8440 Tractor | 8640 Tractor Content: How To information for your John Deere Tractor (8440 Tractor | 8640 Tractor). How to take it apart, how to repair it, and how to put it back together. Also known as a Technical Manual, Repair Manual, Shop Manual.If it still fails to work, contact a mechanic. 3. Oil. To ensure that your 3-point hitch runs smoothly, it is important to use the correct viscosity of hyd oil. Using the wrong type of oil can lead to a variety of problems. If you're using the correct viscosity of oil, then check your oil level. The John Deere 8440 is a four-wheel drive tractor from the Iron Horses series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1979 to 1982. The John Deere 8440 is equipped with a 7.6 L (466.0 cu·in) six-cylinder diesel engine and a partial power shift with hydraulic wet disc clutch transmission with 16 forward and 6 reverse gears. 1427 posts · Joined 2015. #1 · Feb 23, 2015. We have a 8440 with 6500 hrs on it. We are suspecting a faulty injection pump. The tractor is hard to start it will crank but does not want to fire when you do get it started if you shut it off it restarts hard again sometimes you crank it for 30-40 seconds. Has anyone pulled the injection pump on ...88 posts · Joined 2006. #2 · Aug 1, 2007. You should get along fine with that tractor. We had an 8430 (blew motor and top shaft in trans), 8630 (blew a 2 speed every year), 8640 (no significant probs), & 8450 (no significant probs) over the years. 30 series reliability was very poor for us, but I think they got the bugs out in the 40 series.Clogged pump cooling fins. Air in the transmission. Solution. So, to resolve the transmission issues of the JD D140, you need to go through these steps: Fill Some Oil in Transmission. The transmission oil lubricates the moving parts and offers the system the right amount of hydraulic pressure.

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The John Deere X300 tractor is one of the most popular and reliable tractors on the market today. It has been a staple of farms and gardens for years, and its versatility makes it ...CLASSIC FARMING 175: Stephen takes us back to July 2003 to watch a John Deere 8440 and Miles mole plough at work in SuffolkFor more details, pphotographs and...Illustrated Factory Service Diagnostic and Repair Technical Manual for John Deere 4WD Articulated Tractors Models 8440, 8640 This manual contains high quality images, instructions to help you to troubleshoot, and repair your truck. ... TM1199 - John Deere 8440, 8460 4WD Articulated Tractors Diagnostic and Repair Technical Service Manual.John Deere 8440 18.4-38 10 bolt duals and 8 tires are matching, 3pt, 1000 pto, 7,604 hrs. Runs and drives like it should, reason for selling bought a bigger tractor. - Located for inspection and pick up at 767 CR 28, Corunna, IN 46730. For more Information Call or Text Robert Mishler at 260-336-...Let's dive in. John Deere 3032e Problems. 1. Starting and Electrical Problems. One of the most frustrating issues is difficulty starting the tractor. Various factors can contribute to this problem, such as a weak battery, a faulty starter motor, or issues with the ignition switch.Posted 5/18/2016 06:33 (#5307817 - in reply to #5307769) Subject: RE: John Deere 8440. Likely the "2 speed" is worn out. The shift between 1-2 and 3-4 is done by a clutch pack under the seat in the hinge area. Not too bad to replace. Our 8640 needed one 4-5 years ago, $1500-2000 if I remember correctly.Find John Deere 8440 4WD Tractor for Sale. View updated John Deere 8440 4WD Tractor specs. Get dimensions, size, weight, detailed specifications and compare to similar 4WD Tractor models.Posted 11/19/2012 13:56 (#2705987 - in reply to #2705943) Subject: Re: John Deere 8640. south central kansas. I know of a couple that went over 10,000 hrs and were never touched. I personally think the 8640 is the best one of all the 30,40,50 series 4w drive. I just got rid on my 8650 this summer and miss it dearly.Subject: John Deere 8760 tractor problem. Southeast Missouri. This tractor runs perfect for the first 30 to 45 minutes, then it's like you're shutting the key on and off. It apparently is something heating up after a little while. It has the electronic fuel pump on it. We thought it was the wiring harness going to the pump, but that did not fix it.John Deere 8440: -Price: 72000€ -Top speed: 60km/h -Horse power: 400 hp-Back Attacher-Fender Configurations-Wheel Options-Cab Configurations-Rim color configurations Changelog: Changelog 2.0.0.0: - Changed to realistic size - New Interior - Added Dirt - Added Connection Hoses - Added Foldable width posts - Better Driving ...John Deere is one of the most popular tractor and equipment manufacturers, and if you own one you know why. Owners love to bond and share knowledge with each other. The customer se... ….

There are 4 john deeres that were known to have engine problems, 1010, 2010, 8850 and the 2840. Brady. 2002 Ford F350 Crew cab, 4x4, XLT, 7.3 Powerstroke Diesel, AIS filter kit, 6 speed, Ali-arc aluminum frontend replacement. 88' Ford F250, 4x4, 7.3L Diesel, Banks Sidewinder, 5 spd, flatbed, feed-truck. 78' Ford F250 supercab, Dana 60's, C-6 ...8440 hydraulic problem. Jump to Latest Follow. 3K views 1 reply 2 participants last post by 5020man Dec 6, 2014. G. gwills Discussion starter. 4 posts · Joined 2013. #1 · Sep 2, 2013. I have hydraulic oil being pump out of transmission and into front diff and coming out of breather. Any ideas on what caused this and how to fix?Problems with our 8440? Last year had hydraulic issues and found sump screens plugged with pcs of clutch disc? Was told just PTO clutch? Cleaned those and Chiseled ground last fall with no problems. Working it this spring now, Dad was running …Before buying, you can go through the issues you may face. Hard engine starting, stalling, knocking, and struggling with lack of power are common John Deere 8430 engine problems. The hydraulic system fails to function and oil overheating is familiar to the users of this model. Some electrical issues like batteries don't charge, the starter ...John Deere 8440 Power: Engine: 215 hp 160.3 kW: PTO (claimed): 175 hp 130.5 kW: Drawbar (tested): 160.58 hp 119.7 kW: PTO (tested): 179.83 hp 134.1 kW: power test ...Explore all makes and models from John Deere Dealers nationwide. 1980 John Deere 8440 Articulated 4WD Tractor ©MachineFinder, John Deere and the associated trademarks are property and available only for the specific use of Deere & Company.Lifehacker is the ultimate authority on optimizing every aspect of your life. Do everything better.Maintenance tips for John Deere 5200. Replace engine oil and oil filter. Check for leaks. Clean or replace the air filter to ensure proper engine performance. Replace the fuel filter to prevent fuel system issues. Inspect coolant level and condition. Top up … John deere 8440 problems, Problem is, John Deere, to their benefit, have a great records keeping setup. Every warranty item that has been done to it is available to any JD dealer via computer. That means anyone wanting to buy it could possibly get its track record and have second thoughts when looking at the list of repairs. Thats a real shame that you have had such ..., 8440 hydraulic problem. Jump to Latest Follow. 3K views 1 reply 2 participants last post by 5020man Dec 6, 2014. G. gwills Discussion starter. 4 posts · Joined 2013. #1 · Sep 2, 2013. I have hydraulic oil being pump out of transmission and into front diff and coming out of breather. Any ideas on what caused this and how to fix?, Difficulty Steering. It is a prevalent problem in John Deere Z540M models that usually causes the mower to be unable to steer or respond appropriately to the steering inputs.If your John Deere Z540M steering is tricky, there might be a worn-out steering gear or linkage.You should always replace a malfunctioning steering gear or link to solve difficulty steering., I have a John Deere 8440 and a 4430 and both of them are a pain to start when it is under 50 degrees outside. I'm wondering if the valves need to be set. They both have around 6000 hours on them. The 8440 is hard to turn over and even hard to start when plugged in. The 4430 starts easily if plugged in for a while. Thanks for any information., The John Deere 1450 is equipped with a power assist steering system, differential hydraulic wet disc brakes, 6.50x16 front tires, and 14.9x28 rear tires. The wheel base is 82.8" (2100 mm). The tractor is compatible with John Deere 100 front end loader with a max lift height of 109 in (2760 mm) and lift capacity to max height of 1760 lbs (798 kg ..., No photos of the John Deere 840 are currently available. To submit yours, email it to [email protected]. Photos may only be used with the permission of the original photographer. Capacity: Fuel: 20.6 gal 78.0 L: Hydraulic system: 10.8 gal 40.9 L: Hydraulics: Type: closed center: Capacity: 10.8 gal 40.9 L: Pump flow: 6.1 gpm 23.1 lpm:, 5 days ago · 8440 4 wheel drive? Reverse is mechanical only if all forward speeds work then the problem is on the transmission top shaft. Remove the complete fender assembly and remove the transmission tin cover and can see the top shaft easily. John Deere 8440 reverse not working - bradthesing : 4/29/2024 09:10. , Solution: Check the fuse for the fuel gauge. If the fuse is not securely in the socket, fix it. And if the fuse is blown, replace it. Remove the fuel sender and measure the pressure with a fuel pressure gauge. you will find the recommended fuel pressure in the owner's manual of your John Deere 4520 tractor., John Deere 8440, 8640 Tractors service repair manual is the same manual used by professional technicians, mechanics and workshops around the world. John Deere 8440, 8640 Tractors service repair manual has easy-to-read text sections with top quality diagrams and instructions, will guide you through fundamentals of maintaining and repairing, step ..., 💰 Neglecting John Deere 3 Point Hitch Problems: Costly Consequences. Regular maintenance of your John Deere tractor is key to preventing common issues from arising, protecting it from further damage and costly repairs. Staying up-to-date on the most common problems that may occur with a John Deere tractor and understanding their …, John Deere 8440, 8640 Tractors service repair manual is the same manual used by professional technicians, mechanics and workshops around the world. John Deere 8440, 8640 Tractors service repair manual has easy-to-read text sections with top quality diagrams and instructions, will guide you through fundamentals of maintaining and repairing, step ..., 1. Engine Problems. One of the most common issues faced by John Deere 4400 owners is engine problems. If you notice your engine running rough, experiencing a loss of power, or emitting excessive smoke, it's likely time to address the issue. Start by checking the air filter and cleaning or replacing it if necessary., Those engines on the average would get at least 6 to 7000 hrs before problems set in with that older design from the 8430, 8630, 8440, 8640, 8450, 8650 & 8850. With the design up in front of the radiator the air flow would get cut down by at least 25% so things could get hotter for the engine-the first trip wire was the head gasket, if the ..., New User. 6 minutes ago. #1. I'm going to look at a well-used John Deere 8440 and the seller says the reverse doesn't always work. Probably less than 75% of the time. Aside from linkages, what typically would be the cause of this?, Posted 2/26/2012 21:21 (#2253851 - in reply to #2253318) Subject: Re: John Deere 4040 problems. 4040 tractor,once running, will drive with batteries removed. Fuel system is either becoming air bound due to restriction in the return side or not getting fuel on the supply side to the injection pump.The fuel pump (not injection pump) are suspect ..., Before buying, you can go through the issues you may face. Hard engine starting, stalling, knocking, and struggling with lack of power are common John Deere 8430 engine problems. The hydraulic system fails to function and oil overheating is familiar to the users of this model. Some electrical issues like batteries don't charge, the starter ..., The john deere 2640 is a reliable tractor, but electrical problems can hinder its performance. Here are some common electrical issues: Dead battery: The battery can die over time, preventing the tractor from starting. Faulty alternator: If the alternator is faulty, it may not charge the battery, leading to starting problems. , 5 days ago · New User. 6 minutes ago. #1. I'm going to look at a well-used John Deere 8440 and the seller says the reverse doesn't always work. Probably less than 75% of the time. Aside from linkages, what typically would be the cause of this? , Hi, having a problem with my mustang telehandler machine. Has a John Deere 4.5 L engine. Fuel not coming out of high pressure pump all the time. ... i HAVE AN OLDER 8440 John Deere 4wd tractor that has a hydraulic problem. When cold the clutch works fine, ..., John Deere is about best place for a New pump. Last I priced one a couple years ago 2400 for a 4450. First thing check all external lines. If any have been replaced with a hose that should be steel tube. Remove hose find right tube then proceed to publicly flog and whip owner of tractor with hose. Get a. Service manual to check trans flow., Montana Auction Company. Sidney, Montana 59270. Phone: (406) 480-2778. View Details. Email Seller Video Chat. John Deere 8440, 14ft John Deere blade, 18.4-38 rubber, 3 remotes, PTO, missing right side engine panel, starts right up and operates as it should, blade needs new cutting edge, shows 1775 hours., 1/32 JOHN DEERE 8440 4WD, # 45119. lube01 Toy Tractors (1666) 100% positive; Seller's other items Seller's other items; Contact seller; US $70.00. Condition: New New. ... John Deere John Deere 1:32 Contemporary Manufacture Diecast Farm Vehicles, WIKING John Deere Diecast & Toy 1:32,, 1980 JOHN DEERE 8440. Compare. 175 HP to 299 HP Tractors. View My Watch List. Select Your Currency. $20,900. Email Seller. Get Financing*. Machine Location: 12433 County Hwy S Chippewa Falls, Wisconsin 54729., John Deere 8440 Front Grille Assembly, Used for sale, 496820. For John Deere tractor models 8430, 8440, 8630, 8640Replaces John Deere OEM nos AR68539Additional Handling and Oversize Fees Apply To This ItemUsed items are not always in stock. If we are unable to ship this part we will contact you within one business day. for sale. Item 496820, Replaces John Deere OEM nos R71530. Camshaft fits John Deere 6466A 6466T 6466D 7700 4640 8650 4040 4650 6600 4440 8450 4230 4850 6620 4450 8640 4240 8430 4250 8440 4050 4840 R71530 The store will not work correctly in the case when cookies are disabled., Subject: Re: What's wrong with JD 4840s. Northern Illinois. 4840 was a great tractor, but as stated previously, only 1 pto option, and most that want 200 hp are going to get an 8 wheeler, or a FWA. The reason the 4440 is so popular is it has both ptos, 140 hp, and is a small enough tractor to do lots of jobs, but also big enough to do many jobs ..., Compatible with John Deere Tractor(s) 4030, 4040, 4230, 4240, 4430, 4440, 4630, 4640, 4840, 8430, 8440, 8630, 8640; Replaces John Deere OEM nos AR82561; 3rd or 4th Valve with ISO style couplers; To validate your warranty: A contaminated system should be completely flushed by an authorized dealer. Use new, clean fluid and filters, Details. Compatible with John Deere Tractor (s) 8430, 8440, 8630, 8640. Replaces John Deere OEM nos AR68539. Additional Handling & Oversize Fees Apply To This Item. Due to the nature of used parts, this part may not be in stock at all times. We will notify you within one business day if we are unable to ship the part for any reason., 6404 engine 7500 hrs no turbo, Unit started to get engine oil in the coolant, last year, head was removed and surfaced pressure checked, valves ground ect. Oil cooler was replaced, 6 months later the unit is still getting a lot of scum oil in radiator and block, was cleaned out and coolant flushed, still continues to get oil in coolant., Posted 6/4/2023 07:25 (#10256219 - in reply to #10256204) Subject: RE: John Deere 8640 Problems. ecmn. Sounds like 2 speed or clutch issue. When pushing the clutch pedal down you are stopping oil to the clutch, would make sense that is when the 3 pt works, 2 speed isn't that bad, turn all the way to the right, remove top shaft and you can see ..., Cylinder Head with Valves for John Deere Harvester(s) 5440, 5460, 5720, 5730, 5820, 5830, Tractor(s) 8440, 8450, 8630, 8640, 8650. Replaces Casting nos R57425. ... Remanufactured Cylinder Head with Valves fits John Deere 5460 5830 5730 5720 8630 8440 8640 8450 5440 8650 5820 ;, The 8410 is 995 miles away, will likely spend $8k getting it to me, so costing $68,000. The 8420 is 200 miles away, so no additional cost, or trouble getting it to my farm. That is still $19,500 for 800 hours difference. The 8420 seems a bit overpriced in my comparison. At $20 per hour, $16,000 for the difference in hours, $3500 too high., Posted 11/24/2023 21:56 (#10495752 - in reply to #10495112) Subject: RE: John Deere 8640 Questions N Central IA If it’s smoking that means you have fuel, now you need to figure out why you don’t have the air to match the fuel.