John Deere 1840F Tractor Parts
1840F parts and accessories
The John Deere 1840F was a popular utility tractor manufactured in the early 1980s, offering a blend of reliability and versatility for diverse farming operations. Powered by a robust diesel engine producing around 52 horsepower, it delivered ample power for various tasks. Its strong PTO, rated at approximately 47 horsepower, made it a favorite for running implements like mowers and balers, cementing its place as a dependable workhorse on farms.
The John Deere 1840F, introduced in the early 1980s, quickly became a staple on farms seeking a versatile and dependable utility tractor. It was designed to handle a wide range of tasks, from field work to loader operations. At its heart was a Yanmar 3T90J diesel engine, a 3-cylinder powerplant displacing 90 cubic inches (1.5 liters) and producing approximately 52 horsepower. This engine provided a good balance of power and fuel efficiency, making it economical to operate. The 1840F typically came equipped with a gear-driven transmission, offering 8 forward and 4 reverse speeds. This provided a good range of options for matching ground speed to the task at hand. The independent PTO delivered around 47 horsepower at 540 RPM, enabling the tractor to power a variety of implements. The hydraulic system had a capacity of around 9 GPM and typically featured 2 remote valves, allowing for operation of hydraulic cylinders on implements. The 3-point hitch was a Category II, offering a lift capacity of around 2600 lbs, making it suitable for attaching a wide array of implements. Compared to other models in the John Deere lineup, the 1840F offered a good combination of size, power, and features. It was larger and more powerful than smaller compact tractors, but more nimble and affordable than larger row-crop tractors, making it a popular choice for small to medium-sized farms engaged in hay production, livestock operations, and light tillage.
Specifications
| Engine | Yanmar 3T90J 52 HP 90 ci Diesel |
|---|---|
| PTO HP | 47 HP @ 540 RPM |
| Transmission | Gear 8F/4R |
| Hydraulics | 9 GPM, 2 remotes |
| 3-Point Hitch | Category II, 2600 lbs |
| Fuel Capacity | 14 gallons |
| Weight | 4800 lbs |
| Years Produced | Early 1980s |
Maintenance Tips
- Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation. Use a high-quality diesel engine oil meeting API CI-4 or higher specifications for optimal engine protection.
- Hydraulic System Maintenance: Inspect hydraulic fluid levels regularly and change the hydraulic fluid and filter every 500 hours. Ensure proper cleanliness to prevent contamination and maintain hydraulic system performance.
- Fuel System Care: Use clean, fresh diesel fuel and check the fuel filter regularly. Drain any water or sediment from the fuel tank periodically to prevent fuel system issues.
- Seasonal Storage: Before storing the tractor for an extended period, stabilize the fuel with a fuel stabilizer, change the engine oil and filter, and grease all lubrication points. Disconnect the battery and store it in a cool, dry place.
History & Background
The John Deere 1840F was introduced as part of a broader line of utility tractors designed to meet the needs of farmers seeking a reliable and versatile machine. It represented a step up in power and capability from smaller compact tractors, while remaining more maneuverable and economical than larger row-crop models. The 1840F played a significant role in supporting diverse farming operations during its production years.
Frequently Asked Questions
What engine is in the John Deere 1840F?
The John Deere 1840F is powered by a Yanmar 3T90J 3-cylinder diesel engine, producing approximately 52 horsepower.
What is the PTO horsepower on a 1840F?
The PTO horsepower on the John Deere 1840F is approximately 47 horsepower at 540 RPM.
What oil filter fits the 1840F?
The oil filter commonly used for the John Deere 1840F is a John Deere M806418 or equivalent. Cross-references include Fram PH3593A, Wix 51365, and Baldwin B1421.
What are common parts needed for the 1840F?
Common wear parts for the John Deere 1840F include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic cylinder seals, steering components (tie rod ends, ball joints), clutch discs, and brake pads.

RE27352 - Main (Std) Bearing
SKU: RE27352
160 in stock

RE27349 - Connecting Rod (.010") Bearing Set
SKU: RE27349
159 in stock

RE26283 - Balancer with Gear (LH) Shaft
SKU: RE26283
3 in stock

RE26282 - Balancer w/ Gear (RH) Shaft
SKU: RE26282
5 in stock

RE20585 - Crankshaft
SKU: RE20585
4 in stock

RE19282 - PISTON
SKU: RE19282
14 in stock

RE16920 - Upper Set (276) Gasket
SKU: RE16920
109 in stock

R80135 - Oil Filler Cap Gasket
SKU: R80135
29 in stock

AT27622 - Return Fuel Tee
SKU: AT27622
105 in stock

T22260 - Steering Shaft Seal
SKU: T22260
29 in stock

R28023 - Clamp
SKU: R28023
345 in stock

L39324 - Tie Rod Tube
SKU: L39324
27 in stock

L32308 - Tie Rod Tube
SKU: L32308
101 in stock

AT27131 - Long Outer Tie Rod
SKU: AT27131
14 in stock

AT27130 - Inner Tie Rod
SKU: AT27130
309 in stock

AR26480 - Seal
SKU: AR26480
90 in stock

AL82828 - Tie Rod Assembly
SKU: AL82828
38 in stock

AL82826 - Tie Rod
SKU: AL82826
72 in stock

AL38097 - Tie Rod Assembly
SKU: AL38097
31 in stock

AL37505 - Tie Rod
SKU: AL37505
127 in stock

AL37204 - Tie Rod
SKU: AL37204
10 in stock

AL37193 - Tie Rod End
SKU: AL37193
1 in stock

AL32866 - Hydrostatic Steering Cylinder End
SKU: AL32866
4 in stock

AL113451 - Tie Rod Boot
SKU: AL113451
153 in stock
