John Deere 4250 Tractor Parts
4250 parts and accessories
The John Deere 4250, manufactured from 1981 to 1986, was a popular workhorse on farms across the country. Powered by a robust 120-horsepower diesel engine, it delivered a reliable 100 PTO horsepower. Farmers appreciated its versatility and dependability in a variety of agricultural applications, making it a sought-after tractor in its class.
Introduced in 1981 as part of the John Deere Series 50 line, the 4250 quickly gained a reputation for its reliability and power. Production continued until 1986. Under the hood resides a John Deere 6.8L (414 cu in) 6-cylinder diesel engine, producing approximately 120 engine horsepower. The engine is naturally aspirated and designed for efficient fuel consumption. Transmission options included a Quad-Range transmission with 16 forward and 6 reverse gears, providing excellent speed control for different field operations. The independent PTO delivers 100 horsepower at either 540 or 1000 RPM, catering to a wide range of implements. Its hydraulic system boasts a capacity of around 29 GPM, powering two or three rear remotes. The Category II 3-point hitch offers a lift capacity of approximately 6,200 lbs, making it suitable for various row crop, haying, and livestock operations. Compared to models like the 4050 or 4450, the 4250 offered a balanced combination of power and maneuverability, making it an ideal choice for medium-sized farms.
Specifications
| Engine | John Deere 6.8L Diesel, 120 HP |
|---|---|
| PTO HP | 100 HP @ 540/1000 RPM |
| Transmission | Quad-Range, 16 forward and 6 reverse |
| Hydraulics | 29 GPM, 2-3 remotes |
| 3-Point Hitch | Category II, 6200 lbs |
| Fuel Capacity | 44 gallons |
| Weight | 12,800 lbs |
| Years Produced | 1981-1986 |
Maintenance Tips
- Engine Oil and Filter: Change engine oil and filter every 250 hours of operation using the recommended John Deere oil specification. Regularly check oil levels.
- Hydraulic System: Inspect hydraulic oil levels and change hydraulic filters every 500 hours. Use John Deere Hy-Gard or equivalent hydraulic fluid to prevent wear and ensure proper function.
- Fuel System: Use clean, high-quality diesel fuel and replace fuel filters every 250 hours. Check for water and sediment in the fuel tank regularly, especially before seasonal storage.
- Seasonal Storage: Before storing the tractor for extended periods, drain fuel, add fuel stabilizer, change engine oil, grease all fittings, and disconnect the battery. Store in a dry, covered location.
History & Background
The John Deere 4250 was launched in 1981 as part of the '50 series' tractors. No major design changes occurred during its production run from 1981-1986. It remains a popular choice for farmers due to its reliability, ease of maintenance, and affordability, contributing significantly to John Deere's legacy in agricultural machinery.
Frequently Asked Questions
What engine is in the John Deere 4250?
The John Deere 4250 is equipped with a John Deere 6.8L (414 cubic inch) 6-cylinder diesel engine producing approximately 120 horsepower.
What is the PTO horsepower on a 4250?
The John Deere 4250 delivers 100 PTO horsepower and offers both 540 and 1000 RPM PTO options.
What oil filter fits the 4250?
The John Deere 4250 typically uses a John Deere AR51736 oil filter. Common cross-references include Wix 51791, Fram PH3756, and Baldwin B232.
What are common parts needed for the 4250?
Common wear parts for the John Deere 4250 include: oil filters, fuel filters, air filters, hydraulic filters, belts (fan belt, alternator belt), hydraulic cylinder seals, steering components (tie rod ends), and clutch components.

T20328 - Oil Filler Cap Gasket
SKU: T20328
23 in stock

RE520036 - Rear Crankshaft Seal
SKU: RE520036
509 in stock

RE27667 - Fuel Lift Transfer Pump
SKU: RE27667
1957 in stock

RE19778 - Turbocharger
SKU: RE19778
102 in stock

T20129 - Valve Stem Cap
SKU: T20129
412 in stock

T20077 - Valve Keeper
SKU: T20077
2606 in stock

RE65265 - Hand Primer
SKU: RE65265
264 in stock

RE62777 - Exhaust Manifold; Outer (2/Pack) Gasket
SKU: RE62777
1478 in stock

RE53422 - Crankshaft w/ A-R26049 Gear
SKU: RE53422
Out of stock

RE524752 - Overhaul (With Seals) Gasket Set
SKU: RE524752
11 in stock

RE524395 - Overhaul without Seals Gasket Set
SKU: RE524395
3 in stock

RE524105 - Oil Cooler To Block Gasket
SKU: RE524105
137 in stock

RE507076 - Engine Oil Pump
SKU: RE507076
50 in stock

RE48380 - Piston Rings
SKU: RE48380
55 in stock

RE47793 - Engine Coolant Temperature Sensor
SKU: RE47793
59 in stock

RE47336G - Head Gasket
SKU: RE47336G
3 in stock

RE47336 - Head Gasket
SKU: RE47336
3 in stock

RE42653 - Oil Pump Intake
SKU: RE42653
18 in stock

RE37503 - Pencil Injector
SKU: RE37503
57 in stock

RE32011 - Fuel Injection Nozzle Seal O-Ring Kit
SKU: RE32011
392 in stock

RE27786 - Leak-Off Fuel Line
SKU: RE27786
308 in stock

RE22764 - Rear Crankshaft Seal
SKU: RE22764
509 in stock

RE20042 - Fuel Pump
SKU: RE20042
5 in stock

RE12326 - Outer Tie Rod
SKU: RE12326
14 in stock
