John Deere 8450 Tractor Parts
8450 parts and accessories
The John Deere 8450, manufactured from 1981 to 1986, was a powerful and popular tractor among farmers needing robust tillage capabilities. Powered by a 300 HP diesel engine and delivering substantial PTO horsepower, the 8450 offered reliable performance in demanding agricultural applications. Its articulated frame and advanced hydraulics made it a favorite for large-scale row crop operations.
The John Deere 8450 was introduced in 1981 as part of John Deere's lineup of high-horsepower, four-wheel-drive tractors. Production continued through 1986. This model featured a John Deere 6466A six-cylinder turbocharged diesel engine, delivering approximately 300 horsepower. The engine had a displacement of 466 cubic inches. The 8450 came standard with a 12-speed Quad Range transmission, offering a wide range of gear ratios for various field conditions. The PTO horsepower was rated at 240 hp, and it featured a 1000 RPM PTO shaft. Hydraulic capacity was significant, with a flow rate around 30 GPM, powering multiple remote hydraulic valves. The 3-point hitch was a Category III, capable of lifting substantial implements for tillage and planting. Commonly used for row crop farming, hay production, and heavy tillage operations, the 8450 distinguished itself from other models with its larger engine and increased hydraulic capacity compared to smaller tractors in the John Deere range. Its articulated design provided enhanced maneuverability, and its robust construction ensured longevity in demanding farming environments.
Specifications
| Engine | John Deere 6466A 300 HP 466 ci Diesel |
|---|---|
| PTO HP | 240 HP @ 1000 RPM |
| Transmission | Quad Range 12-speed |
| Hydraulics | 30 GPM, 4 remotes |
| 3-Point Hitch | Category III, 8,700 lbs |
| Fuel Capacity | 150 gallons |
| Weight | 24,700 lbs |
| Years Produced | 1981-1986 |
Maintenance Tips
- Change engine oil and filter every 250 hours using a high-quality diesel engine oil and a genuine John Deere or equivalent filter.
- Inspect and maintain hydraulic fluid levels and filters regularly to prevent contamination and ensure optimal hydraulic system performance. Change hydraulic fluid per manufacturer recommendations (typically every 1000-1500 hours).
- Use clean, high-quality diesel fuel and replace fuel filters according to the service schedule to prevent fuel system problems. Inspect fuel lines for cracks or leaks.
- Before seasonal storage, properly prepare the tractor by draining fluids, adding fuel stabilizer, and protecting against corrosion to ensure easy start-up and longevity.
History & Background
The John Deere 8450 was a significant addition to John Deere's four-wheel-drive tractor lineup in the early 1980s. Designed to meet the increasing demands of large-scale farming operations, it offered a substantial increase in power and hydraulic capacity. Its success contributed to John Deere's reputation for producing reliable and high-performance agricultural equipment.
Frequently Asked Questions
What engine is in the John Deere 8450?
The John Deere 8450 is equipped with a John Deere 6466A six-cylinder turbocharged diesel engine, producing approximately 300 horsepower.
What is the PTO horsepower on a 8450?
The PTO horsepower of the John Deere 8450 is rated at 240 hp, and it utilizes a 1000 RPM PTO shaft.
What oil filter fits the 8450?
The recommended oil filter for the John Deere 8450 is typically a John Deere AR51741 or equivalent. Cross-references include Wix 51794, Baldwin B232, and Fleetguard LF3349.
What are common parts needed for the 8450?
Common wear parts for the John Deere 8450 include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic seals, steering components, clutch parts, and various bushings and bearings in the driveline.

M40514 - External; 10/Pack Snap Ring
SKU: M40514
440 in stock

F1870R - Durometer 70 (5/Pack) O-Ring; 2.234" ID X 2.512" OD X .139" Thick
SKU: F1870R
655 in stock

B3690R - Durometer 75 (5/Pack) O-Ring; 1.859" ID X 2.137" OD X .139" Thick
SKU: B3690R
425 in stock

B2762R - Durometer 70 (10/Pack) .139" Thick O-Ring; .734" ID X 1.012" OD
SKU: B2762R
1620 in stock

A5598R - Durometer 70 (2/Pack) .210" Thick O-Ring; 3.600" ID X 4.020" OD
SKU: A5598R
234 in stock

WL7610 - Trapezoid LED Light Assembly
SKU: WL7610
63 in stock

WL7606 - Flood LED Light Assembly
SKU: WL7606
365 in stock

WL4460 - Hi / Low LED Sealed Beam
SKU: WL4460
309 in stock

WL2116 - 4 1/2" Diameter Trapezoid LED Sealed Beam
SKU: WL2116
364 in stock

WL1116 - 4 1/2" Diameter Flood LED Sealed Beam
SKU: WL1116
837 in stock

RE336112 - Trapezoid Worklight; Round LED Lamp
SKU: RE336112
364 in stock

RE336111 - Flood Worklight; LED Lamp
SKU: RE336111
837 in stock

R42689 - Lamp Bezel
SKU: R42689
274 in stock

AR78825LED - Red LED Tail / Warning Light
SKU: AR78825LED
273 in stock

AR60250 - LED Amber Flasher / Turn Signal Lamp
SKU: AR60250
595 in stock

AR104119 - Halogen Sealed Beam Lamp (12 Volt)
SKU: AR104119
343 in stock

AF3892R - Sealed Beam Bulb (12 Volt)
SKU: AF3892R
130 in stock

RG20142 - Major Engine Overhaul Kit
SKU: RG20142
Out of stock

RG18845 - Major Engine Overhaul Kit
SKU: RG18845
Out of stock

IK20142 - In Frame Engine Overhaul Kit
SKU: IK20142
2 in stock

IK18845 - IN FRAME OH KIT
SKU: IK18845
16 in stock

RE66985 - Breakaway Coupler Overhaul Kit
SKU: RE66985
141 in stock

RE29109 - 65 cm3 (4 In. 3) Hydraulic Pump Overhaul Kit
SKU: RE29109
24 in stock

RE28790 - Hydraulic Pump Seal
SKU: RE28790
91 in stock
