John Deere 8450 Production ended · 4WD
185 hp
Lineage ← Predecessor 8440 1979–1982 · 215 hp This model 8450 1982–1988 · 185 hp
Successor → 8560 1989–1993 · 235 hp Power specifications Engine 225 hp unspecified PTO 185 hp claimed PTO, tested 187 hp Drawbar 173.5 hp tested Listed power 225 hp engine basis
Engines fitted to the John Deere 8450 John Deere 7.6L 6-cyl dieselDiesel · 6 cyl 466 ci
Engine details John Deere 7.6L 6-cyl diesel Bore × stroke 4.56 in × 4.75 in Rated speed 2,100 rpm Rated power 225 hp Compression 15.5:1 Cooling liquid-cooled Firing order 1-5-3-6-2-4 Transmissions for the John Deere 8450 Quad-Rangepartial power shift 16F / 6R
Transmission notes Quad-Range: Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range.
Weight specifications Weight 29,150 lb operating Shipping 27,560 lb
Dimensions specifications Wheelbase 125 in Length 223.5 in
Capacities specifications Fuel tank 185 gal Hydraulic system 37.5 gal
Hydraulics specifications System closed center constant-pressure Pump flow 32 gpm Remote valves 2 to 4
Hitch specifications Rear hitch category 3/3N Control lower-link draft sensing Rear lift capacity 9,262 lb
PTO specifications Rear PTO independent Rear PTO speeds 1000 (1.75) Clutch hydraulic wet disc
Chassis specifications Drive 4WD Steering Articulated power steering Brakes Power wet disc brakes Differential lock electro-hydraulic front and rear Final drives inboard planetary Cab Sound-Gard cab with air-conditioning
Tires specifications Front 18.4-34 Rear 18.4-34
Electrical specifications System voltage 6 V Batteries 2 Cold cranking 800 CCA Charging alternator Charging output 110 A Ground negative
Production specifications Price new $78,707 (1983) Factories Waterloo, Iowa, USA Built by John Deere
Data from TractorData.com , last updated there 18 April 2022; collected 7 October 2026. See sources and attribution .
No records for: tracks.
The John Deere model 8450 was introduced, along with the 8650 and 8850, in 1982 as replacements for the 40-series four-wheel drive tractors. Efficiency was the focus of Deere's advertising for these tractor models. Deere promoted the ability of the 8450 to perform planting and cultivation work, the duals could be set to navigate 30-inch crop rows. The 8450 also had a full-power PTO available, along with Load-and-Depth control on the three-point hitch.