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About the John Deere 840

The John Deere 840 Tractor was manufactured between 1976 and 1986. Sometimes, the parts compatibility is determined by the serial number of your John Deere 840 Tractor, and that info should be listed on the part fit notes. They also have hydraulic wet disc brakes. The type II/I 3-point hitch is very reliable, capable to lift 4878 lbs [2212 kg]. It is also worth noting that the live rear PTO runs at 540 rpms and the fact that there are not many tractors equipped with an optional front PTO like this one. The John Deere 840 has a closed center hydraulics system with a 10.8 gal [40.9 L] capacity. The pump does the job pushing 6.1 gpm [23.1 lpm] fluids in the hydraulics system.

Parts for John Deere 840 Tractor

Universal View All Universal Products

Air Cleaner Components


11' Dual Clutch

11' Single Clutch

12-5/8' Clutch

Double Clutch

Single Clutch

Cooling System

Engine Overhaul Kits

Engine Parts

3-179 Diesel

A301D SN

Engine Related Parts

Exhaust System Parts


Gaskets/Gasket Sets



Front Axle/Steering Parts

Fuel System

Hitch & Drawbar Parts

Hydraulic System

Ignition & Electrical Parts

Mufflers/Exhaust Pipes

PTO Components

Rims & Wheels


Transmission & Rear Axle

John Deere 840 Tractor Manuals

  • OPERATORS MANUAL John Deere 840 Diesel Wheel Tractor