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Parts for International Harvester 3688 Tractor

Air Conditioning

A/C Hose Lines/Kits

Blower Wheels

Blower/Condenser Motors


Compressor Clutches

Compressor/Compressor Kits


Electrical Parts


Evaporator/Temp Controls

Expansion Valves

O-rings/ Fittings/ Misc

Receiver Driers



Cab Parts


Clutch Parts


Single Clutch

Cooling System

Draft Sensing Parts


Engine Overhaul Kits

Engine Parts

Camshaft & Components

Crankshaft & Components

Engine Oil Pump, Cooler, and Related

Engine Related Parts


Gaskets/Gasket Sets

I.H. D436 Diesel

Exhaust System


Front Axle/Steering Parts

Axle Related Parts

Axles and Knees


Spindles and Related Parts

Steering Arms and Shafts

Steering Cylinders and Repair Kits

Steering Related Parts

Tie Rods and Ball Joints

Wheel Bearings and Sleeves

Wheel Components

Fuel System

Hitch & Drawbar Parts

Hydraulic System

Ignition & Electrical Parts

PTO Components

Rims & Wheels


Deluxe Grammer - Brown Fabric

Deluxe Grammer - Burgundy Fabric

Deluxe Sears - Brown Fabric

Deluxe Sears - Burgundy Fabric

Suspension Assemblies

Vertical Acting/Hyd. - Black Fabric

Vertical Acting/Hyd. - Black Vinyl

Vertical Acting/Hyd. - Brown Fabric

Vertical Acting/Hyd. - Red Fabric

Hoods, Cowls, Grilles, Panels, Screens

Transmission & Rear Axle

Clutch Plates and Disks

Clutch Related Parts

Differential Components

Hydraulic Torque Amplifier/Components

IPTO Drive Gears/Seals

IPTO Gasket Kits/Clutch Packs

IPTO Shafts/Components

Range & Speed Cover/Shift Components

Range/Speed Shafts

Rear Axles and Hub Parts

Ring Gear & Pinions

Ring Gear and Pinions

Special Tools

Torque Amplifier Components

Trans: Forks, Gears, Shafts

Transmission Gears

Transmission Related Parts

More about the International Harvester 3688

International Harvester started producing the 3688 Tractor in 1981 and continued until 1985. Regardless of whether you initially got a deal on your tractor (lower than the initial price of $45,000 (1981)), with TractorJoe you'll get the best deal on the spare parts you need. You can find in our inventory every kind of spare part you might need to keep your International Harvester 3688 Tractor running smoothly. Sometimes, the parts compatibility is determined by the serial number of your International Harvester 3688 Tractor, and that info should be listed on the part fit notes. If you don't have the serial number of your tractor, you can find it on the right side of frame ahead of rear axle. The serial number starts from 501 for a 1981 model, from 1743 for a 1982 model, from 2482 for a 1983 model, from 2695 for a 1984 model, from 3068 for a 1985 model. Some International Harvester 3688 Tractors have a 4x2 2WD chassis, but there are also some with a 4x4 MFWD 4WD optional chassis, all equipped with hydrostatic power steering. They also have power disc brakes. The type III 3-point hitch is very reliable. It is also worth noting that the independent rear PTO runs at 540/1000 rpms. The International Harvester 3688 has a closed center hydraulics system with a 22.5 gal [85.2 L] capacity. The pump does the job pushing 18 gpm [68.1 lpm] fluids in the hydraulics system.