4P1639 Seal for Caterpillar Equipment

4P1639 is an O-ring seal used in Caterpillar equipment, including tracked bulldozers, off-road dump trucks, wheel bulldozers, wheel loaders, pipe-layers, compactors, tractors-scrapers, industrial engines, ship equipment, and engine-generator kits. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the Caterpillar reference 4P-1639 and is listed for the equipment models and engine applications shown below.

Fitment

• Tracked bulldozers: 10U, 10, 10SU, 58, 58L, 59, 59L, 59N, 8, 8A, 8S, 9, 9SU, 9U, D10N, D8L, D9 GC, D9N, D9R.
• Off-road dump trucks: 768C, 769C, 771C, 772B, 773B, 775B.
• Wheel bulldozers: 834B, 834S, 834U.
• Engine and generator kits: 3412C.
• Wheeled tractor-scrapers: 631E, 637E, 651E, 657E.
• Industrial engines: 3406, 3408, 3408B, 3408C, 3412, 3412C, 3412D.
• Ship equipment: 3408, 3408B.
• Pipe-layers: 589.
• Wheel loaders: 988B, 988F, 990, 992C, 992D.
• Ground compactors for earthwork: 836.

Cross-reference numbers

• 4P-1639

Specifications

• Part type: O-ring seal.
• Equipment brand: Caterpillar.
• Main seal material: Rubber.
• Inner diameter: 40 mm.
• Cross-section direction: Diameter of hole facing the outer edge.
• Weight: 0.1 lb.
• Length: 8.89 cm.
• Width: 15.24 cm.
• Depth: 1.27 cm.