1W6987 Valve A Fits Caterpillar Models

One New Aftermarket Replacement Fuel Injection Pump Check Valve for Caterpillar (Cat) Equipment

This aftermarket replacement check valve (1W6987) is a critical component of the fuel injection pump system on Caterpillar (Cat) diesel engines. Check valves regulate fuel flow direction within the injection pump, ensuring consistent fuel delivery to the engine cylinders for reliable starting and performance. This part is also cataloged as a Valve Assembly (VALVE AS-CHECK) and is used across a wide range of Cat construction, industrial, and power generation equipment.

Specifications

• Part Type: Fuel Injection Pump Check Valve
• Dimensions: 3.75 x 2.75 x 0.5 in. (approximate)
• Weight: 0.1 lbs.
• Interchange: 1W-6987

Compatible Models

Caterpillar Motor Graders: 120G, 12G, 12H, 12H ES, 12H NA, 130G, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA

Caterpillar Engines (Industrial / Gen Set / Marine): 3204, 3208, 3304, 3304B, 3306, 3306B, 3306C, 3408, 3408C, 3412, 3412C, 3412D

Caterpillar Excavators: 215, 235B, 235C, 330, 330 FM L, 330 L, 330B, 330B L, 350, E180

Caterpillar Articulated Trucks: D250E, D250E II, D25C, D25D, D300B, D300D, D300E, D300E II, D30C, D30D

Caterpillar Track-Type Tractors: D4E SR, D4H, D4H XL, D5E, D5H, D5H XL, D6D, D6E, D6E SR, D6G SR, D6G2 LGP, D6G2 XL, D6H, D6H XL, D6H XR, D6R, D7G, D7G2, D7H, D7R, D9R, D10N

Caterpillar Cold Planers: PM-565, PR-1000, PR-450C, PR-750B

Caterpillar Pipelayers: 572G, 572R, 589

Caterpillar Track Loaders: 973, 973C

Caterpillar Track Skidders: 517, 527, D4HTSK II, D4HTSK III, D5HTSK II

Caterpillar Load Haul Dump: R1300, R1300G, W330BMH

Caterpillar Soil / Landfill Compactors: 815B, 815F, 816B, 816F

Caterpillar Quarry / Off-Highway Trucks: 769C, 771C, 773B, 775B

Caterpillar Power Modules / Gen Sets: PM3412, 3304B, 3306B, 3408C, 3412C

Replaces Part Number(s):

1W6987, 1W-6987

New aftermarket replacement part - not remanufactured, not used.