1003877 Retainer, Spring Fits Caterpillar Models
1003877 Retainer, Spring Fits Caterpillar Models
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One New Aftermarket Replacement Valve Spring Retainer for Caterpillar (Cat) 3500 Series Engines
This valve spring retainer (part number 1003877, also formatted as 100-3877) is a valvetrain component used in Caterpillar 3500 family engines. The retainer secures the valve spring in place against the valve stem, maintaining correct valve spring tension and ensuring proper valve operation during engine cycles. It is commonly serviced during top-end engine rebuilds and valve jobs on heavy equipment and off-highway trucks powered by the Cat 3500 engine series.
Specifications
- Length: 3.75 in (95.25 mm)
- Width: 2.75 in (69.85 mm)
- Height: 0.35 in (8.89 mm)
- Weight: 0.11 lbs (0.05 kg)
Compatible Models
Caterpillar Engines: 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C
Caterpillar Off-Highway Trucks: 776D, 777, 777B, 777C, 777D, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793C, 793D, 797, 797B
Caterpillar Large Mining Shovels / Wheel Loaders / Dozers: 5130B, 5230B, 854G, 992G, 994D, 994F
Replaces Part Number(s):
1003877, 100-3877
New aftermarket replacement part - not remanufactured, not used.
