3K6879 Cup for Caterpillar Wheel-Type Loaders

The 3K6879 cup is a component used in actuator assemblies on Caterpillar wheel-type loaders. It is fitted to Caterpillar equipment models 950, 966C, 966R, and 988. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a cup for the actuator assembly and is supplied under the part number 3K6879. The available application data identifies the compatible equipment as Caterpillar wheel-type loaders.

Fitment

• Equipment brand: Caterpillar
• Equipment type: wheel-type loader
• Model: 950
• Model: 966C
• Model: 966R
• Model: 988

The listed models are the Caterpillar machine applications associated with part number 3K6879. The part name in the application data is CUP-CYL A, indicating use as a cup within the relevant actuator or cylinder assembly.

Cross-reference numbers

• 3K6879
• 3K-6879
• CA3K6879
• Caterpillar 3K6879 CUP

These designations refer to the same cup part number or its catalog identification. The hyphenated form 3K-6879 and the unhyphenated form 3K6879 are included in the supplied cross-reference data.

Specifications