1786539 Body As Fits Caterpillar Models

One New Aftermarket Replacement Oil Pump (Gear Housing Body Assembly) for Caterpillar Excavators

This aftermarket replacement oil pump -- catalog designation "Body As" (178-6539) -- fits the Caterpillar 3066 (S6KT) diesel engine. The oil pump circulates engine oil under pressure to critical engine components, maintaining lubrication and protecting against wear during heavy-duty excavator operation. Replaces OEM part number 178-6539 / 1786539.

Specifications

• Part Type: Gear Housing Oil Pump (Body Assembly)
• Engine: Caterpillar 3066 / S6KT
• Condition: New aftermarket

Compatible Models

Caterpillar (Cat) Excavators -- 3066 Engine:

• 318C Excavator -- BTG00001-UP powered by 3066 Engine
• 318C L and 318C LN Excavator -- GPA00001-UP powered by 3066 Engine
• 319C LN Hydraulic Excavator -- KGL00001-UP powered by 3066 Engine
• 320C and 320C L Excavator -- AMC00001-UP powered by 3066 Engine
• 320C and 320C L Excavator -- BDC00001-UP powered by 3066 Engine
• 320C and 320C L Excavator -- BPR00001-UP powered by 3066 Engine
• 320C Excavator -- HBC00001-UP powered by 3066 Engine
• 320C FM Forest Swing Machine -- BGB00001-UP powered by 3066 Engine
• 320C U and 320C LU Excavator -- CLM00001-UP powered by 3066 Engine
• 320B and 320B L Excavator -- 3066 / S6KT Engine
• E320B and E320BL Excavator -- 3066 / S6KT Engine
• E320C Excavator -- 3066 / S6KT Engine
• E312D Excavator -- verify via serial number / parts manual

Replaces Part Number(s):

178-6539, 1786539

Aftermarket Interchange Numbers

34335-23010, 3433523010, CA1786539, 5I-7859, 5I7859

New aftermarket replacement part - not remanufactured, not used.