Caterpillar 7C3912 7" Auxiliary Water Pump Pulley
This listing is for a 7-inch, single-groove auxiliary water pump pulley, sold by CLR Marine for select Caterpillar 3208 marine engines equipped with a Sherwood P171 or P176 auxiliary raw-water pump.
Compare it against your original part number or send us a picture of your pump plate to confirm you're ordering the correct component.
Key Features
- Genuine Caterpillar part fit and finish
- Machined to original pulley dimensions for correct belt alignment and speed
- Direct fit replacement — no modification required
Applications
- Select Caterpillar 3208 marine engines equipped with a Sherwood P171 or P176 auxiliary raw-water pump
Specifications
- Diameter: 7.00 in (1 groove)
- Bore: 1 in, tapered
Frequently Asked Questions
Q: Can this part be used on non-marine Caterpillar equipment?
Many Caterpillar parts are shared across marine, generator set, and industrial engine applications — check the Applications section above, and contact us if you need help confirming fitment for your specific equipment.
Q: Is this part sold individually?
Yes, this listing is for a single unit unless the title or specifications note otherwise.
Q: What should I check before ordering a replacement gasket, seal, or O-ring?
Compare the part number stamped on your original component, or send us a picture of the pump plate on your pump, and the CLR Marine team will confirm the correct part.
Q: Is this a genuine Caterpillar part?
Yes, this listing is for the genuine Caterpillar part number shown, not an aftermarket equivalent.
Not sure this is the right part? Send us a picture of the pump plate on your engine and the CLR Marine team will confirm the correct part.
CLRMarine
