Water Pump Pulley – Fits MerCruiser/Volvo Penta V6 & V8 Engines (Replaces 8M0153706, 807729T)

Water Pump Pulley – Fits MerCruiser/Volvo Penta V6 & V8 Engines (Replaces 8M0153706, 807729T)

This water pump pulley is engineered for a wide range of MerCruiser and Volvo Penta sterndrive engines. It is designed for MerCruiser 4.3L to 8.2L V6 and V8 engines from 1996–2014 that are equipped with a serpentine belt system. It also fits various Volvo Penta V6 and V8 models that use the corresponding OEM cross-reference numbers.

This component is a direct replacement for Mercury/MerCruiser part numbers 8M0153706, 807729T, and 8M0192199, as well as Volvo Penta part numbers 807729 and 807729T.

• Installation Method: Compatible with serpentine belt systems only.
• Material: Constructed from durable metal for long-lasting performance.
• Application: Suitable for standard engine cooling systems.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

MerCruiser

Volvo Penta

Technical Specifications

Package Contents

• 1 x Water Pump Pulley (Replaces 8M0153706 / 807729T / 8M0192199)

Installation Guide

1. Safety First: Disconnect the negative battery terminal to prevent accidental starts.
2. Relieve Belt Tension: Use an appropriate tool to release the tension on the serpentine belt tensioner and slide the belt off the water pump pulley.
3. Remove Old Pulley: Unbolt and remove the existing water pump pulley. Note the orientation of the bolts if they are different lengths.
4. Clean Surface: Thoroughly clean the mounting hub on the water pump to ensure a flush, secure fit.
5. Install New Pulley: Position the new pulley onto the water pump hub, ensuring it is properly aligned with the bolt holes.
6. Secure Pulley: Hand-tighten the bolts first, then tighten them in a star pattern to the manufacturer's recommended torque specification. Do not overtighten.
7. Reinstall Belt: Route the serpentine belt according to your engine's diagram, then re-apply tension using the tensioner.
8. Final Check: Reconnect the battery. Start the engine and visually inspect the pulley for any wobble or misalignment and listen for unusual noises.

Troubleshooting & FAQ

How do I know if this pulley fits my MerCruiser V6 engine?
This pulley is designed for MerCruiser 4.3L to 8.2L V6 and V8 engines made between 1996 and 2014 that use a serpentine belt. The best way to confirm is to check the part number on your old pulley and compare it to the cross-reference list (e.g., 8M0153706, 807729T). Also, verify your engine model in our compatibility table.

Will this pulley work with a V-belt system?
No. This pulley is specifically engineered for modern serpentine belt systems due to its groove design and diameter. It is not compatible with older V-belt setups.

What are the signs that my water pump pulley needs replacement?
Common signs of a failing pulley include a noticeable wobble while the engine is running, a persistent squealing or grinding noise from the front of the engine, or visible damage like cracks, chips, or warping on the pulley itself.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.