Water Pump Kit - Fits Mercruiser 110-898 Series Marine Engines (Replaces 46-44292A5, 46-96148A8)

Water Pump Kit - Fits Mercruiser 110-898 Series Marine Engines (Replaces 46-44292A5, 46-96148A8)

This complete water pump repair kit is designed for Mercruiser stern drives, providing reliable performance for models including the 110, 120, 140, 150, 165, 175, 200, 225, 228, 260, 470, 485, 898, and V series engines manufactured between 1970 and 1991. Refer to the compatibility table for specific model years and serial numbers.

This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring a precise fit and straightforward installation. It is an essential component for maintaining your engine's cooling system and preventing overheating.

• Installation: Designed for direct OEM replacement.
• Compatibility: Fits Mercruiser R/MR/Alpha One sterndrives (1983-1991) and earlier models with serial numbers 2791957-6225576.
• Key Feature: Includes the necessary preload pin on the vertical drive shaft required for MC-1/R models.

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.

Technical Specifications

Package Contents

This complete kit includes all necessary components to rebuild your water pump:

• 1 × Complete Water Pump Repair Kit (Replaces 46-96148A8)

Installation Guide

Professional installation is recommended. The general steps for replacing the water pump kit are as follows:

1. Safety First: Disconnect the boat's battery before starting any work.
2. Drain Fluids: Drain the gear lube from the sterndrive unit completely.
3. Disassemble Drive: Remove the propeller, then unbolt and separate the lower unit from the upper unit.
4. Remove Old Pump: Locate and unbolt the existing water pump housing. Carefully remove the old impeller, wear plate, gaskets, and seals.
5. Clean Surfaces: Thoroughly clean all mating surfaces to ensure a proper seal. Remove any old gasket material or corrosion.
6. Install New Components: Install the new wear plate, gaskets, and impeller from the kit. Lightly lubricate the impeller with soap or grease before installation.
7. Assemble New Pump: Secure the new pump housing, ensuring all bolts are tightened to the manufacturer's specified torque.
8. Reassemble Drive: Rejoin the lower and upper units of the sterndrive.
9. Refill & Test: Refill the drive with the correct type and amount of gear lube. Re-install the propeller.
10. Final Check: Once the boat is in the water, start the engine and verify that water is properly circulating and exiting the tell-tale port.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my engine?

A: This kit is designed for a wide range of Mercruiser models from 1970–1991. Start by checking your engine model and year against the "Compatible Engine Models" table. Next, cross-reference your existing part number with our "Part Number Cross-Reference" list. For some applications, the fit is determined by a serial number range (2791957-6225576), so check your engine's serial number plate.

Q: What are the signs of a failing water pump?

A: The most common sign is an engine that is overheating or running hotter than normal. You may also notice a weak or non-existent stream of water from the engine's "tell-tale" outlet. A damaged impeller can also cause a rattling noise from the lower unit.

Q: How often should the water pump impeller be replaced?

A: As a critical maintenance item, most manufacturers recommend replacing the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. Regular replacement is key to preventing unexpected engine overheating.

Q: OEM vs. Aftermarket?

A: 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.

Q: How fast do you ship and how much does it cost?

A: 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.

Q: What is your warranty and return policy?

A: 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.