Water Pump Kit – Fits OMC Cobra 2.3L, 2.5L, 3.0L (1986-1993) (Replaces 984461, 983895, 984744)

Water Pump Kit – Fits OMC Cobra 2.3L, 2.5L, 3.0L (1986-1993)

This water pump repair kit is designed for OMC Cobra sterndrive engines, including 2.3L (1987-1990), 2.5L (1986-1993), and 3.0L (1986-1993) models. It provides a reliable solution for maintaining your engine's cooling system.

This kit serves as a direct replacement for OMC part numbers 984461, 983895, and 984744, as well as several other aftermarket equivalents.

• Complete Kit: Includes a new housing, impeller, wear plate, gasket, seal, and liner for a full replacement.
• Durable Construction: Built with a robust ABS and stainless steel housing designed for corrosion resistance in salt water environments.
• Direct Fit: Engineered for external mounting on the sterndrive with a direct bolt-on connection, ensuring a precise fit.

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 kit includes the following components for a complete water pump assembly overhaul:

• 1 x Housing (Replaces 984744)
• 1 x Impeller (Replaces 777128)
• 1 x Liner/Cup (Replaces 764197)
• 1 x Wear Plate (Replaces 911703)
• 1 x Seal (Replaces 911704)
• 1 x Gasket (Replaces 911702)

Installation Guide

1. Safety First: Disconnect the battery and ensure the engine is cool.
2. Access the Pump: Locate the water pump on the sterndrive unit. Depending on the model, you may need to tilt the drive up.
3. Remove Old Housing: Unscrew the bolts securing the water pump housing and carefully remove it. Note the orientation of the inlet/outlet hoses.
4. Inspect and Remove Old Components: Remove the old impeller, gasket, wear plate, and seal. Clean the mounting surfaces thoroughly.
5. Install New Components: Place the new gasket and wear plate. Insert the new impeller into the housing, rotating the fins in the correct direction (typically clockwise).
6. Install New Housing: Position the new housing assembly and tighten the mounting bolts evenly to the manufacturer's specified torque.
7. Reconnect Hoses: Securely attach the water hoses to the new housing.
8. Final Checks: Reconnect the battery. Start the engine and check for leaks and proper water flow from the tell-tale outlet.

Troubleshooting & FAQ

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

A: The best way to ensure fitment is to match your engine's model and year to the "Compatible Engine Models" table above. You can also verify by cross-referencing your existing part number with those listed in the "Part Number Cross-Reference" table.

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

A: Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the tell-tale outlet, and visible cracks or damage to the impeller vanes upon inspection.

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

A: As a general maintenance guideline, we recommend inspecting the impeller annually and replacing it every 1-2 years, or after every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater).

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.