Water Pump Impeller – Fits Mercury/Mariner/Force 30-60 HP (Replaces 47-19453T, 47-19453)

Water Pump Impeller – Fits Mercury/Mariner/Force 30-60 HP (Replaces 47-19453T, 47-19453)

This water pump impeller is designed for a wide range of Mercury, Mariner, and Force 30–60 HP outboards, covering various 2-stroke and 4-stroke models manufactured between 1991 and 2019. It ensures reliable engine cooling performance by maintaining proper water circulation.

This component serves as a direct replacement for multiple OEM and aftermarket part numbers, facilitating straightforward maintenance and repairs.

• Material: Constructed from a durable, marine-grade elastomer for longevity and resistance to wear.
• Direct Fit: Engineered to match OEM specifications for easy installation without modifications.
• Package Includes: One high-performance water pump impeller.

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. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Mercury/Mariner

Force/Chrysler/US Marine

Volvo Penta

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (Replaces OEM Part #47-19453T, 47-19453)

Installation Guide

Follow these general steps to replace your water pump impeller. It is always recommended to consult your engine's service manual for detailed instructions specific to your model.

1. Disconnect Power: Disconnect the battery before beginning any work.
2. Access Lower Unit: Remove the bolts that secure the gearcase (lower unit) to the outboard's leg.
3. Separate Lower Unit: Carefully lower the gearcase away from the engine. You may need to disconnect a shift shaft linkage.
4. Open Water Pump Housing: Unscrew the bolts on top of the water pump housing and lift it off to expose the impeller.
5. Remove Old Impeller: Take note of the original orientation of the impeller vanes. Remove the old impeller and the woodruff key from the driveshaft.
6. Clean and Inspect: Clean the inside of the housing and the wear plate. Inspect them for scoring, cracks, or heat damage. Replace if necessary.
7. Install New Impeller: Insert the woodruff key into the shaft. Slide the new impeller onto the shaft while turning the driveshaft clockwise to bend the vanes into the correct position within the housing.
8. Reassemble Housing: Place the housing back over the impeller and tighten the bolts to the specified torque.
9. Reattach Lower Unit: Guide the lower unit back into position, ensuring the driveshaft, water tube, and shift shaft align correctly.
10. Secure and Test: Reinstall and tighten the gearcase bolts. Reconnect the battery, supply water to the engine using flushing muffs, and start it to check for a strong, steady stream from the tell-tale outlet.

Troubleshooting & FAQ

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

A: Start by checking the tables above for your engine's brand, model, horsepower, and year range. For Mercury/Mariner owners, we highly recommend using the linked serial number guide to verify your exact model, as specifications can vary even within the same year.

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

A: The most common indicators include a weak or non-existent water stream from the engine's "tell-tale" outlet, an engine temperature alarm, or the engine overheating, especially at idle or low speeds. Upon inspection, a bad impeller may have cracked, brittle, or missing vanes.

Q: How often should I replace my engine's impeller?

A: As a preventative maintenance measure, we recommend inspecting your impeller annually and replacing it every 1-2 seasons (or every 100-200 hours of use), whichever comes first. This interval can be shorter if you operate in sandy, silty, or saltwater conditions.

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.