Mercury NEW OEM Water Pump Impeller 47-39487 20HP 200 Outboard NOS 0810

Mercury OEM Water Pump Impeller — Part Number 47-39487
Brand: Mercury | Condition: New Old Stock (NOS)

You are purchasing a genuine Mercury OEM Water Pump Impeller, part number 47-39487. This impeller is a critical component of the outboard's cooling system, circulating water through the engine to prevent overheating. This part is no longer available new from Mercury — this NOS unit represents a rare opportunity to source a factory original replacement. This is an authentic factory original part — never installed, never used.

Condition Details: This is a New Old Stock (NOS) part. The impeller itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes on the bag or box. The part is new and fully functional.

Part Number / Supersede Information:

• Primary OEM Part Number: 47-39487
• Also referenced as: 39487
• Sierra Aftermarket Cross-References: 18-3040, 18-3052
• ⚠ Note: This part is NLA (no longer available) from Mercury Marine. This NOS unit may be the last available factory original replacement.

Installation Note: This impeller features the early-style square keyway. On Mercury 200/20HP motors with serial numbers later than 2827676, the keyway slot may require minor dressing with a file to accommodate the later round key configuration.

Compatible Equipment:

• Mercury 20HP (Model 200) outboard motors — water pump assembly

Why Choose OEM Parts? OEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Unlike aftermarket alternatives, OEM parts are designed specifically for your equipment — no modifications, no guesswork.

Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.

Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience.

Please verify fitment using your engine's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!

QBS Parts, Inc. — Gardena, CA