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Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8

Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8

30 in stock
$171.00
$171.00
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Two (2) Mercruiser Circulating Water Pump Bi-Directional

2x Part# # US5060 REF# 18-684M

US Motor Works Marine Water Pump Fits:

NO. CYL. 8 MARINE-CHRIS CRAFT, CRUSADER, MERCRUISER, 305,307,327,350 CHEVY ENGS.
NO. CYL. 8 MARINE-OMC, OWENS, FLAGSHIP, VOLVO PENTA, 305,307,327,350 CHEVY ENGS


REF# OE
MerCruiser 60658, 17437, 850399, 8503991
OMC 985429, 3853850
Volvo Penta 835390-6, 856364-5, 3853850, 3851982-3


Small Block GM V6 & V8 Engines

This Water Pump Comes With Gaskets

Condition: New

  • Brand: Mac Auto Parts
  • Manufacturer Part Number: 166703
  • Type: Water Pump
  • Warranty: 10 Year
  • Custom Bundle: No
  • Bundle Description: 835390-6,856364-5, 3853850, 3851982-3
  • Modified Item: No
  • Interchange Part Number: US5060 18-684M 835390-6,856364-5, 3853850, 385198
Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8

$171.00

FAQ

Is this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 guaranteed to fit my vehicle?

Yes — every product listing includes a vehicle compatibility list. Use our Part Finder 3000™ to confirm fitment before you buy, or check the 'Fits These Vehicles' section on this product page.

Is this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 new or remanufactured?

The condition of this part (new or remanufactured) is clearly stated in the product title and description above. All remanufactured parts are rebuilt to OEM standards and fully tested before shipment.

Does this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 come with a warranty?

Yes. This Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 is backed by Medallion Auto Center's warranty program. For warranty terms, coverage period, and how to make a claim, please see our Warranty Page.

Does this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 ship for free?

Yes! We offer FREE shipping on this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 and all products to all 48 contiguous U.S. states. No minimum order required.

How long will it take to receive this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8?

This Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 typically ships within 1–2 business days. Delivery takes 3–7 business days depending on your location. You'll receive a tracking number by email as soon as your order is dispatched.

What is included with this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8?

All included components (gaskets, hardware, brackets, etc.) are listed in the product description above. If you have questions about what's in the box, contact us at service@macautoparts.net before ordering.

Can I return this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 if it doesn't fit or is the wrong part?

Yes. Returns are accepted on this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8. Please review our Returns Policy for the conditions, timeframe, and steps to start a return.

Is this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 an OEM part or an aftermarket part?

This is an aftermarket replacement part that meets or exceeds OEM specifications. It is designed to fit and function as a direct replacement for the original factory part on the vehicles listed.

Can I get help confirming this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8 is right for my car?

Yes. Our team is happy to help verify fitment or answer technical questions. Email us at service@macautoparts.net or call 1-800-209-9598 (Mon–Fri, 9AM–4PM EST). You can also visit our Technical & Automotive Questions page.

Are there any current discounts or coupon codes I can use on this Mercruiser Circulating Water Pump Bi-Directional 8503991 GM Small Block V6 V8?

Yes! Check the promotional banner at the top of the website for the latest coupon code — we frequently offer up to 10% off storewide. Sign up for our newsletter to be the first to receive exclusive deals.
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