Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Merchant Automotive 10543 Water Pump (With Housing)Replace the failing water pump in your 2006 2016 GM 6. 6L Duramax with the Merchant Automotive 10543 Water Pump Kit (With Housing). Water pumps are common wear items not only in diesel trucks, but in all vehicles. A failing water pump can cause catastrophic damage if not taken care of early. The water pump is responsible for keeping coolant flowing throughout your engine, keeping it cool. As your Chevy GMC gets older, the factory water pump can start
Replace the failing water pump in your 2006-2016 GM 6.6L Duramax with the Merchant Automotive 10543 Water Pump Kit (With Housing). Water pumps are common wear items not only in diesel trucks, but
in all vehicles. A failing water pump can cause catastrophic damage if
not taken care of early. The water pump is responsible for keeping
coolant flowing throughout your engine, keeping it cool. As your Chevy/GMC
gets older, the factory water pump can start to deteriorate due to old
age. If you do not have your coolant flushed at the recommended factory
intervals, you could see premature failure of your water pump. This
water pump kit with housing (or cover) is a great way to get your water
pump replaced with factory-like components.
This Water Pump Kit includes everything you need to replace the factory water pump on your Duramax equipped truck. This kit includes a brand new water pump with cover, water pump studs, flywheel lock, and all of the necessary seals and gaskets to complete the install. This comprehensive kit was designed specifically for completing a Duramax water pump job from start to finish.
This Water Pump Kit includes everything you need to replace the factory water pump on your Duramax equipped truck. This kit includes a brand new water pump with cover, water pump studs, flywheel lock, and all of the necessary seals and gaskets to complete the install. This comprehensive kit was designed specifically for completing a Duramax water pump job from start to finish.
Features:
- All In One Kit
- OEM Style Water Pump
- Restores Factory Like Function
- Includes Flywheel Lock, Gaskets, & O-Rings
Kit Includes:
Water Pump With Cover
Water Pump To Engine Cover Seal
Flywheel Lock
2 Water Pump Studs
Bypass Pipe Seal
Upper Bypass Pipe Seal
Water Pump Outlet Gasket
Water Pump To Engine Cover Seal
Flywheel Lock
2 Water Pump Studs
Bypass Pipe Seal
Upper Bypass Pipe Seal
Water Pump Outlet Gasket
Signs The Water Pump In Your Duramax Is Bad
There are a few tell-tell signs to indicate that you need to replace your water pump as soon as possible. Fortunately, most water pumps will show symptoms of failing before they completely fail. This may include a coolant leak from the weep hole, a small hole in the housing, designed to leak coolant in failure situations. You may also notice rust or deposit buildup on the internal impellor in more extreme cases. A loose pulley or a pump that is making whining noises can occur, but is less common. Lastly, if your truck is overheating, this can also be the culprit and you will want to check when diagnosing why your truck.
Note:
The harmonic balancer balancer bolt will need to be removed to replace your water pump.
The factory bolt is a torque-to-yield fastener (TTY) for one time use and must be replaced.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1761 reviews
Sort
Product Reviews
★★★★★ 5
Awesome for $37.00
Color: Blue Face/Silver Strap, Color: Blue Face/Silver Strap
Amazing quality at a low cost. I really enjoy this watch. Looks more expensive than it is. I love the look of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
★★★★★ 5
Buitfiful watch
Color: Blue Face/Silver Strap
Buitfiful watch with a good weight. The size adjuster only really works though if you unscrew it completely and just push the pins out with that. But other than that it's a buitfiful watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 4
Nice watch, But,…..
Color: Blue Face/Silver Strap
Watch is really nice but I’m having a problem adjusting the watch band to fit my wrist.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Totally worth it!
Color: Blue Face/Silver Strap
This looks better in person. I had purchased it for my husband as he was looking for a dress watch. This is perfect! The watch is beautiful and the packaging is beautifully done. I'm beyond happy with this product and plan to buy another one in a different color for my son. Definitely go for it and buy it. It's worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 3
Beautiful, but......
Color: White Face/Silver Strap
This watch is beautiful but.....!
I bought 6 OLEVS watches for my husband and this is the only one that im mad at. Out of 6, this is the only one that I had pins strip when I tried to remove links. Very unsatisfied with the pin quality on this specific watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025