BUY NOW, PAY LATER. Starting at 0% APR learn more ×

Free Shipping on all orders above $299.99*

About Blog FAQs Need Help?
Wish Lists
0 My Cart

Your cart is currently empty.

Continue shopping
Total: $0.00
View cart
Toggle menu
0
-23%
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Click to zoom in
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Load image into Gallery viewer, Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump

Have Questions?

+1 707-394-8246 Ask an Experts

  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Added Value

    Mounting, Balancing

  • Wordwide Delivery

    Free shipping on all orders above $299 with in US*

Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump

Sinister Diesel
SINSD-WWP-01
In stock
Water Pumps
$345.79 $265.99
Proper heat management from the cooling system is crucial on modified engines when you want trouble-free...
Size Guide
$265.99
Sinister Diesel 99.5-03 Ford 7.3L Powerstroke Cold Air Intake
Sinister Diesel 99.5-03 Ford 7.3L Powerstroke Cold Air Intake
$389.99 $269.99
Sinister Diesel 03-07 Ford 6.0L Powerstroke Hot Side Charge Pipe
Sinister Diesel 03-07 Ford 6.0L Powerstroke Hot Side Charge Pipe
$345.79 $265.99
Sinister Diesel 01-05 GM Duramax 6.6L LB7/LLY Welded Water Pump
Description
Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Duramax water pump is known to slip under load and can serious problems and serious repair bills on modified high-horsepower applications. This updated design is a drop-in replacement for the factory water pump and uses precision TIG welds to secure both the impeller and pump gear to the shaft.If your 2001-2005 Duramax powered truck is running a tuner, a bigger turbo, or bigger injectors, or if it's just time for routine maintenance, get peace of mind with the Sinister Diesel Welded Duramax Water Pump., Includes:Sinister Diesel "Welded" Water Pump, O-Ring, Thermostat Gasket.

This Part Fits:

Year Make Model Submodel
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2005 Chevrolet Silverado 2500 HD LS
2001-2005 Chevrolet Silverado 2500 HD LT
2004-2005 Chevrolet Silverado 2500 HD WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2005 Chevrolet Silverado 3500 LS
2001-2005 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2002-2005 GMC Sierra 2500 HD Base
2001-2002 GMC Sierra 2500 HD SL
2001-2005 GMC Sierra 2500 HD SLE
2001-2005 GMC Sierra 2500 HD SLT
2003-2005 GMC Sierra 2500 HD WT
2002-2005 GMC Sierra 3500 Base
2001-2002 GMC Sierra 3500 SL
2001-2005 GMC Sierra 3500 SLE
2001-2005 GMC Sierra 3500 SLT
2004-2005 GMC Sierra 3500 WT
Read More
Read Less

At RaceWerks, we strive to ensure your purchase arrives intact and on time. However, please note that shipping times may vary based on location and the carrier's policies.

Returns Policy

Racewerks is committed to customer satisfaction and will happily accept returns or exchanges on any brand new merchandise, including its packaging, within 30 days of the original purchase date. Please note, a restocking fee of 20% or more is deducted from the price of the returned merchandise, and shipping costs and sales tax on the restocking fee are not refundable.

Shipping

Once your goods have been dispatched, we cannot cancel the order. However, you can request a return once you receive the order. Racewerks is not liable for packages that are lost or stolen once the carrier confirms delivery.

If your tracking information shows that your package was delivered but you haven't received it, you must notify us within 48 hours. We will file a claim to locate your package, but we do not guarantee refunds or reshipments if the package is not recovered.

Cancellation

Once you complete your order, it cannot be cancelled or altered unless the item is out of stock. Our warehouses strive to process orders swiftly, sometimes even outside of customer service hours. Therefore, a cancellation fee of up to 5% may be applicable.

Please note that merchandise categorized as Special Order and Built to Order are final sales and cannot be cancelled, returned, or exchanged.

Below FAQ are some common Questions answered.

Our business operates from 6:00am to 6:00pm CST, Monday through Friday.

At Racewerks, we currently don't provide the option for in-person pick-up. All orders are delivered directly to your specified address.

We accept a variety of payment methods including Visa, MasterCard, American Express, Discover, PayPal.

Yes, we do. Please refer to our Return Policies page for detailed information.Returns Policy

At Racewerks, we won't allow shipping to alternate shipping address

Don't worry, just click the 'Forgot Password?' link on any login screen and follow the steps to reset your password.

Our team is always ready to assist! If you have any queries, just send us an email and we'll get back to you.

We collect sales tax for items shipped to a range of states. For the complete list of states, please refer to our 'Collecting Taxes' section.

We use cookies to improve your experience on our website. Read about how we use cookies in our Privacy Policy. By browsing this website, you agree to our use of cookies. privacy policy
accept

Your cart

×