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XDP Xtreme Diesel Performance

XDP XTRA Cool Water Pump Housing (Housing Only) | 2001-2005 GM 6.6L Duramax & 2003-2005 GM Kodiak/Topkick

SKU: XD684
$61.95

Fits 2001–2005 Chevy/GMC Silverado/Sierra, 2003–2005 Chevy/GMC Kodiak/Topkick · 6.6L Duramax LB7/LLY

All 2 applications
In stock. Ships in 1–2 business days.
9150 Entries150X
This purchase enters you to win FSD26, a 2024 F-350 Limited and $20,000 cash. See the truck
  • Authorized dealerGenuine XDP Xtreme Diesel Performance parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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The XDP X-TRA Cool Water Pump Housing (Housing Only) XD684 will replace the damaged housing on your GM 6.6 Duramax LB7/LLY. Over time these housings are known to erode or leak due to cavitation or corrosion from the cooling system. This housing is a direct-fit replacement that meets the factory specifications and is sold as just the housing without the water pump.
Features:

  • Includes New Seals
  • Direct-Fit Replacement
  • Meets Factory Specifications
  • 2 Year/Unlimited Mileage

Notes:

  • The harmonic 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.

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If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.