📱 Call Us

FSD26 IS LIVE: Every $1 spent = 150 entries to win a 2024 F-350 Limited + $20,000 cash.

XDP Xtreme Diesel Performance

XDP Duramax 6.6L LGH Fuel Contamination Kit 11-16 GM 6.6L Duramax LGH XD518

SKU: XD518
$5,288.95

Fits 2011–2016 Chevy/GMC Duramax · 6.6L Duramax LGH

Fitment
In stock. Ships in 1–2 business days.
793200 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
  • Secure checkoutAmerican Express Apple Pay Diners ClubDiscoverGoogle Pay Mastercard PayPal

The XDP Duramax 6.6L LGH Fuel Contamination Kit XD518 includes the items you need to repair the fuel system in your 2011-2016 GM Duramax 6.6L LGH after a CP4 injection pump failure.

The factory CP4 pump is a known weak point and often fails in a catastrophic nature. As a result, debris from the CP4 failure typically contaminates the fuel injectors, fuel injector lines, fuel rails, and other fuel system plumbing.To repair the failed pump and eliminate the risk of contaminating the replacement parts, the previously mentioned components must then be replaced.

The XD518 kit includes remanufactured fuel injectors, a remanufactured CP4 pump, fuel injector lines, engine fuel feed pipe, fuel return line, fuel rails, and injector hold down bolts.

Each kit is designed to meet or exceed the OE specifications and comes backed by the XDP 1-year warranty. Get the XDP LGH Fuel Contamination Kit to get your Duramax back up and running after a CP4 failure.

Features:

  • (2) Fuel Rails
  • (8) Injector Lines
  • (1) Fuel Feed Line
  • (1) Fuel Return Line
  • (8) Hold Down Bolts
  • (8) Remanufactured Injectors
  • (1) Pump Installation Kit With Fuel Line
  • (1) Remanufactured CP4 Injection Pump

Same brand

More from XDP Xtreme Diesel Performance

Shop all 337 XDP Xtreme Diesel Performance parts

From the FSD shop

Shop picks for your Chevy/GMC

Everything for Chevy/GMC

Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

The shop floor
The shop floor
In-house fabrication
In-house fabrication
Engine work
Engine work

Authorized dealer for 140+ brands

All brands
  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
  • 25+ Trucks given away

Reviews

What customers say

Verified reviews collected by Loox from real orders.

Good to know

Questions, answered straight.

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.

FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

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.