BD Diesel FUEL RAIL PLUG (1050071) for 2004.5-2010 Duramax 6.6L LBY / LBZ / LMM & 2007.5-2018 Cummins 6.7L

$44.95Purchase & earn 44 points!

The BD Diesel Fuel Rail Plug (1050071) is an aftermarket upgrade for 2004.5–2010 GM Duramax 6.6L (LLY, LBZ, LMM) and 2007.5–2018 Dodge Ram 6.7L Cummins engines. It replaces the factory pressure relief valve to prevent fuel pressure drops under load, improving throttle response, performance, and horsepower support. This cost-effective mod enhances reliability and is popular among diesel performance enthusiasts.

7 People watching this product now!
Description

The BD Diesel Fuel Rail Plug (1050071) is a high-performance upgrade designed for 2004.5-2010 GM Duramax 6.6L engines, including the LLY, LBZ, and LMM models, as well as 2007.5-2018 Dodge Ram trucks equipped with the 6.7L Cummins engine. This fuel rail plug replaces the factory pressure relief valve (PRV) to eliminate potential fuel pressure drops caused by the stock PRV opening under high-demand conditions. By maintaining consistent fuel rail pressure, the BD Diesel plug helps improve throttle response, boost performance, and support higher horsepower applications. It’s a popular and cost-effective modification for diesel enthusiasts looking to enhance reliability and performance in their Duramax or Cummins-powered trucks.

Additional information
Weight 0.5 lbs
Dimensions 4.1 × 3.1 × 1.4 in
Fitment

Fitment

2004.5-2010 Duramax 6.6L LBY / LBZ / LMM

2007.5-2018 Cummins 6.7L

Features

Features

  • 50-STATE LEGAL!
  • Replace failing pressure relief valves
  • Seals in 30,000 psi rail pressure
  • Improves engine starting
  • Easily replaces the stock relief valve
  • A must for high performance engines
Installation

Installation

INSTALL TIME

  • 1 Hour

WARRANTY

Parts

  • 12-Months
  • 12,000 Miles
Warning

Warning

  • CARB EO No. D-553-20 – Covers 2004-2010 GM 6.6L Silverado/Sierra 2500/3500 diesel pickup trucks
  • CARB EO No. D-553-21 – Covers 2007-2012 Dodge/Ram 2500/3500 6.7L diesel pickup trucks
  • Removing the fuel pressure relief valve can cause damage to the fuel system.
  • SEMA Certification No. SC-BDD01-0083
About brand
BD Diesel Performance is a diesel performance manufacturer focused on reliability and towing performance. The company designs parts that improve durability, power delivery, and vehicle control. BD Diesel products support daily driving, heavy towing, and work-ready diesel trucks. BD Diesel engineers turbochargers, exhaust brakes, transmission upgrades, and fuel system components. Their products help manage heat, control exhaust flow, and protect drivetrain parts. These upgrades improve drivability under load and during long pulls. Diesel owners trust BD Diesel for proven solutions. Whether upgrading a tow rig or improving reliability, BD Diesel delivers parts built for real-world use.
Shipping & Delivery