2017–2019 L5P Duramax Throttle Valve Upgrade

2017–2019 L5P | L5D Duramax Throttle Valve Upgrade

Eliminate Weak Links. Maximize Boost.
Designed for 2017–2019 L5P and L5D Duramax engines, this upgraded throttle valve replaces one of the most failure-prone components in the factory system. The OEM throttle valve assembly uses a plastic ring seal that often leaks under high boost and high temperature. This precision-machined aluminum replacement solves that issue permanently with improved sealing, strength, and reliability.

Key Features

• High-Strength Aluminum Construction: Built from durable cast aluminum, available in Raw or Anodized Midnight Black finishes for maximum heat and pressure resistance.

• Leak-Proof Seal: Utilizes a one-piece, high-temperature O-ring seated in a machined groove — eliminating the factory plastic ring and ensuring a tight, boost-holding seal.

• Barbed Outlet Design: Provides superior grip for your aftermarket cold-side intercooler boot, preventing blow-off under heavy boost or heat.

• Improved Fitment: Extended ½” longer than stock for better clearance and easier installation.

• Integrated 1/8″ NPT Ports: Includes three ports for boost gauges, water/methanol injection, nitrous, or boost-leak testing.

• Quick Installation: Direct replacement design installs in under 30 minutes with standard tools.

This Upgrade requires Aftermarket Intercooler Boot Connections: The pipes can be found here