OEM Gen V LT4 High Pressure Fuel Pump

OEM GM LT4 High Pressure Fuel Pump #12711668

The OEM GM LT4 High Pressure Fuel Pump is the factory direct-injection pump used on supercharged LT4 applications, including the Camaro ZL1, C7 Z06, and CTS-V. It is a great choice for anyone needing a genuine OEM replacement, while also serving as a proven upgrade for LT1 owners looking to support additional fuel demand from camshaft, boost, ethanol, or higher horsepower combinations.

Unlike cheap aftermarket replacements, or questionable “knock off pumps” this is a genuine GM component designed, engineered, and tested to OEM standards. For LT4 owners, it keeps the fuel system simple, reliable, and factory-correct. For LT1 owners, the LT4 HPFP is one of the most common high-side fuel system upgrades because it offers increased fuel capacity while retaining OEM drivability and durability.

Key Benefits

• Genuine GM / Chevrolet Performance LT4 HPFP

• Direct OEM replacement for LT4 applications

• Popular high-side fuel upgrade for Gen V LT1 engines

• Supports higher fuel demand from cam, boost, and ethanol setups

• Helps maintain high-pressure DI fuel supply under load

• Cross-references older GM pump numbers including 12688607 and 12694529

Fitment Notes: Fits many Gen. V LT-based direct-injected V8 applications. Later 2019+ Camaro and Corvette applications may require an HPFP conversion harness due to connector changes.

GMS Notes: For basic bolt-on LT1 cars, this pump is often more than enough. For larger cam, port injection, high ethanol, or serious power goals, we may recommend stepping up to the new RGX-style HPFP pump depending on the build.