High Pressure Fuel Line, Rail to Rail Pipe, Duramax | 2011 - 2016

High Pressure Fuel Line, Rail to Rail, Duramax | 2011-2016

This is the genuine GM high-pressure fuel pipe, GM part number 12670466, that connects the left and right high-pressure fuel rails on the 6.6L Duramax LML trucks and LGH vans. It carries fuel at full rail pressure between the two banks, so a cracked, kinked or leaking pipe affects fuel delivery to the engine. The pipe is pre-bent to the factory routing.

Key Features

• Genuine GM part number 12670466 (GM name: Pipe Asm, Fuel High Pressure)
• Replaces earlier GM numbers 12642842 and 12634550
• Rail-to-rail crossover between the left and right fuel rails
• Pre-bent to factory routing
• 1-year warranty

Benefits

An OE pipe matches the factory bends and end fittings, so it lines up with both rails without forcing it into place. A high-pressure line that is bent or stressed during installation is more likely to leak at the fittings. Using the current GM number also means you get the latest revision, which supersedes the earlier 12642842 and 12634550 pipes.

Fitment

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD and 3500 with the 6.6L Duramax LML, and late 2010-2016 Chevrolet Express and GMC Savana 2500 and 3500 vans with the 6.6L Duramax LGH.

What's Included

• (1) GM 12670466 high-pressure fuel pipe, rail to rail