GM Injector Line, Cylinder 3 or 6, Duramax LML | 2011 - 2016

The genuine GM 12670469 injector line is the high-pressure steel line that carries fuel from the fuel rail to the injector for cylinder 3 or cylinder 6 on the 6.6L LML and LGH Duramax. It fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks and 2011-2016 Chevrolet Express and GMC Savana vans. Injector lines seal metal-to-metal at extremely high rail pressure, and their seats deform once they are torqued. Any line that has been removed should be replaced rather than reused. A leaking or damaged line causes misfires, a fuel smell, low rail pressure codes and fuel in the valley. The line is sold individually, so order two to cover both cylinder 3 and cylinder 6.

Key Features

• Genuine GM part number 12670469
• Fits cylinder 3 or cylinder 6
• Factory bends, length and sealing ends
• Rated for full LML common-rail pressure
• Sold individually, 2 needed for both cylinders

Benefits

A new factory line gives a fresh metal-to-metal seal at the rail and the injector, which stops leaks and restores full injection pressure. The other LML lines are the Cylinder 1 or 8 Injector Line, the Cylinder 2 or 7 Injector Line and the Cylinder 4 or 5 Injector Line. To replace all eight at once, see our Merchant Automotive Fuel Injector Line Kit.

Fitment

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L LML Duramax diesel, and 2011-2016 Chevrolet Express and GMC Savana vans with the 6.6L LGH Duramax. Position: cylinder 3 or cylinder 6.

What's Included

• (1) GM high-pressure injector line, cylinder 3 or 6, 12670469