Skip to content
Anchor for skip content
Page overlay

2008–2019 GMC Sierra — Brake Line Replacement Guide

This guide spans the GMC Sierra across two platform generations (GMT900 and K2XX), both of which corrode brake line along the frame and over the rear axle. It covers the complete copper-nickel circuit with the mixed SAE + metric fittings these trucks use — verify fittings, since they changed across the range.

Application-Specific Parts

Vehicle-Specific Buying Guides

Every hose, hard line, fitting, and fluid you need for a full brake system replacement — matched to your exact vehicle. Find yours below, or browse the guides.