Common GMC Sierra 1500 Replacement Parts, 2014-2018

The Sierra 1500 K2XX ran from 2014-2018 and is the generation before the carbon fiber bed and Multi-Pro tailgate. After enough of these come across the parts counter you start to see the same short list of components over and over. Here is what owners of this generation actually end up buying, and what to know before you order.

Filters and Fluids

The usual tell is a slight hesitation on hard acceleration with a dirty air filter. How the vehicle gets used moves this interval more than the odometer does.

Common parts in this group: oil filters, air filters, cabin air filters, fuel filters, transmission filters.

Worth knowing: GM oil filters are built to a specific bypass pressure and anti-drainback valve spec, which matters most on cold starts.

Ignition and Engine Management

The usual tell is a misfire code that follows the coil when you swap it to another cylinder. How the vehicle gets used moves this interval more than the odometer does.

Common parts in this group: spark plugs, ignition coils, camshaft position sensors, crankshaft position sensors, oxygen sensors.

Worth knowing: Plug gap, heat range and electrode material are specified per engine, and GM’s Active Fuel Management and Dynamic Fuel Management engines are sensitive to it.

Electrical and Charging

The usual tell is power windows or seats getting slower over a season. Owners who do mostly short trips see this sooner than the mileage suggests.

Common parts in this group: batteries, battery cables, alternators, starters, body control modules.

Worth knowing: Many recent GM vehicles need the new battery registered to the module or the charging system will keep undercharging it.

Body and Exterior

The usual tell is a mirror that shakes at highway speed after a folding motor fails. Owners who do mostly short trips see this sooner than the mileage suggests.

Common parts in this group: mirrors, door handles, grilles, bumper covers, headlamps.

Worth knowing: Body panels and lamps have to match the vehicle’s specific mounting points and, on lamps, the exact photometric pattern that was certified.

Glass and Wipers

The usual tell is a washer pump you can hear running with nothing coming out. How the vehicle gets used moves this interval more than the odometer does.

Common parts in this group: wiper blades, wiper transmissions, wiper motors, washer pumps, rain sensors.

Worth knowing: Vehicles with rain sensing or heated wiper park use different assemblies.

Suspension

The usual tell is a ride height that sits lower on one corner. This is one of the items where a towing or work truck and a commuter diverge sharply.

Common parts in this group: shocks, struts, control arms, ball joints, sway bar links.

Worth knowing: Ball joint and control arm geometry sets your alignment range, and an out-of-spec part can make a correct alignment impossible.

Before You Order

Have the VIN ready. On a Sierra 1500 the same model year can carry two or three different engines and several suspension packages.
Check the SPID label in the glove box or console for your RPO codes.
Front and rear parts are rarely the same number, even when they look identical.
If the part is electrical, confirm the fit before you order. Electrical parts are not returnable at any GM dealer, including us.

Shops and fleets can set up wholesale pricing at gmpartsclub.com/wholesale. Everyone else can start at our GMC OEM parts catalog or search for Sierra 1500 parts.