Common Chevrolet Silverado 2500HD Replacement Parts, 2015-2019

The Silverado 2500HD K2XX ran from 2015-2019 and is L5P Duramax arrives in 2017. 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.

Heating and Air Conditioning

The usual tell is vents that will not switch from defrost to floor. Mileage is a rough guide here. Load, heat and road surface matter more.

Common parts in this group: cabin air filters, blower motors, blower motor resistors, A/C compressors, condensers.

Worth knowing: R-1234yf systems on newer GM vehicles use different oils and fittings than older R-134a systems.

Glass and Wipers

The usual tell is wipers that park in the wrong position. Owners who do mostly short trips see this sooner than the mileage suggests.

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

Worth knowing: Windshields with acoustic interlayer, HUD or camera brackets are not interchangeable with base glass.

Brakes

The usual tell is uneven pad thickness side to side when you pull a wheel. The number in the manual assumes conditions most people in North Texas do not have.

Common parts in this group: brake pads, brake rotors, brake calipers, brake hoses, wheel speed sensors.

Worth knowing: Aftermarket rotors are frequently thinner at the same nominal diameter, which changes heat capacity and warp behavior.

Drivetrain and Transfer Case

The usual tell is a clunk on the transition from drive to reverse. The number in the manual assumes conditions most people in North Texas do not have.

Common parts in this group: transfer case encoder motors, front differential actuators, u-joints, CV axles, driveshaft center bearings.

Worth knowing: Wheel bearings on modern GM trucks carry the wheel speed sensor in the same assembly, and sensor tolerance affects ABS and stability control.

Body and Exterior

The usual tell is a window that drops into the door or moves crookedly. Heat is the accelerant on this one, which is why it shows up faster here than up north.

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.

Filters and Fluids

The usual tell is a diesel that derates or throws a fuel pressure code on a neglected filter. Heat is the accelerant on this one, which is why it shows up faster here than up north.

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

Worth knowing: Air filter media density affects the mass airflow reading, which is a fueling input.

Before You Order

Have the VIN ready. On a Silverado 2500HD 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.

Everything here is available as a genuine GM part through our Chevrolet OEM parts catalog. If you would rather search directly, search for Silverado 2500HD parts.