2025 GMC Sierra 1500 Parts
The 2025 GMC Sierra 1500 came with 4 engines (2.7L L4 Turbocharged, 3.0L L6 DIESEL Turbocharged, 5.3L V8, and more), and the right parts depend on which one you have. We list 9,635 parts across all of them — each category page below covers every engine, and each row shows which engine(s) it fits.
Every part carries its brand and manufacturer part number, so you can compare OEM-grade and aftermarket options for the same fitment and cross-reference the number against the part you're replacing before anything goes in the cart.
Browse by Engine
2.7L L4 Turbocharged
2,362 parts · 20 categories Verified fitment3.0L L6 DIESEL Turbocharged
2,374 parts · 20 categories Verified fitment5.3L V8
2,498 parts · 20 categories Verified fitment6.2L V8
2,401 parts · 20 categories Verified fitmentNot sure which engine you have? Check the emissions label under the hood, your registration, or decode the VIN — the 8th character usually identifies the engine.
Parts by Category
Belt Drive Parts
46 parts · 6 subcategories · 10 brands Verified fitment Spins the accessories — serpentine and V-belts, tensioners, idlers and pulleys.Body & Lamp Assembly Parts
1,770 parts · 100 subcategories · 14 brands Verified fitment Covers the exterior panels, bumpers, mirrors, lamps and the trim that keeps weather and road debris out.Brake & Wheel Hub Parts
1,697 parts · 44 subcategories · 31 brands Verified fitment Handles stopping power and keeps each wheel turning true on its bearing and hub assembly.Cooling System Parts
276 parts · 30 subcategories · 24 brands Verified fitment Keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.Drivetrain Parts
879 parts · 90 subcategories · 13 brands Verified fitment Moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.Electrical Parts
379 parts · 32 subcategories · 13 brands Verified fitment Covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.Electrical Bulb & Socket Parts
63 parts · 7 subcategories · 2 brands Verified fitment Covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.Electrical Connector Parts
478 parts · 36 subcategories · 5 brands Verified fitment Supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.Electrical Switch & Relay Parts
267 parts · 33 subcategories · 5 brands Verified fitment Covers the switches, relays and flashers that route power to everything the driver touches.Engine Parts
573 parts · 114 subcategories · 30 brands Verified fitment Covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.Exhaust & Emission Parts
204 parts · 42 subcategories · 15 brands Verified fitment Carries combustion gases out safely and keeps emissions equipment — catalytic converters, O2 sensors, EGR — doing its job.Fuel & Air Parts
280 parts · 40 subcategories · 18 brands Verified fitment Meters fuel and air — pumps, injectors, filters, intake components and the sensors that balance the mixture.Heat & Air Conditioning Parts
308 parts · 24 subcategories · 21 brands Verified fitment Keeps the cabin comfortable and the windshield clear through the compressor, condenser, evaporator, heater core and blower.Ignition Parts
74 parts · 8 subcategories · 11 brands Verified fitment Delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.Interior Parts
563 parts · 41 subcategories · 9 brands Verified fitment Covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.Steering Parts
136 parts · 11 subcategories · 6 brands Verified fitment Connects driver to road through the rack, pump, tie rods, and column components.Suspension Parts
779 parts · 32 subcategories · 17 brands Verified fitment Controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.Automatic Transmission Parts
588 parts · 79 subcategories · 18 brands Verified fitment Covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.Wheel Parts
139 parts · 11 subcategories · 7 brands Verified fitment Covers lug nuts, studs, hub caps, TPMS sensors and trim rings.Wiper & Washer Parts
136 parts · 13 subcategories · 8 brands Verified fitment Keeps the glass clear — blades, arms, linkages, washer pumps and nozzles.Each category page covers all 4 engine options for the 2025 GMC Sierra 1500 — every part shows the engine(s) it fits, and an on-page filter narrows it to yours.
Confirm your configuration
Other GMC Sierra 1500 Years
Getting Fitment Right on the 2025 GMC Sierra 1500
Most wrong-part orders for the 2025 GMC Sierra 1500 trace back to the engine choice: with 4 options listed, components that look interchangeable — cooling parts, tensioners, mounts, sensors — often carry different part numbers per engine. Each row shows which engine(s) it fits, and each category page filters to one engine at a time.
Every part across the 20 categories shows its brand and manufacturer part number. Use the number to cross-reference: match it to the part coming off the vehicle, compare an OEM-supplier part against its aftermarket equivalent, or verify a shop's estimate line by line. When a number is discontinued, the same-fitment parts around it are the fastest path to a current replacement.
Frequently Asked Questions
How many parts fit the 2025 GMC Sierra 1500?
We list 9,635 parts for the 2025 GMC Sierra 1500, organized into 20 categories across 4 engine options. Every part includes the brand, manufacturer part number and fitment notes.
Which engines came in the 2025 GMC Sierra 1500?
Our records list 2.7L L4 Turbocharged, 3.0L L6 DIESEL Turbocharged, 5.3L V8, 6.2L V8. Parts frequently differ between them — a part verified for one engine is not guaranteed to fit another — so identify your engine first (emissions label under the hood, or the VIN's 8th character), then use the engine filter on each category page.
Are OEM and aftermarket parts both available for the 2025 GMC Sierra 1500?
Yes — parts come from original-equipment suppliers and established aftermarket brands, shown side by side with their part numbers where both cover the same fitment. Cross-referencing those numbers is how you confirm an aftermarket part genuinely replaces the OEM one.
How do I verify a part number fits my 2025 GMC Sierra 1500?
Search the number on this site: the result shows the part, its brand and every configuration with published fitment. If your exact year, model and engine appear in that list, the number is a match. The notes column carries any remaining qualifiers — position, trim or production date.
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.