Shop GMC Sierra 2500 by category
Parts that fit your GMC Sierra 2500, by department.
Drivetrain & Transmission243 parts
Engine Parts73 parts
Suspension & Steering67 parts
Exhaust Systems26 parts
Body Parts & Exterior16 parts
Tools & Equipment15 parts
Electrical Parts14 parts
Interior Accessories13 parts
Off-Road Accessories6 parts
Car Accessories5 parts
Performance Parts3 parts
Fuel System2 parts
Brakes1 part
GMC Sierra 2500
Parts fit 1999 to 2004. Owner reports cover 1996 to 2025, mapped to 1 NHTSA name, so vehicles of very different ages are counted together.
57 of 484 parts name an engine. The other 353 fit any, so choosing one here only narrows those 57.
What owners report
6 of 12 components, the largest by share, together 79.3% of all mentions. 36 reports filed with NHTSA from 1996 to 2025, read through 1 name and year query against 1 source name. A report can name more than one component, so these 36 reports carry 58 mentions, 1.61 for each report, and every share below is of those 58.
What we can sell for it
484 parts from 34 brands fit this vehicle across 13 categories, and parts listed here fit model years 1999 to 2004. Drivetrain & Transmission is the deepest at 243 parts from 4 brands. 3 of the 6 components above map to a category we stock, and the other 3 map to none.
Where the two lists meet
Each row pairs a reported component with the shelf that answers it, deepest complaint first.
Service Brakes is the largest single complaint on this vehicle at 39.7%, matched by 1 part from 1 brand.
Tires are 5.2% of reports and we stock no parts in Tires & Wheels for it.
What the complaints table says
The left table pulls from owner complaints submitted to the National Highway Traffic Safety Administration, the federal auto-safety agency, and the Sierra 2500 has 36 of them across 58 mentions.
Service Brakes dominates at 39.7%, with Hydraulic a distant second at 22.4%.
Suspension, Tires, Exterior Lighting, and Fuel System each show up further down the list.
That percentage tracks how often owners brought it up, nothing more, and it says nothing about what will happen to any one Sierra.
What the parts table says
Drivetrain & Transmission is the deepest shelf here, 243 parts across 4 brands.
Suspension & Steering adds 67 parts, and Fuel System another 2, both matching rows on the left.
Engine Parts and Exhaust Systems sit outside anything owners reported, at 73 and 26 parts.
Service Brakes leads every complaint at 39.7%, and Brakes lists 1 part.
More GMC vehicles we cover
Every GMC we build a fitment guide for. Pick another model to see the parts that fit it.