2025 GMC Sierra 3500 HD Parts

Performance parts and accessories that fit your 2025 GMC Sierra 3500 HD. Shop Wehrli, Cognito, R1 Concepts and more. Every part is checked against your vehicle before it ships.

• WehrliWehrli 20-24 Duramax L5P Stage 1 High Flow Bundle Kit - Bronze Chrome MPN wcfWCF100410-BC$674.15In stock
• WehrliWehrli 17-24 Duramax L5P High Flow Intake Horn - WCFab GreyMPN wcfWCF100775-GRY$285.18In stock
• CognitoCognito 20-24 Chevy/GMC Silv/Sierra 2500/3500 HD 2WD/4WD 12in Elite Lift Kit w/ Elka 2.5 RR ShocksMPN cog210-P1178$10705.88In stock
• WehrliWehrli 17-24 Duramax L5P High Flow Intake Horn - Illusion PurpleMPN wcfWCF100775-IP$285.18In stock
• WehrliWehrli 20-24 Chevrolet 6.6L L5P Duramax Driver Side 3in Intercooler Pipe - Sparkle CopperMPN wcfWCF100365-SC$358.90In stock
• CognitoCognito 20-24 Chevy Silverado 2500HD/3500HD 5in Elite Lift KitMPN cog210-P1292$7433.43In stock
• R1 ConceptsR1 2011-2025 Chevy Silverado 2500 HD/2500 HD Classic Front Left Drilled & Slotted Silver Brake RotorMPN rnc631-48059L$236.20In stock
• WehrliWehrli 20-24 Chevrolet-GMC 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Gloss BlackMPN wcfWCF100268-GB$523.80In stock
• WehrliWehrli 20-26 GM Duramax/19-24 Cummins Rear Axle Differential Cover - Bengal GreyMPN wcfWCF100114-BG$377.33In stock
• WehrliWehrli 2020-2024 Chevrolet 6.6L L5P Duramax Upper Coolant Pipe - WCFab RedMPN wcfWCF100541-RED$194.00In stock
• WehrliWehrli L5P Duramax Thermostat Housing - Gloss BlackMPN wcfWCF100188-GB$179.45In stock
• WehrliWehrli L5P Duramax Thermostat Housing - Gun MetalMPN wcfWCF100188-GM$179.45In stock
• CognitoCognito 20-24 Chevy/GMC Silv/Sierra 2500/3500 HD 2WD/4WD 5in Perf Lift Kit w/ Fox PSRR 2.0 ShocksMPN cog110-P1270$5488.06In stock
• aFeaFe 20-23 GM Diesel Trucks V8 6.6L L5P BladeRunner 3in Aluminum Hot Charge Pipe - BlackMPN afe46-20448-B$415.00In stock
• WehrliWehrli 20-26 GM Duramax L5P Upper Coolant Pipe - Bengal GreyMPN wcfWCF100541-BG$169.75In stock
• WehrliWehrli L5P Duramax Thermostat Housing - Bengal BlueMPN wcfWCF100188-BB$179.45In stock
• WehrliWehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - WCFab RedMPN wcfWCF100224-RED$265.78In stock
• WehrliWehrli 20-24 Chevrolet 6.6L LP5 Duramax 4in Intake Kit Stage 2 - Gun MetalMPN wcfWCF100684-GM$833.23In stock
• WehrliWehrli 20-26 GM Duramax WCFab X PPE High Capacity Aluminum Oil Pan - Gun MetalMPN wcfWCF100134-GM$493.73In stock
• SkyjackerSkyjacker 20 GM 2500HD 6In KIT W/M95MPN skyC20681TDK-M$2217.96In stock
• WehrliWehrli 20-26 GM HD Truck Billet TIG Torch Stubby Antenna - WCFab GreyMPN wcfWCF100049-GRY$78.57In stock
• WehrliWehrli 20-24 Chevrolet-GMC 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Sparkle Granny SmithMPN wcfWCF100268-SGS$548.05In stock
• WehrliWehrli L5P Duramax Thermostat Housing - Semi-Gloss BlackMPN wcfWCF100188-SGB$179.45In stock
• CognitoCognito 11-25 Chevy/GMC Silv/Sierra 2500/3500 HD 2WD/4WD Idler Frame Support Gusset KitMPN cog110-91329$84.95In stock