2004 GMC SIERRA 2500 HD Parts & Accessories

Energy Suspension Transmission Mounts 3.1171R

Energy Suspension Transmission Mounts 3.1171R

Bushing, Transmission Mount, Gold Iridited, Red, Cadillac, Chevy, GMC, Each

Part Number: ENS-3-1171R

5.0 out of 5 stars ( 2 )

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Cloyes Timing Crankshaft Sprockets S827

Timing Gear, Crankshaft Sprocket, 22-tooth, Steel, Chevy, Each

Part Number: CLO-S827

Not Yet Reviewed

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ACDelco Transmission Solenoids 19139322

Transmission Solenoids, TCC/Lock-up Solenoid, GM, Each

Part Number: ADO-214-1892

5.0 out of 5 stars ( 3 )

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Chevrolet Performance Pushrods 10238852

Pushrod, Replacement, 5/16 in. Diameter, 7.325 in. Length, Chevy, LS, Each

Part Number: NAL-10238852

Not Yet Reviewed

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K Source Side View Mirrors 62134G

Mirror, Replacement, ABS Plastic, Black, Power, Cadillac, Chevy, GMC, Driver Side, Each

Part Number: KSC-62134G

4.25 out of 5 stars ( 8 )

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Dee Zee Hex Cast Side Step Bars DZ66321CTB

Step Bars, Aluminum, Black Textured Powdercoated, Crew Cab, Pair

Part Number: DZZ-DZ66321CTB

Not Yet Reviewed

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Pacific Performance Engineering Up-Pipes Bolt Sets 116121500

Fasteners, Bolts and Screws, Pacific Performance, Up-Pipe Bolt Set, Steel, Class 12.9, Black Oxide Finish, Chevy, GMC, Trucks, HD, 6.6L, Duramax, Each

Part Number: PPE-116121500

5.0 out of 5 stars ( 1 )

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Summit Racing™ Spark Plug Boot Heat Shields SUM-889505BK

Heat Protection, Spark Plug Boot Heat Shields, Heat Resistant Polyimide Film Insert, Straight, Aluminum, Black, 2 3/8 in. Long, LS/LT, Set of 8

Part Number: SUM-889505BK

5.0 out of 5 stars ( 1 )

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ACDelco Automatic Transmission Shift Shaft Seals 19340257

Automatic Transmission Shift Shaft Seal, Nitrile, Buick, Cadillac, Chevy, Each

Part Number: ADO-8792S

1.0 out of 5 stars ( 2 )

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Yukon Gear & Axle Differential Pinion Yokes YY GM14T-1410-30S

Yoke, Differential Location, 30-spline Inner, Steel, Rear, GM 10.5 in. (14-bolt), Each

Part Number: YGA-41180

1.0 out of 5 stars ( 1 )

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Autolite Double Platinum Spark Plugs PP5245

Spark Plug, Double Platinum, 14mm Thread, 0.708 in. Reach, Tapered Seat, 5/8 in. Wrench Size, Each

Part Number: ATL-APP5245

Not Yet Reviewed

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KYB Gas-a-Just Shocks and Struts KG54342

Shock Absorber / Strut, Gas-a-Just, Monotube, Gas Charged, Each

Part Number: KYB-KG54342

5.0 out of 5 stars ( 7 )

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Dorman Brake Banjo Bolts 13940

Fitting, Brake Hose Bolt, Banjo, Steel, Zinc, 10mm x 1.5,, Each

Part Number: RNB-13940

4.75 out of 5 stars ( 12 )

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ACDelco Silver Steering Idler Arms 19460316

Idler Arm, Steering, Bracket, Replacement, Greasable, Cadillac, Chevrolet, GMC, Hummer, Truck, Each

Part Number: ADO-46C1123A

Not Yet Reviewed

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ACDelco Fuel Tank Sending Unit Gaskets 39002198

Fuel Pump O-Ring, Rubber, 5.807 in. O.D., 5.334 in. I.D., 0.236 in. Thick, Each

Part Number: ADO-G41

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Hayden Fluid Cooler Mounting Kits 253

Fluid Cooler Mounting, Steel, Natural, Kit

Part Number: HDA-253

4.43 out of 5 stars ( 7 )

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KYB Gas-a-Just Shocks and Struts KG54340

Shock Absorber / Strut, Gas-a-Just, Monotube, Gas Charged, Each

Part Number: KYB-KG54340

5.0 out of 5 stars ( 4 )

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Summit Racing™ Diesel Fuel Injectors SUM-240070

Fuel Injector, Diesel, Chevy, GMC, 6.6L, Duramax, LB7, 2001-2004.5, Each

Part Number: SUM-240070

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Sherman Quarter Panels SHE901-59R

Quarter Panel Patch, Steel, EDP Coated, Passenger Side, Wheel Arch, Chevy, GMC, Each

Part Number: SHI-901-59R

5.0 out of 5 stars ( 2 )

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Motive Gear Ring and Pinion Sets GM9.5-373 GM 9.5 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-373

4.25 out of 5 stars ( 4 )

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Fleece Performance Fuel Injection Wiring Harnesses FPE-HAR-DMAX-FPR

Fuel pressure regulator harness, 6.6L Duramax, Each

Part Number: FLE-S0432

Not Yet Reviewed

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Dorman Exhaust Manifold Mounting Hardware 03133

Exhaust Manifold Studs, Nuts, Front Flange, Buick, Cadillac, Oldsmobile, Chevy, GMC, Set of 6

Part Number: RNB-03133

3.64 out of 5 stars ( 25 )

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Dorman Exhaust Manifold Mounting Hardware 03413B

Exhaust Manifold Bolts, Steel, Zinc Plated, Cadillac, Chevy, GMC, Chrysler, Dodge, Isuzu, Jeep, Set of 12

Part Number: RNB-03413B

4.59 out of 5 stars ( 27 )

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FAST XR Series Ignition Coils 30387-8

Ignition Coils, XR Series, Black, 50,000 Volts Max, V8, Round Truck Style, LS, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Set of 8

Part Number: FST-30387-8

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ High-Output Ignition Coils SUM-850501-1B

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U.S. Wheel 70 Series Bright White 8-Spoke Wheels 16x8

Wheel, 70 Series, Bright White, 8-Spoke, 16 in. x 8 in., 8 x 6.5 in. Bolt Pattern, 2-Pc. Steel Construction, Blue/Red Accent Lines, 5.15 in. Bore,Each

Part Number: USW-70-78801

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

2004 GMC SIERRA 2500 HD Parts and Accessories