2004 GMC SIERRA 2500 HD Parts & Accessories

Earl's Performance Oil Cooler Block-Off Plates LS0020ERL

Oil Cooler Block-Off Plate, Billet Aluminum, Black Anodized, 1/8 in. NPT Port, Chevrolet, LS, Each

Part Number: EAR-LS0020ERL

4.75 out of 5 stars ( 4 )

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B&M Automatic Transmission Deep Pans 70295

Transmission Pan, Deep, Aluminum, Natural, GM, 4L80E, Each

Part Number: BMM-70295

4.64 out of 5 stars ( 22 )

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ACDelco GM Genuine Parts Power Steering Brackets 12554030

Bracket, Power Steering Pump, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-12554030

5.0 out of 5 stars ( 1 )

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Odyssey Performance Series Batteries ODP-AGM78

Battery, Performance Series, Dry Cell, 12 V, Deep Cycle/Starting, 792 Cold Cranking Amps, Side Post, Each

Part Number: ODY-78-790

5.0 out of 5 stars ( 3 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

ACDelco GM Genuine Parts Replacement Bolts 12556127

Bolt, GM Genuine Parts Replacement Bolt, Hex Head Flange, M8 x 1.25, 0.900 in. Underhead Length, Grade 10.9, Steel, Gray, Each

Part Number: ADO-12556127

3.5 out of 5 stars ( 2 )

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Pacer Performance Hi-Five Cab Lights 20-253

Cab Roof Lights, Chevy/GMC, Amber Lens, Amber LED Bulbs, Set of 3

Part Number: PPP-20-253

5.0 out of 5 stars ( 2 )

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DiabloSport Trinity 2 EX Performance Programmers 9200

Computer Programmer, Trinity 2 EX Performance, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: DBL-9200

Not Yet Reviewed

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ACDelco Gold Brake Master Cylinders 19288627

Brake Master Cylinders, Professional, 2 Holes Mounting, Reservoir, Chevrolet, GMC, Each

Part Number: ADO-18M2426

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Fluidampr Harmonic Dampers 890101

Fluidampr Harmonic Dampers 890101

Harmonic Balancer, External Balance, Steel, Black, Chevy/GMC, Duramax Diesel, Each

Part Number: FLU-890101

4.0 out of 5 stars ( 4 )

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MSD Blaster OEM Replacement Coils 826283

Ignition Coil, Blaster OEM Replacement, D580 Style, Cadillac, Chevy, GMC, Pontiac, 5.3, 5.7, 6.0, 8.1L, Set of 8

Part Number: MSD-826283

Not Yet Reviewed

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Mr. Gasket LS Timing Cover Alignment Tools LSTC1

Timing Cover Installation Tool, Crankshaft Seal Position, Chevy, Each

Part Number: MRG-LSTC1

5.0 out of 5 stars ( 12 )

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B&M 14 Bolt GM 10.5 Inch Differential Cover 70501

Differential Cover, Aluminum, Natural, Finned, B&M Logo, GM 10.5 in., 14-Bolt Cover, Each

Part Number: BMM-70501

4.55 out of 5 stars ( 11 )

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Bilstein Shock Reservoir Mounting Brackets 11-176015

Shock Reservoir Mounting Bracket, Aluminum, Black Anodized, Each

Part Number: BSN-11-176015

4.43 out of 5 stars ( 14 )

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MSD Blaster OEM Replacement Coils 82638

Ignition Coil, Blaster OEM Replacement, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, 4.8, 5.3, 6.0L, Set of 8

Part Number: MSD-82638

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Today

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King SI-Series Main Bearings MB5293SI 001

Main Bearings, SI-Series, 0.001 in. Crankshaft Undersize, Bi-metal, Grooved, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Set of 5

Part Number: KGB-MB5293SI001

4.5 out of 5 stars ( 2 )

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MSD Blaster OEM Replacement Coils 826383

Ignition Coil, Blaster OEM Replacement, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, 4.8, 5.3, 6.0L, Set of 8

Part Number: MSD-826383

Not Yet Reviewed

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McGard Lug Nuts 64024

Lug Nuts, Conical Seat, 14mm x 1.50 RH, 1.945" Long, 22mm Hex, Closed End, Black, Steel, Set of 4

Part Number: MCG-64024

5.0 out of 5 stars ( 1 )

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FASS Fuel Systems D-MAX Fuel Pump Kits DMAX-7001

Fuel Pump, D-MAX, Lift Style, Electric, 10 psi, Wiring Harness, Chevy, GMC, 6.6L Diesel, Kit

Part Number: FSY-DMAX-7001

5.0 out of 5 stars ( 4 )

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ACDelco Transmission Bellhousings 29540491

Transmission Bellhousing, New, Aluminum, Allison, 1000, 1000-M74, Each

Part Number: ADO-29540491

3.0 out of 5 stars ( 1 )

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S&B Filters Body Mount Kits 81-2000

Bushings, Body Mounts, Silicone, Black, Chevy, GMC, Standard Cab, Kit

Part Number: SBF-81-2000

Not Yet Reviewed

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King HP-Series Main Bearings MB5013HP 010

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Alecular Silicon, Chevy, Small Block, LS, Set of 5

Part Number: KGB-MB5013HP010

Not Yet Reviewed

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Holley LS Valley Covers 241-369

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Black Anodized, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-369

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ICT Billet LS Lifter Valley Covers 551646

4 out of 5 stars ( 8 )

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Lares Pitman Arm Hardware 179

Pitman Arm Hardware, Nut, Hex, Steel, Natural, with Washer, Domestic Models, Each

Part Number: LSC-179

5.0 out of 5 stars ( 7 )

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MechMan High-Output Racing Alternators 8237240B

240 Amp H.O. Racing Alternator

Part Number: MEH-8237240B

Not Yet Reviewed

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Go Rhino Bed Bars 9009560DSB

Roll Bar, Truck Bed Mount, Steel, Black Powdercoated, Chevy, Dodge, Ford, GMC, Ram, Toyota, Kit

Part Number: GRH-9009560DSB

5.0 out of 5 stars ( 2 )

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2004 GMC SIERRA 2500 HD Parts and Accessories