2003 - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Hays Twister 3/4 Race 2,400-2,800 Stall Torque Converter 97-1G24Q

Hays Twister 3/4 Race Torque Converter 1984- 97 GM, 4L60/4L60E/700R4, 2400- 2800 RPM stall

Part Number: HAY-97-1G24Q

5.0 out of 5 stars ( 1 )

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Manley Platinum Series Pistons 594130C-8

Pistons, Forged, Dish, 3.582 in. Bore, Ford, Modular V8, V10, Set of 8

Part Number: MAN-594130C-8

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

QA1 Pro Coilover Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - GD517-10650C

Coilover Kit, Pro Coilover System, Front, Double Adjustable, Chevy, GMC, Pair

Part Number: QA1-GD517-10650C

Not Yet Reviewed

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FiTech Ultimate Rebel LS 1000 HP EFI Loaded Intake Manifold Kits 70070

Intake Manifolds, Ultimate Rebel LS 1000 HP Loaded, Short Cathedral, Aluminum, Black Anodized, Throttle Body, Injectors, Sensors, Chevy, Kit

Part Number: FIF-70070

Not Yet Reviewed

Estimated Ship Date: Feb 19, 2026 if ordered today

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Estimated Ship Date: Feb 19, 2026 if ordered today

Diamond Pistons Competition Series Pistons 11543-R1-8

Diamond Pistons Competition Series Pistons 11543-R1-8

Pistons, Flat Top, Competition Series, Forged Aluminum, 4.065 in. Bore, -2.00cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11543-R1-8

5.0 out of 5 stars ( 1 )

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Belltech Lowering Kits with Street Performance Shock Absorbers for 1999-2006 SIERRA 1500, SILVERADO 1500 - 664SP

Lowering Kit, 3 in. Front, 4 in. Rear, Chevy, GMC, Pickup, Standard Cab, RWD, Kit

Part Number: BEL-664SP

5.0 out of 5 stars ( 1 )

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Flowmaster American Thunder Exhaust Systems for 1998-2003 F-150 - 817663

Exhaust System, American Thunder, Cat-Back, Split Rear/Side Exit, Stainless Steel, Natural, Ford, 4.6, 5.4L

Part Number: FLO-817663

4.0 out of 5 stars ( 6 )

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D.S.S. SX-Series Forged Piston and Ring Kits K1901-3840

Pistons, Rings, SX-Series, Forged, 10.00cc Dish, 3.840 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1901-3840

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

D.S.S. SX-Series Forged Piston and Ring Kits K8183-4125

Piston Set, 434 SBC SX Series -16cc Dish Top Piston Set. 4.125 bore

Part Number: DMS-K8183-4125

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

COMP Cams Thumpr LS Camshaft Packages CK54-700-11

Camshaft Kits, Thumpr LS Camshaft Packages, Hydraulic Roller Tappet, 272 Int./291 Exh. Advertised Duration, Pushrods, Chevrolet, 4.8L, 5.3L, 6.0L, Kit

Part Number: CCA-CK54-700-11

Not Yet Reviewed

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Eagle H-Beam Connecting Rods CRS7100C3D2000

Connecting Rod, H-Beam, 4340 Forged Steel, Cap Screw, Floating, 7.100 in. Length, Chevy, Chrysler, Set of 8

Part Number: ESP-7100C3D2000

Not Yet Reviewed

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Eagle Forged 4140 Steel Crankshafts 534636226100

Crankshaft, One-piece Seal, Internal Balance, Forged 4140 Steel, 3.622 in. Stroke, 6.100 in. Rod Length, Chevrolet, Small Block LS, Each

Part Number: ESP-534636226100

Not Yet Reviewed

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ICT Billet Bellhousing Adapter Plate Kits 551001-GEN1

Bellhousing Adapter Plate Kit, Aluminum, Chevy Bolt Circle, for Nissan CD009 Manual Transmission, Chevrolet, Kit

Part Number: ICB-551001-GEN1

Not Yet Reviewed

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Firestone Ride-Rite Analog All-In-One Kits W217602869

Air Springs, Ride-Rite Analog All-In-One, Air Compressor, Gauge, Rear, Chevrolet, GMC, Kit

Part Number: FIP-2869

Not Yet Reviewed

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Eibach Pro-Truck Systems for 2000-2006 TUNDRA - E80-82-066-01-22

Suspension Leveling Kit, Pro-Truck System, Stage 1, Coil Springs, Shocks, Toyota, Kit

Part Number: EIB-E80820660122

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC672CKTD.010

Piston and Ring Kits, Premium, Forged Aluminum, 4.010 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Set of 8

Part Number: UEM-IC672CKTD010

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

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Estimated Ship Date: Feb 5, 2026 if ordered today

BDS Suspension Front Upper Control Arms BDS121252

Control Arm, Front Upper, Black, Tubular, Chevy, GMC, Pair

Part Number: BDX-BDS121252

5.0 out of 5 stars ( 1 )

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Wilwood SLC56 Caliper Kits for 1997-2004 CORVETTE - 140-17665-BK

Brake Calipers, SLC56, Front, Aluminum, Black, Wilwood Logo, 4-piston, Semi-metallic Pads, Chevrolet, Kit

Part Number: WIL-140-17665-BK

Not Yet Reviewed

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Billet Specialties Tru Trac Billet Alternators 12050

Alternator, Polished, 170 Amp, Ford, Chevy, Chrysler, Dodge, Plymouth, V8, Each

Part Number: BSP-12050

Not Yet Reviewed

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PowerStop Z36 Truck and Tow Brake Upgrade Kits with Calipers for 2003-2006 WRANGLER - KC2154-36

Disc Brake Kits, Z36 Truck and Tow Performance, Front and Rear, Cross-drilled/Slotted Rotors, Red Powdercoated Calipers, Z36 Brake Pads, Jeep, Kit

Part Number: PWR-KC2154-36

5.0 out of 5 stars ( 2 )

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Dorman 30 Spline Differential Carriers GM 8.5/8.625 Inch 697-909

Differential Carrier, Stock Replacement, Cast Iron, GM 8.5/8.625 in., 30-Spline, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: RNB-697-909

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Gibson Headers GP131S-C

Headers, Shorty, Without Air Injection, Automatic Trans. Only, With EGR Fitting, Stainless Steel, Ceramic Coated, Chevy, GMC, SUV, Pickup, 8.1L, Pair

Part Number: GIB-GP131S-C

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Motive Gear Ring and Pinion Sets D70-354 Dana 70 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 70, Set

Part Number: MGR-D70-354

5.0 out of 5 stars ( 1 )

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Summit Racing™ Performance Ford Modular V8 Connecting Rods SUM-MOD66572H

Forged Pro Ford Mod Motor 4340 Forged Steel H-Beam Connecting Rod, 6.652 in. Length, .866 Floating Pin, ARP 2000 12 pt. Bolts, Set of 8

Part Number: SUM-MOD66572H

Not Yet Reviewed

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Mahle PowerPak Piston and Ring Kits 930219005

Piston and Ring Kit, Forged, Dish, 3.905 in. Bore, Chevy, LS, Kit

Part Number: MLE-930219005

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

2003 Parts and Accessories