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

QA1 Proma Star Single Adjustable Coilover Systems for 1979-2004 MUSTANG - RCK52403

Coilover Kits, Proma Star Single Adjustable Coilover Systems, Rear, Twin-tube Shocks, Eyelet Mounts, 175 lbs./in. Spring Rate, Ford, Pair

Part Number: QA1-RCK52403

Not Yet Reviewed

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Eagle H-Beam Connecting Rods CRS6657F3D

Connecting Rod, H-Beam, 4340 Forged Steel, Bushed, Cap Screw, 6.657 in. Length, Ford, 5.4L, Each

Part Number: ESP-6657F3D

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

COMP Cams LST Series Solid Roller Camshafts 132-300-13

COMP Cams LST Series Solid Roller Camshafts 132-300-13

Camshaft, LST Stage 1, Solid Roller, 0.400 in./0.400 in. Lift, Chevy, Duramax, Each

Part Number: CCA-132-300-13

Not Yet Reviewed

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BBK Full-Length Headers 16340

Headers, Engine Swap, Long Tube, Steel, Silver Ceramic Coated, Ford, 5.0L Coyote, Pair

Part Number: BBK-16340

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Forged Crankshafts SUM-180LS400024

Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 24X Reluctor, Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS400024

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Edge Evolution CTS3 Programmers 85401-201

Computer Programmer, 2001-16 GM Duramax Diesel, 6.6L, CTS3, Each

Part Number: EGE-85401-201

Not Yet Reviewed

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Holley EFI Systems Wiring Harnesses 558-115

Wiring Harnesses, Holley EFI, Gen III Hemi, Throttle Position, Idle Air Controls, Factory Connectors, Chrysler, Dodge, Jeep, Hemi, Early Model, Each

Part Number: HLY-558-115

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Diamond Pistons Competition Series Pistons 11521-R1-8

Pistons, Dish, Competition Series, Forged Aluminum, 4.030 in. Bore, -15.00cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11521-R1-8

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Flowmaster Force II Exhaust Systems 17362

Exhaust, Force II, Cat-Back, Steel, Aluminized, Polished Tip, Chevy, GMC, Pickup, 4.8, 5.3L

Part Number: FLO-17362

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Trail-Gear Rock Defense Bumpers for 1995-2004 TACOMA - 120176-1-KIT

Bumper, Rock Defense, Front, Tube, Steel, Natural, Toyota, Each

Part Number: TGI-120176-1-KIT

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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D.S.S. SX-Series Forged Piston and Ring Kits K8137-4060

Piston Set, 383 SBC SX Series +4cc Dome Top Piston Set. 4.060 bore

Part Number: DMS-K8137-4060

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

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

Estimated Ship Date: Tomorrow

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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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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

Estimated Ship Date: Tomorrow

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Motive Gear Performance Ring and Pinion Sets V885410L Corvette C5/C6 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, Chevy, C-5, Set

Part Number: MGR-V885410L

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Eagle Forged 4140 Steel Crankshafts 534740006100

Crankshaft, 1-Piece Seal, Internal Balance, Forged 4140 Steel, 4.000 in. Stroke, 58-Tooth Reluctor, Chevy, LS, Each

Part Number: ESP-534740006100

Not Yet Reviewed

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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 )

Estimated Ship Date: Tomorrow

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Flowtech Shorty Headers 91945-1FLT

Headers, Shorty, Steel, Ceramic Coated, Dodge, 5.2, 5.9L, Pair

Part Number: BIG-91945-1FLT

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

JBA Performance Exhaust Cat4ward Headers 1945S-1

4.25 out of 5 stars ( 34 )

Estimated Ship Date: Tomorrow

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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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Mishimoto Performance Radiators MMRAD-F2D-60

Radiator, Downflow, 2-row, Aluminum, Natural, Ford, Each

Part Number: MIO-MMRAD-F2D-60

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Mishimoto Performance Radiators MMRAD-RAM-03

Radiator, Aluminum, Crossflow, Dodge, Each

Part Number: MIO-MMRAD-RAM-03

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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PowerStop Z36 Truck and Tow Brake Upgrade Kits with Calipers for 2003-2007 LIBERTY - KC2162-36

Disc Brake Kits, Z36 Truck and Tow Performance Brake Kits, Front and Rear, Cross-drilled/Slotted Rotors, 1-piston Red Calipers, Jeep, Kit

Part Number: PWR-KC2162-36

Not Yet Reviewed

Estimated Ship Date: Feb 18, 2026 if ordered today

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Estimated Ship Date: Feb 18, 2026 if ordered today

COMP Cams Short Travel Hydraulic Roller Lifters 15850-16

Lifter; Short Travel Race Hydraulic Roller Lifter; 16 pc.; Drop In; REM-Surfaces; Black Oxided

Part Number: CCA-15850-16

2.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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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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Mahle Original OE Replacement Pistons 224-3503WR.030

Pistons, OE Replacement, Dish, Cast Aluminum, Ford, 6.0L, Diesel, V8, Set of 8

Part Number: MAH-2243503WR030

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

2003 Parts and Accessories