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

Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-390 GM 8.5/8.6 in. 3.90 Gears

Ring and Pinion Gears, 3.90:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: YGA-24159

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Firestone Ride-Rite Air Helper Spring Kits for 2000-2006 TUNDRA - W217602245

Air Springs, Rear, Toyota, Kit

Part Number: FIP-2245

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK011 Dana 44 5.13 Gears

Ring and Pinion Gears and Installation Kit Combo, 5.13:1 Ratio, Dana 44, Jeep, Kit

Part Number: YGA-31011

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Manley Street Master Pistons 494220-8

Pistons, Forged, Dish, 3.572 in. Bore, Ford, Modular V8, Set of 8

Part Number: MAN-494220-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Melling Stock Replacement Cam and Lifter Kits CL-MC1383

Melling Stock Replacement Cam and Lifter Kits CL-MC1383

Camshaft and Lifter Kit, Hydraulic Roller, Chevy, LS, Kit

Part Number: MEL-CL-MC1383

1.0 out of 5 stars ( 1 )

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Holley OEM Style EFI Fuel Tank Modules 12-324

Fuel Pumps, OEM Style, EFI, Electric, In-Tank, 450 lph, 60 psi, 12V, Sending Unit, 220-20 ohms, -8 AN Ports, No Return, E85 Fuel, Dodge, Ram, Kit

Part Number: HLY-12-324

Not Yet Reviewed

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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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AP Exhaust Direct-Fit Catalytic Converters for 2002-2010 SC430 - 642841

Catalytic Converters, Direct-Fit, Two Stock Flange Inlets, One Stock Flange Outlet, 43.00 in. Overall Length, Rear, Lexus, 4.3L, Each

Part Number: APH-642841

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

ATI Super Damper Serpentine Series Harmonic Balancers ATI918657

Harmonic Balancer, Super Damper HTD Drive, Internal Balance, 7.48 in. Diameter, Aluminum/Steel, Black, Laser Etched Markings, Chevy, 4.8-6.0L, Each

Part Number: ATI-918657

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley EFI LS Single Plane Split-Design Race Intake Manifolds 300-294

Intake Manifolds, LS Split Design EFI, Single Plane, Aluminum, Natural, 4500 Dominator, Chevrolet, LS1, LS2, LS6, Kit

Part Number: HLY-300-294

Not Yet Reviewed

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XClutch Stage 2 Clutch Kits for 1996-2004 MUSTANG - XKFD28015-1C

Clutch Kit - Stage 2 Single Cushioned Ceramic Clutch Disc

Part Number: XCL-XKFD28015-1C

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8715-1

Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 271/287, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8715-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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DiabloSport Trinity 2 MX Performance Monitors 9050

Monitor, Trinity 2 MX Performance, Monitor Only, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Hummer, Isuzu, Jeep, Mazda, Pontiac, Ram, Each

Part Number: DBL-9050

5.0 out of 5 stars ( 1 )

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Rough Country N3 Suspension Lift Kits 8596N2

Suspension Lift, N3 Series, 3.00 in. Front, 2.00 in. Rear, Chevy, GMC, 4WD, RWD, Kit

Part Number: ROU-8596N2

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

TeraFlex Suspension Knuckles 4828490

KNUCKLE STK TJ/YJ HISTEER

Part Number: TMI-4828490

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Richmond Gear EXCel Ring and Pinion Sets GM105456TK GM 10.5 in. (14-bolt) 4.56 Gears

Ring and Pinion Kit

Part Number: RMG-GM105456TK

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-2901-3903

Pistons, FX-Series, Forged, 10.00cc Dish, 3.903 in. Bore, Chevy LS, Set of 8

Part Number: DMS-2-2901-3903

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

Dorman Driveshafts for 2000-2005 EXCURSION - 938-063

Driveshaft, Two-Piece, Steel, Front, Ford, Each

Part Number: RNB-938-063

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Flowmaster FlowFX Exhaust Systems 717990

Exhaust System, FlowFX, Cat-back, Stainless Steel, Natural, Dual Side Exit, Black Ceramic Coated Tip, Chevy, GMC, Kit

Part Number: FLO-717990

Not Yet Reviewed

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Dorman Driveshafts for 2000-2006 TUNDRA - 926-147

Drive Axle Shaft Assembly, Pre-Pressed Rear Axle

Part Number: RNB-926-147

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Roller Camshafts 54-602-11

Camshaft, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .573/.558, Chevy, Small Block, LS

Part Number: CCA-54-602-11

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK006 Dana 30/35 4.88 Gears

Ring and Pinion Gears and Installation Kit Combo, 4.88:1 Ratio, Dana 30 Front, AMC Model 35 Rear, Jeep, Kit

Part Number: YGA-31006

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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MagnaFlow Direct-Fit Catalytic Converters for 2000-2003 DURANGO - 49473

Catalytic Converter, Stainless Steel, Each

Part Number: MPE-49473

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Summit Racing™ Pro LS Forged Pistons SUM-3269453903-3

Pro LS 2618 Forged Piston, 3.903 bore, 1.326 C.H., 3cc mini dome, Std. Stroke, Gen. 3 Press-fit Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8

Part Number: SUM-3269453903-3

Not Yet Reviewed

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South Bend Clutch Stage 2 Daily Driver Clutch Kits for 2003-2006 6 - MZK1001-HD-O

Clutch Kit, Stage 2 Daily Driver, Single, 1.063 in. - 23-spline, Organic Disc, Pressure Plate, Mazda, 3.0L, Kit

Part Number: SBB-MZK1001-HD-O

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

2003 Parts and Accessories