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 Gear and Differential Combos YGK2075

Ring and Pinion Gears,Yukon Gear & Axle 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion Gearand 1.62" Inside Diameter Axle Bearings & Seals

Part Number: YGA-10470

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Eaton Electronic ELocker 30 Spline Differential Dana Super 30 19819-020

Differential Carriers, Electronic ELocker Differentials, Dana Super 30, Electric Locker, 10-bolt, 30-spline, Steel, Front, Jeep, Each

Part Number: ETN-19819-020

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Nitrous Outlet Nitrous Oxide Plate Systems for 1999-2004 MUSTANG - 00-10156-15

Nitrous Outlet Nitrous Oxide Plate Systems for 1999-2004 MUSTANG - 00-10156-15

99-01 Cobra, 03-04 Mach 1 Ford 4 Valve Plate System (15Lb Bottle)

Part Number: NXO-00-10156-15

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

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Estimated Ship Date: Jan 14, 2026 if ordered today

Nitrous Outlet Nitrous Oxide Plate Systems for 1999-2004 MUSTANG - 00-10157-15

99-01 Cobra, 03-04 Mach1 Ford 4 Valve Hard-Lined Plate System (15Lb Bottle)

Part Number: NXO-00-10157-15

Not Yet Reviewed

Estimated Ship Date: Jan 14, 2026 if ordered today

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Estimated Ship Date: Jan 14, 2026 if ordered today

COBB Tuning Exhaust Systems for 2002-2007 IMPREZA - 512140

Exhaust System, Cat-Back, Titanium, 4 in. Tips, Burnt, Subaru, Kit

Part Number: CBT-512140

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Auburn Gear Select-A-Loc 30 Spline Differential Dana 44 545042

Differential, Select-A-Loc, 30-Spline, Dana 44, 10-Bolt, Each

Part Number: AUB-545042

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Yukon Gear & Axle Zip Lockers Dana 60/61 YZLD60-3-30

Zip Locker, Air Locker, Dana 60/61, 30 Spline, 4.10 Down Ratio, Each

Part Number: YGA-34021

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Dinan Free Flow Stainless Exhaust Systems for 2000-2003 M5 - D660-3950

Exhaust, Free Flow, Rear Axle Back, Stainless Steel, Two Rear Outlets, BMW, 5.0L, Kit

Part Number: DNN-D660-3950

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

TeraFlex - Suspension Leveling & Lift Kits for 1997-2006 WRANGLER - 1456330

Lift Kit-Suspension

Part Number: TMI-1456330

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

Moroso Fabricated Aluminum Valve Covers 68467

Valve Covers, Stock Height, Billet Aluminum, Billet Finish, Moroso Logo, Mopar Hemi V8, Pair

Part Number: MOR-68467

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Moroso Fabricated Aluminum Valve Covers 68468

Valve Covers, Stock, Billet Aluminum, Black Anodized, Moroso Logo, Mopar Hemi V8, Pair

Part Number: MOR-68468

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Standard Motor EGR Coolers ECK10

EGR Cooler, OE Replacement, Gaskets, Mounting Hardware, Ford, Freightliner, Kit

Part Number: SMP-ECK10

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

Standard Motor Stock Replacement Remanufactured Stock Turbocharger TBC574

Turbocharger - Remanufactured

Part Number: SMP-TBC574

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

South Bend Clutch Stage 2 Daily Driver Clutch Kits for 2002-2004 FRONTIER, XTERRA - K06075-HD-O

Clutch Kit, Stage 2 Daily Driver, Single, 1.000 in. - 24-spline, Organic Disc, Pressure Plate, for Nissan, 3.3L, Kit

Part Number: SBB-K06075-HD-O

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

South Bend Clutch Stage 2 Endurance Clutch Kits for 2002-2004 FRONTIER, XTERRA - K06075-HD-TZ

Clutch Kit, Stage 2 Endurance, Single, 1.000 in. - 24-spline, Kevlar® Disc, Pressure Plate, for Nissan, 3.3L, Kit

Part Number: SBB-K06075-HD-TZ

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

South Bend Clutch Stage 2 Drag Race Clutch Kits for 2002-2004 FRONTIER, XTERRA - K06075-HD-DXD-B

Clutch Kit, Stage 2 Drag Race, Single, 1.000 in. - 24-spline, Ceramic Disc, Pressure Plate, for Nissan, 3.3L, Kit

Part Number: SBB-S0916

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

South Bend Clutch Stage 2 Daily Driver Clutch Kits for 2001-2006 OPTIMA, 2002-2005 SONATA - K05507F-HD-O

Clutch Kit, Stage 2 Daily Driver, Single, 0.813 in. - 20-spline, Organic Disc, Pressure Plate, Flywheel, for Hyundai, for Kia, 2.4L, Kit

Part Number: SBB-K05507F-HD-O

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

South Bend Clutch Stage 2 Endurance Clutch Kits for 2002-2005 OPTIMA, SONATA - K05508F-HD-TZ

Clutch Kit, Stage 2 Endurance, Single, 0.813 in. - 20-spline, Kevlar® Disc, Pressure Plate, Flywheel, for Hyundai, for Kia, 2.7L, Kit

Part Number: SBB-S0671

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

Injector Dynamics ID1750x Fuel Injectors 1750.48.14.14.6

Fuel Injector, ID1750x Series,1728.0cc/min Flow Rate, USCAR, 2.32 in. Height, BMW, Nissan, Porsche, Set of 6

Part Number: IJD-17504814146

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

Edelbrock Pro-Flo 4 Plus Self-Learning Engine Management Systems 36130

Engine Management System, Fuel Injection, ProFlo 4 Plus, ECU, Oxygen Sensor, Drive-By-Wire, Tablet, 24 or 58x Harness Required, Chevy, LS, Swap, Kit

Part Number: EDL-36130

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

FiTech Ultimate LS Standalone ECUs 70050-1

4 out of 5 stars ( 1 )

Estimated Ship Date: Today

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VEGE Remanufactured Drive Axle Assemblies for 1999-2005 SIERRA 1500, SILVERADO 1500 - RAX1955C

Rear Axle, GM 1500 2/4WD AXLE GT4

Part Number: VRE-RAX1955C

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Dinan Free Flow Stainless Exhaust Systems for 2001-2006 M3 - D660-4604

Exhaust, Free Flow, Rear Axle Back, Stainless Steel, Four Rear Outlets, BMW, 3.2L, Kit

Part Number: DNN-D660-4604

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

Walker Direct-Fit Catalytic Converters 81761

Catalytic Converter, Direct Fit, Assembled Y-pipe, Stainless Steel Case, Cadillac, Chevy, GMC, Each

Part Number: WLK-81761

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

MagnaFlow Touring Series Performance Exhaust Systems for 2001-2006 M3 - 16602

Exhaust System, Cat-Back, Stainless Steel, Resonator, Polished Stainless Tips, BMW, 3.2L, Kit

Part Number: MPE-16602

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

Decked In-Vehicle Storage Systems VG1

Truck Bed Tool Box, In-Vehicle Storage Systems, 2-door, Polyethylene, Black, for 135 in. Wheelbase Only, Chevrolet, GMC, Kit

Part Number: DCD-VG1

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

2003 Parts and Accessories