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

MagnaFlow Direct-Fit Catalytic Converters for 2000-2005 ASTRO, SAFARI - 458008

Catalytic Converter, Direct Fit, Stainless Steel, Chevy, GMC, Each

Part Number: MPE-458008

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

MagnaFlow Direct-Fit Catalytic Converters for 2000-2003 DURANGO - 458043

Catalytic Converter, Stainless Steel, Dodge, 4.7L, Driver Side, Each

Part Number: MPE-458043

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

MagnaFlow Direct-Fit Catalytic Converters for 2000-2003 DURANGO - 458047

Catalytic Converter, Stainless Steel, Dodge, 4.7L, Each

Part Number: MPE-458047

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

MagnaFlow Direct-Fit Catalytic Converters for 2002-2003 DURANGO - 458048

Catalytic Converter, Stainless Steel, Dodge, 5.9L, Each

Part Number: MPE-458048

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 Direct-Fit Catalytic Converters for 2002-2003 RAM 1500 - 458070

Catalytic Converter, Stainless Steel, Dodge, 4.7L, Each

Part Number: MPE-458070

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

Zumbrota Remanufactured Transfer Cases RTC263GHD-2

Transfer Case, Remanufactured, Chain Driven, 32-Spline, New Process 263, Each

Part Number: ZUD-RTC263GHD-2

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

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Zumbrota Remanufactured Transfer Cases for 2003-2010 RAM 2500, RAM 3500 - RTC271D-1

Transfer Case, Remanufactured, Chain Driven, 29-Spline, New Venture 271, Dodge, Each

Part Number: ZUD-RTC271D-1

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

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Zumbrota Remanufactured Transfer Cases for 2003-2010 RAM 2500, RAM 3500 - RTC271D-3

Transfer Case, Remanufactured, Chain Driven, 29-Spline, New Venture 271, Dodge, Each

Part Number: ZUD-RTC271D-3

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

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Zumbrota Remanufactured Transfer Cases for 2003-2007 H2 - RTC4484G-1

Transfer Case, Remanufactured, Chain Driven, 27-Spline, Borg Warner 4484, Hummer, Each

Part Number: ZUD-RTC4484G-1

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

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Yukon Gear & Axle - Ring and Pinion Gears for 2000-2010 F-150, 2004 F-150 HERITAGE - YGK101

Ring and Pinion Gears and Installation Kit, ''00-''10 FORD F150 w/ 9.75 Rear; 3.73 Complete Gear Package F/R R&P''s & Master Kits

Part Number: YGA-31081

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Nitrous Outlet Nitrous Oxide Plate Systems 00-10109-12

Nitrous Outlet Nitrous Oxide Plate Systems 00-10109-12

Nitrous Oxide Systems, EFI Plate, Wet Style, WOT Switch Activation, 12 lbs. Bottle, for 90mm LSX Intake, Cadillac, Chevy, Pontiac, Small Block LS, Kit

Part Number: NXO-00-10109-12

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 00-10127-12

78mm 99-06/2007 Classic GM Truck Hardline Plate System (50-200HP) (12lb Bottle)

Part Number: NXO-00-10127-12

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 EFI Dual Stage Single Nozzle Systems 00-10003-12

GM EFI Dual Stage Single Nozzle System (35-200HP) (12lb Bottle)

Part Number: NXO-00-10003-12

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

USA Standard Gear Ring and Pinion Gear and Differential Combos ZGK2109

Ring and Pinion Gears,USA Standard 11.5" AAM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 30 Spline Yukon Dura Grip Limited Slip Positraction, with

Part Number: SPZ-10822

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

Yukon Gear & Axle 30 Spline Differential Carriers Chrysler/GM 11.5 Inch YP PC11.5-HELIC

Differential Carrier, Limited Slip, Helical Gear Type, 30-Spline, Chrysler, GM, 11.5 in., Each

Part Number: YGA-32244

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

Holley Mid-Mount Complete Accessory Systems 20-186P

Accessory Drive Systems, LS Mid-mount, Serpentine, Alternator, Water Pump, Counterclockwise, Power Steering, GM 2, Polished, Chevy, 4.8-7.0L, Kit

Part Number: HLY-20-186P

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

Need It Sooner? We recommend these similar substitute parts:

Chevrolet Performance Serpentine Accessory Drive Kits 19421445

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Yukon Gear & Axle - Ring and Pinion Gears for 1999-2016 F-350 SUPER DUTY - YGK146

Ring and Pinion Gears and Installation Kit, 00-16 F350 DRW; 4.11 THICK GEAR/KIT PACKAGE; D80 4.11 THICK (3.73&Down_Case)/ D60 FRONT (4.10&Down)

Part Number: YGA-31126

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

QA1 Level 1 Full Vehicle Handling Suspension Kits for 1999-2006 SIERRA 1500, SILVERADO 1500 - HK01-GMT05

Suspension Handling Packages, Level 1 Handling, Front Coilovers, Control Arms, Rear Shocks, Front Sway Bar, Chevy, GMC, Short Bed, Kit

Part Number: QA1-HK01-GMT05

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Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 Level 1 Full Vehicle Handling Suspension Kits for 1999-2006 SIERRA 1500, SILVERADO 1500 - HK01-GMT06

Suspension Handling Packages, Level 1 Handling, Front Coilovers, Control Arms, Rear Shocks, Front Sway Bar, Chevy, GMC, Long Bed, Kit

Part Number: QA1-HK01-GMT06

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 Rear Suspension Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - R246-200

Rear Suspension System, Adjustable, Double Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Long Bed, Chevy, GMC, Kit

Part Number: QA1-R246-200

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Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 Rear Suspension Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - R145-200

Rear Suspension System, Adjustable, Single Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Short Bed, Chevy, GMC, Kit

Part Number: QA1-R145-200

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Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 Rear Suspension Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - R146-200

Rear Suspension System, Adjustable, Single Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Long Bed, Chevy, GMC, Kit

Part Number: QA1-R146-200

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 Rear Suspension Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - R245-200

Rear Suspension System, Adjustable, Double Adjustable Coilover, 200 lbs./in., Torque Arm, Panhard Bar, GM 10-Bolt, Short Bed, Chevy, GMC, Kit

Part Number: QA1-R245-200

Not Yet Reviewed

Estimated Ship Date: Feb 4, 2026 if ordered today

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Estimated Ship Date: Feb 4, 2026 if ordered today

QA1 1999-06 Silverado/Sierra 1500 Front Coilover Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - 52626-D700

Coilover Conversion, Double Adjustable Shocks, 700 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black Powdercoated, Chevy, GMC, Kit

Part Number: QA1-52626-D700

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

QA1 1999-06 Silverado/Sierra 1500 Front Coilover Conversion Systems for 1999-2006 SIERRA 1500, SILVERADO 1500 - 52626-S700

Coilover Conversion, Single Adjustable Shocks, 700 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black Powdercoated, Chevy, GMC, Kit

Part Number: QA1-52626-S700

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

2003 Parts and Accessories