2003 CADILLAC | Summit Racing

Earl's Performance Cylinder Head Bolt Kits HBS-001ERL

Cylinder Head Bolts, Chromoly, Hex Head, Chevrolet LS, 1997-03, Kit

Part Number: EAR-HBS-001ERL

2.6 out of 5 stars ( 5 )

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Dorman Severe Heavy-Duty Coil Springs 929-930

Severe Heavy Duty Coil Spring Upgrade - 70 Percent Increased Load Handling

Part Number: RNB-929-930

5.0 out of 5 stars ( 1 )

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Melling Oil Pumps M295HV-324S

Melling Oil Pumps M295HV-324S

Engine Oil Pump, Stock Replacement Oil P

Part Number: MEL-M295HV-324S

Not Yet Reviewed

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ACL Performance Race Series Rod Bearing Sets 8B663HC-010

Rod Bearings, Race Series, CT-1 Coated, Tri-Metal, .010 in., .25mm Crankshaft Undersize, Chevrolet, Small Block, LS, Set of 8

Part Number: PEB-8B663HC-010

Not Yet Reviewed

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OE Wheels Replacement Wheels 20x9

Wheel, Replacement, 20 in. x 9.00 in., Aluminum, Satin Black, 6 x 139.70mm Bolt Circle, 6.22 in. Backspacing, Cadillac, Chevrolet, GMC, Each

Part Number: OWH-9489812

Not Yet Reviewed

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Cometic MLS Head Gaskets C5477-060

Head Gasket, MLS, Multi-layer Stainless Steel, 4.000 in. Bore, 0.060 in. Compressed Thickness, Chevrolet, LS, Each

Part Number: CGT-C5477-060

Not Yet Reviewed

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PowerStop Z17 Evolution Plus GEOMET Coated Brake Kits CRK2009

Brake Rotor and Pad Combos, Z17 Evolution Geomet Coated, Solid Surface, Ceramic Pads, Z17, Front, Cadillac, Chevy, GMC, Kit

Part Number: PWR-CRK2009

5.0 out of 5 stars ( 1 )

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ICT Billet Alternator Brackets 551136-3

Alternator Brackets, LS Truck Alternator Bracket, High Mount, Kit

Part Number: ICB-551136-3

Not Yet Reviewed

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Silv-O-Lite Hypereutectic Pistons 3472HC.STD

Pistons, Hypereutectic, Dish, 96.01mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, Set of 8

Part Number: UEM-3472HC-STD

Not Yet Reviewed

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Pacer Performance Flexy Flares Fender Flares 52-154

Fender Flare, Flexy Flare, Front or Rear, Rubber, Black, 2.500 in. Width, Standard-duty 25 ft. Roll, Each

Part Number: PPP-52-154

Not Yet Reviewed

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Gabriel Ultra ReadyMount Struts G57051

Strut Assembly, Ultra ReadyMount, Twin-Tube, Gas Charged, Front, Buick, Cadillac, Oldsmobile, Pontiac, Each

Part Number: GAB-G57051

5.0 out of 5 stars ( 4 )

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Airaid PowerAid TBS Throttle Body Spacers 200-512-1

Throttle Body Spacer, Billet Aluminum, Black Anodized, 1 in., Chevy, GMC, Each

Part Number: AID-200-512-1

4.23 out of 5 stars ( 35 )

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Hankook DynaPro AT2 RF11 Tires 265/70-17

265/70R17 115S HAN DYNAPRO AT2 RF11 BW

Part Number: HKT-1026491

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

MagnaFlow Universal Catalytic Converters 99209HM

Catalytic Converter, Heavy Metal, Stainless Steel, Each

Part Number: MPE-99209HM

5.0 out of 5 stars ( 2 )

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Earl's Performance Adjustable Coolant Crossover Tubes LS0035ERL

Water Pump Crossover, Billet Aluminum, -12 AN Female Inlets, -16 AN Male Outlet, Black Anodized, Adjustable, Each

Part Number: EAR-LS0035ERL

5.0 out of 5 stars ( 1 )

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Sealed Power MA Series Main Bearings 7298MA 10

Main Bearings, 0.010 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Chevy, GMC, Pontiac, 4.8L, 5.3L, 5.7L, 6.0L, Set of 5

Part Number: SLP-7298MA10

3.0 out of 5 stars ( 2 )

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ACDelco Specialty Shocks and Struts 88946604

Shock/Strut, Specialty, Eyelet, Eyelet, Kit

Part Number: ADO-504-517

5.0 out of 5 stars ( 1 )

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Cometic MLS Head Gaskets C5477-066

Head Gasket, MLS, Multi-layer Stainless Steel, 4.000 in. Bore, 0.066 in. Compressed Thickness, Chevrolet, LS, Each

Part Number: CGT-C5477-066

Not Yet Reviewed

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Taylor 409 Pro Race Spiro-Wound 10.4mm Spark Plug Wires 79605

Spark Plug Wires, 409 Pro Race, Spiro-Wound, 10.4mm, Blue, Stock Boots, Chevy, GMC, 4.8/5.3/6.0L, V8, Set

Part Number: TAY-79605

4.85 out of 5 stars ( 27 )

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Motive Gear Light-Duty Axle Shafts 12479285

Axle, Direct Fit, Rear, 1541 Carbon Steel, 30-Spline, Chevrolet, GMC, Pickup, SUV, Each

Part Number: MGR-12479285

5.0 out of 5 stars ( 2 )

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16 Inch 1,400 CFM Four Seasons Electric Fan Kit 36898

Electric Fan, 16 in. Diameter, Reversible, 1,400 cfm, Black, Plastic, Each

Part Number: FSS-36898

4.5 out of 5 stars ( 2 )

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WeatherTech FloorLiner HP Floor Mats 440031IM

Floor Mats, FloorLiner HP, Front Seat, Thermoplastic, Black, Cadillac, Chevrolet, GMC, Pair

Part Number: MNA-440031IM

5.0 out of 5 stars ( 1 )

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OE Wheels Replacement Wheels 20x9

Wheel, CV32, CV32, Gloss Black, 20x9, 6-139.7 Bolt Pattern,, 28 Offset, 6.1 Backspace, 78.1 Hubbore

Part Number: OWH-9509781

Not Yet Reviewed

Estimated Ship Date: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

Holley Sniper Fabricated Aluminum Valve Covers 890014B

Valve Covers, Sniper EFI, Fabricated, Aluminum, 2.25 in. Tall, Center Bolt Mount, Black Gloss, No Breather Hole, Hardware, Chevy, LS, 4.8-7.0L, Pair

Part Number: SNE-890014B

1.0 out of 5 stars ( 2 )

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ACDelco Blower Motors 89019320

Blower Motors, Plastic, Black, Wheel, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: ADO-15-81646

Not Yet Reviewed

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2003 CADILLAC Parts and Accessories