2003 GMC SIERRA-1500-HD Parts and Accessories

Engine Coolant Crossovers, LS Steam Vent Kits, Aluminum, Black Anodized, Chevy, LS, Kit

Part Number: EAR-LS0041ERL

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Shock, 4600 Series, Monotube, Chevy, GMC, Pickup, Rear, Each

Part Number: BSN-24-060820

4.83 out of 5 stars ( 18 )

Estimated Ship Date: Tomorrow

Fuel Injectors, 700 cc/min., 67 lb/hr., Chevy, Small Block LS, Set of 8

Part Number: DWK-16ULS07008

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Mass Air Meter, Plastic, Black, Buick, Cadillac, Chevy, GMC, Pickup, SUV, Each

Part Number: JET-69101

4.33 out of 5 stars ( 21 )

Estimated Ship Date: Tomorrow

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Alternators and Generators, XS Volt, GM AD230 Case Style, 165 amps, Serpentine Pulley, 6-groove, Cadillac, Chevy, GMC, Small Block LS, Each

Part Number: PWM-482478

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Headers, Cat4ward, Stainless Steel, Natural, Cadillac, Chevy, GMC, Hummer, SUV, Pickup, 6.0L, Pair

Part Number: JBA-1850S-3

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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• Mfr. Rebate

$75.00 Mail-In Rebate

Price after Manufacturer Rebate: $550.45

Rebate Expires: 9/30/2025

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Get $75 back after rebate on qualifying JBA Headers! Go to https://pertronixbrands.com/blogs/rebates for a complete list of products and to redeem offer. Valid on purchases made between 7/1/25 and 9/30/25. Rebate submission must be postmarked by 10/31/25. Limit one rebate per household. Allow 3-4 weeks for processing. Rebate for end consumer only. Valid in the USA, Canada and Puerto Rico. Show Less

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Wheel, 85 Soft 8, Steel, Gloss Black, 16 x 7 in., 4 in. Backspace, Each

Part Number: VSW-85H6781NS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Harmonic Balancer, OEM Replacement, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab, 4.8, 5.3, 6.0, 6.2L

Part Number: PBB-PB1190N

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Alternators and Generators, Elite Series Alternators, 12 V, 250 amps, Black, Serpentine Pulley, Buick, Chevy, GMC, Hummer, Olds, Pontiac, Each

Part Number: MEH-8206250B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Gear Lube, 80W90, Limited Slip Additive, 3 qt., Each

Part Number: YGA-15003

4.95 out of 5 stars ( 20 )

Cannot be shipped Internationally

• Restricted

Spark Plug Wires, Extreme 9000 Ceramic, Spiral Core, 8mm, Black, White Ceramic 180 Degree Boots, GM, 4.8, 5.3, 6.0L, Set

Part Number: ACC-9059C

3.89 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Fuel Injectors, 550 cc/min., 52 lb/hr., Chevy, Small Block LS, Set of 8

Part Number: DWK-16ULS05508

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Flywheel Cast Iron 168 tooth GM Truck LS Gen III, 6 Bolt

Part Number: SXR-NFW1050

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Wire, 409 Race-Fit Pro, Spiral Core, 10.4mm, Blue, Coil Pack, Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Saab

Part Number: TAY-79614

4.89 out of 5 stars ( 18 )

Estimated Ship Date: Tomorrow

Nitrous Oxide System, 4-Bolt Throttle Body, 90mm Plate, Wet, +400 hp, 10 lb. Bottle, Chevy, LS, Kit

Part Number: NEX-20934-10

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Shock Absorber, B8 5160 Series, Monotube, Remote Reservoir, Rear, 0-2 in. Lift, Chevy, GMC, Each

Part Number: BSN-25-311891

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Air Intake Kit, Cold Air Intake System, Aluminum Tube, Polished, Black Filter, Cadillac, Chevy, GMC, Kit

Part Number: SPE-9900K

4.53 out of 5 stars ( 36 )

Estimated Ship Date: Tomorrow

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Ignition Coil, Street Fire, Coil Pack, Black, Buick, Chevy, GMC, Set of 8

Part Number: MSD-55108

4.41 out of 5 stars ( 29 )

Estimated Ship Date: Tomorrow

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Shocks and Struts, 2.0 Performance Series IFP Smooth Body Shocks, Stock/Lifted Ride Height, Eyelet Mounts, Rear, Chevrolet, GMC, Hummer, Each

Part Number: FRS-980-24-664

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Computer Tuner, Cadillac, Chevy, GMC/Pontiac, Passenger Car/Pickup/SUV, 4.8/5.0/5.3/5.7/6.0/7.4/8.1L, Each

Part Number: JET-14005

3.55 out of 5 stars ( 20 )

Estimated Ship Date: Tomorrow

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Engine Prelubers, Prelube Engine Oiler Tank Kits, Adapters, Avanti, Buick, Cadillac, Chevy, Chrysler, Dodge, Ford, GMC, Hummer, Mercury, Saab, Kit

Part Number: MEL-MPL-201

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Rod Bearings, XP-Series, Tri-Metal, .010 in. Crankshaft Undersize, Narrowed, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807XPN010

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

Spark Plug Wires, Extreme 9000 Ceramic, Spiral Core, 8mm, Black, Black Ceramic 180 Degree Boots, GM, 4.8, 5.3, 6.0L, Set

Part Number: ACC-9059CK

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Transmission Dipstick, Braided Stainless Steel, Natural, Firewall Mount, 4L80E, Each

Part Number: LOK-TD34L80FM

4.36 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Water Neck, Aluminum, Black Anodized, Swivel, 60 Degree, Chevrolet, LS, Each

Part Number: MRG-2670BK

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow