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Choose your Engine for your 2003 GMC Sierra 1500 HD


Showing 1 - 10 of 70 products
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Air Lift
  • LEAF SPRING LEVELING KIT.
  • Will Not Fit w/Quadrasteer
  • LoadLifter 5000 Leaf Spring Leveling Kit.
  • Product Attributes:
    • No Drill: Yes
  • Features:
    • Fully adjustable air springs level your vehicle when towing or hauling a heavy load for a safe comfortable ride
    • Eliminate sag and bottoming out
    • Rugged durable components including air springs and all hardware
    • Easy to install with fully-illustrated installation manual
    • Up to 5,000 lbs. of load-leveling capacity (Note: Do not exceed vehicle's GVWR)
    • Uses 2-Ply Fabric Reinforced Air Springs
    • Limited Lifetime Warranty
    • Will Not Fit w/Quadrasteer
  • Air Lift adjustable air helper springs level your load, and give your truck, van, or SUV a safer, more comfortable ride. Air springs are easy to install between your existing springs and the vehicle frame. Just add air when towing or hauling a heavy load, and reduce air pressure when unloaded, they are fully adjustable for a great ride. Air Lift air springs eliminate sag, sway, and bottoming out. They are made with rugged, durable components for long, reliable service. LoadLifter 5000 kits are Air Lift's heaviest-rated kits for hauling or towing heavy loads. They have up to 5,000 pounds of leveling capacity, right up to the manufacturer's recommended Gross Vehicle Weight Rating, and are air adjustable from 5 to 100 PSI. LoadLifter 5000 kits fit such popular vehicles as ton and one-ton pickup trucks, many Class A, B & C motor homes, and commercial trucks and other severe uses. They also come standard with a limited lifetime warranty and an exclusive 60 day ride satisfaction guarantee.

Additional Fitment Information:
Vehicle Position
2003 - GMC Sierra 1500 HD Rear

Wagner Lighting
  • Small Standard Mini Lamp
  • Miniature Lamp - Boxed Compare to Original;Glass:Clear (T3-1/4),# of Filaments:1,Watts:3.78 (0.16 cp),Base:Wedge (W2.1x9.5d),OE Type
  • Wagner Standard 194 Light Bulb - Multi-Purpose (Box of 10)
  • Product Attributes:
    • Bulb Color: Clear
    • Filament Type: C-2f
    • Average Rated Life: 2500
    • Voltage: 14.000
    • Wattage: 3.780
    • Amperage Rating: 0.270
    • Brightness: 2.000
    • Bulb Base Type: Wedge
    • Bulb Type: T-3 1/4 Bulb 13/32 (10mm) Dia
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD

Wagner Lighting
  • Small Standard Mini Lamp
  • OE Type; Miniature Lamp - Boxed
  • Wagner Standard 194 Light Bulb - Multi-Purpose (Box of 10)
  • Product Attributes:
    • Bulb Color: Clear
    • Filament Type: C-2f
    • Average Rated Life: 2500
    • Voltage: 14.000
    • Wattage: 3.780
    • Amperage Rating: 0.270
    • Brightness: 2.000
    • Bulb Base Type: Wedge
    • Bulb Type: T-3 1/4 Bulb 13/32 (10mm) Dia
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
194, 34351-657-921, 90981-00194, 96942-4Z000, C2AZ13466C

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD

Wagner Lighting
  • Small Standard Mini Lamp
  • OE Type; Miniature Lamp - Boxed
  • Wagner Standard 194 Light Bulb - Multi-Purpose (Box of 10)
  • Product Attributes:
    • Bulb Color: Clear
    • Filament Type: C-2f
    • Average Rated Life: 2500
    • Voltage: 14.000
    • Wattage: 3.780
    • Amperage Rating: 0.270
    • Brightness: 2.000
    • Bulb Base Type: Wedge
    • Bulb Type: T-3 1/4 Bulb 13/32 (10mm) Dia
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Position
2003 - GMC Sierra 1500 HD Front

Wagner Lighting
  • Small Standard Mini Lamp
  • OE Type; Miniature Lamp - Boxed
  • Wagner Standard 194 Light Bulb - Multi-Purpose (Box of 10)
  • Product Attributes:
    • Bulb Color: Clear
    • Filament Type: C-2f
    • Average Rated Life: 2500
    • Voltage: 14.000
    • Wattage: 3.780
    • Amperage Rating: 0.270
    • Brightness: 2.000
    • Bulb Base Type: Wedge
    • Bulb Type: T-3 1/4 Bulb 13/32 (10mm) Dia
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Position
2003 - GMC Sierra 1500 HD Rear

Wagner Lighting
  • Small Standard Mini Lamp
  • OE Type; Miniature Lamp - Boxed
  • Wagner Standard 194 Light Bulb - Multi-Purpose (Box of 10)
  • Product Attributes:
    • Bulb Color: Clear
    • Filament Type: C-2f
    • Average Rated Life: 2500
    • Voltage: 14.000
    • Wattage: 3.780
    • Amperage Rating: 0.270
    • Brightness: 2.000
    • Bulb Base Type: Wedge
    • Bulb Type: T-3 1/4 Bulb 13/32 (10mm) Dia
  • Delivering long-lasting dependability, count on Wagner® miniature bulbs for all your interior and exterior automotive lighting needs. Manufactured with a continuous coil that resists shock and vibration, you’ll appreciate the long life and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD

Four Seasons
  • Denso 10S20F Compressor
  • with 10S17F Compressor New with Clutch May Require use of OE Manifold. DeSlugger Recommended to Eliminate Compressor Damage on Vehicles with Low Mount Compressor
  • Denso 10S20F Compressor
  • New Compressor
  • Product Attributes:
    • California Proposition 65: Warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm.
    • Coil Clock: 1 Wire Lead
    • New or Reman: New
    • Mount Distance IN: 0.66
    • Mount Distance MM: 16.51
    • Coil Voltage: 12
    • Belt Type: Serpentine
    • Mount Type: Tangent Mount
    • O-Ring A Quantity: 1
    • Refrigerant Type: R134a
    • Clutch Included: Included
    • Groove: 4
    • Discharge Port Type: Sealing Washer
    • Model: 10s20f
    • Pulley Diameter IN: 4.250
    • Switch Type: N/a
    • Suction Port Type: Sealing Washer
    • Electronic Control Valve: No
    • Mounting Hardware?: Not Included
    • O-Ring B Number/Desc: 24402 / Slimline Washer
    • O-Ring B Quantity: 1
    • Part Note: May Require Use Of Oe Manifold; Deslugger 36141 Recommended To Eliminate Compressor Damage On Vehicles With Low Mount Compressor
    • O-Ring A Number/Desc: 24404 / Slimline Washer
    • Pulley Diameter MM: 107.95
  • Features:
    • Manufactured Compressors are individually vacuum,pressure, and Helium Mass Spectrometer tested to ensure no leaks
    • Manufactured Compressors are validated for the equivalent of 100,000 miles
    • Manufactured Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
    • Manufactured Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
    • Manufactured Compressors meet or exceed OE specifications
  • Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Four Seasons.

This Part Fits the Following OEM/Substitute Numbers:
031867, 032057, 034279N, 034279ND, 034810N, 034810ND, 035126N, 035126ND, 035127N, 035127ND, 0610081, 10000631, 10364873, 10366545, 11178377, 1420940, 1421127AFT, 1421127NEW...VIEW MORE

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD

Raybestos
  • OE Equipped with Ceramic Pads
  • Service Grade; Ceramic
  • Product Attributes:
    • California Proposition 65: Warning: This Product Can Expose You To Chemicals Including Silica, Which Is Known To The State Of California To Cause Cancer, And Lead, Which Is Known To The State Of California To Cause Birth Defects Or Other Reproductive Harm. For More Information Go T
    • Inner Pad Width: 8.510
    • Outer Pad Height: 2.640
    • Outer Pad Width: 8.510
    • Inner Pad Height: 2.640
    • Inner Pad Overall Thickness: 0.735
    • Friction Material Slot Type: Slotted
    • Friction Material Composition: Ceramic
    • Outer Pad Overall Thickness: 0.735
  • They are sold as a set and only quantity 1 is required for both wheels

This Part Fits the Following OEM/Substitute Numbers:
0784.20, 0784.80, 102.07840, 103.07840, 103.14110, 104.07840, 105.07840, 106.07840, 108.07840, 14-784-12, 15886468, 15886469, 16-784, 16-784-12, 17-784, 17784, 18026219, 18042334...VIEW MORE

Additional Fitment Information:
Vehicle Position
2003 - GMC Sierra 1500 HD Front

Rough Country
  • M14x1.5; Crome; Lug Nut Set; Includes Socket Key; Set Of 24; Open End
  • Wheel Installation Kit; M14x1.5; Crome; Lug Nut Set; Includes Socket Key; Set Of 24; Open End;
  • Wheel Installation Kit
  • Product Attributes:
    • WARNING CA Proposition 65: No
  • Features:
    • Bulge Acorn Type Lug Nuts
    • Thread Size M14x1.5
    • Includes Socket Key For Easy Installation And Removal
    • Cold Forged Carbon Steel With Enhanced Rigidity
    • Long Lasting Finish
    • Exceeds OEM Standard In Material/Strength/Hardness
    • Corrosion Resistant
    • Easy To Install
  • Secure your new wheels with Rough Countrys Bulge Acorn Style Lug Nuts. These cold-forged lug nuts are plated with a beautiful chrome finish for a long lifespan of corrosion resistance and good looks. Acorn bulge nuts provide over 6% more seating surface area than a standard acorn lug nut. These premium lug nuts are the perfect choice for securing aftermarket wheels, and far exceed OEM strength and hardness. Each lug nut set includes a socket key for easy installation or removal. Choose between black or chrome finish for the perfect complement to your build!

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD

Rough Country
  • M14x1.5; Crome; Lug Nut Set; Includes Socket Key; Set Of 32; Open End
  • Wheel Installation Kit; M14x1.5; Crome; Lug Nut Set; Includes Socket Key; Set Of 32; Open End;
  • Wheel Installation Kit
  • Product Attributes:
    • WARNING CA Proposition 65: No
  • Features:
    • Bulge Acorn Type Lug Nuts
    • Thread Size M14x1.5
    • Includes Socket Key For Easy Installation And Removal
    • Cold Forged Carbon Steel With Enhanced Rigidity
    • Long Lasting Finish
    • Exceeds OEM Standard In Material/Strength/Hardness
    • Corrosion Resistant
    • Easy To Install
  • Secure your new wheels with Rough Countrys Bulge Acorn Style Lug Nuts. These cold-forged lug nuts are plated with a beautiful chrome finish for a long lifespan of corrosion resistance and good looks. Acorn bulge nuts provide over 6% more seating surface area than a standard acorn lug nut. These premium lug nuts are the perfect choice for securing aftermarket wheels, and far exceed OEM strength and hardness. Each lug nut set includes a socket key for easy installation or removal. Choose between black or chrome finish for the perfect complement to your build!

Additional Fitment Information:
Vehicle
2003 - GMC Sierra 1500 HD
Showing 1 - 10 of 70 products

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