1999 GMC K1500 Brands

  1. Key Features:
    • Sportsman 1-Piece Grille Guard
    • Steel
    • Black Finish

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT

    $837.99
  2. Key Features:
    • Sportsman 1-Piece Grille Guard
    • Polished Stainless Steel

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT

    $1,021.16
  3. Key Features:
    • Premier 6 in. Oval Nerf Step bars Cab Length
    • 75 in.
    • Polished Stainless
    • Does Not Include Mount Kit
    • vehicle specific Mount Kit Must Be Purchased Separately

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / Extended 2 Door Cab, Extended 3 Door Cab, Extended Cab

    $454.15
  4. Key Features:
    • Diamondstep Universal Rear Bumper
    • Silver
    • Mount Kit Required

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT

    $272.92
  5. Key Features:
    • Shorty Tuned Length Exhaust Header Kit
    • Chrome
    • CNC-Series Performance
    • CNC Mandrel Bent 1.625 in. Tubing
    • Direct Fit Design
    • Incl. New Gaskets/Hardware

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $499.99
  6. Key Features:
    • Shorty Tuned Length Exhaust Header Kit
    • Silver Ceramic
    • CNC-Series Performance
    • CNC Mandrel Bent 1.625 in. Tubing
    • Direct Fit Design
    • Incl. New Gaskets/Hardware

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $549.99
  7. Key Features:
    • Add-A-Leaf Kit
    • Long Style

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $114.38
  8. Key Features:
    • Block With U-Bolt Kit
    • 4 in. Lift
    • Incl. 2 Cast Iron Riser Blocks
    • 4 U-Bolts
    • 8 Heavy Duty Flat washers
    • 8 Hi-Nuts
    • For IFS

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $121.18
  9. Key Features:
    • Heavy Duty Headache Rack
    • White

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT

    $528.95
  10. Key Features:
    • Heavy Duty Headache Rack
    • Black

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT

    $523.60
    • Gray
    • 2 pc. Front

    Fitment:

    1999 GMC K1500 Extended 2 Door Cab, Extended 3 Door Cab, Extended Cab, Regular Cab / Gray

    • Tan
    • 2 pc. Front

    Fitment:

    1999 GMC K1500 Extended 2 Door Cab, Extended 3 Door Cab, Extended Cab, Regular Cab / Tan

    • Black
    • Universal
    • Center Hump
    • For Use w/o Shifter or Console

    Fitment:

    1999 GMC K1500 Black

  11. B&M Automatic Transmission Filter Extensions are the perfect solution if you want to move your transmission filter into the oil in aftermarket B&M Transmission Pans. They are ideal for racing, towing, off-roading or just everyday driving in hot weather. They allow your transmission to operate at cooler temperatures for improved efficiency and durability! These B&M extensions are crafted from cast aluminum and come with all necessary mounting bolts to fit the valving body.

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

  12. B&M Holeshot Torque Converters were developed to boost the launch power of your engine at a higher RPM. These advanced torque converters will allow you to upgrade your street beast by directly improving acceleration and drivetrain strength. Featuring a furnace brazed turbine, new turbine hub, extra-strength needle type thrust bearings and dual pattern drive lugs on some GM Holeshots!

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $502.95
  13. Replace your stock converters and improve your vehicle's initial acceleration with these high quality B&M Traveler Torque Converters! They are perfect for motor homes, tow vehicles and other heavy-duty applications, and will allow you to boost the acceleration without having to sacrifice normal highway operation. These B&M torque converters will increase stall speed by around 300 rpm, thanks to their intelligent internal engineering. The impeller and turbine fins come fully furnace brazed and are capable of withstanding significantly more torque and horsepower. The converters are all pressure tested, fully balanced – plus, they are backed by a 1 Year Limited Warranty to guarantee your investment!

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $717.95
  14. Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.7L V8 GAS / Offset/Center / 2.50" / 2.50"

    $196.77
  15. Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.7L V8 GAS

  16. JET Stage 1 Computer Chips/Modules will unleash the true high-performance potential of your vehicle's engine and completely remove the dull factory settings! The modules will work to truly optimize your air/fuel ratio, spark timing, transmission tuning and a variety of other parameters for maximized horsepower and torque! They are available in 2 different styles : Stage 1 is designed to work with original stock engines, while Stage 2 is designed to work with modified motors with performance air intakes, headers or exhaust systems already installed. The modules are 50-state legal and are backed by a Lifetime Warranty. Free shipping to all of USA!

    Key Features:
    • Jet Power Control Module Stage 1
    • 50 State Legal

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $249.71
  17. JET Stage 2 Computer Chips/Modules will unleash the true high-performance potential of your vehicle's engine and completely remove the dull factory settings! The modules will work to truly optimize your air/fuel ratio, spark timing, transmission tuning and a variety of other parameters for maximized horsepower and torque! They are available in 2 different styles : Stage 1 is designed to work with original stock engines, while Stage 2 is designed to work with modified motors with performance air intakes, headers or exhaust systems already installed. The modules are 50-state legal and are backed by a Lifetime Warranty. Free shipping to all of USA!

    Key Features:
    • Jet Power Control Module Stage 2
    • 50 State Legal
    • Requires Use Of 91 Octane Fuel/180 Degree Thermostat/Free Flow Exhaust

    Fitment:

    1999 GMC K1500 Sierra SL, Sierra SLE, Sierra SLT / 5.0L V8 GAS, 5.7L V8 GAS

    $257.21