Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Order special instructions

Subtotal

$0.00 USD

Taxes and shipping calculated at checkout
  • HOME
  • DURAMAX
    • LB7 2001-2004
    • LLY 2004.5-2005
    • LLY/LBZ 2006-2007
    • LMM 2007.5-2010
    • LML 2011-2016
    • L5P 2017-2021
    • LM2 2019-2021
    • 2016-2020 CO 2.8L
    • Advanced Lifts
    • All Duramax Products
  • FORD
    • Ford 7.3L 1999-2003
    • Ford 6.0L 2003.5-2007
      • Turbo
    • Ford 6.4L 2008-2010
    • Ford 6.7L 2011-2016
    • Ford 6.7L 2017-2023
    • Ford 3.0L 2018-2020
    • Advanced Lifts
    • All Ford Products
  • RAM
    • Ram 5.9L 1998-2002
    • Ram 5.9L 2003-2004
    • Ram 5.9L 2004.5-2007
    • Ram 6.7L 2007.5-2022
    • Ram 3.0L EcoDiesel
    • Advanced Lifts
    • All Ram Products
  • CATEGORY
    • Air Intake Systems & Filters
      • Air Intake Kits
      • Cleaning Kits
      • Intake Components
      • Replacement Filters
    • Automotive Liquids & Chemicals
    • Drivetrain
      • Gear Sets
    • Engine Cooling System
      • Coolant Bypass Kits
      • Coolant Filters
      • Cooling Kits & Components
      • Coolant Reservoirs
      • Oil Cooler Kits & Components
    • Engine & Components
      • Engine Gaskets
      • Headers & Manifolds
      • Turbochargers
    • Exhaust
      • DPF Back
      • Exhaust Gaskets
      • Exhaust Mufflers
      • Exhaust Piping
      • Exhaust Systems
      • Exhaust Tips
    • Fuel System & Delivery
      • FASS
      • Fuel Components
      • Fuel Delivery
      • Fuel Injectors
      • Fuel Tanks
    • Lighting
      • Light Bars
      • Fog Lights
    • Performance Parts & Accessories
      • Brakes, Rotors, & Pads
      • Brakes-Performance
      • Brakes-Racing
      • Brake System
      • Programmers & Tuners
    • Shop & Tools
      • Fabrication
    • Style
      • Bumpers
      • Bumpers- Steel
      • Grilles
      • Roof
      • Roof Rack
      • Running Boards
      • Steps
    • Suspension
      • Coilovers
      • Coil Springs & Components
      • Lift Kits & Components
      • Shocks, Struts, & Components
      • Suspension Components
      • Suspension Leveling Kits
      • Suspension Lowering Kits
    • Tires
    • Transmission
      • Transmission Components
      • Transmission Coolers
    • Wheels
      • Center Caps
      • Cast
      • Forged
      • Wheel Components & Accessories
  • SHOP BY BRAND
    • Complete Product Line
    • S&B Filters
      • Body Mounts
      • Cold Air Intakes
      • Replacement Filters
      • Tanks
    • 808 Diesel Performance
Log in
  • Facebook
  • Instagram
808 Diesel Performance
  • HOME
  • DURAMAX
    • LB7 2001-2004
    • LLY 2004.5-2005
    • LLY/LBZ 2006-2007
    • LMM 2007.5-2010
    • LML 2011-2016
    • L5P 2017-2021
    • LM2 2019-2021
    • 2016-2020 CO 2.8L
    • Advanced Lifts
    • All Duramax Products
  • FORD
    • Ford 7.3L 1999-2003
    • Ford 6.0L 2003.5-2007
      • Turbo
    • Ford 6.4L 2008-2010
    • Ford 6.7L 2011-2016
    • Ford 6.7L 2017-2023
    • Ford 3.0L 2018-2020
    • Advanced Lifts
    • All Ford Products
  • RAM
    • Ram 5.9L 1998-2002
    • Ram 5.9L 2003-2004
    • Ram 5.9L 2004.5-2007
    • Ram 6.7L 2007.5-2022
    • Ram 3.0L EcoDiesel
    • Advanced Lifts
    • All Ram Products
  • CATEGORY
    • Air Intake Systems & Filters
      • Air Intake Kits
      • Cleaning Kits
      • Intake Components
      • Replacement Filters
    • Automotive Liquids & Chemicals
    • Drivetrain
      • Gear Sets
    • Engine Cooling System
      • Coolant Bypass Kits
      • Coolant Filters
      • Cooling Kits & Components
      • Coolant Reservoirs
      • Oil Cooler Kits & Components
    • Engine & Components
      • Engine Gaskets
      • Headers & Manifolds
      • Turbochargers
    • Exhaust
      • DPF Back
      • Exhaust Gaskets
      • Exhaust Mufflers
      • Exhaust Piping
      • Exhaust Systems
      • Exhaust Tips
    • Fuel System & Delivery
      • FASS
      • Fuel Components
      • Fuel Delivery
      • Fuel Injectors
      • Fuel Tanks
    • Lighting
      • Light Bars
      • Fog Lights
    • Performance Parts & Accessories
      • Brakes, Rotors, & Pads
      • Brakes-Performance
      • Brakes-Racing
      • Brake System
      • Programmers & Tuners
    • Shop & Tools
      • Fabrication
    • Style
      • Bumpers
      • Bumpers- Steel
      • Grilles
      • Roof
      • Roof Rack
      • Running Boards
      • Steps
    • Suspension
      • Coilovers
      • Coil Springs & Components
      • Lift Kits & Components
      • Shocks, Struts, & Components
      • Suspension Components
      • Suspension Leveling Kits
      • Suspension Lowering Kits
    • Tires
    • Transmission
      • Transmission Components
      • Transmission Coolers
    • Wheels
      • Center Caps
      • Cast
      • Forged
      • Wheel Components & Accessories
  • SHOP BY BRAND
    • Complete Product Line
    • S&B Filters
      • Body Mounts
      • Cold Air Intakes
      • Replacement Filters
      • Tanks
    • 808 Diesel Performance
Log in Cart
Remove all

13811 products

Filter and sort Filter

Filter and sort

Filter

13811 products

Remove all
Remove all

13811 products

  • Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

    Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

    Sale

    Cometic GM LS1 5.3L/5.7L/6.0L .030 inch MLS Exhaust Gaskets (Pair)

    Vendor:
    Cometic Gasket
    Regular price $39.35 USD
    Regular price $41.76 USD Sale price $39.35 USD
    Unit price /  per 
    Sale
  • Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket

    Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket

    Sale

    Cometic GM LS1 SB 3.910 inch Bore .040 inch MLS Headgasket

    Vendor:
    Cometic Gasket
    Regular price $92.09 USD
    Regular price $97.72 USD Sale price $92.09 USD
    Unit price /  per 
    Sale
  • Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS Headgasket

    Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS Headgasket

    Sale

    Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS Headgasket

    Vendor:
    Cometic Gasket
    Regular price $92.09 USD
    Regular price $97.72 USD Sale price $92.09 USD
    Unit price /  per 
    Sale
  • Cometic GM LSX RHS 4.15in Bore .052 in MLX 5-Layer Head Gasket

    Cometic GM LSX RHS 4.15in Bore .052 in MLX 5-Layer Head Gasket

    Sold out

    Cometic GM LSX RHS 4.15in Bore .052 in MLX 5-Layer Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $118.42 USD
    Regular price $125.65 USD Sale price $118.42 USD
    Unit price /  per 
    Sold out
  • Cometic Harley-Davidson 3.875in 1550 Twin Cam .060 Head Gasket

    Cometic Harley-Davidson 3.875in 1550 Twin Cam .060 Head Gasket

    Cometic Harley-Davidson 3.875in 1550 Twin Cam .060 Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $84.18 USD
    Regular price Sale price $84.18 USD
    Unit price /  per 
  • Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket

    Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket

    Sold out

    Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $56.67 USD
    Regular price Sale price $56.67 USD
    Unit price /  per 
    Sold out
  • Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket/.014 RC

    Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket/.014 RC

    Cometic Harley-Davidson Milwaukee 8 4.250in .030 Head Gasket/.014 RC

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $75.58 USD
    Regular price Sale price $75.58 USD
    Unit price /  per 
  • Cometic Harley-Davidson Milwaukee 8 4.320 .030 Head Gasket

    Cometic Harley-Davidson Milwaukee 8 4.320 .030 Head Gasket

    Cometic Harley-Davidson Milwaukee 8 4.320 .030 Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $56.67 USD
    Regular price Sale price $56.67 USD
    Unit price /  per 
  • Cometic Harley-Davidson T/C 88/96 Cam Service Fueling Kit 2055

    Cometic Harley-Davidson T/C 88/96 Cam Service Fueling Kit 2055

    Cometic Harley-Davidson T/C 88/96 Cam Service Fueling Kit 2055

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $52.10 USD
    Regular price Sale price $52.10 USD
    Unit price /  per 
  • Cometic Harley-Davidson T/C 88/96 Cam Service w/ Rocker Box Kit

    Cometic Harley-Davidson T/C 88/96 Cam Service w/ Rocker Box Kit

    Sold out

    Cometic Harley-Davidson T/C 88/96 Cam Service w/ Rocker Box Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $85.66 USD
    Regular price Sale price $85.66 USD
    Unit price /  per 
    Sold out
  • Cometic Harley-Davidson Twin Cam .030 MLS Head Gasket

    Cometic Harley-Davidson Twin Cam .030 MLS Head Gasket

    Sold out

    Cometic Harley-Davidson Twin Cam .030 MLS Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $56.67 USD
    Regular price Sale price $56.67 USD
    Unit price /  per 
    Sold out
  • Cometic Harley-Davidson Twin Cam .040 S/S Head Gasket

    Cometic Harley-Davidson Twin Cam .040 S/S Head Gasket

    Cometic Harley-Davidson Twin Cam .040 S/S Head Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $56.67 USD
    Regular price Sale price $56.67 USD
    Unit price /  per 
  • Cometic Harley-Davidson Twin Cam 88, 96 Cam Service Kit

    Cometic Harley-Davidson Twin Cam 88, 96 Cam Service Kit

    Sold out

    Cometic Harley-Davidson Twin Cam 88, 96 Cam Service Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $68.24 USD
    Regular price Sale price $68.24 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 03-Up Twin Cam 1550 T/E w/Hat Valve Seal.040inH/G

    Cometic Hd 03-Up Twin Cam 1550 T/E w/Hat Valve Seal.040inH/G

    Sold out

    Cometic Hd 03-Up Twin Cam 1550 T/E w/Hat Valve Seal.040inH/G

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $140.44 USD
    Regular price Sale price $140.44 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 03-Up Twin Cam Std Bore T/E w/ New Hat Valve Seal

    Cometic Hd 03-Up Twin Cam Std Bore T/E w/ New Hat Valve Seal

    Cometic Hd 03-Up Twin Cam Std Bore T/E w/ New Hat Valve Seal

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $140.44 USD
    Regular price Sale price $140.44 USD
    Unit price /  per 
  • Cometic Hd 06-17 Dyna,07-17 Softail .060in Afm Primary Gasket

    Cometic Hd 06-17 Dyna,07-17 Softail .060in Afm Primary Gasket

    Sold out

    Cometic Hd 06-17 Dyna,07-17 Softail .060in Afm Primary Gasket

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $42.49 USD
    Regular price Sale price $42.49 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 110inCi Top End 4in Bore .040in H/G, .530inGuide Seals

    Cometic Hd 110inCi Top End 4in Bore .040in H/G, .530inGuide Seals

    Sold out

    Cometic Hd 110inCi Top End 4in Bore .040in H/G, .530inGuide Seals

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $143.61 USD
    Regular price Sale price $143.61 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 1992-98 Big Twin  Complete Motor Gasket Kit

    Cometic Hd 1992-98 Big Twin Complete Motor Gasket Kit

    Sold out

    Cometic Hd 1992-98 Big Twin Complete Motor Gasket Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $336.72 USD
    Regular price Sale price $336.72 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 1992-98 Big Twin  inMotor OnlyinGasket Kit

    Cometic Hd 1992-98 Big Twin inMotor OnlyinGasket Kit

    Sold out

    Cometic Hd 1992-98 Big Twin inMotor OnlyinGasket Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $150.32 USD
    Regular price Sale price $150.32 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 1999-17 Twin Cam Lifter Cvr Gasket,.031inFiber 10Pk

    Cometic Hd 1999-17 Twin Cam Lifter Cvr Gasket,.031inFiber 10Pk

    Cometic Hd 1999-17 Twin Cam Lifter Cvr Gasket,.031inFiber 10Pk

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $8.57 USD
    Regular price Sale price $8.57 USD
    Unit price /  per 
  • Cometic Hd 2004-06 Est Sportster Comp.Motor Rebuild

    Cometic Hd 2004-06 Est Sportster Comp.Motor Rebuild

    Sold out

    Cometic Hd 2004-06 Est Sportster Comp.Motor Rebuild

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $189.91 USD
    Regular price Sale price $189.91 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 2004-06 Sportsters  Rocker Box Rebuild Kit

    Cometic Hd 2004-06 Sportsters Rocker Box Rebuild Kit

    Cometic Hd 2004-06 Sportsters Rocker Box Rebuild Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $60.17 USD
    Regular price Sale price $60.17 USD
    Unit price /  per 
  • Cometic Hd 2006- Dyna Twin Cam Trans. Rebuild Kit

    Cometic Hd 2006- Dyna Twin Cam Trans. Rebuild Kit

    Sold out

    Cometic Hd 2006- Dyna Twin Cam Trans. Rebuild Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $68.88 USD
    Regular price Sale price $68.88 USD
    Unit price /  per 
    Sold out
  • Cometic Hd 2006-17 Dyna, 07-17 Softail Complete Primary Rebuild Kit

    Cometic Hd 2006-17 Dyna, 07-17 Softail Complete Primary Rebuild Kit

    Cometic Hd 2006-17 Dyna, 07-17 Softail Complete Primary Rebuild Kit

    Vendor:
    Cometic Gasket
    No reviews
    Regular price $114.62 USD
    Regular price Sale price $114.62 USD
    Unit price /  per 
  • 1
  • …
  • 128
  • 129
  • 130
  • 131
  • 132
  • …
  • 576

Our Facility

  • Contact Us
  • Location
  • Hours
  • Shop Services
  • Careers

Installation

Install for all parts ordered: Please call or email to make an appointment.

808-348-4281

tech@808diesel.com

Join our email list

  • Facebook
  • Instagram
© 2026, 808 Diesel Performance Powered by Shopify
  • Refund policy
  • Privacy policy
  • Terms of service
  • Shipping policy
  • Choosing a selection results in a full page refresh.
  • Opens in a new window.