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Harley Seals/Orings and Kits

Harley Seals/Orings and Kits

Harley Seals/Orings and Kits

Harley Bike Engine Seals, O-Rings & Kits at JJ Motorsports

Keep your Harley leak-free with premium Cometic seals and O-rings from JJ Motorsports, featuring Viton valve stem seals, pushrod tube O-rings, and crankcase seals for reliable performance on Twin Cam, Evo, Sportster, and Big Twin engines. These high-temp, oil-resistant components ensure perfect sealing and long-term durability.

Shop Cometic for race-proven quality. Explore related categories such as Harley engine for gaskets and rebuild kits, or Harley for cams and oil pumps to complete your engine refresh.

Top Harley Engine Seals & O-Rings

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • JAMES GASKET Large Pushrod Rubber 17955-48-A

    JAMES GASKET Large Pushrod Rubber 17955-48-A

    JAMES GASKET

    $82.30
    Made in the U.S.A.
    DS174535
    SKU:
    DS174535
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    PRODUCT NAME:
    SEAL
    APPLICATION:
    PUSHROD COVER
    RIDING STYLE:
    STREET
    UNITS:
    100 PACK
    $82.30
    Qty in Cart: 0
    Quantity:
    Price:
    $82.30
    Subtotal:
  • JAMES GASKET Oil Tank Line Seal - XLH 63529-50

    JAMES GASKET Oil Tank Line Seal - XLH 63529-50

    JAMES GASKET

    $24.40
    Made in the U.S.A.
    DS174525
    SKU:
    DS174525
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    APPLICATION:
    OIL LINE
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    10 PACK
    $24.40
    Qty in Cart: 0
    Quantity:
    Price:
    $24.40
    Subtotal:
  • JAMES GASKET Oil Line Feed Tube Rubber Seal 63525-92

    JAMES GASKET Oil Line Feed Tube Rubber Seal 63525-92

    JAMES GASKET

    $26.10
    Made in the U.S.A.
    DS174524
    SKU:
    DS174524
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    APPLICATION:
    OIL LINE
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    10 PACK
    $26.10
    Qty in Cart: 0
    Quantity:
    Price:
    $26.10
    Subtotal:
  • JAMES GASKET Gas Cap O-Ring 61109-85-C

    JAMES GASKET Gas Cap O-Ring 61109-85-C

    JAMES GASKET

    $28.50
    Made in the U.S.A.
    DS174515
    SKU:
    DS174515
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    APPLICATION:
    FUEL CAP
    UNITS:
    10 PACK
    RIDING STYLE:
    STREET
    TYPE:
    OIL
    PRODUCT NAME:
    O-RING
    $28.50
    Qty in Cart: 0
    Quantity:
    Price:
    $28.50
    Subtotal:
  • JAMES GASKET Shifter Shaft Seal 11148

    JAMES GASKET Shifter Shaft Seal 11148

    JAMES GASKET

    $19.81
    JAMES GASKET Shifter Shaft Seal
    DS174489
    SKU:
    DS174489
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    APPLICATION:
    GEAR SHIFT LEVER
    TYPE:
    QUAD SEAL
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    X-RING
    UNITS:
    25 PACK
    $19.81
    Qty in Cart: 0
    Quantity:
    Price:
    $19.81
    Subtotal:
  • JAMES GASKET Starter Shaft Oil Seal - Big Twin 31341-80DL

    JAMES GASKET Starter Shaft Oil Seal - Big Twin 31341-80DL

    JAMES GASKET

    $14.50
    Made in the U.S.A.
    DS174486
    SKU:
    DS174486
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    APPLICATION:
    STARTER SHAFT
    UNITS:
    5 PACK
    $14.50
    Qty in Cart: 0
    Quantity:
    Price:
    $14.50
    Subtotal:
  • JAMES GASKET Kick Shaft Oil Seal - XL/Big Twin 33076-37

    JAMES GASKET Kick Shaft Oil Seal - XL/Big Twin 33076-37

    JAMES GASKET

    $11.80
    Made in the U.S.A.
    DS174478
    SKU:
    DS174478
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    10 PACK
    APPLICATION:
    CRANKSHAFT
    APPLICATION:
    KICKSTARTER
    RIDING STYLE:
    STREET
    $11.80
    Qty in Cart: 0
    Quantity:
    Price:
    $11.80
    Subtotal:
  • JAMES GASKET Shifter Cam Shaft Seal 34036-36

    JAMES GASKET Shifter Cam Shaft Seal 34036-36

    JAMES GASKET

    $11.10
    JAMES GASKET Shifter Cam Shaft Seal
    DS174477
    SKU:
    DS174477
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PRODUCT NAME:
    SEAL
    UNITS:
    10 PACK
    APPLICATION:
    SHIFTER SHAFT
    APPLICATION:
    TRANSMISSION
    RIDING STYLE:
    STREET
    $11.10
    Qty in Cart: 0
    Quantity:
    Price:
    $11.10
    Subtotal:
  • JAMES GASKET Mainshaft Seal - Big Twin 12044-A

    JAMES GASKET Mainshaft Seal - Big Twin 12044-A

    JAMES GASKET

    $14.95
    Made in the U.S.A.
    DS174476
    SKU:
    DS174476
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    APPLICATION:
    TRANSMISSION
    RIDING STYLE:
    STREET
    APPLICATION:
    MAIN DRIVE GEAR
    PRODUCT NAME:
    SEAL
    UNITS:
    EACH
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • JAMES GASKET Main Drive Gear Seal 12013-A

    JAMES GASKET Main Drive Gear Seal 12013-A

    JAMES GASKET

    $9.50
    Top quality main drive gear shaft seals
    DS174475
    SKU:
    DS174475
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    UNITS:
    5 PACK
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    STREET
    APPLICATION:
    MAIN DRIVE GEAR
    APPLICATION:
    MAINSHAFT
    $9.50
    Qty in Cart: 0
    Quantity:
    Price:
    $9.50
    Subtotal:
  • JAMES GASKET Pushrod Cork - Big Twin 37337-36

    JAMES GASKET Pushrod Cork - Big Twin 37337-36

    JAMES GASKET

    $24.40
    Made in the U.S.A.
    DS174474
    SKU:
    DS174474
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    APPLICATION:
    CLUTCH PUSHROD
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    SEAL
    UNITS:
    10 PACK
    $24.40
    Qty in Cart: 0
    Quantity:
    Price:
    $24.40
    Subtotal:
  • JAMES GASKET Oil Seal for Supernut 35211-85-DL

    JAMES GASKET Oil Seal for Supernut 35211-85-DL

    JAMES GASKET

    $24.70
    Replacement oil seal, For 4-Speed Transmission
    DS174458
    SKU:
    DS174458
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    STYLE:
    4-SPEED
    PRODUCT NAME:
    SEAL
    TYPE:
    SUPER NUT
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    $24.70
    Qty in Cart: 0
    Quantity:
    Price:
    $24.70
    Subtotal:
  • JAMES GASKET Trans Mainshaft Seal Kit - 4 Speed 37741-67-K

    JAMES GASKET Trans Mainshaft Seal Kit - 4 Speed 37741-67-K

    JAMES GASKET

    $24.95
    Designed for most 4-, 5- or 6-speed Big Twin transmissions, Made in the U.S.A.
    DS174456
    SKU:
    DS174456
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    APPLICATION:
    TRANSMISSION
    STYLE:
    4-SPEED
    PRODUCT NAME:
    SEAL KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • JAMES GASKET Main Drive Gear Double Lip Seal 37741-82DL

    JAMES GASKET Main Drive Gear Double Lip Seal 37741-82DL

    JAMES GASKET

    $13.95
    Top quality main drive gear shaft seals
    DS174455
    SKU:
    DS174455
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    APPLICATION:
    MAIN DRIVE GEAR
    PRODUCT NAME:
    SEAL
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $13.95
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
  • JAMES GASKET Shift Fork Shaft - Big Twin 34036-80

    JAMES GASKET Shift Fork Shaft - Big Twin 34036-80

    JAMES GASKET

    $7.80
    Quality washers made to last, Made in the U.S.A.
    DS174454
    SKU:
    DS174454
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PRODUCT NAME:
    WASHER
    RIDING STYLE:
    STREET
    TYPE:
    SHIFTER SHAFT
    UNITS:
    10 PACK
    Qty in Cart: 0
    Quantity:
    Price:
    $7.80
    Subtotal:
  • JAMES GASKET Float Bowl O-Ring - XL,F 27889-78

    JAMES GASKET Float Bowl O-Ring - XL,F 27889-78

    JAMES GASKET

    $21.00
    Made in the U.S.A.
    DS174448
    SKU:
    DS174448
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    APPLICATION:
    FLOAT BOWL
    PRODUCT NAME:
    O-RING
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    TYPE:
    OIL
    APPLICATION:
    CARBURETOR
    $21.00
    Qty in Cart: 0
    Quantity:
    Price:
    $21.00
    Subtotal:
  • JAMES GASKET Magneto Plate Oil Seal - XLCH 12023

    JAMES GASKET Magneto Plate Oil Seal - XLCH 12023

    JAMES GASKET

    $22.10
    Made in the U.S.A.
    DS174421
    SKU:
    DS174421
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    PRODUCT NAME:
    SEAL
    APPLICATION:
    MAGNETO MOUNTING
    APPLICATION:
    PUSHROD COVER
    Qty in Cart: 0
    Quantity:
    Price:
    $22.10
    Subtotal:
  • JAMES GASKET Rocker Cover Seal 17475-38

    JAMES GASKET Rocker Cover Seal 17475-38

    JAMES GASKET

    $23.70
    JAMES GASKET Rocker Cover Seal
    DS174414
    SKU:
    DS174414
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    TYPE:
    ROCKER COVER
    PRODUCT NAME:
    SEAL
    UNITS:
    5 PACK
    RIDING STYLE:
    STREET
    $23.70
    Qty in Cart: 0
    Quantity:
    Price:
    $23.70
    Subtotal:
  • JAMES GASKET Tappet Pin Cover O-Ring - XL 11176

    JAMES GASKET Tappet Pin Cover O-Ring - XL 11176

    JAMES GASKET

    $3.00
    Made in the U.S.A.
    DS174398
    SKU:
    DS174398
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    APPLICATION:
    TAPPET GUIDE
    PRODUCT NAME:
    O-RING
    TYPE:
    PIN
    RIDING STYLE:
    STREET
    UNITS:
    25 PACK
    $3.00
    Qty in Cart: 0
    Quantity:
    Price:
    $3.00
    Subtotal:
  • JAMES GASKET Solenoid Mounting Air Control O-Ring 11170

    JAMES GASKET Solenoid Mounting Air Control O-Ring 11170

    JAMES GASKET

    $17.20
    Made in the U.S.A.
    DS174396
    SKU:
    DS174396
    Availability:
    Ships Same Business Day
    Weight:
    0.04 LBS
    PRODUCT NAME:
    O-RING
    UNITS:
    25 PACK
    APPLICATION:
    CRANKSHAFT POSITION SENSOR
    RIDING STYLE:
    STREET
    TYPE:
    OIL
    $17.20
    Qty in Cart: 0
    Quantity:
    Price:
    $17.20
    Subtotal:
  • Total: items /

Adding your products to cart

Buying Guide and FAQs

Buying Guide: Factors to Consider When Choosing Harley Bike Engine Seals, O-Rings, and Kits

  • Compatibility: Ensure seals and O-rings match your Harley's engine type (e.g., Big Twin, Twin Cam, Evo) and model specifics (e.g., FL/FLH, XL, Softail). Use the vehicle selector for year-specific fits (e.g., 1973-1983 for fork seals, 1990-up for drive gear seals) to prevent leaks or fit issues.
  • Type of Use: For high-temperature or oil-exposed areas, opt for Viton seals for superior resistance; standard rebuilds benefit from nitrile or silicone O-rings for reliable sealing in street riding conditions.
  • Components and Upgrades: Select individual seals (e.g., sprocket shaft, shifter lever) or packs (5-10 units); upgrade to fuel-resistant kits for comprehensive overhauls. Focus on materials that won't crack or become brittle.
  • Brand and Quality: Choose James Gasket for top-quality seals like drive gear or solenoid types, or Cometic for premium Viton/silicone/nitrile options. Prioritize USA-made materials for durability and fuel resistance.
  • Installation and Cost: Seals are straightforward replacements for DIY maintenance; prices range from $3.95 for individual seals to $35.95 for kits—factor in pack sizes (e.g., 5-10) and free shipping over $99 for value.

Frequently Asked Questions (FAQs)

  1. What Harley models and engines do these seals and O-rings support? Parts support Big Twin, Evo, Twin Cam, and models like FL/FLH, XL, Softail—use the year/make/model filter for compatibility, including specific applications like oil pump or fork seals.
  2. How do Viton seals improve performance? Viton offers high-temp and oil resistance, preventing leaks in critical areas like sprocket shafts or pushrod covers for reliable engine operation.
  3. What materials are used in seals and O-rings? Common materials include Viton (for oil/cranks), Nitrile Rubber (neutral switch), Silicone (rocker breather), ensuring fuel resistance without cracking.
  4. Are these sold in packs or individually? Many are in packs (5-10 units) for convenience in rebuilds; some like fork seal kits include everything needed for installation.
  5. What if a part doesn't fit my Harley? Verify application (e.g., shifter shaft, fuel filter) and year before buying. Our returns policy allows exchanges or refunds if it doesn't match.
  6. Can I find related engine parts? Yes—explore gaskets, pistons, or full rebuild kits in the Harley engine category to complement your seals and O-rings for a complete overhaul.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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