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
- Cometic Engine Crankcase Seal C9682 – High-quality main seal for Twin Cam and Evo crankcases; prevents oil leaks at the mainshaft.
- Cometic Valve Stem Seal Viton C9166 – Viton valve stem seals; heat- and oil-resistant for Big Twin and Sportster heads.
- Cometic Pushrod Tube O-Ring C9584 – Pushrod tube O-ring set; perfect seal between cylinder and rocker box on Evo and Twin Cam.
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
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JAMES GASKET Cam Position Sensor O-Ring 11288
JAMES GASKET
$9.00Made in the U.S.A.DS173205- SKU:
- DS173205
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CAM POSITION SENSOR
$9.00 -
JAMES GASKET Case Dowel O-Ring - Twin Cam 11273
JAMES GASKET
$4.00Made in the U.S.A.DS173203- SKU:
- DS173203
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- CYLINDER HEAD
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- MATERIAL:
- RUBBER
- TYPE:
- DOWEL
- PRODUCT NAME:
- O-RING
$4.00 -
JAMES GASKET Rocker Arm Support O-Ring - Twin Cam 11270
JAMES GASKET
$6.30Made in the U.S.A.DS173202- SKU:
- DS173202
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- CYLINDER HEAD
- APPLICATION:
- LOWER ROCKER COVER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- SUPPORT
- UNITS:
- 10 PACK
$6.30 -
JAMES GASKET Cylinder Base O-Ring - Twin Cam 11256
JAMES GASKET
$20.10Made in the U.S.A.DS173201- SKU:
- DS173201
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- APPLICATION:
- CYLINDER
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CRANKCASE
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 10 PACK
$20.10 -
COMETIC Derby O-Ring C9442
COMETIC
$13.70High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.DS172019- SKU:
- DS172019
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- NITRILE RUBBER
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- APPLICATION:
- DERBY COVER
$13.70Qty in Cart: 0Quantity:Price:$13.70Subtotal: -
JAMES GASKET Mainshaft Seal - XL 35169-52
JAMES GASKET
$15.60Made in the U.S.A.78081033- SKU:
- 78081033
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$15.60 -
JAMES GASKET Oil Seal Retainer Kit - XL 35150-52
JAMES GASKET
$12.95Made in the U.S.A.78081032- SKU:
- 78081032
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- SPROCKET SHAFT
- RIDING STYLE:
- STREET
- APPLICATION:
- TRANSMISSION
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$12.95 -
JAMES GASKET Piston Liner O-Ring - 4 Pack ST-11900027
JAMES GASKET
$20.95Made in the U.S.A.09351071- SKU:
- 09351071
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- PISTON
- PRODUCT NAME:
- O-RING
- TYPE:
- PISTON LINER
- UNITS:
- KIT
$20.95 -
JAMES GASKET Breather O-Ring - M8 JGI-11900116
JAMES GASKET
$13.10Made in the U.S.A.09350985- SKU:
- 09350985
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- O-RING
- MATERIAL:
- RUBBER
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$13.10 -
JAMES GASKET Sprocket Shaft Seal JGI-11000134
JAMES GASKET
$15.40Made in the U.S.A.09350984- SKU:
- 09350984
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- SPROCKET SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$15.40 -
JAMES GASKET Engine Inner Primary Seal JGI-25600455
JAMES GASKET
$24.95Made in the U.S.A.09350983- SKU:
- 09350983
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- APPLICATION:
- INNER PRIMARY
- UNITS:
- EACH
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
$24.95 -
JAMES GASKET Engine to Trans Seal - M8 JGI-24400215
JAMES GASKET
$13.95Made in the U.S.A.09350982- SKU:
- 09350982
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- ENGINE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$13.95 -
JAMES GASKET Shifter Shaft Seal - M8 JGI-11000101
JAMES GASKET
$7.95Made in the U.S.A.09350981- SKU:
- 09350981
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- SHIFTER SHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
$7.95 -
JAMES GASKET Intake Manifold Seal - M8 JGI-27300087
JAMES GASKET
$18.00Made in the U.S.A.09350980- SKU:
- 09350980
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- INTAKE MANIFOLD
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$18.00 -
JAMES GASKET Valve Stem Seal - M8 JGI-18100044
JAMES GASKET
$7.80Made in the U.S.A.09350979- SKU:
- 09350979
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- TYPE:
- VALVE STEM
- PRODUCT NAME:
- SEAL
- UNITS:
- 8 PACK
$7.80 -
JAMES GASKET Cylinder Rocker Seal - M8 JGI-25700425
JAMES GASKET
$29.40Made in the U.S.A.09350978- SKU:
- 09350978
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- APPLICATION:
- ROCKER COVER
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$29.40 -
COMETIC Module Kit O-Ring C10200
COMETIC
$8.35Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350977- SKU:
- 09350977
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INDUCTION MODULE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- UNITS:
- 4 PACK
$8.35 -
COMETIC Drive Gear Seal - 5 Pack C9514
COMETIC
$24.20Made in the U.S.A.09350213- SKU:
- 09350213
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
- APPLICATION:
- MAIN DRIVE GEAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
$24.20 -
COMETIC Clutch Release Seal C9354
COMETIC
$5.95Made in the U.S.A.09350211- SKU:
- 09350211
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- CLUTCH RELEASE LEVER
- UNITS:
- EACH
- PRODUCT NAME:
- O-RING
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
$5.95 -
COMETIC Shifter Shaft Seal C9525
COMETIC
$10.60Made in the U.S.A.09350184- SKU:
- 09350184
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- SHIFTER SHAFT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
$10.60Qty in Cart: 0Quantity:Price:$10.60Subtotal:
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)
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
