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 Tappet Guide Upper O-Ring - XL 11167-A
JAMES GASKET
$19.30A worn or compromised tappet guide O-ring compromises valve train sealing and can lead to oil leakage, increased blowby, and accelerated wear on critical engine components. The JAMES GASKET Tappet Guide Upper O-Ring restores OEM-specification sealing...DS174362- SKU:
- DS174362
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- TAPPET GUIDE
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
$19.30 -
JAMES GASKET Tappet Guide O-Ring - XL 11110
JAMES GASKET
$7.50Valve train integrity depends on precise sealing, and worn or degraded tappet guide o-rings create oil leakage and loss of critical lubrication to your valve actuation components. The JAMES GASKET Tappet Guide O-Ring XL 11110 is engineered to restore...DS174361- SKU:
- DS174361
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- O-RING
- APPLICATION:
- LOWER TAPPET BLOCK
- UNITS:
- 25 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$7.50 -
JAMES GASKET Shifter Shaft Sleeve O-Ring - Big Twin 11117
JAMES GASKET
$19.30A worn or damaged shifter shaft sleeve o-ring compromises shift quality and can lead to fluid leakage in your Big Twin transmission. This JAMES GASKET replacement restores precise shift engagement and prevents costly internal damage. OEM-equivalent...DS174351- SKU:
- DS174351
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- GEAR SHIFT LEVER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- OIL
- UNITS:
- 25 PACK
$19.30 -
JAMES GASKET Primary Cover Seal - Big Twin 31433-84-A
JAMES GASKET
$11.60A leaking primary cover seal compromises your engine's integrity and creates a mess in your garage or on the track. The JAMES GASKET Primary Cover Seal is engineered to maintain a consistent, reliable barrier between your Big Twin's primary case and...DS174346- SKU:
- DS174346
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- CLUTCH COVER
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- 20 PACK
$11.60 -
JAMES GASKET Derby Cover O-Ring - Big Twin 25416-84
JAMES GASKET
$23.10A leaking derby cover isn't just messy—it's a sign that your seal has failed and oil is finding its way out of your engine. The James Gasket Derby Cover O-Ring delivers a reliable, OEM-quality seal that stops leaks before they start, keeping your Big...DS174345- SKU:
- DS174345
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- APPLICATION:
- DERBY COVER
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$23.10 -
JAMES GASKET Inner Primary Bearing Seal - Big Twin 12052
JAMES GASKET
$18.10The inner primary bearing seal is a critical component that protects your Big Twin's primary drive system from contamination and fluid leakage. A compromised seal leads to accelerated bearing wear, potential catastrophic primary failure, and costly...DS174343- SKU:
- DS174343
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- UNITS:
- 5 PACK
- APPLICATION:
- INNER PRIMARY
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
$18.10 -
JAMES GASKET Starter Shaft Seal - Big Twin 12051
JAMES GASKET
$22.40A leaking starter shaft seal doesn't just cost you oil—it compromises engine reliability and creates a mess in your engine bay. The JAMES GASKET Starter Shaft Seal for Big Twin engines is engineered to eliminate seepage at the source, ensuring your...DS174342- SKU:
- DS174342
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- UNITS:
- 5 PACK
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- STREET
- APPLICATION:
- STARTER
- PRODUCT NAME:
- SEAL
$22.40 -
JAMES GASKET Starter Housing O-Ring 11116
JAMES GASKET
$13.00A worn or degraded starter housing O-ring creates oil seepage, reduces seal integrity, and can compromise your engine's reliability during critical racing moments. The JAMES GASKET 11116 delivers a precision-engineered replacement that restores proper...DS174341- SKU:
- DS174341
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- STARTER HOUSING
$13.00 -
JAMES GASKET Starter Bolt O-Ring - XL 11171
JAMES GASKET
$14.00A leaking starter seal can drain your oil and compromise engine reliability—especially under racing conditions where every drop counts. The JAMES GASKET Starter Bolt O-Ring eliminates weeping at the starter mounting point with a precision-engineered...DS174340- SKU:
- DS174340
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- STARTER
$14.00 -
JAMES GASKET Float Bowl O-Ring 27324-83
JAMES GASKET
$21.50A worn or degraded float bowl O-ring compromises fuel system integrity, leading to fuel leaks, carburetor flooding, and unpredictable engine performance—especially critical in high-vibration racing environments. The JAMES GASKET Float Bowl O-Ring ensures...DS174337- SKU:
- DS174337
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- CARBURETOR
- APPLICATION:
- FLOAT BOWL
$21.50 -
JAMES GASKET Oil Screen Pump O-Ring 11105
JAMES GASKET
$8.20A deteriorated oil screen pump O-ring compromises oil circulation and can lead to inadequate lubrication throughout your engine—risking catastrophic bearing damage. The JAMES GASKET Oil Screen Pump O-Ring 11105 is an OEM-equivalent replacement that...DS174334- SKU:
- DS174334
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL PUMP
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 25 PACK
$8.20 -
JAMES GASKET Lower Pushrod O-Ring 11145
JAMES GASKET
$12.90Proper pushrod sealing is critical to maintaining oil pressure and preventing leakage in high-performance engines. The JAMES GASKET Lower Pushrod O-Ring ensures a reliable, long-lasting seal that withstands sustained RPM and demanding track conditions...DS174333- SKU:
- DS174333
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- PUSHROD COVER
- PRODUCT NAME:
- O-RING
- MATERIAL:
- RUBBER
- APPLICATION:
- TAPPET GUIDE
- UNITS:
- 25 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$12.90 -
JAMES GASKET Rocker Cover Washer - XL 63858-49
JAMES GASKET
$9.30A properly sealed rocker cover is fundamental to maintaining oil containment and preventing leaks that compromise engine cleanliness and performance. The JAMES GASKET Rocker Cover Washer XL 63858-49 delivers precision fitment and reliable sealing with...DS174332- SKU:
- DS174332
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- 25 PACK
- APPLICATION:
- ROCKER COVER
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
$9.30 -
JAMES GASKET Cylinder O-Ring - XL 26432-76-A
JAMES GASKET
$15.70Cylinder head integrity depends on reliable sealing, and a compromised O-ring will lead to coolant leaks, compression loss, and potential engine damage. The JAMES GASKET Cylinder O-Ring XL 26432-76-A delivers precision-engineered sealing that meets OEM...DS174330- SKU:
- DS174330
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- CYLINDER HEAD
- MATERIAL:
- RUBBER
- THICKNESS IMPERIAL:
- 0.045'
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 10 PACK
$15.70 -
JAMES GASKET Alternator Cover O-Ring - Big Twin 11147
JAMES GASKET
$26.80Proper alternator cover sealing prevents oil leakage and contamination of your electrical components, ensuring reliable charging system performance during extended rides and racing conditions. This OEM-replacement O-ring maintains a tight seal against...DS174316- SKU:
- DS174316
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- MOTOR
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CHAIN COVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 10 PACK
$26.80 -
JAMES GASKET Chain Housing Cover O-Ring 11125
JAMES GASKET
$23.30A worn or compromised chain housing cover o-ring will allow oil seepage and contamination, directly impacting chain lubrication and drivetrain longevity. The JAMES GASKET Chain Housing Cover O-Ring 11125 is a precision-engineered replacement that...DS174315- SKU:
- DS174315
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- CHAIN COVER
- TYPE:
- OIL
- APPLICATION:
- MOTOR
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$23.30 -
JAMES GASKET Side Starter Seal - Big Twin 12053
JAMES GASKET
$30.20A leaking starter seal compromises engine integrity and creates costly oil seepage that demands immediate attention. The JAMES GASKET Side Starter Seal delivers a precision-engineered replacement that restores a watertight seal on Big Twin engines,...DS174313- SKU:
- DS174313
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
$30.20 -
JAMES GASKET Lower Pushrod O-Ring - XL 17944-89
JAMES GASKET
$16.80Proper valve train sealing is non-negotiable in high-performance engines, and a degraded pushrod O-ring can compromise oil pressure, increase blowby, and accelerate wear on critical components. The JAMES GASKET Lower Pushrod O-Ring ensures a reliable...DS174312- SKU:
- DS174312
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- O-RING
- APPLICATION:
- PUSHROD COVER
- MATERIAL:
- RUBBER
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$16.80 -
JAMES GASKET Rocker Arm Shaft O-Ring 11101
JAMES GASKET
$5.40A failing rocker arm shaft o-ring compromises oil sealing and can lead to costly leaks that affect valve train performance and engine longevity. The JAMES GASKET Rocker Arm Shaft O-Ring 11101 is a precision-engineered replacement that restores proper...DS174290- SKU:
- DS174290
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- 25 PACK
- APPLICATION:
- ROCKER COVER
- PRODUCT NAME:
- O-RING
- APPLICATION:
- PUSHROD TUBE
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$5.40 -
JAMES GASKET Pushrod O-Ring - Big Twin 11157
JAMES GASKET
$20.10Pushrod o-rings are a critical seal in your Big Twin engine's valve train, and degradation leads to oil leakage and potential valve train damage. JAMES GASKET's precision-engineered o-ring maintains a reliable seal under high RPM loads and temperature...DS174289- SKU:
- DS174289
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- APPLICATION:
- PUSHROD COVER
- APPLICATION:
- ROCKER COVER
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 25 PACK
- PRODUCT NAME:
- O-RING
$20.10
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.
