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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COMETIC Clutch Release Seal C9354
COMETIC
$5.95A failing clutch release seal compromises hydraulic pressure and creates costly leaks that degrade clutch engagement and damage surrounding components. The COMETIC C9354 is a precision-engineered OEM-quality seal that restores system integrity and...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
$5.95Qty in Cart: 0Quantity:Price:$5.95Subtotal: -
COMETIC Shifter Shaft Seal C9525
COMETIC
$10.60A leaking shifter shaft seal compromises transmission fluid integrity and can lead to costly internal damage if left unaddressed. The COMETIC C9525 provides a reliable OEM-quality replacement that restores proper fluid containment and prevents...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
$10.60 -
COMETIC Outer Oil Pump O-Ring C9437
COMETIC
$2.95Oil pump o-rings are a critical sealing component that directly impacts engine oil pressure and circulation. A compromised o-ring can lead to oil leakage, pressure loss, and accelerated engine wear. The COMETIC C9437 is engineered with fuel-resistant...09350158- SKU:
- 09350158
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- APPLICATION:
- OIL PUMP
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
$2.95Qty in Cart: 0Quantity:Price:$2.95Subtotal: -
COMETIC Intake to Cab Seal C9088F5
COMETIC
$24.60Intake manifold gasket leaks compromise combustion efficiency and create vacuum losses that rob your engine of power and responsiveness. The COMETIC Intake to Cab Seal C9088F5 eliminates these leaks with a precision-engineered, U.S.-manufactured gasket...09350157- SKU:
- 09350157
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MATERIAL:
- NITRILE RUBBER
- PRODUCT NAME:
- SEAL
- UNITS:
- 5 PACK
- APPLICATION:
- INTAKE MANIFOLD TO CARBURETOR
- RIDING STYLE:
- STREET
$24.60Qty in Cart: 0Quantity:Price:$24.60Subtotal: -
COMETIC Sprocket Shaft Oil Seal C9632
COMETIC
$24.60A failing sprocket shaft oil seal is a silent reliability killer—once it starts weeping, contamination spreads quickly and catastrophic engine damage follows. The COMETIC Sprocket Shaft Oil Seal C9632 is engineered to maintain a tight, consistent seal...09350154- SKU:
- 09350154
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- APPLICATION:
- CRANKCASE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- SPROCKET SHAFT
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
$24.60 -
COMETIC Lower Pushrod O-Ring C9293
COMETIC
$6.40A leaking pushrod seal doesn't just cost you horsepower—it compromises engine reliability and invites catastrophic failure. The COMETIC Lower Pushrod O-Ring C9293 delivers the precision sealing your engine demands, engineered with fuel-resistant Viton®...09350150- SKU:
- 09350150
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- PUSHROD COVER
- MATERIAL:
- NITRILE RUBBER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
$6.40 -
COMETIC Upper Pushrod Cover O-Ring C9294
COMETIC
$8.10A properly sealed upper pushrod cover is critical to preventing oil seepage and maintaining engine bay cleanliness on high-performance builds. The COMETIC C9294 uses premium Viton® gaskets with a stainless steel core to deliver reliable, long-term...09350148- SKU:
- 09350148
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- UPPER PUSHROD
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
$8.10 -
COMETIC Rocker Arm Support O-Ring C9629
COMETIC
$3.95Rocker arm support seals are critical to maintaining proper oil pressure and preventing leakage in high-performance engines where reliability is non-negotiable. COMETIC's C9629 O-Ring is engineered from premium fuel-resistant elastomers that resist...09350147- SKU:
- 09350147
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- ROCKER ARM
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- MATERIAL:
- STEEL
- THICKNESS IMPERIAL:
- 0.020'
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- THICKNESS:
- 0,020'
$3.95 -
JAMES GASKET Shifter Shaft Seal 37107-06
JAMES GASKET
$18.70A leaking shifter shaft seal transforms a minor annoyance into a major maintenance headache—fluid seepage leads to corrosion, sluggish shifting, and accelerated wear on internal components. The JAMES GASKET Shifter Shaft Seal 37107-06 is engineered to...09350110- SKU:
- 09350110
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- GEAR SHIFT LEVER
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
$18.70 -
JAMES GASKET Intake Seal - XL/Buell 26995-98
JAMES GASKET
$37.70A properly sealed intake manifold is critical for maintaining fuel atomization and preventing vacuum leaks that compromise throttle response and fuel economy. The JAMES GASKET Intake Seal delivers OEM-grade sealing performance with the durability...09340549- SKU:
- 09340549
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE MANIFOLD
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$37.70 -
JAMES GASKET Outer Oil Pump O-Ring - Twin Cam 11286
JAMES GASKET
$10.60A failing oil pump O-ring compromises your Twin Cam engine's lubrication system, risking catastrophic bearing damage and catastrophic failure at high RPM. JAMES GASKET's OEM-equivalent outer oil pump O-ring ensures a perfect seal, maintaining consistent...DS173204- SKU:
- DS173204
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- O-RING
- APPLICATION:
- OIL PUMP
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 10 PACK
$10.60 -
JAMES GASKET Oil Pump Inner Small O-Ring 11301
JAMES GASKET
$6.30A properly sealed oil pump is critical to maintaining consistent oil pressure and preventing internal leaks that compromise engine reliability. The JAMES GASKET Oil Pump Inner Small O-Ring is precision-engineered to ensure a tight seal within your oil...DS173213- SKU:
- DS173213
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- OIL PUMP
- UNITS:
- 10 PACK
$6.30 -
JAMES GASKET Oil Line Seal - XL/Big Twin 63529-57
JAMES GASKET
$6.50Oil line seals are critical to preventing pressurized fluid leaks at connection points—a failure here means contamination, performance loss, and potential engine damage. The JAMES GASKET Oil Line Seal is engineered to maintain a reliable, leak-free seal...DS174310- SKU:
- DS174310
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- OIL LINE
- UNITS:
- 25 PACK
$6.50 -
JAMES GASKET Oil Pump Check Valve O-Ring 26433-77
JAMES GASKET
$15.70A failing oil pump check valve O-ring compromises your engine's oil pressure regulation and can lead to inadequate lubrication under load. This JAMES GASKET replacement ensures reliable pressure holding and consistent oil delivery to critical engine...DS174323- SKU:
- DS174323
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL PUMP
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CHECK VALVE
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$15.70 -
JAMES GASKET Oil Pump Plug O-Ring - M8 JGI-11900010
JAMES GASKET
$7.70A quality oil pump plug o-ring is essential for maintaining a reliable seal and preventing costly oil leaks that can compromise engine performance and cleanliness. This JAMES GASKET component ensures consistent pressure retention and durability under...09350988- SKU:
- 09350988
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- RUBBER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- UNITS:
- 10 PACK
$7.70 -
JAMES GASKET Oil Pump Outer O-Ring - M8 JGI-11900103
JAMES GASKET
$4.30A worn or compromised oil pump outer O-ring compromises your engine's lubrication system, risking catastrophic bearing failure and costly downtime. This JAMES GASKET replacement O-ring restores a proper seal, ensuring consistent oil pressure delivery to...09350989- SKU:
- 09350989
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- UNITS:
- 10 PACK
$4.30 -
JAMES GASKET Oil Deflector Seal 60518-65-DL
JAMES GASKET
$14.95Oil leaks compromise engine performance and create costly maintenance headaches. The JAMES GASKET Oil Deflector Seal 60518-65-DL prevents oil seepage at critical engine junction points, maintaining proper lubrication flow and protecting your engine bay...09350092- SKU:
- 09350092
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- APPLICATION:
- DEFLECTOR PLATE
$14.95 -
COMETIC Primary Case O-Ring C9441
COMETIC
$17.90Engine case sealing demands precision and reliability—a failed o-ring can lead to oil leaks, contamination, and catastrophic internal damage. The COMETIC Primary Case O-Ring C9441 is engineered from premium fuel-resistant elastomer that resists creep,...09350161- SKU:
- 09350161
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- NITRILE RUBBER
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- APPLICATION:
- INNER PRIMARY
- RIDING STYLE:
- STREET
$17.90 -
COMETIC Starter Shaft Seal C9261
COMETIC
$14.80A leaking starter shaft seal can compromise engine oil integrity and starter reliability, leading to costly repairs down the line. The COMETIC C9261 is a precision-engineered replacement seal that restores the critical barrier between your starter motor...09350163- SKU:
- 09350163
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- UNITS:
- 5 PACK
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
$14.80 -
COMETIC Cam Sensor O-Ring C9627
COMETIC
$4.90A failing cam sensor O-ring compromises your engine's ability to maintain precise fuel and ignition timing, leading to rough idle, reduced power delivery, and potential check engine codes. The COMETIC C9627 replaces the worn elastomer with a...09350164- SKU:
- 09350164
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- CAM POSITION SENSOR
- UNITS:
- 10 PACK
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
$4.90
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.
