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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On Sale
COMETIC Clutch Release Seal C9354
COMETIC
MSRP: $5.95Now: $5.36Was: $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...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
MSRP: $5.95Now: $5.36Was: $5.95Qty in Cart: 0Quantity:Price:MSRP: $5.95Now: $5.36Was: $5.95Subtotal: -
On Sale
COMETIC Shifter Shaft Seal C9525
COMETIC
Now: $9.54Was: $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...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
Now: $9.54Was: $10.60 -
On Sale
COMETIC Outer Oil Pump O-Ring C9437
COMETIC
MSRP: $2.95Now: $2.66Was: $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...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
MSRP: $2.95Now: $2.66Was: $2.95Qty in Cart: 0Quantity:Price:MSRP: $2.95Now: $2.66Was: $2.95Subtotal: -
On Sale
COMETIC Intake to Cab Seal C9088F5
COMETIC
Now: $22.14Was: $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...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
Now: $22.14Was: $24.60Qty in Cart: 0Quantity:Price:Now: $22.14Was: $24.60Subtotal: -
On Sale
COMETIC Sprocket Shaft Oil Seal C9632
COMETIC
Now: $22.14Was: $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...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
Now: $22.14Was: $24.60Qty in Cart: 0Quantity:Price:Now: $22.14Was: $24.60Subtotal: -
On Sale
COMETIC Lower Pushrod O-Ring C9293
COMETIC
Now: $5.76Was: $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...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
Now: $5.76Was: $6.40 -
On Sale
COMETIC Upper Pushrod Cover O-Ring C9294
COMETIC
Now: $7.29Was: $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...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
Now: $7.29Was: $8.10 -
On Sale
COMETIC Rocker Arm Support O-Ring C9629
COMETIC
MSRP: $3.95Now: $3.56Was: $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...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'
MSRP: $3.95Now: $3.56Was: $3.95Qty in Cart: 0Quantity:Price:MSRP: $3.95Now: $3.56Was: $3.95Subtotal: -
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...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...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...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...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...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...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...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...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...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 -
On Sale
COMETIC Primary Case O-Ring C9441
COMETIC
Now: $16.11Was: $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...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
Now: $16.11Was: $17.90Qty in Cart: 0Quantity:Price:Now: $16.11Was: $17.90Subtotal: -
On Sale
COMETIC Starter Shaft Seal C9261
COMETIC
Now: $13.32Was: $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...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
Now: $13.32Was: $14.80Qty in Cart: 0Quantity:Price:Now: $13.32Was: $14.80Subtotal: -
On Sale
COMETIC Cam Sensor O-Ring C9627
COMETIC
Now: $4.41Was: $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...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
Now: $4.41Was: $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.
