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
-
On Sale
COMETIC Oil Pump Cover O-Ring C9684
COMETIC
MSRP: $3.95Now: $3.56Was: $3.95Oil pump cover o-rings fail silently, leading to leaks that compromise lubrication and engine reliability. This COMETIC seal restores the critical barrier between your oil pump and engine block,...09350260- SKU:
- 09350260
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- OIL PUMP
- UNITS:
- 10 PACK
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
MSRP: $3.95Now: $3.56Was: $3.95Qty in Cart: 0Quantity:Price:MSRP: $3.95Now: $3.56Was: $3.95Subtotal: -
On Sale
COMETIC Inner Primary Bearing Seal C9518
COMETIC
Now: $10.44Was: $11.60Bearing seal failure leads to oil leakage, contamination, and catastrophic internal engine damage—especially in high-rpm applications where pressure and heat push standard seals beyond their limits...09350262- SKU:
- 09350262
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- INNER PRIMARY
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
Now: $10.44Was: $11.60Qty in Cart: 0Quantity:Price:Now: $10.44Was: $11.60Subtotal: -
On Sale
COMETIC Outer Rocker O-Ring C9224
COMETIC
Now: $28.89Was: $32.10Proper rocker cover sealing is critical to maintaining engine integrity and preventing oil leakage that can compromise performance and create costly cleanup issues. The COMETIC Outer Rocker O-Ring...09350264- SKU:
- 09350264
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- LOWER ROCKER COVER
- PRODUCT NAME:
- SEAL
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
Now: $28.89Was: $32.10Qty in Cart: 0Quantity:Price:Now: $28.89Was: $32.10Subtotal: -
On Sale
COMETIC Pushrod Tube O-Ring C9584
COMETIC
MSRP: $8.95Now: $8.06Was: $8.95Pushrod tube O-rings are critical wear items that prevent oil leakage at the cylinder head—a common failure point in high-revving engines. Using OEM-equivalent Viton® seals ensures you're maintaining...09350268- SKU:
- 09350268
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- SET
MSRP: $8.95Now: $8.06Was: $8.95Qty in Cart: 0Quantity:Price:MSRP: $8.95Now: $8.06Was: $8.95Subtotal: -
On Sale
COMETIC Pushrod Tube Seal Set C9585
COMETIC
MSRP: $8.95Now: $8.06Was: $8.95Pushrod tube seals are critical to maintaining oil pressure and preventing leakage in your engine's valvetrain. Over time, factory seals degrade and fail, resulting in oil weeping, reduced...09350269- SKU:
- 09350269
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- SET
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
MSRP: $8.95Now: $8.06Was: $8.95 -
On Sale
COMETIC Pushrod Tube O-Ring C9216
COMETIC
MSRP: $8.95Now: $8.06Was: $8.95Pushrod tube O-ring seals are critical for maintaining a leak-free valve train and preventing oil seepage that compromises engine reliability. COMETIC's Viton® seals deliver superior chemical...09350270- SKU:
- 09350270
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- SET
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- VITON
MSRP: $8.95Now: $8.06Was: $8.95 -
On Sale
COMETIC Main Drive Gear Metal Seal C9493
COMETIC
Now: $8.01Was: $8.90The COMETIC Main Drive Gear Metal Seal C9493 is engineered to eliminate leakage at the main drive gear, a critical pressure point in high-performance engines where seal failure can compromise oil...09350194- SKU:
- 09350194
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
Now: $8.01Was: $8.90Qty in Cart: 0Quantity:Price:Now: $8.01Was: $8.90Subtotal: -
On Sale
COMETIC Main Drive Gear Seal Rubber C9372
COMETIC
Now: $7.56Was: $8.40The COMETIC Main Drive Gear Seal (C9372) is engineered to prevent oil seepage and contamination at the main drive gear—a critical junction prone to leakage under high load and sustained RPM. A failed...09350195- SKU:
- 09350195
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
Now: $7.56Was: $8.40 -
On Sale
COMETIC Clutch Hub Nut Seal C9494
COMETIC
Now: $5.76Was: $6.40A properly sealed clutch hub nut is critical to preventing fluid leakage and maintaining clutch system integrity under racing conditions. The COMETIC C9494 seals the interface where your clutch hub...09350196- SKU:
- 09350196
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
- STYLE:
- DUAL LIP
- APPLICATION:
- CLUTCH HUB
- PRODUCT NAME:
- SEAL
Now: $5.76Was: $6.40 -
On Sale
COMETIC Main Drive Gear Seal C9506
COMETIC
Now: $8.01Was: $8.90A leaking main drive gear seal doesn't just waste oil—it risks catastrophic engine damage and costly downtime. The COMETIC C9506 delivers factory-grade sealing reliability without the factory wait...09350197- SKU:
- 09350197
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
Now: $8.01Was: $8.90 -
On Sale
COMETIC O-Ring C10210
COMETIC
Now: $6.12Was: $6.80A quality o-ring is the backbone of any sealed system—without proper sealing, you're looking at leaks, contamination, and catastrophic failure. The Cometic O-Ring C10210 delivers the precision fit...09350999- SKU:
- 09350999
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- APPLICATION:
- OIL PUMP
- UNITS:
- 10 PACK
Now: $6.12Was: $6.80 -
On Sale
COMETIC Primary Filler O-Ring C9446
COMETIC
Now: $4.77Was: $5.30A leaking primary cover gasket can compromise your engine's performance and longevity by allowing fuel and oil to escape where they shouldn't. The COMETIC Primary Filler O-Ring C9446 seals your...09344704- SKU:
- 09344704
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- FILLER
- MATERIAL:
- NITRILE RUBBER
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
Now: $4.77Was: $5.30 -
On Sale
COMETIC Drain Plug O-Ring C9435
COMETIC
MSRP: $6.25Now: $5.63Was: $6.25A worn or damaged drain plug O-ring is one of the easiest ways to develop an oil leak, compromising your engine's protection and creating costly messes in your garage or trailer. The COMETIC C9435 is...09350186- SKU:
- 09350186
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- NITRILE RUBBER
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- DRAIN PLUG
- PRODUCT NAME:
- O-RING
MSRP: $6.25Now: $5.63Was: $6.25Qty in Cart: 0Quantity:Price:MSRP: $6.25Now: $5.63Was: $6.25Subtotal: -
On Sale
COMETIC Shifter Shaft Seal C9259
COMETIC
Now: $8.55Was: $9.50Transmission fluid leaks at the shifter shaft are often overlooked until they become costly problems. The COMETIC Shifter Shaft Seal C9259 eliminates this vulnerability with a precision-engineered...09350201- SKU:
- 09350201
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- SHIFTER SHAFT
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SEAL
Now: $8.55Was: $9.50Qty in Cart: 0Quantity:Price:Now: $8.55Was: $9.50Subtotal: -
On Sale
COMETIC Trans Main Shaft Seal C9215
COMETIC
MSRP: $14.65Now: $13.19Was: $14.65A compromised transmission main shaft seal is an invitation for costly fluid leaks and internal transmission damage. The COMETIC Trans Main Shaft Seal C9215 eliminates that risk with a...09350375- SKU:
- 09350375
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
MSRP: $14.65Now: $13.19Was: $14.65Qty in Cart: 0Quantity:Price:MSRP: $14.65Now: $13.19Was: $14.65Subtotal: -
On Sale
COMETIC Main Drive Gear Seal C9362
COMETIC
Now: $7.56Was: $8.40A leaking main drive gear seal compromises engine efficiency and risks catastrophic damage to internal components. The COMETIC C9362 is engineered to maintain a reliable barrier against oil seepage,...09341403- SKU:
- 09341403
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- SPROCKET SHAFT
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
Now: $7.56Was: $8.40Qty in Cart: 0Quantity:Price:Now: $7.56Was: $8.40Subtotal: -
On Sale
COMETIC Pushrod O-Ring - M8 C9586-M8
COMETIC
MSRP: $15.70Now: $14.13Was: $15.70Pushrod seal degradation leads to oil leakage and compression loss—two problems that compromise engine reliability and performance. The COMETIC M8 Pushrod O-Ring delivers consistent sealing integrity...09351030- SKU:
- 09351030
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- KIT
MSRP: $15.70Now: $14.13Was: $15.70Qty in Cart: 0Quantity:Price:MSRP: $15.70Now: $14.13Was: $15.70Subtotal: -
On Sale
COMETIC Oil Pump Seal C10305
COMETIC
MSRP: $10.95Now: $9.86Was: $10.95An oil pump seal failure can lead to catastrophic oil leakage, dropping pressure and starving critical engine bearings of lubrication during high-performance runs. The COMETIC Oil Pump Seal C10305...09351181- SKU:
- 09351181
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- TYPE:
- OIL PUMP
MSRP: $10.95Now: $9.86Was: $10.95 -
On Sale
COMETIC Valve Stem Seal C10202
COMETIC
Now: $14.22Was: $15.80Valve stem seals are critical to engine longevity—they prevent oil from seeping into the combustion chamber, which causes excessive smoke, oil consumption, and carbon buildup. The COMETIC C10202 uses...09350991- SKU:
- 09350991
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- VALVE COVER
- RIDING STYLE:
- STREET
- UNITS:
- KIT
Now: $14.22Was: $15.80 -
On Sale
COMETIC Intake Seal C10203
COMETIC
Now: $12.15Was: $13.50A proper intake seal is critical to maintaining consistent air flow and preventing vacuum leaks that compromise engine efficiency and performance tuning. The COMETIC Intake Seal C10203 delivers...09350992- SKU:
- 09350992
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- APPLICATION:
- INTAKE MANIFOLD
- RIDING STYLE:
- STREET
Now: $12.15Was: $13.50
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.
