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
-
JAMES GASKET S&S Intake Seal - 1.88" 26995-86-D
JAMES GASKET
$27.30A precise intake seal is critical for maintaining proper air-fuel mixture control and preventing bypass leaks that compromise combustion efficiency. The JAMES GASKET S&S Intake Seal ensures a tight, reliable seal at the intake manifold, protecting your...09340548- SKU:
- 09340548
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- INTAKE MANIFOLD
- PRODUCT NAME:
- SEAL
$27.30 -
On Sale
S&S CYCLE Left Main Seal - Sportster 91-13 31-4060
S&S CYCLE
MSRP: $24.95Now: $22.46Was: $24.95A worn or leaking main seal compromises engine reliability and can lead to costly oil loss and potential drivetrain damage. The S&S Cycle Left Main Seal is engineered to OEM specifications, ensuring a secure fit that prevents leakage and maintains proper...09350861- SKU:
- 09350861
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 1,500'
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- APPLICATION:
- SPROCKET SHAFT
- OUTSIDE DIAMETER:
- 2,000'
- OUTSIDE DIAMETER IMPERIAL:
- 2.000'
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,313'
- THICKNESS IMPERIAL:
- 0.313'
- TYPE:
- OIL
- APPLICATION:
- CRANKSHAFT
- INSIDE DIAMETER IMPERIAL:
- 1.500'
MSRP: $24.95Now: $22.46Was: $24.95 -
On Sale
S&S CYCLE G Manifold to Carburetor O-Ring 50-8093
S&S CYCLE
MSRP: $15.95Now: $14.36Was: $15.95A proper seal between your S&S Cycle manifold and carburetor is critical to maintaining consistent air-fuel mixture and preventing vacuum leaks that compromise performance. This OEM-spec O-ring ensures a reliable, long-lasting connection without the...DS289934- SKU:
- DS289934
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- INTAKE MANIFOLD TO CARBURETOR
MSRP: $15.95Now: $14.36Was: $15.95 -
On Sale
S&S CYCLE Viton O-Ring 50-7961-S
S&S CYCLE
MSRP: $9.95Now: $8.96Was: $9.95A worn or degraded O-ring in your S&S Super E or G carburetor can cause fuel leaks, air leaks, and inconsistent jetting—all of which tank performance and reliability. This OEM Viton O-ring is engineered to withstand fuel exposure and temperature cycling,...09350862- SKU:
- 09350862
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- INSIDE DIAMETER:
- 5,250'
- INSIDE DIAMETER IMPERIAL:
- 5.250'
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- OUTSIDE DIAMETER:
- 5,437'
- OUTSIDE DIAMETER IMPERIAL:
- 5.437'
- PRODUCT NAME:
- O-RING
- STYLE:
- PERFORMANCE REPLACEMENT
MSRP: $9.95Now: $8.96Was: $9.95 -
On Sale
S&S CYCLE Viton O-Ring 50-8008
S&S CYCLE
MSRP: $4.95Now: $4.46Was: $4.95Carburetor sealing integrity directly impacts fuel delivery consistency and engine performance. A degraded or missing O-ring in your Super E or G carburetor can introduce air leaks, causing lean conditions and unpredictable fueling. This S&S Cycle Viton...09350863- SKU:
- 09350863
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- OUTSIDE DIAMETER:
- 0,565'
- UNITS:
- EACH
- INSIDE DIAMETER:
- 0,437'
- MATERIAL:
- VITON
- OUTSIDE DIAMETER IMPERIAL:
- 0.565'
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- INSIDE DIAMETER IMPERIAL:
- 0.437'
- PRODUCT NAME:
- O-RING
MSRP: $4.95Now: $4.46Was: $4.95 -
On Sale
S&S CYCLE Silicone O-Ring 50-8012
S&S CYCLE
MSRP: $6.95Now: $6.26Was: $6.95Carburetor sealing integrity is critical to maintaining precise fuel-air ratios and preventing vacuum leaks that compromise performance. This S&S Cycle silicone O-ring is engineered as a direct replacement for Super E and G carburetors, ensuring a...09350866- SKU:
- 09350866
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 0,218'
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- OUTSIDE DIAMETER IMPERIAL:
- 0.3438'
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.218'
- PRODUCT NAME:
- O-RING
- APPLICATION:
- ACCELERATOR PUMP CAP
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER:
- 0,3438'
MSRP: $6.95Now: $6.26Was: $6.95 -
On Sale
S&S CYCLE Nitrile O-Ring 50-8013
S&S CYCLE
MSRP: $6.95Now: $6.26Was: $6.95If you're running a Super E or G carburetor, seal integrity directly impacts fuel delivery precision and overall engine performance. A worn or degraded o-ring creates fuel leaks, air leaks, and inconsistent jetting—issues that cost you power and...09350867- SKU:
- 09350867
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- PRODUCT NAME:
- O-RING
- MATERIAL:
- NITRILE RUBBER
- OUTSIDE DIAMETER IMPERIAL:
- 2.187'
- UNITS:
- EACH
- APPLICATION:
- INTAKE MANIFOLD TO CARBURETOR
- INSIDE DIAMETER:
- 2,000'
- INSIDE DIAMETER IMPERIAL:
- 2.000'
- OUTSIDE DIAMETER:
- 2,187'
MSRP: $6.95Now: $6.26Was: $6.95 -
On Sale
S&S CYCLE Nitrile O-Ring 50-8016
S&S CYCLE
MSRP: $6.95Now: $6.26Was: $6.95A deteriorating or missing O-ring in your S&S Super E or G carburetor can cause fuel leaks, air leaks, and erratic idle conditions that compromise both performance and reliability. This OEM nitrile O-ring is a direct replacement that restores a proper...09350868- SKU:
- 09350868
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 2,000'
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- INSIDE DIAMETER IMPERIAL:
- 2.000'
- MATERIAL:
- NITRILE RUBBER
- OUTSIDE DIAMETER:
- 2,125'
- OUTSIDE DIAMETER IMPERIAL:
- 2.125'
- UNITS:
- EACH
MSRP: $6.95Now: $6.26Was: $6.95 -
On Sale
S&S CYCLE Viton O-Ring 50-8044
S&S CYCLE
MSRP: $6.95Now: $6.26Was: $6.95A worn or degraded O-ring in your Super E or G carburetor will cause fuel leaks, air leaks, and inconsistent jetting—compromising both performance and reliability. This OEM S&S Cycle Viton O-ring is engineered to maintain a perfect seal under high heat...09350869- SKU:
- 09350869
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- MATERIAL:
- VITON
- OUTSIDE DIAMETER:
- 1,875'
- PRODUCT NAME:
- O-RING
- INSIDE DIAMETER:
- 1,625'
- INSIDE DIAMETER IMPERIAL:
- 1.625'
- OUTSIDE DIAMETER IMPERIAL:
- 1.875'
- UNITS:
- EACH
MSRP: $6.95Now: $6.26Was: $6.95 -
On Sale
S&S CYCLE Silicone O-Ring 50-8095
S&S CYCLE
MSRP: $19.95Now: $17.96Was: $19.95Carburetor seal integrity directly impacts fuel atomization and engine performance—a worn or degraded O-ring compromises both. The S&S Cycle silicone O-ring is engineered for Super E and G carburetors, providing reliable sealing under high temperatures...09350870- SKU:
- 09350870
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER:
- 0,390'
- OUTSIDE DIAMETER IMPERIAL:
- 0.510'
- UNITS:
- 10 PACK
- MATERIAL:
- SILICONE
- OUTSIDE DIAMETER:
- 0,510'
- PRODUCT NAME:
- O-RING
- INSIDE DIAMETER IMPERIAL:
- 0.390'
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
MSRP: $19.95Now: $17.96Was: $19.95 -
On Sale
S&S CYCLE Valve Guide Seals - 8 pack 90-2158
S&S CYCLE
MSRP: $23.95Now: $21.56Was: $23.95Valve guide seals are critical to maintaining proper oil control in your engine's cylinder head—worn or damaged seals allow oil to seep past the guides and into the combustion chamber, causing excessive smoke, fouled plugs, and reduced engine performance...09351009- SKU:
- 09351009
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- FUEL VALVE
- PRODUCT NAME:
- SEAL
- UNITS:
- 8 PACK
- RIDING STYLE:
- STREET
MSRP: $23.95Now: $21.56Was: $23.95 -
On Sale
S&S CYCLE Viton O-Ring - 14 mm x 1.5 mm 500-0861
S&S CYCLE
MSRP: $14.95Now: $13.46Was: $14.95Carburetor sealing integrity directly impacts fuel delivery precision and engine performance. A worn or degraded o-ring allows fuel and air mixture leakage, compromising combustion efficiency and causing rough idle or hesitation. This S&S Cycle Viton...09351014- SKU:
- 09351014
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- UNITS:
- 5 PACK
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
S&S CYCLE E Manifold to Carburetor O-Ring 50-8094
S&S CYCLE
MSRP: $14.95Now: $13.46Was: $14.95A worn or damaged O-ring at the E Manifold-to-carburetor junction will cause vacuum leaks, rough idle, and fuel delivery inconsistencies that compromise your engine's tuning. This S&S Cycle replacement O-ring restores a proper seal, ensuring consistent...DS289935- SKU:
- DS289935
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- INTAKE MANIFOLD TO CARBURETOR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- UNITS:
- 10 PACK
MSRP: $14.95Now: $13.46Was: $14.95 -
JAMES GASKET Generator Gear End Oil Seal 30145-46-A
JAMES GASKET
$16.10A faulty generator gear end oil seal will compromise your engine's lubrication system and lead to costly oil leaks and internal damage. The JAMES GASKET 30145-46-A is engineered to provide a reliable, long-lasting seal that keeps oil where it...DS194490- SKU:
- DS194490
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- GEAR END
- PRODUCT NAME:
- SEAL
- UNITS:
- 5 PACK
$16.10Qty in Cart: 0Quantity:Price:$16.10Subtotal: -
On Sale
COMETIC Valve Stem Seal - Viton C9836
COMETIC
Now: $35.00Was: $36.80Valve stem seals are critical to preventing oil leakage into your combustion chamber—a problem that causes rough idle, increased emissions, and accelerated wear on your valvetrain. The COMETIC Viton C9836 delivers the fuel-resistant durability and...09340738- SKU:
- 09340738
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- UNITS:
- 25 PACK
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- TYPE:
- VALVE STEM
Now: $35.00Was: $36.80 -
On Sale
COMETIC O-Ring C10208
COMETIC
Now: $8.00Was: $9.00Proper sealing is non-negotiable in high-performance applications, and the COMETIC O-Ring C10208 delivers the precision fit your engine demands. Whether you're rebuilding a race engine or maintaining critical fuel and coolant systems, this OEM-quality...09350997- SKU:
- 09350997
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- CRANKCASE
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
Now: $8.00Was: $9.00Qty in Cart: 0Quantity:Price:Now: $8.00Was: $9.00Subtotal: -
COMETIC Starter O-Ring - Big Twin C9433F1
COMETIC
$5.00A failing starter O-ring can leave you stranded, and OEM replacements often degrade under heat and fuel exposure. The COMETIC Starter O-Ring for Big Twin engines eliminates this weak point with a fuel-resistant seal that maintains integrity across...09350850- SKU:
- 09350850
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- STARTER HOUSING
- UNITS:
- EACH
- MATERIAL:
- BUNA RUBBER
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
$5.00Qty in Cart: 0Quantity:Price:$5.00Subtotal: -
On Sale
COMETIC Line Sleeve Oil Seal C9365
COMETIC
Now: $7.00Was: $7.20Oil seals are critical barriers that prevent fluid loss and contamination in high-performance engines—a single failure can compromise your entire drivetrain. The COMETIC Line Sleeve Oil Seal C9365 is engineered with fuel-resistant elastomers that...09350828- SKU:
- 09350828
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- APPLICATION:
- OIL LINE
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
Now: $7.00Was: $7.20 -
COMETIC Clutch Gear Seal C9368-1
COMETIC
$6.00Clutch gear seals are a critical point of failure in high-performance engines—improper sealing leads to fluid weepage, contamination, and premature clutch wear. The COMETIC C9368-1 is engineered to eliminate these issues with premium, fuel-resistant...09350831- SKU:
- 09350831
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- CLUTCH GEAR
- MATERIAL:
- VITON
$6.00Qty in Cart: 0Quantity:Price:$6.00Subtotal: -
COMETIC Clutch Hub Seal C9371-1
COMETIC
$7.00Clutch hub seals are critical to maintaining hydraulic integrity in your clutch system—a failure here means fluid loss, air intrusion, and immediate loss of clutch actuation. The COMETIC C9371-1 eliminates the guesswork with premium fuel-resistant...09350834- SKU:
- 09350834
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- CLUTCH HUB
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
- INSIDE DIAMETER METRIC:
- 33 MM
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- OUTSIDE DIAMETER METRIC:
- 47 MM
- THICKNESS METRIC:
- 7 MM
$7.00
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.
