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 Engine Crankcase Seal C9682
COMETIC
Now: $46.00Was: $49.20Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350374- SKU:
- 09350374
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- CRANKCASE
- MATERIAL:
- VITON
- UNITS:
- 10 PACK
- PRODUCT NAME:
- SEAL
Now: $46.00Was: $49.20Qty in Cart: 0Quantity:Price:Now: $46.00Was: $49.20Subtotal: -
On Sale
COMETIC Trans Shifter Drum Seal C9354F5
COMETIC
Now: $9.00Was: $9.80Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350376- SKU:
- 09350376
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- UNITS:
- 5 PACK
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- SHIFTER SHAFT
- APPLICATION:
- TRANSMISSION
Now: $9.00Was: $9.80Qty in Cart: 0Quantity:Price:Now: $9.00Was: $9.80Subtotal: -
On Sale
COMETIC Interconnect Seal C9004
COMETIC
Now: $17.00Was: $18.00Made in the U.S.A.09350377- SKU:
- 09350377
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- APPLICATION:
- INTERCONNECT
- MATERIAL:
- VITON
Now: $17.00Was: $18.00Qty in Cart: 0Quantity:Price:Now: $17.00Was: $18.00Subtotal: -
COMETIC O-Ring & Valve O-Ring - Twin Cam C9586
COMETIC
$7.00O-rings are made of a high-temperature Viton® rubber to seal in even the harshest environments, Package includes seals and O-rings for one application, Made in the U.S.A.09350139- SKU:
- 09350139
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- PUSHROD COVER
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- VITON
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL
$7.00Qty in Cart: 0Quantity:Price:$7.00Subtotal: -
On Sale
COMETIC Rocker Box Washer C9400
COMETIC
Now: $5.00Was: $5.30High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350168- SKU:
- 09350168
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- ROCKER COVER
- MATERIAL:
- COPPER
- PRODUCT NAME:
- WASHER
Now: $5.00Was: $5.30 -
On Sale
COMETIC Paper Rocker Box Washer C9286
COMETIC
MSRP: $4.15Now: $4.00Was: $4.70High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350169- SKU:
- 09350169
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- APPLICATION:
- ROCKER COVER
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- WASHER
MSRP: $4.15Now: $4.00Was: $4.70 -
On Sale
COMETIC Oil Pump Cover O-Ring C9440
COMETIC
MSRP: $6.25Now: $6.00Was: $6.25High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350174- SKU:
- 09350174
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- APPLICATION:
- OIL PUMP
- RIDING STYLE:
- STREET
- UNITS:
- 25 PACK
MSRP: $6.25Now: $6.00Was: $6.25Qty in Cart: 0Quantity:Price:MSRP: $6.25Now: $6.00Was: $6.25Subtotal: -
On Sale
COMETIC Oil Pump Drive Gear Seal C9349
COMETIC
Now: $9.00Was: $9.50High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350175- SKU:
- 09350175
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- OIL PUMP
- RIDING STYLE:
- STREET
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- UNITS:
- 5 PACK
Now: $9.00Was: $9.50Qty in Cart: 0Quantity:Price:Now: $9.00Was: $9.50Subtotal: -
On Sale
COMETIC Sprocket Shaft Seal C9351
COMETIC
Now: $11.00Was: $11.60COMETIC Sprocket Shaft Seal09350176- SKU:
- 09350176
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- UNITS:
- 5 PACK
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- APPLICATION:
- SPROCKET SHAFT
- PRODUCT NAME:
- SEAL
Now: $11.00Was: $11.60Qty in Cart: 0Quantity:Price:Now: $11.00Was: $11.60Subtotal: -
On Sale
COMETIC Upper Pushrod Cover O-Ring Pack C9451
COMETIC
MSRP: $6.25Now: $6.00Was: $6.25COMETIC Upper Pushrod Cover O-Ring Pack09350178- SKU:
- 09350178
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- O-RING
- THICKNESS:
- 0,060'
- APPLICATION:
- PUSHROD COVER
- APPLICATION:
- ROCKER COVER
- THICKNESS IMPERIAL:
- 0.060'
- UNITS:
- 10 PACK
MSRP: $6.25Now: $6.00Was: $6.25 -
On Sale
COMETIC Starter Shaft Seal C9491
COMETIC
Now: $9.00Was: $9.50Made in the U.S.A.09350180- SKU:
- 09350180
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- VITON
- APPLICATION:
- STARTER SHAFT
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
Now: $9.00Was: $9.50 -
On Sale
COMETIC Mainshaft O-Ring C9530
COMETIC
Now: $6.00Was: $6.40High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350190- SKU:
- 09350190
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- APPLICATION:
- MAIN DRIVE GEAR
- RIDING STYLE:
- STREET
- UNITS:
- 25 PACK
- APPLICATION:
- TRANSMISSION
Now: $6.00Was: $6.40Qty in Cart: 0Quantity:Price:Now: $6.00Was: $6.40Subtotal: -
On Sale
COMETIC Main Shaft Seal C9262
COMETIC
MSRP: $10.95Now: $10.00Was: $10.95High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350203- SKU:
- 09350203
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
MSRP: $10.95Now: $10.00Was: $10.95Qty in Cart: 0Quantity:Price:MSRP: $10.95Now: $10.00Was: $10.95Subtotal: -
On Sale
COMETIC Lower Tappet Block O-Ring C9444
COMETIC
Now: $8.00Was: $8.40High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350227- SKU:
- 09350227
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- LOWER TAPPET BLOCK
- RIDING STYLE:
- STREET
- MATERIAL:
- NITRILE
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
Now: $8.00Was: $8.40 -
On Sale
COMETIC Clutch Inspection Cover O-Ring C9434
COMETIC
Now: $6.00Was: $6.40Made in the U.S.A.09350231- SKU:
- 09350231
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- BUNA
- UNITS:
- 10 PACK
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CLUTCH INSPECTION COVER
- RIDING STYLE:
- STREET
Now: $6.00Was: $6.40 -
COMETIC Starter Seal - Twin Cam C9201F1
COMETIC
$5.00High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350849- SKU:
- 09350849
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- STARTER
- UNITS:
- EACH
- MATERIAL:
- BUNA RUBBER
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
$5.00Qty in Cart: 0Quantity:Price:$5.00Subtotal: -
On Sale
COMETIC Seal C10213
COMETIC
Now: $13.00Was: $13.90High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09351001- SKU:
- 09351001
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SEAL
- APPLICATION:
- SHIFTER SHAFT
Now: $13.00Was: $13.90Qty in Cart: 0Quantity:Price:Now: $13.00Was: $13.90Subtotal: -
On Sale
COMETIC Pushtube O-Ring - XL C9956
COMETIC
Now: $48.00Was: $50.70High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials, Viton® gaskets feature a stainless steel core with a .001" -thick coating of Viton rubber on both sides, Made in the U.S.A.09340741- SKU:
- 09340741
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- NITRILE RUBBER
- APPLICATION:
- PUSHROD TUBE
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 25 PACK
Now: $48.00Was: $50.70Qty in Cart: 0Quantity:Price:Now: $48.00Was: $50.70Subtotal: -
On Sale
COMETIC Shifter Shaft O-Ring C9252
COMETIC
Now: $9.00Was: $9.30High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep or become brittle, Made in the U.S.A.09350278- SKU:
- 09350278
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- APPLICATION:
- STARTER SHAFT
- MATERIAL:
- BUNA
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
Now: $9.00Was: $9.30Qty in Cart: 0Quantity:Price:Now: $9.00Was: $9.30Subtotal: -
On Sale
COMETIC Inner Primary O-Ring C9536
COMETIC
Now: $49.00Was: $52.30High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350261- SKU:
- 09350261
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- INNER PRIMARY
- MATERIAL:
- VITON
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- APPLICATION:
- MOTOR
- PRODUCT NAME:
- O-RING
Now: $49.00Was: $52.30Qty in Cart: 0Quantity:Price:Now: $49.00Was: $52.30Subtotal:
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.
