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 Large Pushrod Rubber 17955-48-A
JAMES GASKET
$82.30Made in the U.S.A.DS174535- SKU:
- DS174535
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- PUSHROD COVER
- RIDING STYLE:
- STREET
- UNITS:
- 100 PACK
$82.30 -
JAMES GASKET Oil Tank Line Seal - XLH 63529-50
JAMES GASKET
$24.40Made in the U.S.A.DS174525- SKU:
- DS174525
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL LINE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$24.40 -
JAMES GASKET Oil Line Feed Tube Rubber Seal 63525-92
JAMES GASKET
$26.10Made in the U.S.A.DS174524- SKU:
- DS174524
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL LINE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$26.10 -
JAMES GASKET Gas Cap O-Ring 61109-85-C
JAMES GASKET
$28.50Made in the U.S.A.DS174515- SKU:
- DS174515
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- FUEL CAP
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
$28.50 -
JAMES GASKET Shifter Shaft Seal 11148
JAMES GASKET
$19.81JAMES GASKET Shifter Shaft SealDS174489- SKU:
- DS174489
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- GEAR SHIFT LEVER
- TYPE:
- QUAD SEAL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- X-RING
- UNITS:
- 25 PACK
$19.81 -
JAMES GASKET Starter Shaft Oil Seal - Big Twin 31341-80DL
JAMES GASKET
$14.50Made in the U.S.A.DS174486- SKU:
- DS174486
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- UNITS:
- 5 PACK
$14.50 -
JAMES GASKET Kick Shaft Oil Seal - XL/Big Twin 33076-37
JAMES GASKET
$11.80Made in the U.S.A.DS174478- SKU:
- DS174478
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
- APPLICATION:
- CRANKSHAFT
- APPLICATION:
- KICKSTARTER
- RIDING STYLE:
- STREET
$11.80 -
JAMES GASKET Shifter Cam Shaft Seal 34036-36
JAMES GASKET
$11.10JAMES GASKET Shifter Cam Shaft SealDS174477- SKU:
- DS174477
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
- APPLICATION:
- SHIFTER SHAFT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- STREET
$11.10 -
JAMES GASKET Mainshaft Seal - Big Twin 12044-A
JAMES GASKET
$14.95Made in the U.S.A.DS174476- SKU:
- DS174476
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- STREET
- APPLICATION:
- MAIN DRIVE GEAR
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
$14.95 -
JAMES GASKET Main Drive Gear Seal 12013-A
JAMES GASKET
$9.50Top quality main drive gear shaft sealsDS174475- SKU:
- DS174475
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- APPLICATION:
- MAIN DRIVE GEAR
- APPLICATION:
- MAINSHAFT
$9.50 -
JAMES GASKET Pushrod Cork - Big Twin 37337-36
JAMES GASKET
$24.40Made in the U.S.A.DS174474- SKU:
- DS174474
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- CLUTCH PUSHROD
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$24.40 -
JAMES GASKET Oil Seal for Supernut 35211-85-DL
JAMES GASKET
$24.70Replacement oil seal, For 4-Speed TransmissionDS174458- SKU:
- DS174458
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- STYLE:
- 4-SPEED
- PRODUCT NAME:
- SEAL
- TYPE:
- SUPER NUT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$24.70 -
JAMES GASKET Trans Mainshaft Seal Kit - 4 Speed 37741-67-K
JAMES GASKET
$24.95Designed for most 4-, 5- or 6-speed Big Twin transmissions, Made in the U.S.A.DS174456- SKU:
- DS174456
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- TRANSMISSION
- STYLE:
- 4-SPEED
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$24.95 -
JAMES GASKET Main Drive Gear Double Lip Seal 37741-82DL
JAMES GASKET
$13.95Top quality main drive gear shaft sealsDS174455- SKU:
- DS174455
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$13.95 -
JAMES GASKET Shift Fork Shaft - Big Twin 34036-80
JAMES GASKET
$7.80Quality washers made to last, Made in the U.S.A.DS174454- SKU:
- DS174454
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
- TYPE:
- SHIFTER SHAFT
- UNITS:
- 10 PACK
$7.80Qty in Cart: 0Quantity:Price:$7.80Subtotal: -
JAMES GASKET Float Bowl O-Ring - XL,F 27889-78
JAMES GASKET
$21.00Made in the U.S.A.DS174448- SKU:
- DS174448
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- FLOAT BOWL
- PRODUCT NAME:
- O-RING
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- APPLICATION:
- CARBURETOR
$21.00 -
JAMES GASKET Magneto Plate Oil Seal - XLCH 12023
JAMES GASKET
$22.10Made in the U.S.A.DS174421- SKU:
- DS174421
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SEAL
- APPLICATION:
- MAGNETO MOUNTING
- APPLICATION:
- PUSHROD COVER
$22.10Qty in Cart: 0Quantity:Price:$22.10Subtotal: -
JAMES GASKET Rocker Cover Seal 17475-38
JAMES GASKET
$23.70JAMES GASKET Rocker Cover SealDS174414- SKU:
- DS174414
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- TYPE:
- ROCKER COVER
- PRODUCT NAME:
- SEAL
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
$23.70 -
JAMES GASKET Tappet Pin Cover O-Ring - XL 11176
JAMES GASKET
$3.00Made in the U.S.A.DS174398- SKU:
- DS174398
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- TAPPET GUIDE
- PRODUCT NAME:
- O-RING
- TYPE:
- PIN
- RIDING STYLE:
- STREET
- UNITS:
- 25 PACK
$3.00 -
JAMES GASKET Solenoid Mounting Air Control O-Ring 11170
JAMES GASKET
$17.20Made in the U.S.A.DS174396- SKU:
- DS174396
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
- APPLICATION:
- CRANKSHAFT POSITION SENSOR
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$17.20
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.