New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Engine - Gaskets & Seals - Rocker Cover Gaskets

90 products
Seal the deal with precision-fit gaskets designed for leak-free power.
Brand Show all Brand
Vehicle Type Show all Vehicle Type
Price
  • -
Show all Price
Vehicle Fitment Combos Show all Vehicle Fitment Combos
Cometic Gasket C9865 Rocker Base Gasket
$22.13
$22.13
Qty 2. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle. Gaskets available in multiple types to best...
18% Off
Cometic Gasket C9577 Rocker Cover Gasket
$85.25
$85.25
$104.48
High-quality products for long-term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:2012-2015 Harley Davidson FLD Switch...
11% Off
Cometic Gasket C9588 Rocker Box Gasket Kit
$41.28
$41.28
$46.15
Cometic Gasket Rocker Box Gasket EST Kits for Harley Davidson engine include every gasket, seal, washer, and o-ring needed to overhaul your rocker boxes.Vehicle Fitment:2012-2016 Harley Davidson FL...
Cometic Gasket C9346 Rocker Cover Felt Pad
$29.25
$29.25
H-D #17507-48. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:1948-1950 Harley Dav...
17% Off
Cometic Gasket C9155 Rocker Box Gasket Kit (Die Cast Box Only)
$61.75
$61.75
$74.50
Cometic Gasket Rocker Box Gasket EST Kits for Harley Davidson engine include every gasket, seal, washer, and o-ring needed to overhaul your rocker boxes.Vehicle Fitment:2013-2016 Harley Davidson FL...
16% Off
Cometic Gasket C9167 Rocker Box Gasket Kit
$47.62
$47.62
$56.65
W/ seals for .530in. O.D. Guides. Cometic Gasket Rocker Box Gasket EST Kits for Harley Davidson engine include every gasket, seal, washer, and o-ring needed to overhaul your rocker boxes.Vehicle F...
Cometic Gasket C9629 Rocker Arm Support O-Rings (10pk)
$11.69
$11.69
H-D#11270. Qty: 10.Vehicle Fitment:2012-2016 Harley Davidson FLD Switchback 1999-2016 Harley Davidson FLHR Road King 2007-2013 Harley Davidson FLHRC Road King Classic 1999-2006 Harley Davidson FLHR...
6% Off
Cometic Gasket C9224 S&S Outer Rocker Box Gasket with Breather Flapper
$47.31
$47.31
$50.55
Sold in packs of 4, priced each. High-quality products for long term reliability. Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle.Vehicle Fitment:20...
James Gasket 17030-07 Rocker Cover Gasket Kit without Metal Rocker Base Gaskets
$38.95
$38.95
H-D# 17030-07. Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:2007-2019 Harley Davidson XL1200C Sportster 1200 Custom 2016-2020 Harley Davidson XL1200CX...
James Gasket 17540-99-X Rocker Cover Gasket - Metal with Silicone - .020in.
$51.25
$51.25
Sold pair. OEM# 17540-99X. All are top-quality Genuine James gaskets, seals and O-rings. Made in the USA.Vehicle Fitment:1966-1969 Harley Davidson FLFB Electra Glide 1970-1984 Harley Davidson FLH ...
4% Off
James Gasket 17541-48-DL Rocker Cover Gasket - RCM
$52.00
$52.00
$53.95
Package of 2. All are top-quality Genuine James gaskets, seals and O-rings. Made in the USA.Vehicle Fitment:1948-1950 Harley Davidson E 1948-1952 Harley Davidson EL 1948-1950 Harley Davidson F 194...
9% Off
James Gasket 17030-91-X Rocker Box Gasket Kit - Rubber with Metal Base
$87.50
$87.50
$95.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1996-2003 Harley Davidson XL1200C Sportster 1200 Custom 1996-2003 Harley Davidson XL1200S Sportster 1200 S...
9% Off
James Gasket 17030-04-X Rocker Box Gasket Kit - Rubber
$87.50
$87.50
$95.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:2004-2006 Harley Davidson XL1200C Sportster 1200 Custom 2006 Harley Davidson XL1200L Sportster 1200 Low 20...
9% Off
James Gasket 17030-89-X Rocker Box Gasket Kit - Rubber with Metal Base
$87.50
$87.50
$95.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1986-1987 Harley Davidson XLH1100 1988-1990 Harley Davidson XLH1200 1986-1990 Harley Davidson XLH883 1986-...
3% Off
James Gasket 17030-91 Rocker Box Gasket Kit - Rubber
$69.75
$69.75
$71.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1996-2003 Harley Davidson XL1200C Sportster 1200 Custom 1996-2003 Harley Davidson XL1200S Sportster 1200 S...
9% Off
James Gasket 17030-07-X Rocker Box Gasket Kit - Rubber
$87.50
$87.50
$95.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:2007-2019 Harley Davidson XL1200C Sportster 1200 Custom 2016-2020 Harley Davidson XL1200CX Roadster 2007-2...
6% Off
James Gasket 17030-89 Rocker Box Gasket Kit - Rubber
$67.38
$67.38
$71.95
Genuine James gaskets, seals and O-rings are made to last. Made in the USA.Vehicle Fitment:1986-1990 Harley Davidson XLH883 1986-1990 Harley Davidson XLH883DLX Sportster 883 Deluxe 1987-1990 Harley...
9% Off
James Gasket 17354-86-A Upper Rocker Cover Gasket - Rubber
$57.93
$57.93
$63.95
5 pack, priced each. H-D #17354-86A. All are top-quality Genuine James gaskets, seals and O-rings. Made in the USA.Vehicle Fitment:1986-1987 Harley Davidson XLH1100 1988-1990 Harley Davidson XLH12...
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle