Canadian-owned.   No duty surprises.   Need help? 1-800-291-9509

Gaskets & Seals
MotorcycleEngine & PerformanceGaskets & SealsCometic Replacement Gaskets, Seals and O-Rings
Cometic Replacement Gaskets, Seals and O-Rings
Gaskets & Seals

Cometic Replacement Gaskets, Seals and O-Rings

$2.95 - $289.95
136 of 165 options in stock

For use on all XL, Twin Cam and M-Eight. Sold in 10 pk. Made in the U.S.A.

Find Your Vehicle

Search by year, make, or model to see which options fit your ride:

Available Options:
(image for) Cometic Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.240" thick)
Cometic Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.240" thick)
View Fitment
C9247
In Stock
$111.95
M-Eight

Gaskets and seals designed specifically for Harley-Davidson Milwaukee-Eight engines (2017-2024).

(image for) Cometic Upper Rocker Box Cover Gasket
Cometic Upper Rocker Box Cover Gasket
View Fitment
C10179
In Stock
$164.95
(image for) Cometic Head Gasket (3.937" bore)
Cometic Head Gasket (3.937" bore)
View Fitment
C10164
In Stock
$86.95
(image for) Cometic Head Gasket (4.00" bore)
Cometic Head Gasket (4.00" bore)
View Fitment
C10165-030
In Stock
$86.95
(image for) Cometic Head Gasket (4.095" bore)
Cometic Head Gasket (4.095" bore)
View Fitment
C10166
In Stock
$86.95
(image for) Cometic Head Gasket for 17-24 M-Eight, 4.205” bore
Cometic Head Gasket for 17-24 M-Eight, 4.205” bore
View Fitment
0934-5929
No longer available
Details
Details
(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10181
In Stock
$86.95
(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10181-030
In Stock
$86.95
(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10182
Out of Stock
$86.95
Notify Me
Notify Me
(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10182-030
Out of Stock
$86.95
Notify Me
Notify Me
(image for) Cometic Head Gasket (4.320" bore, liquid-cooled heads)
Cometic Head Gasket (4.320" bore, liquid-cooled heads)
View Fitment
C10192
In Stock
$86.95
(image for) Cometic Base Gasket
Cometic Base Gasket
View Fitment
C10177
In Stock
$45.95
(image for) Cometic Base Gasket
Cometic Base Gasket
View Fitment
C10177-010
In Stock
$45.95
(image for) Cometic Base Gasket
Cometic Base Gasket
View Fitment
C10177-020
In Stock
$45.95
(image for) Cometic Tappet Cover Gasket
Cometic Tappet Cover Gasket
View Fitment
C10172
In Stock
$56.95
(image for) Cometic Oil Pan Gasket
Cometic Oil Pan Gasket
View Fitment
C10215
In Stock
$30.95
(image for) Cometic Oil Pan Gasket
Cometic Oil Pan Gasket
View Fitment
C10243
In Stock
$30.95
(image for) Cometic Intake Manifold Service Kit
Cometic Intake Manifold Service Kit
View Fitment
C10247
In Stock
$57.95
(image for) Cometic Air Cleaner-to-Throttle Body Seal
Cometic Air Cleaner-to-Throttle Body Seal
View Fitment
C10207
In Stock
$41.95
(image for) Cometic Fuel Injector O-Ring Seal (Repl. Black O-Ring)
Cometic Fuel Injector O-Ring Seal (Repl. Black O-Ring)
View Fitment
0935-0994
No longer available
Details
Details
(image for) Cometic Primary Cover Gasket
Cometic Primary Cover Gasket
View Fitment
C10198F1
In Stock
$64.95
(image for) Cometic Primary Cover Gasket
Cometic Primary Cover Gasket
View Fitment
C10198F5
In Stock
$289.95
(image for) Cometic Primary Cover Gasket
Cometic Primary Cover Gasket
View Fitment
C10241F5
Out of Stock
$289.95
Notify Me
Notify Me
(image for) Cometic Primary to Engine Gasket
Cometic Primary to Engine Gasket
View Fitment
C10211
Out of Stock
$46.95
Notify Me
Notify Me
(image for) Cometic Shifter Shaft Seal
Cometic Shifter Shaft Seal
View Fitment
C10213
In Stock
$33.95
(image for) Cometic Engine-to-Transmission Gasket
Cometic Engine-to-Transmission Gasket
View Fitment
C10214
In Stock
$16.95
(image for) Cometic Transmission Top Lid Gasket
Cometic Transmission Top Lid Gasket
View Fitment
C10216
In Stock
$11.95
(image for) Cometic Transmission Top Cover Gasket
Cometic Transmission Top Cover Gasket
View Fitment
C10246
Out of Stock
$34.95
Notify Me
Notify Me
(image for) Cometic Clutch Gasket
Cometic Clutch Gasket
View Fitment
C10306F5
In Stock
$56.95
(image for) Cometic Left Muffler/Cross-Over Gasket (HDI)
Cometic Left Muffler/Cross-Over Gasket (HDI)
View Fitment
C10232
In Stock
$57.95
(image for) Cometic Right Muffler Gasket (HDI)
Cometic Right Muffler Gasket (HDI)
View Fitment
C10351
In Stock
$44.95
Twin Cam

Comprehensive range of gaskets and seals for Harley-Davidson Twin Cam engines (1999-2017).

(image for) Cometic Stainless Graphite Mesh Tapered Exhaust Port Gasket
Cometic Stainless Graphite Mesh Tapered Exhaust Port Gasket
View Fitment
C9288
In Stock
$91.95
(image for) Stainless Graphite Mesh Tapered Exhaust Port Gasket
Stainless Graphite Mesh Tapered Exhaust Port Gasket
View Fitment
C9288
In Stock
$91.95
(image for) Cometic Stainless Spiral Wound Exhaust Port Gasket
Cometic Stainless Spiral Wound Exhaust Port Gasket
View Fitment
C9540
In Stock
$143.95
(image for) Stainless Spiral Wound Exhaust Port Gasket
Stainless Spiral Wound Exhaust Port Gasket
View Fitment
C9540
In Stock
$143.95
(image for) Cometic Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.110" thick)
Cometic Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.110" thick)
View Fitment
C9719
In Stock
$77.95
(image for) Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.110")
Stainless Graphite Mesh Race-Style Exhaust Port Gasket (0.110")
View Fitment
C9719
In Stock
$77.95
(image for) Cometic Rocker Arm Support O-Ring
Cometic Rocker Arm Support O-Ring
View Fitment
C9629
In Stock
$7.95
(image for) Cometic Rocker Housing Gasket
Cometic Rocker Housing Gasket
View Fitment
C9576
In Stock
$151.95
Cometic Rocker Housing Gasket
View Fitment
C9576-2
Out of Stock
$25.95
Notify Me
Notify Me
(image for) Cometic Rocker Box Cover Gasket
Cometic Rocker Box Cover Gasket
View Fitment
C9577
In Stock
$151.95
Cometic Rocker Box Cover Gasket
View Fitment
C9577-2
Out of Stock
$25.95
Notify Me
Notify Me
(image for) Cometic Breather Cover Gasket
Cometic Breather Cover Gasket
View Fitment
C9579
In Stock
$19.95
(image for) Cometic Breather Baffle Gasket
Cometic Breather Baffle Gasket
View Fitment
C9580
In Stock
$19.95
(image for) Cometic Rocker Cover Umbrella Valve Seal
Cometic Rocker Cover Umbrella Valve Seal
View Fitment
C9633
In Stock
$75.95
(image for) Cometic Twin Cam Breather Filter Element Gasket
Cometic Twin Cam Breather Filter Element Gasket
View Fitment
C10114
In Stock
$29.95
(image for) Cometic Cylinder Base O-Ring (Except 110" Motor)
Cometic Cylinder Base O-Ring (Except 110" Motor)
View Fitment
C9628
In Stock
$32.95
Cometic Head Gasket (3.875" bore)
View Fitment
C10081-030
In Stock
$86.95
Cometic Head Gasket (3.875" bore)
View Fitment
C10081-040
Out of Stock
$86.95
Notify Me
Notify Me
Cometic Head Gasket (3.937" bore)
View Fitment
C10083-030
In Stock
$86.95
Cometic Head Gasket (3.937" bore)
View Fitment
C10083-040
In Stock
$86.95
Cometic Head Gasket (4.000" bore)
View Fitment
C10084-040
In Stock
$86.95
Cometic Head Gasket (4.125" bore)
View Fitment
C10086-030
In Stock
$86.95
Cometic Head Gasket (4.125" bore)
View Fitment
C10086-040
In Stock
$86.95
(image for) Cometic Head Gasket (88"/96" std. bore)
Cometic Head Gasket (88"/96" std. bore)
View Fitment
C9790
In Stock
$86.95
(image for) Cometic Head Gasket (88"/96" std. bore)
Cometic Head Gasket (88"/96" std. bore)
View Fitment
C9745
In Stock
$86.95
(image for) Cometic Head Gasket (88"/96" std. bore)
Cometic Head Gasket (88"/96" std. bore)
View Fitment
C9157
In Stock
$86.95
(image for) Cometic Head Gasket (4" bore)
Cometic Head Gasket (4" bore)
View Fitment
C9725
In Stock
$86.95
(image for) Cometic Head Gasket (4" bore)
Cometic Head Gasket (4" bore)
View Fitment
C9726
In Stock
$86.95
(image for) Cometic Head Gasket (4.125" bore)
Cometic Head Gasket (4.125" bore)
View Fitment
C9910
In Stock
$86.95
(image for) Cometic Head Gasket (4.125" bore)
Cometic Head Gasket (4.125" bore)
View Fitment
C9743
In Stock
$86.95
(image for) Cometic Head Gasket (3.875" bore)
Cometic Head Gasket (3.875" bore)
View Fitment
C9721
In Stock
$86.95
(image for) Cometic Head Gasket (3.875" bore)
Cometic Head Gasket (3.875" bore)
View Fitment
C9722
In Stock
$86.95
(image for) Cometic Base Gasket for 99-17 Twin Cam 4” bore (0.010")
Cometic Base Gasket for 99-17 Twin Cam 4” bore (0.010")
View Fitment
0934-0777
No longer available
Details
Details
(image for) Cometic Base Gasket (4.125" bore)
Cometic Base Gasket (4.125" bore)
View Fitment
C9739
In Stock
$45.95
Cometic Base Gasket (4.060" bore)
View Fitment
C9110-010
In Stock
$45.95
Cometic Head Gasket (4" bore)
View Fitment
C9726-045
In Stock
$86.95
Cometic Head Gasket (4.060" bore)
View Fitment
C9070-030
In Stock
$86.95
Cometic Head Gasket (4.060" bore)
View Fitment
C9070-040
In Stock
$86.95
Cometic Head Gasket (4.125" bore w/ center Lyr embossment)
View Fitment
C10042
In Stock
$86.95
Cometic Head Gasket (4.250" bore w/ center Lyr embossment)
View Fitment
C10043
In Stock
$86.95
Cometic Head Gasket (88"/95" and 103")
C9721-036
In Stock
$86.95
Cometic Head Gasket (88"/95" and 103")
C9132
In Stock
$86.95
Cometic Head Gasket (88"/95" and 103")
114872
No longer available
Details
Details
(image for) Cometic Engine Case Locating Dowel O-Ring
Cometic Engine Case Locating Dowel O-Ring
View Fitment
C9438
In Stock
$12.95
(image for) Cometic Oil Pump Outer O-Ring
Cometic Oil Pump Outer O-Ring
View Fitment
C9437
Out of Stock
$5.95
Notify Me
Notify Me
(image for) Cometic Oil Pump Inner Small O-Ring
Cometic Oil Pump Inner Small O-Ring
View Fitment
C9449
In Stock
$17.95
(image for) Cometic Motor Sprocket Shaft Oil Seal
Cometic Motor Sprocket Shaft Oil Seal
View Fitment
C9632
In Stock
$59.95
(image for) Cometic Lifter Cover Gasket
Cometic Lifter Cover Gasket
View Fitment
C9578F
In Stock
$13.95
(image for) Cometic Tappet Cover Gasket
Cometic Tappet Cover Gasket
View Fitment
C9578
In Stock
$13.95
Cometic Cam Service Gasket Kit
View Fitment
C10047
In Stock
$130.95
(image for) Cometic Oil Pan Gasket
Cometic Oil Pan Gasket
View Fitment
C9646F1
In Stock
$17.95
Cometic Cam Cover Gasket
View Fitment
C9575F1
In Stock
$21.95
(image for) Cometic Oil Pan Gasket
Cometic Oil Pan Gasket
View Fitment
C9647F1
In Stock
$18.95
(image for) Cometic Cam Cover Gasket
Cometic Cam Cover Gasket
View Fitment
C9575F5
In Stock
$105.95
(image for) Cometic Oil Pan Gasket
Cometic Oil Pan Gasket
View Fitment
C9647F
In Stock
$177.95
Cometic Oil Filler Spout Gasket for 99-06 FLT
View Fitment
114982
No longer available
Details
Details
(image for) Cometic Inner Primary-to-Case O-Ring
Cometic Inner Primary-to-Case O-Ring
View Fitment
C9441
In Stock
$43.95
(image for) Cometic Derby Cover O-Ring Gasket
Cometic Derby Cover O-Ring Gasket
View Fitment
C9152F1
Out of Stock
$11.95
Notify Me
Notify Me
Cometic Derby Cover O-Ring Gasket
View Fitment
C9152F5
In Stock
$51.95
(image for) Cometic Derby Cover Gasket (Except CVO, Low)
Cometic Derby Cover Gasket (Except CVO, Low)
View Fitment
C10140F1
In Stock
$11.95
(image for) Cometic Derby Cover Gasket (Except CVO, Low)
Cometic Derby Cover Gasket (Except CVO, Low)
View Fitment
C10140F5
In Stock
$51.95
(image for) Cometic Derby Cover O-Ring
Cometic Derby Cover O-Ring
View Fitment
C9662
In Stock
$37.95
(image for) Cometic Derby Cover Gasket (Replaces O-Ring)
Cometic Derby Cover Gasket (Replaces O-Ring)
View Fitment
C9997F5
In Stock
$51.95
Cometic Derby Cover Gasket (Replaces O-Ring)
View Fitment
C9997F1
In Stock
$11.95
(image for) Cometic Starter-to-Primary Case O-Ring
Cometic Starter-to-Primary Case O-Ring
View Fitment
C9201
In Stock
$27.95
(image for) Cometic Starter-to-Primary Case O-Ring
Cometic Starter-to-Primary Case O-Ring
View Fitment
C9201F1
In Stock
$2.95
(image for) Cometic Primary Gasket
Cometic Primary Gasket
View Fitment
C9179F1
In Stock
$64.95
(image for) Cometic Primary Gasket
Cometic Primary Gasket
View Fitment
C9179F5
Out of Stock
$289.95
Notify Me
Notify Me
Cometic Primary Gasket
View Fitment
C9307F1
In Stock
$64.95
Cometic Inspection Cover Gasket
View Fitment
C9305F1
In Stock
$15.95
(image for) Cometic Inner Primary Gasket
Cometic Inner Primary Gasket
View Fitment
C9199F5
In Stock
$254.95
Cometic Primary Spacer Inner Primary Gasket
View Fitment
C9199F1
In Stock
$51.95
Cometic Primary Gasket
View Fitment
C9309F1
In Stock
$64.95
(image for) Cometic Primary Gasket
Cometic Primary Gasket
View Fitment
C9145F1
In Stock
$64.95
(image for) Cometic Primary Gasket
Cometic Primary Gasket
View Fitment
C9145F5
In Stock
$289.95
Cometic Inspection Cover Gasket
View Fitment
C9331F1
In Stock
$10.95
(image for) Cometic Shift Shaft Tube Gasket
Cometic Shift Shaft Tube Gasket
View Fitment
C9005
In Stock
$20.95
(image for) Cometic Output Gear Oil Seal
Cometic Output Gear Oil Seal
View Fitment
C9200
In Stock
$130.95
(image for) Cometic Output Gear Oil Seal
Cometic Output Gear Oil Seal
View Fitment
C9200F1
Out of Stock
$13.95
Notify Me
Notify Me
(image for) Cometic Transmission Top Cover Gasket
Cometic Transmission Top Cover Gasket
View Fitment
C9267F
In Stock
$44.95
Cometic Transmission Top Cover Gasket for 99-06 Twin Cam (Wide)
View Fitment
114983
No longer available
Details
Details
(image for) Cometic Transmission Top Cover Gasket
Cometic Transmission Top Cover Gasket
View Fitment
C9189
In Stock
$44.95
(image for) Cometic Transmission Top Cover Gasket
Cometic Transmission Top Cover Gasket
View Fitment
C9645F
In Stock
$44.95
(image for) Cometic Transmission-to-Engine Case Gasket
Cometic Transmission-to-Engine Case Gasket
View Fitment
C9190F1
In Stock
$34.95
(image for) Cometic Transmission Bearing Housing Gasket
Cometic Transmission Bearing Housing Gasket
View Fitment
C9644F
In Stock
$49.95
Cometic Oil Filter Line Ferrule
C10011
No longer available
$30.95
Details
Details
(image for) Transmission Bearing Housing Gasket
Transmission Bearing Housing Gasket
View Fitment
C9187
In Stock
$49.95
(image for) Transmission End Cover Gasket
Transmission End Cover Gasket
View Fitment
C9188
In Stock
$48.95
(image for) Transmission Shift Drum Seal
Transmission Shift Drum Seal
View Fitment
C9354F5
In Stock
$23.95
Transmission Trap Door Gasket
View Fitment
C9644
In Stock
$49.95
(image for) Carburetor Backing Plate O-Ring
Carburetor Backing Plate O-Ring
View Fitment
C9686
In Stock
$8.95
(image for) Intake Manifold Seal for Carbureted
Intake Manifold Seal for Carbureted
View Fitment
C9290
In Stock
$38.95
(image for) Carburetor-To-Intake Manifold Seal
Carburetor-To-Intake Manifold Seal
View Fitment
C9088F5
In Stock
$59.95
Induction Module O-Ring
View Fitment
C10073
In Stock
$29.95
(image for) Carb/Throttle Body To Backplate Gasket
Carb/Throttle Body To Backplate Gasket
View Fitment
C9492
In Stock
$47.95
Air Filter Element Gasket
View Fitment
C10007
In Stock
$50.95
(image for) Breather Filter Element
Breather Filter Element
View Fitment
C9679
In Stock
$29.95
V-Rod

Performance and OE-style exhaust gaskets for Harley-Davidson V-Rod models.

(image for) Exhaust Port Gasket (Extreme Performance)
Exhaust Port Gasket (Extreme Performance)
View Fitment
C9928
In Stock
$20.95
Exhaust Port Gasket (OE-Style)
View Fitment
C10060
In Stock
$44.95
XL, RA & Buell

Gaskets and seals for Harley-Davidson Sportster (XL), RA models, and Buell motorcycles.

(image for) Transmission Mainshaft Oil Seal
Transmission Mainshaft Oil Seal
View Fitment
C9215
In Stock
$19.95
(image for) Lower Rocker Cover Gasket
Lower Rocker Cover Gasket
View Fitment
C9280
In Stock
$48.95
(image for) Outer Rocker Gasket
Outer Rocker Gasket
View Fitment
C9208
No longer available
$30.95
Details
Details
(image for) Outer Rocker Gasket
Outer Rocker Gasket
View Fitment
C9196
Out of Stock
$30.95
Notify Me
Notify Me
Cometic Head Gasket for 84-99 XL 3.5” bore
View Fitment
114157
No longer available
Details
Details
Head Gasket, 3.562" Bore
View Fitment
C9257
In Stock
$86.95
(image for) Base Gasket
Base Gasket
View Fitment
C9553
In Stock
$45.95
(image for) Tappet Block Gasket
Tappet Block Gasket
View Fitment
C9955
In Stock
$17.95
(image for) Cam Cover Gasket
Cam Cover Gasket
View Fitment
C9311F5
Out of Stock
$129.95
Notify Me
Notify Me
(image for) Cam Cover Gasket
Cam Cover Gasket
View Fitment
C9944F5
In Stock
$61.95
Cam Cover Gasket
View Fitment
C9944F1
In Stock
$14.95
Cometic Oil Pump Gasket for 91-22 XL
View Fitment
115134
No longer available
Details
Details
(image for) Cometic Starter Gasket for 86-22 XL
Cometic Starter Gasket for 86-22 XL
View Fitment
0935-0238
No longer available
Details
Details
(image for) Primary Cover Gasket
Primary Cover Gasket
View Fitment
C9943F5
In Stock
$202.95
(image for) Primary Gasket
Primary Gasket
View Fitment
C9310F5
Out of Stock
$202.95
Notify Me
Notify Me
(image for) Primary Gasket
Primary Gasket
View Fitment
C9314F5
In Stock
$202.95
Primary Gasket
View Fitment
C9314F1
Out of Stock
$44.95
Notify Me
Notify Me
(image for) Chain Inspection Cover Gasket
Chain Inspection Cover Gasket
View Fitment
C9957
Out of Stock
$44.95
Notify Me
Notify Me
Primary Gasket Kit
View Fitment
C9310F1
In Stock
$44.95
(image for) Clutch Inspection Cover O-Ring
Clutch Inspection Cover O-Ring
View Fitment
C9434
In Stock
$15.95
(image for) Clutch Inspection Cover O-Ring
Clutch Inspection Cover O-Ring
View Fitment
C9439
Out of Stock
$15.95
Notify Me
Notify Me
(image for) Clutch Cover O-Ring Gasket
Clutch Cover O-Ring Gasket
View Fitment
C9220
In Stock
$68.95
Shift Shaft Seal
View Fitment
C10104F5
In Stock
$23.95
(image for) Exhaust Header Gasket
Exhaust Header Gasket
View Fitment
C10352
In Stock
$30.95
M-Eight

Replacement gaskets, seals, and O-rings engineered specifically for Harley-Davidson Milwaukee-Eight (M-Eight) engine applications.

(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10377-030
In Stock
$129.95
(image for) Cometic Head Gasket (4.250" bore)
Cometic Head Gasket (4.250" bore)
View Fitment
C10377
In Stock
$129.95
(image for) Cometic Head Gasket (4.310" bore)
Cometic Head Gasket (4.310" bore)
View Fitment
C10378-030
In Stock
$129.95
(image for) Cometic Head Gasket (4.310" bore)
Cometic Head Gasket (4.310" bore)
View Fitment
C10378
In Stock
$129.95
Twin Cam

Replacement gaskets, seals, and O-rings engineered specifically for Harley-Davidson Twin Cam engine applications.

(image for) Cometic Transmission-to-Engine Case Gasket
Cometic Transmission-to-Engine Case Gasket
View Fitment
C9190F5
In Stock
$157.95
For Twin Cam

Replacement gaskets, seals, and o-rings for Twin Cam models.

(image for) Fuel Cap Seal
Fuel Cap Seal
View Fitment
C10356
In Stock
$79.95
For XL/RA and Buell

Replacement gaskets, seals, and o-rings for XL/RA and Buell models.
Head Gasket
View Fitment
C10362
In Stock
$125.95
Base Gasket
View Fitment
C10361
In Stock
$70.95
(image for) Oil Drain Plug O-Ring
Oil Drain Plug O-Ring
View Fitment
C10366
In Stock
$22.95
(image for) Oil Dipstick O-Ring
Oil Dipstick O-Ring
View Fitment
C10367
In Stock
$45.95
Crankcase Gasket
View Fitment
C10363
In Stock
$68.95
Vehicle Fitment Information
Share
Home
Shop
My Ride
Search
Cart
Login
Need Help?