C10194 Cometic Cylinder base gasket set. RCS 4.320" big bore for Harley-Davidson
incl. VAT
Chapter members save 12% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Cometic
- Part Number
- C10194
- OEM Reference
- —
- Pack Quantity
- Sold as pr
- Category
- Derby Covers Seal Kits
- VAT Rate
- 20%
About This Product
These Cometic cylinder base gaskets are designed for Milwaukee-Eight engines running a 4.320" big bore setup. Constructed from .014" thick Rubber Coated Steel (RCS), they feature an embossed steel core with a heat-resistant nitrile rubber coating on both sides. This design provides a robust, high-pressure seal that can withstand the demands of a high-performance engine. They fit 2018–2024 Softail models, 2017–2025 FLT/Touring models (excluding specific CVO and 2024-up fairing models), and 2017–2025 Trikes. Sold as a pair for one engine, these gaskets are essential for ensuring a leak-free base seal on your M8 big bore project.
Manufacturer part number: C10194.
Fitment
35 models18-24Softail; 17-25 FLT/Touring (excl. 24-25 FLTRX; FLHX; 2025 FLHXU; 2023 FLHXSE; 2023 FLTRXSE); 17-25 Trikes. With 4.320" big bore cylinders
Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2024 | Police Road Glide FLTRXP |
Softail 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2018 | Breakout 114 Anniversary FXBRS |
| Harley-Davidson | 2018–2022 | Breakout 114 FXBRS |
| Harley-Davidson | 2023–2024 | Breakout FXBR |
| Harley-Davidson | 2018–2020 | Deluxe FLDE |
| Harley-Davidson | 2019–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2019 | Fat Bob FXFB |
| Harley-Davidson | 2018 | Fat Boy 114 Anniversary FLFBS |
| Harley-Davidson | 2018–2024 | Fat Boy 114 FLFBS |
| Harley-Davidson | 2018–2020 | Fat Boy FLFB |
| Harley-Davidson | 2018 | Heritage Classic 114 Anniversary FLHCS |
| Harley-Davidson | 2018–2024 | Heritage Classic 114 FLHCS |
| Harley-Davidson | 2018–2021 | Heritage Classic FLHC |
| Harley-Davidson | 2020–2022 | Low Rider S FXLRS |
| Harley-Davidson | 2018–2021 | Slim FLSL |
| Harley-Davidson | 2019–2020 | Softail Slim FLSL |
| Harley-Davidson | 2018–2024 | Sport Glide FLSB |
| Harley-Davidson | 2021–2024 | Street Bob 114 FXBBS |
| Harley-Davidson | 2018–2020 | Street Bob FXBB |
Touring 16 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2023 | Electra Glide Highway King FLHFB |
| Harley-Davidson | 2023 | Road Glide Anniversary FLTRXSANV |
| Harley-Davidson | 2017–2023 | Road Glide FLTRX |
| Harley-Davidson | 2021–2024 | Road Glide Limited FLTRK |
| Harley-Davidson | 2017–2023 | Road Glide Special FLTRXS |
| Harley-Davidson | 2023 | Road Glide St FLTRXST |
| Harley-Davidson | 2017–2024 | Road King Special FLHRXS |
| Harley-Davidson | 2018 | Street Glide Anniversary FLHX |
| Harley-Davidson | 2023 | Street Glide Anniversary FLHXSANV |
| Harley-Davidson | 2017–2024 | Street Glide FLHX |
| Harley-Davidson | 2023 | Street Glide ST FLHXST |
| Harley-Davidson | 2018 | Ultra Limited Anniversary FLHTK |
| Harley-Davidson | 2023 | Ultra Limited Anniversary FLHTKANV |
| Harley-Davidson | 2017–2023 | Ultra Limited FLHTK |
| Harley-Davidson | 2018–2023 | Ultra Limited Shrine Edition FLHTK |
| Harley-Davidson | 2017 | Ultra Limited Shrine FLHTK |
Planning other changes? Find your model in the bike customiser.
Related Products
View all →
James Gaskets
Seal plate derby cover. RCM
Cometic
Oil seal shifter shaft
Cometic
Cylinder head gasket set .030" MLS 4.125" bore
Cometic
Cylinder head gasket set .036" MLS 4.125" bore
Cometic
Cylinder head gasket set. .040" MLS 4.185" bore
Cometic
Cylinder head gasket set. .030" MLS 4.200" bore
Cometic
Cylinder head gasket set. .040" MLS 4.500" bore
Cometic
Gasket primary cover. .060" AFM
More from Cometic
View all →
Gasket transmission top cover. .031" fiber
Cylinder head gaskets 3-3/4" bore .040" MLS
Valve guide seals. Viton
Cylinder head gasket set. 3.5" bore .040" MLS
Primary cover gasket & seal kit. in/out. AFM
Gasket transmission top cover. .032" AFM
Gasket speedometer drive unit. .020" fiber
Top end gasket kit. XL1000
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.