C10181-HB Head & base gasket kit 4.250" MLS/RCS
Fits: Custom applications: 18-25 Softail;…
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Specifications
- Brand
- Cometic
- Part Number
- C10181-HB
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Derby Covers Seal Kits
- VAT Rate
- 20%
About This Product
This Cometic head and base gasket kit is a specialized solution for custom 4.250-inch big bore Milwaukee-Eight engines. It fits 2018 to 2025 Softails and 2017 to 2025 Touring and Trike models. Sold as a kit to service one engine, it includes .040-inch Multi-Layer Steel (MLS) head gaskets and .014-inch Rubber Coated Steel (RCS) base gaskets. The unique design of these gaskets allows them to fit into the cylinder bore embossment while keeping the oil cooling ports open on oil-cooled heads, making this a true bolt-on application for both oil and water-cooled M8 models. This kit provides the professional-grade sealing required when pushing the displacement limits of the Milwaukee-Eight platform.
Manufacturer part number: C10181-HB.
Fitment
38 modelsCustom applications: 18-25 Softail; 17-25 FLT/Touring with oil cooled heads; 17-25 FLT/Touring; Trikes with water cooled heads. With custom 4.250" big bore kit
Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2024 | Police Road Glide FLTRXP |
Softail 19 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 | 2018–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2020 | 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 | 2023 | Low Rider ST FXLRST |
| 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 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2023 | Electra Glide Highway King FLHFB |
| Harley-Davidson | 2023 | Road Glide Anniversary FLTRXSANV |
| Harley-Davidson | 2017–2024 | Road Glide FLTRX |
| Harley-Davidson | 2021–2024 | Road Glide Limited FLTRK |
| Harley-Davidson | 2017–2023 | Road Glide Special FLTRXS |
| Harley-Davidson | 2022 | Road Glide Special St FLTRXST |
| 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 | 2022 | Street Glide Special ST FLHXST |
| Harley-Davidson | 2023 | Street Glide ST FLHXST |
| Harley-Davidson | 2018 | Ultra Limited Anniversary FLHTK |
| Harley-Davidson | 2023 | Ultra Limited Anniversary FLHTKANV |
| Harley-Davidson | 2017–2024 | Ultra Limited FLHTK |
| Harley-Davidson | 2018–2023 | Ultra Limited Shrine Edition FLHTK |
| Harley-Davidson | 2017 | Ultra Limited Shrine FLHTK |
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