# Twin Power 17-Up M8 Rocker Box Gasket Kit

Twin Power™ rocker box gasket kits include the critical gaskets needed to reseal rocker boxes on popular Big Twin and Sportster engines, helping control top-end oil leaks.

-   Ideal for top-end refreshes, noise diagnosis, or routine gasket replacement
-   Help restore proper sealing around rocker box covers and mating surfaces
-   Includes all gaskets for rocker box removal and replacement
-   Made in USA

This Part Fits:

Year

Make

Model

Submodel

2018-2020

Harley-Davidson

FLDE Deluxe 107

Base

2018-2019

Harley-Davidson

FLFB Fat Boy 107

Base

2025

Harley-Davidson

FLFB Fat Boy 117

Base

2018-2024

Harley-Davidson

FLFBS Fat Boy 114

Base

2021

Harley-Davidson

FLH Electra Glide Revival

Base

2018-2021

Harley-Davidson

FLHC Heritage Classic 107

Base

2025

Harley-Davidson

FLHC Heritage Classic 117

Base

2018-2024

Harley-Davidson

FLHCS Heritage Classic 114

Base

2023

Harley-Davidson

FLHFB Electra Glide Highway King

Base

2017-2022

Harley-Davidson

FLHR Road King

Base

2017-2025

Harley-Davidson

FLHRXS Road King Special

Base

2019-2022

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2019

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

2017-2025

Harley-Davidson

FLHTCUTG Tri Glide Ultra

Base

2022

Harley-Davidson

FLHTCUTG Tri Glide Ultra G.I.

Base

2020-2022

Harley-Davidson

FLHTCUTGSE CVO Tri Glide

Base

2017-2024

Harley-Davidson

FLHTK Ultra Limited

Base

2017-2019

Harley-Davidson

FLHTKL Ultra Limited Low

Base

2017-2021

Harley-Davidson

FLHTKSE CVO Limited

Base

2017-2025

Harley-Davidson

FLHX Street Glide

Base

2017-2023

Harley-Davidson

FLHXS Street Glide Special

Base

2017-2025

Harley-Davidson

FLHXSE CVO Street Glide

Base

2022-2023

Harley-Davidson

FLHXST Street Glide ST

Base

2025

Harley-Davidson

FLHXU Street Glide Ultra

Base

2024

Harley-Davidson

FLI Hydra-Glide Revival

Base

2015-2025

Harley-Davidson

FLRT Freewheeler

Base

2018-2021

Harley-Davidson

FLSB Sport Glide 107

Base

2018-2021

Harley-Davidson

FLSL Softail Slim 107

Base

2025

Harley-Davidson

FLSTFI Fat Boy Gray Ghost

Base

2020-2024

Harley-Davidson

FLTRK Road Glide Limited

Base

2022-2023

Harley-Davidson

FLTRKSE CVO Road Glide Limited

Base

2023-2025

Harley-Davidson

FLTRT Road Glide 3

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2025

Harley-Davidson

FLTRX Road Glide

Base

2025

Harley-Davidson

FLTRXRRSE CVO Road Glide RR

Base

2017-2023

Harley-Davidson

FLTRXS Road Glide Special

Base

2018-2025

Harley-Davidson

FLTRXSE CVO Road Glide

Base

2022-2023

Harley-Davidson

FLTRXST Road Glide ST

Base

2024-2025

Harley-Davidson

FLTRXSTSE CVO Road Glide ST

Base

2018-2020

Harley-Davidson

FXBB Street Bob 107

Base

2025

Harley-Davidson

FXBB Street Bob 117

Base

2021-2024

Harley-Davidson

FXBBS Street Bob 114

Base

2018-2019

Harley-Davidson

FXBR Breakout 107

Base

2023-2025

Harley-Davidson

FXBR Breakout 117

Base

2018-2020

Harley-Davidson

FXBRS Breakout 114

Base

2019-2020

Harley-Davidson

FXDRS FXDR 114

Base

2018-2019

Harley-Davidson

FXFB Fat Bob 107

Base

2018-2023

Harley-Davidson

FXFBS Fat Bob 114

Base

2018-2020

Harley-Davidson

FXLR Low Rider 107

Base

2020-2021

Harley-Davidson

FXLRS Low Rider S 114

Base

2022-2025

Harley-Davidson

FXLRS Low Rider S 117

Base

2022-2025

Harley-Davidson

FXLRST Low Rider ST 117

Base

2022

Harley-Davidson

FXRST Low Rider El Diablo 117

Base

2020-2024

Harley-Davidson

FXST Softail Standard 107

Base

## Details

- **Price:** 147.39 CAD
- **Vendor:** TwinPower
- **Type:** Gasket Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 147.39 CAD | In stock |

## Images

- Photo - Primary

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-17-up-m8-rocker-box-gasket-kit)
> Updated: 2026-07-14