# Twin Power 17-Up M8 114 CID Top End Gasket Kit Replaces H-D 25700729 4.0 Bore .040 Head Gasket

Ideal for top-end rebuilds, performance upgrades, or routine refreshes across multiple Harley engine platforms

-   Ideal for top-end rebuilds, performance upgrades, or routine refreshes across multiple Harley engine platforms
-   Application specific kits matched to bore size, engine family, and compression/head gasket thickness
-   Provide the primary gaskets and seals from the base gasket up through the rocker boxes
-   Made in USA

This Part Fits:

Year

Make

Model

Submodel

2018-2024

Harley-Davidson

FLFBS Fat Boy 114

Base

2018-2024

Harley-Davidson

FLHCS Heritage Classic 114

Base

2023

Harley-Davidson

FLHFB Electra Glide Highway King

Base

2017-2025

Harley-Davidson

FLHRXS Road King Special

Base

2019-2022

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2023

Harley-Davidson

FLHTCUTG Tri Glide Ultra

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

2017-2023

Harley-Davidson

FLHXS Street Glide Special

Base

2017-2024

Harley-Davidson

FLHXSE CVO Street Glide

Base

2024

Harley-Davidson

FLI Hydra-Glide Revival

Base

2017-2025

Harley-Davidson

FLRT Freewheeler

Base

2020-2024

Harley-Davidson

FLTRK Road Glide Limited

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2020

Harley-Davidson

FLTRX Road Glide

Base

2017-2023

Harley-Davidson

FLTRXS Road Glide Special

Base

2021-2024

Harley-Davidson

FXBBS Street Bob 114

Base

2018-2020

Harley-Davidson

FXBRS Breakout 114

Base

2019-2020

Harley-Davidson

FXDRS FXDR 114

Base

2018-2023

Harley-Davidson

FXFBS Fat Bob 114

Base

## Details

- **Price:** 409.6 CAD
- **Vendor:** TwinPower
- **Type:** Gasket Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 409.60 CAD | In stock |

## Images

- User 3

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/twin-power-17-up-m8-114-cid-top-end-gasket-kit-replaces-h-d-25700729-4-0-bore-040-head-gasket)
> Updated: 2026-07-14