# Twin Power 17-Up M8 107 CID Top End Gasket Kit Replaces H-D 25700729 3.937 Bore .030 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

2018-2020

Harley-Davidson

FLDE Deluxe 107

Base

2018-2019

Harley-Davidson

FLFB Fat Boy 107

Base

2018-2021

Harley-Davidson

FLHC Heritage Classic 107

Base

2017-2022

Harley-Davidson

FLHR Road King

Base

2019-2022

Harley-Davidson

FLHT Electra Glide Standard

Base

2017-2019

Harley-Davidson

FLHTCU Electra Glide Ultra Classic

Base

2017-2023

Harley-Davidson

FLHTCUTG Tri Glide Ultra

Base

2017-2020

Harley-Davidson

FLHTK Ultra Limited

Base

2017-2019

Harley-Davidson

FLHTKL Ultra Limited Low

Base

2017-2024

Harley-Davidson

FLHX Street Glide

Base

2017-2018

Harley-Davidson

FLRT Freewheeler

Base

2017-2019

Harley-Davidson

FLTRU Road Glide Ultra

Base

2017-2023

Harley-Davidson

FLTRX Road Glide

Base

2018-2020

Harley-Davidson

FXBB Street Bob 107

Base

2018-2019

Harley-Davidson

FXBR Breakout 107

Base

2018-2019

Harley-Davidson

FXFB Fat Bob 107

Base

2018-2020

Harley-Davidson

FXLR Low Rider 107

Base

2020-2024

Harley-Davidson

FXST Softail Standard 107

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-m8-107-cid-top-end-gasket-kit-replaces-h-d-25700729-3-937-bore-030-head-gasket)
> Updated: 2026-07-14