WISECO
Piston Kit - 4.075" Bore - 117 CI - 114"/117" M8
Part # 0903-1678
$576.95
Earn store credit on this purchase
In Stock
- 60-day returns
- Free shipping over $100
- Secure checkout
Confirmed fit for 79 motorcycle configurations across Harley-Davidson, model years 2017–2025.
| Years | Make & Model |
|---|---|
| 2017-2024 | Harley-Davidson FLHTK Ultra Limited |
| 2017-2023 | Harley-Davidson FLHXS Street Glide Special |
| 2017-2023 | Harley-Davidson FLTRXS Road Glide Special |
| 2019-2022 | Harley-Davidson FLHT Electra Glide Standard |
| 2022-2023 | Harley-Davidson FLHXST Street Glide ST |
| 2017-2022 | Harley-Davidson FLHR Road King |
| 2022-2023 | Harley-Davidson FLTRXST Road Glide ST |
| 2022 | Harley-Davidson FXRST Low Rider El Diablo 117 |
| 2022-2025 | Harley-Davidson FXLRST Low Rider ST 117 |
| 2018-2024 | Harley-Davidson FLHCS Heritage Classic 114 |
| 2018-2023 | Harley-Davidson FXFBS Fat Bob 114 |
| 2022-2025 | Harley-Davidson FXLRS Low Rider S 117 |
| 2020-2021 | Harley-Davidson FXLRS Low Rider S 114 |
| 2018-2024 | Harley-Davidson FLFBS Fat Boy 114 |
| 2021-2024 | Harley-Davidson FXBBS Street Bob 114 |
| 2018-2020 | Harley-Davidson FXBRS Breakout 114 |
| 2019-2020 | Harley-Davidson FXDRS FXDR 114 |
| 2023-2025 | Harley-Davidson FXBR Breakout 117 |
- Fits OEM and Screamin’ Eagle cylinder heads.
- Features ArmorX™ piston coating for superior protection in extreme conditions and reduced wear
- ArmorFit™ skirt coating auto-adjusts to the cylinder wall so there’s no need to measure clearance; provides smooth, quiet, trouble-free operation
- Dome design for improved flame travel to maximize air/ fuel burn efficiency
- High compression (11:1) for added power
- Superfinish piston pin reduces friction and improves scuff resistance
- Enhanced pin oiling for improved lubrication and reduced friction
- Augmented ring land details improve ring seal and function
- Dedicated rings for precise fit, improved compression and oil control
- Kit includes two pistons, rings, piston pins and circlips
- Made in the USA
Customer Reviews
No reviews yet — be the first to review this part.
Overview
The WISECO 0903-1678: Piston Kit - 4.075" Bore - 117 CI - 114"/117" M8. Confirmed fit for 79 motorcycle configurations across Harley-Davidson, model years 2017–2025. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
More from WISECO
WISECO · B1001
WISECO B1001 Top End Bearing - 15 mm x 19 mm x 17.3 mm
In Stock$25.95
WISECO · B1014
WISECO B1014 Top End Bearing - 18 mm x 23 mm x 22 mm
In Stock$25.95
WISECO · 2756XC
WISECO 2756XC Ring Set
In Stock$47.65
WISECO · 0903-0303
WISECO 0903-0303 Piston Kit with Gaskets - 48.00 mm - Suzuki RM85
Low Stock (6)$186.95
WISECO · 0926-1748
WISECO 0926-1748 Intake Valve - Yamaha YFM660F/YFM660R/YXR660
Low Stock (5)$38.95
WISECO · 0903-1594
WISECO 0903-1594 Tracker™ Series Piston Kit - 3.937"- 96 Cubic Inch Bored to 106 Cubic Inch - Twin Cam
In Stock$351.95
WISECO · 0912-0927
WISECO 0912-0927 Ring Set
Low Stock (9)$52.95
WISECO · CW14
WISECO CW14 Circlip
In Stock$2.99
Fits these motorcycles
- Harley-Davidson FLHTK Ultra Limited
- Harley-Davidson FLHXS Street Glide Special
- Harley-Davidson FLTRXS Road Glide Special
- Harley-Davidson FLHT Electra Glide Standard
- Harley-Davidson FLHXST Street Glide ST
- Harley-Davidson FLHR Road King
- Harley-Davidson FLTRXST Road Glide ST
- Harley-Davidson FXRST Low Rider El Diablo 117
- Harley-Davidson FXLRST Low Rider ST 117
- Harley-Davidson FLHCS Heritage Classic 114
- Harley-Davidson FXFBS Fat Bob 114
- Harley-Davidson FXLRS Low Rider S 117
- Harley-Davidson FXLRS Low Rider S 114
- Harley-Davidson FLFBS Fat Boy 114
- Harley-Davidson FXBBS Street Bob 114
- Harley-Davidson FXBRS Breakout 114
- Harley-Davidson FXDRS FXDR 114
- Harley-Davidson FXBR Breakout 117