WK1666 1340 Evo B.T. high compression piston kit. +.010"
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Wiseco
- Part Number
- WK1666
- OEM Reference
- —
- Pack Quantity
- Sold as kit
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
This Wiseco forged aluminum piston kit is designed for 1984 to 1999 Evolution Big Twin engines that need a .010" oversize. The domed design provides a 10:1 high-compression ratio, which is a great way to boost performance while remaining compatible with your stock cylinder heads. Forged pistons offer better structural integrity for high-performance applications compared to standard cast pistons. This kit is sold as a set and includes all the necessary components for a top-end refresh, including wrist pins, circlips, and Hastings rings. The ring configuration uses 1.6mm top and middle ringlands and a 4.0mm oil ring, providing an excellent seal for your rebuilt Evo motor.
Manufacturer part number: WK1666.
Fitment
57 models84-99 Evo Big Twin
Dyna 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1992 | Dyna Daytona FXDB |
| Harley-Davidson | 1993–1999 | Dyna Low Rider FXDL |
| Harley-Davidson | 1991 | Dyna Sturgis FXDB |
| Harley-Davidson | 1995–1996 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1995–1999 | Dyna Super Glide FXD |
| Harley-Davidson | 1999 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 1993–1999 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 1992 | Super Glide Custom FXDC |
FXR 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1989–1990 | FXR Convertible FXRS |
| Harley-Davidson | 1985–1987 | FXR Custom FXRC |
| Harley-Davidson | 1984–1990 | FXR Low Glide FXRS |
| Harley-Davidson | 1988–1990 | FXR Low Rider FXLR |
| Harley-Davidson | 1986–1993 | FXR Sport FXRS-SP |
| Harley-Davidson | 1986–1990 | FXR Super Glide FXR |
| Harley-Davidson | 1986 | FXR Touring FXRD |
| Harley-Davidson | 1984–1990 | FXR Touring FXRT |
| Harley-Davidson | 1991–1992 | Low Rider Convertible FXRS |
| Harley-Davidson | 1991–1992 | Low Rider Custom FXLR |
| Harley-Davidson | 1991–1992 | Low Rider FXRS |
| Harley-Davidson | 1991–1993 | Low Rider Sport Edition FXRS-SP |
| Harley-Davidson | 1991–1992 | Sport Glide FXRT |
| Harley-Davidson | 1991–1994 | Super Glide FXR |
| Harley-Davidson | 1993–1994 | Super Glide Low Rider FXLR |
FXR Police 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1995 | Police Low Rider FXRP |
| Harley-Davidson | 1991–1994 | Super Glide Police (Fairing) FXRP |
| Harley-Davidson | 1991–1994 | Super Glide Police (Windshield) FXRP |
Softail 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–1999 | Fat Boy FLSTF |
| Harley-Davidson | 1985 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1984–1986 | FX Wide Glide FXWG |
| Harley-Davidson | 1991–1999 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1993–1996 | Heritage Softail Nostalgia FLSTN |
| Harley-Davidson | 1997–1999 | Heritage Springer FLSTS |
| Harley-Davidson | 1999 | Night Train FXSTB |
| Harley-Davidson | 1987–1999 | Softail Custom FXSTC |
| Harley-Davidson | 1990 | Softail Fat Boy FLSTF |
| Harley-Davidson | 1988–1990 | Softail Heritage Classic FLSTC |
| Harley-Davidson | 1986–1990 | Softail Heritage FLST |
| Harley-Davidson | 1988–1990 | Softail Springer FXSTS |
| Harley-Davidson | 1984–1999 | Softail Standard FXST |
| Harley-Davidson | 1991–1999 | Springer Softail FXSTS |
| Harley-Davidson | 1995–1997 | Springer Softail FXSTSB |
Super Glide 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1997–1999 | Dyna Super Glide Convertible FXDS |
| Harley-Davidson | 1993 | Super Glide Convertible FXRS |
Touring 14 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991–1999 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Electra Glide FLHT |
| Harley-Davidson | 1992–1994 | Electra Glide Sport FLHS |
| Harley-Davidson | 1995–1999 | Electra Glide Standard FLHT |
| Harley-Davidson | 1984 | Glide Classic FLHT |
| Harley-Davidson | 1998–1999 | Road Glide FLTR |
| Harley-Davidson | 1998–1999 | Road Glide FLTRI |
| Harley-Davidson | 1998–1999 | Road King Classic FLHRCI |
| Harley-Davidson | 1993–1999 | Road King FLHR |
| Harley-Davidson | 1984–1990 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984–1990 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1988 | Touring Electra Glide Standard FLHT |
| Harley-Davidson | 1991–1997 | Ultra Classic FLHTCU |
| Harley-Davidson | 1995–1999 | Ultra Classic FLHTCUI |
Related Products
View all →More from Wiseco
View all →Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.