These forged, 4″ bore flat-topped pistons are intended for use in S&S® 4″ bore Super Sidewinder® engines as well as other custom 4″ bore engines.
- Piston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacement
- Made in the U.S.A
NOTES: Recommended Piston Fitment: Close: 0.0020″-0.0025″ Loose: 0.0037″-0.0045″
Fitment Guide
| 1999 | Harley-Davidson | Softail Night Train FXSTB | – | – |
| 1999 | Harley-Davidson | Super Glide Sport FXDX | – | – |
| 1998-1999 | Harley-Davidson | Road Glide FLTR | – | – |
| 1998-1999 | Harley-Davidson | Road Glide EFI FLTR | – | – |
| 1997-1999 | Harley-Davidson | Softail Heritage Springer FLSTS | – | – |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic EFI FLTCU | – | – |
| 1995-1999 | Harley-Davidson | Dyna Convertible FXDS-CONV | – | – |
| 1995-1999 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | – | – |
| 1995-1999 | Harley-Davidson | Road King Classic EFI FLHRC | – | – |
| 1995-1999 | Harley-Davidson | Super Glide FXD | – | – |
| 1995-1999 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | – | – |
| 1995-1999 | Harley-Davidson | Road King EFI FLHR | – | – |
| 1995-1999 | Harley-Davidson | Electra Glide Police FLHTPI | – | – |
| 1995-1997 | Harley-Davidson | Softail Bad Boy FXSTSB | – | – |
| 1994-1999 | Harley-Davidson | Road King FLHR | – | – |
| 1994-1996 | Harley-Davidson | Softail Heritage Special FLSTN | – | – |
| 1993-1999 | Harley-Davidson | Wide Glide FXDWG | – | – |
| 1993-1999 | Harley-Davidson | Low Rider FXDL | – | – |
| 1993 | Harley-Davidson | Softail Nostalgia FLSTN | – | – |
| 1992 | Harley-Davidson | Dyna Daytona FXDB | – | – |
| 1992 | Harley-Davidson | Dyna Glide Custom FXDC | – | – |
| 1991 | Harley-Davidson | Dyna Sturgis FXDB | – | – |
| 1990-1999 | Harley-Davidson | Softail Fat Boy FLSTF | – | – |
| 1990-1991 | Harley-Davidson | Low Rider Convertible FXRS-CONV | – | – |
| 1989-1999 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | – | – |
| 1989-1996 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | – | – |
| 1988-1999 | Harley-Davidson | Softail Springer FXSTS | – | – |
| 1987-1993 | Harley-Davidson | Electra Glide Sport FLHS | – | – |
| 1987-1991 | Harley-Davidson | Low Rider Custom FXLR | – | – |
| 1987 | Harley-Davidson | Low Rider Chrome FXRC | – | – |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC | – | – |
| 1986-1999 | Harley-Davidson | Softail Heritage Classic FLSTC | – | – |
| 1986-1991 | Harley-Davidson | Super Glide FXR | – | – |
| 1986-1991 | Harley-Davidson | Low Rider FXRS | – | – |
| 1986-1991 | Harley-Davidson | Low Rider Sport FXRS-SP | – | – |
| 1986-1990 | Harley-Davidson | Softail Heritage FLST | – | – |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRD | – | – |
| 1985 | Harley-Davidson | Low Glide Custom FXRC | – | – |
| 1984-1999 | Harley-Davidson | Electra Glide Classic FLHTC | – | – |
| 1984-1999 | Harley-Davidson | Softail Standard FXST | – | – |
| 1984-1999 | Harley-Davidson | Electra Glide Police FLHTP | – | – |
| 1984-1994 | Harley-Davidson | Tour Glide Classic FLTC | – | – |
| 1984-1991 | Harley-Davidson | Sport Glide FXRT | – | – |
| 1984-1991 | Harley-Davidson | FXRP | – | – |
| 1984-1987, 1995-1999 | Harley-Davidson | Electra Glide Standard FLHT | – | – |
| 1984-1986 | Harley-Davidson | Tour Glide FLT | – | – |
| 1984-1985 | Harley-Davidson | Electra Glide FLH | – | – |
| 1984-1985 | Harley-Davidson | Electra Glide Special FLHX | – | – |
| 1984-1985 | Harley-Davidson | Low Glide FXRS | – | – |
| 1984 | Harley-Davidson | Disc Glide FXRDG | – | – |
Specs
| PRODUCT NAME | PISTON KIT |
| TYPE | REPLACEMENT |
| PISTON MATERIAL | FORGED |
| BORE SIZE | 4.000″ |
| BORE – OVERSIZE | +0,010″ |
| BORE OVERSIZE | +0.010″ |
| DISPLACEMENT | 113″ |
| STROKE LENGTH | 4-1/2″ |
| PISTON HEAD SHAPE | FLAT TOP |
| UNITS | KIT |
| RIDING STYLE | STREET |
Fast Delivery and professional packaging
We provide a variety of shipping options thanks to our long-standing partnerships with UPS, FedEx and DHL. Our warehouse staff will package every item to our exacting specifications. The goods you send us are checked thoroughly and secured properly prior to shipping. We deliver to thousands of customers daily across various countries. The fact that we're dedicated to becoming the largest online retailer in the World is obvious. There are distribution centers as well as warehouses located in Europe as well as the USA.
Note: Orders containing more than one item will be assigned a different processing time for each item.
Before shipping, all ordered items will be thoroughly examined. The majority of orders will be sent within 48 hours. The delivery time should be between 3 and 7 working days.
Returns
We don't control the inventory in our factory and warehouse. The actual inventory may fluctuate at any time. Please be aware that it is possible that your order will run out of stock even after you have made the order.
Our policy lasts for 30 days. We cannot replace or refund your purchase when it's been 30 days from the date of purchase.
You are able to return a product if it is unused and in the same condition when you first received it. It should also be returned in the original packaging.
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