S&S Cycle 99-06 BT 4 1/8in Low Compression Bore Cylinder & Pistons Kit For 124in Hot Set Up Kit
Why this price?
$1,643.95 is MSRP, the lowest price S&S Cycle lets us list it at. Additionally, Pro members get $131.52 back on this part.
$1,643.95 − $131.52 = $1,512.43
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to S&S Cycle, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with S&S Cycle, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
This big bore cylinder and piston kit contains S&S 4-1/8" bore cylinders and forged pistons, rings, wrist pins, head and base gaskets. Pistons are dished dome design intended for use with stock cylinder heads. The cylinders are machined with the stock bolt pattern and are intended for use in stock crankcases of 1999-'06 big twin engines. Designed for 4-5/8" stroke flywheels, resulting in 124" displacement. Cylinder finish is a durable wrinkle black powder coat. For best performance, appropriate camshafts, performance air cleaner, performance exhaust and fuel system tuning are required.
- Crankcases must be bored to accept the larger 4-1/8" bore cylinders
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2001,2003-2006 | Harley-Davidson | FLHR Road King | Base |
| 2004-2006 | Harley-Davidson | FLHRS Road King Custom | Base |
| 1999-2001,2003-2006 | Harley-Davidson | FLHT Electra Glide Standard | Base |
| 2003 | Harley-Davidson | FLHTC Electra Glide Classic | Base |
| 2006 | Harley-Davidson | FLHX Street Glide | Base |
| 2006 | Harley-Davidson | FLST Heritage Softail | Base |
| 2000-2006 | Harley-Davidson | FLSTC Heritage Softail Classic | Base |
| 2000-2006 | Harley-Davidson | FLSTF Fat Boy | Base |
| 2005-2006 | Harley-Davidson | FLSTN Softail Deluxe | Base |
| 2000-2003 | Harley-Davidson | FLSTS Heritage Springer | Base |
| 1999-2001 | Harley-Davidson | FLTR Road Glide | Base |
| 1999-2005 | Harley-Davidson | FXD Dyna Super Glide | Base |
| 2005 | Harley-Davidson | FXDC Super Glide Custom | Base |
| 1999-2005 | Harley-Davidson | FXDL Dyna Low Rider | Base |
| 1999-2005 | Harley-Davidson | FXDWG Dyna Wide Glide | Base |
| 2001 | Harley-Davidson | FXDWG2 CVO Dyna Wide Glide | Base |
| 2002 | Harley-Davidson | FXDWG3 CVO Dyna Wide Glide | Base |
| 1999-2005 | Harley-Davidson | FXDX Dyna Super Glide Sport | Base |
| 2004-2005 | Harley-Davidson | FXDXI Dyna Super Glide Sport | Base |
| 2001-2003 | Harley-Davidson | FXDXT Dyna Super Glide T-Sport | Base |
| 2000-2006 | Harley-Davidson | FXST Softail Standard | Base |
| 2000-2006 | Harley-Davidson | FXSTB Night Train | Base |
| 2001-2006 | Harley-Davidson | FXSTBI Night Train | Base |
| 2000-2006 | Harley-Davidson | FXSTD Softail Deuce | Base |
| 2000-2006 | Harley-Davidson | FXSTS Springer Softail | Base |
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