S&S, 4" stroke flywheel assembly for Softail 00-06

Standard stroke for 88" engines. S&S rods do not have tapered wrist pin ends and are not compatible with stock H-D pistons or stock H-D sprocket shaft bearings. Balanced to 1230 grams total piston weight.
Note: Engines with strokes over 4" may require S&S piston oil jets and clearance notches between piston and jet in the piston skirt to avoid contact.
Note: S&S crankshaft pin journals allow the use of replaceable bearing bushes in the small end of the connecting rods. The first generation of S&S journals, in use until 2012, had a diameter of 1.500". The second generation of journals, in use since 2013, has the larger OEM diameter of 1.671". S&S and OEM journals are now identical in diameter, meaning S&S parts can be used to rebuild stock H-D flywheels, something that was previously not possible as H-D rebuild parts were not, and are not, available.
Note: The following applies to 03-17 models. S&S has designed these flywheels to work with a Timken style pinion shaft bearing; they fit 99-02 model year stock H-D cases and all S&S cases without modifications. Stock 03-17 H-D Twin Cam engines use the same pinion shaft roller bearing as used on the pinion shaft, a cheaper but weaker solution. It is possible to use the weak stock 03-17 pinion shaft bearing kit (OEM H-D 24004-03B) with S&S flywheels in 03-17 stock cases. However, S&S believes this roller bearing will not withstand the side loads produced in a high performance engine. S&S will not honour any warranty claim in an application where the 03-17 OEM 24004-03B/24605-07 pinion shaft roller style bearing assembly is used. To upgrade to the pre-2003 pinion shaft bearing style, the MCS 978517 JIMS conversion tool kit is available. This kit includes one tool, one Timken bearing and one steel crankcase bearing insert for one engine. Bearing inserts are only available as 978519, bearings only as 508960.
Note: In any and all applications, the technician must be able to judge the components for their suitability in combination with the other engine components, prior to installation. It is important that a qualified mechanic performs the installation and any necessary adjustments.


Specifications


Brand
S&S


Application
00-06 88" Softail (NU)


OEM
24004-03B, 24605-07


Sales unit
Set


Material
Steel


Packaging weight
17.609 kg


HS Code
84831021


Motorcycle family
SOFTAIL


Original name
S&S, 00-06 Softail 4" stroke flywheel assembly