S&S Cycle

1999–2006 big twins

FITMENT • 1999–'06 Harley-Davidson® big twins—Balanced and unbalanced models • S&S T-Series Engine and Hot Set Up Kit® replacement flywheels FEATURES AND BENEFITS • Heat-treated 4140 material is harder and 114% stronger than stock • Harder material, no thrust washers required— Where stock flywheels have thrust wash- ers, S&S flywheels have steel gripping the crankpin • Larger 1.671" diameter crankpin —increased contact area and tighter press fit for a stronger joint. No welding required! • Integral mainshafts —eliminates two potential points of weakness • Consistent balance and precision machining— Truer flywheels and less vibratio n • Reduced mainshaft deflection at high rpm— less vibration, reduced piston and rod side thrusting, prevents oil pump damage, fully compatible with gear drive cams • Capable of higher rpm —More available power! 3 PIECE FLYWHEEL ASSEMBLIES

96 ™ /103 ™ /110 ™ Street Rod ™ Milwaukee-Eight ® 1999–2006 Twin Cam 88 ® 1986–2019 Sportster ® & Buell ® Indian ® Models

USPATENTPENDING 3 PIECE FLYWHEEL exclusive

2007–2017 Twin Cam

320-0460

FLYWHEEL ASSEMBLIES

1999–2006 HD® big twin models (except 2006 Dyna® models)

2006 HD® Dyna® models

Sprocket Bearing Race

Engine Displacement

Stroke

Total Piston Weight

Total Piston Weight

TC 88®

TC 88B™

Part #

Yes*

1230 1230

1230 1230

320-0402 USA 320-0403 USA

320-0396 USA 320-0397 USA

320-0392 USA 320-0393 USA

88, 95, 97, 100 w/ Stock or S&S® Pistons 96, 103,CVO 103, 106 big bore, 110, 117 w/ Stock or S&S® Pistons S&S® 106 Stroker**

4"

2014–2019 Street ® &

No

320-0360

320-0354

320-0350

Yes*

1035

1035

43/8"

320-0361 320-0460 320-0417

320-0355 320-0454

320-0351 320-0450 320-0407

No

1035

1035

41/2" 41/8"

No No

1108 1035

1108 1035

–

S&S® 111

SE 120R (uses 7.575" length rods) †

320-0525

320-0527

320-0523

45/8"

No

1035

1035

320-0475 320-0552 329-0002

320-0469

320-0464

S&S® 124

45/8" 45/8"

No No

1035 1290

1035

–

–

S&S® T143

–

329-0002

329-0002

Special Order

Specify Specify Specify

Specify

Note: All S&S flywheel assemblies for 1999–'06 engines have connecting rods with 7.667” length and full width straight wristpin ends. *Flywheel assemblies supplied with sprocket shaft bearing race installed are compatible with stock roller style sprocket shaft bearings. Assemblies with no race require a Timken® sprocket shaft bearing. **41/2" stroke flywheels for 2006 Dyna® include 7.667" long connecting rods.

Tools & Shop Supplies

† These flywheels are replacement flywheels for the SE 120R. When installing these flywheels in a Harley-Davidson® case, they need to run the HD piston oiling jets— not the S&S® piston oiling jets. Engines with strokes over 4" may require S&S® piston oiling jets (p/n 31-2026) and piston to jet clearance notches in the piston skirt to avoid contact. Main Bearing Note: Most S&S flywheel assemblies for 1999–'16 big twin engines are designed for use with Timken® sprocket shaft bearings. They will fit directly in stock 1999–’02 Harley-Davidson® crankcases and in all S&S crankcases for 1999–'15 big twin engines, with no modifications. However, stock 2003 and later engines use a roller type bearing for the sprocket shaft. S&S does offer flywheel assemblies that are compatible with late roller style stock sprocket shaft bearings, but they are not recommended for very large, high performance engines. S&S strongly recommends retrofitting 2003–'16 model crankcases to accept a Timken sprocket shaft bearing. A Timken conversion sleeve such as Screamin' Eagle® #34822-08 or Jim's® #956 may be used. A charging system spacer for 1999–'02 model year is also required. If you choose not to convert your crankcases to a Timken sprocket shaft bearing, S&S flywheels may be used in 2003 and later engines by either purchasing the stock compatible flywheels or by installing Harley-Davidson® bearing kit #24004-03B when using S&S flywheels designed for Timken bearings. This bearing kit adapts the S&S sprocket shaft so it is compatible with stock roller type bearings. Verify that the bearing kit contains the 24604-00D or 24607-07 sprocket shaft bearing. Do not use a 24604-00, 24604-00A, 24604-00B or 24604-00C bearing. Please be advised that if this type of bearing is used, sprocket shaft bearing failure WILL NOT be covered under warranty.

NOTES

Warranty & Company Policy

Index

Appendix &

TRYING TO IDENTIFY AN S&S® FLYWHEEL? SEE FLYWHEEL I.D. CHART ON PAGE 342

REPLACEMENT PARTS: SEE PAGE 214

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