Harley-Davidson High Performance Starter Motor BL 91-93 Big Twin Touring Dyna ST

Part number 31553-90A a Harley-Davidson Starter Motor, an essential component for engine ignition used in various older Big Twin models. 

Product Specifications

Voltage: 12V

Power Output: 1.4 kW

Rotation: Clockwise (CW)

Design Type: OSGR (Offset Gear Reduction)

Tooth Count: 18 teeth on the drive pinion

Output Shaft Hole: Features a 1/4-20 large hole on the output shaft (early style) 

• High Torque
• Black Finish

The Harley-Davidson part number 31553-90A (1.2 kW to 1.4 kW starter motor) is designed to fit a wide range of 1991–1993 Harley-Davidson Big Twin models equipped with the 1340cc Evolution engine.

Compatible Models

The starter motor is a direct replacement for the following models:

Touring Models (1991–1993):

Electra Glide Standard (FLHS): 1991–1993

Electra Glide Classic (FLHTC): 1991–1993

Electra Glide Ultra Classic (FLHTCU/I): 1991–1993 (carbureted and early fuel-injected versions)

Tour Glide Classic (FLTC): 1991–1993

Tour Glide Ultra Classic (FLTCU): 1991–1993

Road King (FLHR): 1994 (While the P/N ends in '90A', this specific iteration fits this later model year)

Dyna Models (1991–1993):

Dyna Daytona (FXDB): 1992

Dyna Sturgis (FXDB): 1991

Dyna Glide Custom (FXDC): 1993

Dyna Low Rider (FXDL): 1993

Dyna Wide Glide (FXDWG): 1993

Softail Models (1991–1993):

Softail Heritage Classic (FLSTC): 1991–1993

Softail Fat Boy (FLSTF): 1991–1993

Softail Nostalgia (FLSTN): 1993

Softail Custom (FXSTC): 1991–1993

Softail Springer (FXSTS): 1991–1993

Key Fitment Notes

Engine Type: This starter is primarily for the 1340cc Evolution Big Twin engine.

Output Shaft: It features the early style 1/4-20 large hole on the output shaft.

Gear Teeth: It typically has an 18-tooth pinion gear.

Selling as pictured.

More than welcome to pick up at shop in butler pa & save shipping.

Nos Trailer 

010926-JM16