Jims Catalogue

CRANK PINS

2429 2430 2438 2431 2432

All crank pins are precision manufactured here in Camarillo, California. We start with a special order of steel from an American foundry, then saw, turn, mill, and grind all on numerical controlled machines. From sawing to the final phase of machining, each part is thoroughly inspected and after heat treating, all threads go through a special process to make them withstand greater torque stress. On crank pins, approximately 50% more torque can be applied. All flywheel shafts are ground to a 16 micron finish or better unless otherwise specified. All ground diameters are concentric to within .0003” or less, in order to simplify all phases of flywheel truing and rebuilding. We strongly recommend using JIMS ® high performance nuts in combination with our crank pins. CRANK PINS BIG TWIN 1941-EARLY 1981 BIG TWIN LATE 1981-PRESENT SINGLE CAMONLY

EARLY BIG TWIN MODELS - COMPLETE CRANK PIN KITS INCLUDES AFTERMARKET FLYWHEELS

Kit Includes:

Year/ Application

2 3 Oiling Holes

Part No.

O.D.

Crank Pin Crank Pin Nuts Woodruff Key

2429

Big Twin 1941-Early 81 X

1 -2186 (H-D ® No.23985-18)

2 -23966-54A

1 -23961-412

1.2490”

13

2430

Big Twin 1941-Early 81

1 -2186 (H-D ® No.23985-18)

2 -23966-54A

1 -23961-413

X 1.2490”

2438

1 -23961-41 1”-20 threads

Big Twin 1941-Early 81 X

1 -2186 (H-D ® No.23985-18)

*2 -23969-83

1.2490”

*CAUTION! On pre-1956 models, check nut to case clearances.

LATE BIG TWIN MODELS - COMPLETE CRANK PIN KITS INCLUDES AFTERMARKET FLYWHEELS

Kit Includes:

Year/

Oiling Holes

Part No.

O.D.

Application

Crank Pin Crank Pin Nuts Woodruff Key

2 3

2431

Big Twin single cam Late 1981-99 Big Twin single cam Late 1981-99

1 -2187 (H-D ® No.11218)

2 - 23969-83

1 -23961-80A2

1.2495”

X

2432

1 -2187 (H-D ® No.11218)

2 - 23969-83

1 -23961-80A3

X 1.2495”

74