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White color coded for size. Complete kit for scratch builds or rebuilds. Complete with all components on the pinion shaft. Note: Kit must be used with a 73-99 B.T. style oil pump driven gear (S&S 531209 / OEM 26345-73). Note: 54-E77 B.T. kit can be used in 54-72 engines to speed-up stock oil pump RPM by 25%, like is stock in the later 73-E77 B.T. models. Note: Available in 531954 White, smallest / 531955 Brown, 1-step larger than White / 531956 Yellow, 1-step larger than Brown. Note: If the stock gear is unmarked and the size is unknown or you are scratch building an engine and without gear, S&S recommend a gear in the middle of the size range. These sizes were used more often and should provide adequate gear clearance under most circumstances. When in doubt, use a gear from the middle to the small side of the range, because a combination of looser fitting smaller gears will give a harmless clicking sound but to tight can cause a wining sound, binding and premature wear. Consult the factory service manual for information on optimum cam gear to pinion gear fit instructions before you order.
S&S

S&S, 54-E77 B.T. pinion shaft gear kit. White

#531954

Stock:Yes

Repl. 7913. Note: Nut has left hand thread.
S&S

S&S, nut. Pinion shaft gear

#531314

Stock:Yes

Fits S&S B, SB and OEM flywheels. Repl. for OEM 24005-57.
S&S

S&S, pinion shaft assembly 57-76 XL

#531983

Stock:Yes

Yellow color coded for size. Complete kit for scratch builds or rebuilds. Complete with all components on the pinion shaft. Note: Kit must be used with a 73-99 B.T. style oil pump driven gear (S&S 531209 / OEM 26345-73). Note: 54-E77 B.T. kit can be used in 54-72 engines to speed-up stock oil pump RPM by 25%, like is stock in the later 73-E77 B.T. models. Note: Available in 531954 White, smallest / 531955 Brown, 1-step larger than White / 531956 Yellow, 1-step larger than Brown. Note: If the stock gear is unmarked and the size is unknown or you are scratch building an engine and without gear, S&S recommend a gear in the middle of the size range. These sizes were used more often and should provide adequate gear clearance under most circumstances. When in doubt, use a gear from the middle to the small side of the range, because a combination of looser fitting smaller gears will give a harmless clicking sound but to tight can cause a wining sound, binding and premature wear. Consult the factory service manual for information on optimum cam gear to pinion gear fit instructions before you order.
S&S

S&S, 54-E77 B.T. pinion shaft gear kit. Yellow

#531956

Stock:Yes

STD size: .250" OD x .360". Used on left crankcase 45" side valve (24 used).
MCS

Pinion shaft (left side) crankcase rollers. +.0008"

#969325

Stock:Yes

For reference: Standard size is .250" OD x .550" long. Used as pinion shaft crankcase rollers (12 used) and the long connecting rod rollers (12 used).
MCS

Pinion shaft (right side) & long conrod rollers, +.0004"

#969244

Stock:Yes

Replacement for JIMS pinion shafts MCS 509909 37-73 45" Flathead (Repl. 24005-37), MCS 510534 54-57 B.T. (Repl. 24006-54A) and MCS 510585 58-72 B.T. (Repl. 24006-58). Note: These 'no hole' plugs can only be used with side oilers. 73-up models need a hole to provide lubrication to the connecting rods.
Jims

JIMS, pinion shaft plug (side-oilers)

#978402

Stock:Yes

Fits S&S pinion and sprocket shafts with S&S SM/SG 5-piece flywheels.
S&S

S&S, sprocket/pinion shaft key

#531886

Stock:Yes

Replacement for S&S 5-piece flywheels for OEM Twin Cam B engines (with balancers).
S&S

S&S, pinion shaft. TCB

#512437

Stock:No

Use 24016-80 JIMS nut (MCS 978261) for flywheel side. Use 24023-54 JIMS nut (MCS 978263) on pinion gear side. Includes metered oil hole screw. Repl. 24006-87 pinion shaft.
Jims

JIMS, pinion shaft. 87-89 B.T.

#507480

Stock:Yes

Use 23985-12 key (MCS 517945) and 7974 nut (MCS 981184). Side oiling. Repl. 24005-37 (355-37/C).
Jims

JIMS, pinion shaft. 37-73 45" Flatheads

#509909

Stock:No

Crankpin & pinion shaft. Repl. 11218.
S&S

S&S, woodruff key

#512483

Stock:Yes

Without locking detents. Steel. In crankcase. Standard O.D. size is 2.1270".
Jims

JIMS, pinion shaft bushing. +.002"

#518138

Stock:Yes

With locking detents. Steel. In crankcase. Standard O.D. size is 2.1270".
Jims

JIMS, pinion shaft bushing. +.032"

#518136

Stock:Yes

Without locking detents. Steel. In crankcase. Standard O.D. size is 2.1270".
Jims

JIMS, pinion shaft bushing. +.010"

#518139

Stock:Yes

Replacement for S&S 5-piece flywheels for OEM Twin Cam A engines (without balancers).
S&S

S&S, pinion shaft TCA

#512436

Stock:No

End oiling. Same as MCS 518026 JIMS pinion shaft, but complete as kit. This kit includes all parts that are required for assembly. Parts shown here as 'replacement parts' are included by JIMS in this kit. Parts are shown for reference only and not necessarily of JIMS brand. Replacement parts: 518026 24006-73 pinion shaft only; 978258 24023-36 nut, flywheel side; 978263 24023-54 nut, pinion side; 517945 23985-12 woodruff key; 517955 23985-54 woodruff keys (2); 519006 24692-58 washers (2); 508565 11007 retaining ring.
Jims

JIMS, pinion shaft kit. 73-E81 B.T.

#518027

Stock:No

Bronze. Used in cam cover. OEM style replacement for 25593-52.
MCS

Pinion shaft bushing. std. size

#518088

Stock:Yes

Without locking detents. Steel. In crankcase. Standard O.D. size is 2.1270".
Jims

JIMS, pinion shaft bushing. +.032"

#518140

Stock:Yes

Without locking detents. Steel. In crankcase. Standard O.D. size is 2.1270".
Jims

JIMS, pinion shaft bushing. Std size

#518137

Stock:No