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Replacement for S&S billet aluminum rocker boxes only. Will not fit OEM Shovelhead rockerboxes.
S&S

S&S, rocker arm shaft set for S&S SH rocker boxes

#531372

Stock:Yes

Zinc plated. Slotted. OEM styling except the nuts which are Cap style, simular to stock but it is an all steel construction, and do not have the red plastic inserts. Complete set to fit left and right side of rocker boxes.
Colony

Colony, rocker shaft plug & nut kit. Slotted. Zinc

#929700

Stock:Yes

Over double the strength of the OEM shafts. Precision ground from 4140HT steel, gas nitrided and final surface treated. Kit includes includes 4x rocker arm shafts and 8x 12-point ARP bolts.
Feuling

Feuling, Gorilla Twin Cam rocker shaft & bolt kit - Late TC

#942493

Stock:Yes

Over double the strength of the OEM shafts. Precision ground from 4140HT steel, gas nitrided and final surface treated. Kit includes includes 4 rocker arm shafts. OEM replacement reference 17611-83A
Feuling

Feuling, Gorilla Twin Cam rocker shaft kit

#942491

Stock:Yes

Over double the strength of the OEM shafts. Precision ground from 4140HT steel, gas nitrided and final surface treated. Kit includes includes 4x rocker arm shafts and 8x 12-point ARP bolts. OEM replacement reference 17611-83 rocker arm shafts and 3500A bolts.
Feuling

Feuling, Gorilla Evo & early TC rocker shaft & bolt kit

#942492

Stock:Yes

Precision machined from a low alloy nickel, chromium, molybdenum case hardened steel. Offers .0005" parallel tolerance on the flats of the shafts. Perfect for performance applications with increased spring pressure. Upgraded replacement for 17300053 (front exh, rear int), 17300055 (front int, rear exh) and 17300059B (set). Note: See 585911 for identical rocker arm shaft kit, complete with mounting hardware.
Jims

JIMS, rocker arm shaft set for M8

#585912

Stock:Yes

Precision machined from a low alloy nickel, chromium, molybdenum case hardened steel. Offers .0005" paralell tolerance on the flats of the shafts. Complete with a special stud & nut kit from 4130 steel for precision 'torque steady' installation of the rocker arm shafts. Perfect for performance applications with increased spring pressure. Upgraded replacement for the OEM 17300053 (front exh, rear int), 17300055 (front int, rear exh) and 17300059B (set).
Jims

JIMS, rocker arm shaft kit & hardware for M8

#585911

Stock:Yes

Chrome plated. Styled after the Knucklehead rocker nuts. Complete set to fit the right side of the rocker cover.
Colony

Colony, rocker shaft plug set. Knuckle style. Chrome

#515965

Stock:Yes

Upgraded replacement for the OEM rocker shafts. With a 66% strength increase when compared to the OEM shafts for better reliability, especially in high lift/stress applications like exist with high-lift cams. Bearing quality steel and precision centerless ground. OEM replacement reference 17300053 (front exh, rear int), 17300055 (front int, rear exh) and 17300059B (set). Note: S&S advices to install these rocker arm shafts in combination with MCS 588917 rocker arm tower stud & nut kit.
S&S

S&S, M8 rocker arm shaft set

#917702

Stock:Yes

OEM style replacement. Repl. 17435-57B. Note: On 57-70 XL models the 71-85 end plug must be used.
MCS

Rocker arm shaft. import

#514365

Stock:Yes

Fits the now discontinued S&S 512491 / S&S 90-4305 billet rocker covers. 4 used.
S&S
Discontinued

S&S, large O-rings rocker shaft

#512504

Stock:No

7/16 x 3/4 x 0.025
MCS

Washer, rocker arm shaft. left/outside

#901010

Stock:Yes

Over double the strength of the OEM shafts. Precision ground from 4140HT steel, gas nitrided and final surface treated. Kit includes 4x rocker arm shafts only. Note: See 942490 for the complete Feuling Gorilla rocker shaft nut & stud kit
Feuling

Feuling, M8 Gorilla rocker shafts

#942489

Stock:Yes

Over double the strength of the OEM shafts. Precision ground from 4140HT steel, gas nitrided and final surface treated. Replaces the stock rocker arm shaft to rocker arm tower bolts. The one time installation of these studs help prevent damage to the rocker arm tower bolt threads and subsequent damage when rocker arms come loose. Especially advised when running high lift cams. Kit includes 4x rocker arm shafts, 8x studs, 8x 12-point nuts.
Feuling

Feuling, Gorilla M8 rocker shaft stud & nut kit

#942490

Stock:No

High quality OEM style replacement set. Repl. 17611-83.
S&S

S&S, rocker arm shaft set (4)

#531370

Stock:Yes

Chrome plated. Knucklehead styled plugs. Complete set to fit the rocker box on the right side. Custom replacement for 17448-71A.
Colony

Colony, rocker shaft end plug set. Knuckle style. Chrome

#515960

Stock:Yes

OEM style replacement. Repl. 17611-66B
MCS

Rocker arm shaft, import

#514360

Stock:Yes

Includes studs & 12-point nuts. Heat treated 8640 steel. Black oxide coating. Replacement for the stock rockerarm shaft to rocker arm tower bolts. The one time installation of these studs help prevent damage to the aluminum rocker arm tower bolt threads and consequent damage of rocker arms coming loose. Especially advised when running high lift cams. Heat treated 8640 steel with a black oxide finish. Offers a 14% increase in material strength over stock bolts. 5/16-16 UNC to 5/16-24 UNF threaded.
S&S

S&S, rocker arm tower stud & nut kit (8-pk)

#588917

Stock:Yes

OEM style replacement. Repl. 17611-83.
MCS

Rocker arm shaft. import

#906890

Stock:Yes