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Special 2-piece design compression release socket kit which allows you to install and remove 915195 S&S compression releases with engine mounted in the frame in most applications.
S&S

S&S, compression release socket kit

#915199

Stock:Yes

Electrically operated. Large displacement / high compression Twin Cam motors with S&S cylinder heads can sometimes be troublesome to start. These electrical operated compression release valves are opened by two separate solenoids, when the starterbutton is activated. When starter button is released the release valves close. Note 1: Will only work with S&S Twin Cam style heads. OEM heads will not have enough material in critical areas to allow machining. Note 2: All 89cc S&S TC cylinder heads are machined at the S&S factory. Machining on the 79cc S&S TC heads is optional. Note 3: Will only work with S&S style rocker covers 'with the central hole' which provides the necessary clearance for the solenoids. Note 4: For replacement parts see 531408 (compression release assembly), 531407 (wiring harness) and 531422 (silicone solenoid caps).
S&S

S&S, compression release kit for S&S T-style heads

#915195

Stock:Yes

Used to plug the hole when compression releases are not or no longer used. 9/16-20 threaded.
S&S

S&S, compression release hole plug

#915209

Stock:Yes

High quality and M10x1 threaded. Easy electric starting of big and high compression motors. Push to activate and auto-close. With 5-7 Newton closing force, for high performance applications. Knobs are molded for 'a cool touch' and easy operation with a warm engine. KPMI brand embossed. A: M10x1 threaded. B: 1.730" Overall length. C: Thread length 0.350".
Kibblewhite

KPMI, Twin Cam compression release valve set

#569220

Stock:Yes

High quality and M10x1 threaded. Easy electric starting of big and high compression motors. Push to activate and auto-close. With 5-7 Newton closing force, for high performance applications. Knobs are molded for 'a cool touch' and easy operation with a warm engine. KPMI brand embossed. A: M10x1 threaded. B: 1.400" Overall length. C: Thread length 0.350".
Kibblewhite

KPMI, Evo compression release valve set

#569219

Stock:Yes

High quality and M10x1 threaded. Easy electric starting of big and high compression motors. Push to activate and auto-close. With 5-7 Newton closing force, for high performance applications. Knobs are molded for 'a cool touch' and easy operation with a warm engine. KPMI brand embossed. A: M10x1 threaded. B: 1.750" Overall length. C: Thread length 0.500". Note: for 84-99 Evo B.T. see 569219. For 99-17 Twin Cam see 569220.
Kibblewhite

KPMI, compression release valve set

#569221

Stock:Yes

Replacement part for 915195 S&S electric compression release kit.
S&S

S&S, replacement silicone solenoid caps

#531422

Stock:No

Replacement part for 915195 S&S electric compression release kit.
S&S

S&S, compression release assembly (electric)

#531408

Stock:Yes

10x1.0mm threaded mechanical compression release valves, for most cylinder heads. Push-in the button and pressure will vent out of the valve. When the engine starts, the valves automatically close. Designedl for hard starting high compression motors. Note: MCS 978425 thread tap tool (10x1.0mm) and 978424 drill fixture tool are separately available to aid installation in Twin Cams.
Jims

JIMS, compression release valve set

#978426

Stock:Yes