RCM Light Weight Alternator Pulley EJ20/25

Developed for the extreme power enthusiast, the RCM Light Alternator pulley reduces  reciprocating mass massively improving acceleration and engine response as well of giving your engine the Roger Clark Motorsport identity and seal of quality. 

Constructed from the highest quality aluminium, this pulley has been manufactured utilising the latest CNC techniques as used by today's leading Formula 1 teams.

After machining, pulleys are anodised using the latest military specification. 

Our kit retains the standard pulley diameter which allow the use of the existing auxiliary drive belt to ensure power steering and alternator speeds remain standard.

[ Designed to Not Run with Air Conditioning ]