ARP MAINS NUT SET - COOPER S ONLY

$124.50 Inc GST
Part Number: C-AJJ4013

 

ARP mains nut set - Cooper S only.

On all performance A series engines it is essential to ensure accurate and as near permanent location of the center main bearing of the crankshaft as possible.

Flexing allowed here, especially at sustained high RPM levels, can cause spun bearings, crank or main cap breakage with severe or mortal damage to the engine.