Powermaster Alternator - 12V - 6 Rib Serpentine Pulley - Aluminum - GM BR40072 Commonly used to replace OE

Commonly used to replace OE style “pigtail” lower spring mount

Xtreme Anti-Roll

275 in Valve Stem

0L Modular

Tester checks cylinder compression from 0 to 300 PSI and features an air-hold valve to reset gauge

Powermaster Alternator - 12V - 6 Rib Serpentine Pulley - Aluminum - GM BR40072 Commonly used to replace OEProduct Description: Alternator AD230 165 amps 12V 16V 1 Wire 6 Rib Serpentine Pulley Aluminum Case Natural GM Sold Individually Powermaster produces alternators and starters for both street rod and racing applications. They also offer related accessories, including brackets, wiring harnesses, pulleys, and drive kits. Powermaster Motorsports is the leader in high performance alternators and starters for auto racing.