Alternator, Powermaster, 1954-88 GM, CS130 XS Volt, 140A, 6-rib Pulley

GM CS130 XS VOLT™ 140-Amp Alternator (6-Rib) by Powermaster®

95-amp idle output, a compact case and two cooling fans support low-speed charging.

This Powermaster® CS130 provides 95 amps at idle and 140 amps at top end, supporting charging and accessory loads at low engine speeds. Its compact 5.12-inch case and 6.61-inch straight mounting span offer a smaller-case option for compatible 10SI/12SI installations; pulley alignment and wiring still need to match. Internal and external fans move cooling air through the alternator to dissipate heat. The internally regulated XS VOLT™ design uses a one-wire charging connection. A rear screw adjusts the set point from 13.5 to 18.5 volts for 12-, 14- or 16-volt systems; set it to the battery and electrical-system requirements. The six-rib serpentine pulley is included. Each alternator is individually dyno-tested to document output.

• GM CS130-style applications; see full fitment list below • Output: 95 amps at idle, 125 at cruise and 140 at top end • 5.12-inch housing; 6.61-inch straight mounting span • Included six-rib serpentine pulley • Internal and external fans dissipate underhood heat • XS VOLT™: rear-adjustable 13.5-18.5V set point for 12/14/16V systems • Internal one-wire regulator; match the setting to the battery and system • Finish choices: chrome, black, natural • Individually dyno-tested to document charging output