Penntex PX-3S Alternator

This Penntex replacement for the PX-3S series alternator will fit many truck and bus applications that use the common J-180 mounting style. All of the Penntex alternators are externally regulated. The regulator is available as an option below. Feel free to call us at (909) 794-1600 if you have any questions.

NOTE: All Penntex alternators are externally regulated. The regulator is usually located inside the passenger compartment of the vehicle. If you are unsure which component is bad, please use our testing checksheet to determine whether the alternator or regulator is bad. CLICK HERE to get printable test procedures.

(Alternator may look slight different then your unit but will interchange)