Expansion Valve

AAASTAND® alternator pulleys are manufactured from precision-machined steel or aluminum alloy per SAE J636 standards, featuring balanced construction and hardened groove surfaces to ensure smooth belt tracking and extended service life. Equipped with integrated hub assemblies and corrosion-resistant coatings to withstand high-speed operation and environmental exposure. OEM and private-label manufacturing available upon request.

AAASTAND® alternator pulleys transfer crankshaft power to alternators via optimized grooves for maximum belt contact. Precision-balanced design reduces vibration and slip, ensuring consistent charging drive ratios. Press-fit or threaded hubs provide secure mounting.