WAI Collection

Discover premium WAI electrical components at BestParts.ca, your trusted source for 100% new, OE-grade charging and starting systems. As a global leader in automotive electrical manufacturing, WAI delivers innovation and reliability across passenger vehicles, heavy-duty trucks, agricultural equipment, and powersport applications.
Every WAI alternator undergoes rigorous testing to OEM specifications, ensuring superior performance at both idle and full-load RPM conditions. Unlike remanufactured units, WAI produces completely new assemblies featuring premium Transpo electronics and WBD-grade bearings manufactured to exacting standards. This commitment to quality has made WAI the supplier of choice for major retailers-NAPA's high-output alternators are manufactured by WAI, offering the same proven performance at competitive pricing.
When comparing alternator price options, WAI delivers exceptional value across our inventory ranging from $177 to over $1,000. These 100% new units eliminate the uncertainty of rebuilt components while providing comprehensive coverage for domestic, Asian, and European vehicles. Whether you need a standard car alternator replacement or a high-output unit for vehicles with demanding electrical loads, WAI's extensive catalog ensures the perfect fit.
WAI's comprehensive validation testing program includes endurance cycles, humidity exposure, power thermal cycling, vibration analysis, salt spray resistance, and thermal shock evaluation. Each alternator comes performance-tested with documentation showing RPM, voltage output, and load specifications-proof of quality you can trust. Starters receive equally thorough testing for torque, voltage, and solenoid performance to guarantee reliable cold-weather starting.
The result is extended field life and reduced warranty rates compared to rebuilt alternatives. With immediate availability and ready-to-ship inventory, BestParts.ca ensures you receive your WAI components quickly across Canada with free shipping on all orders.
Browse our complete WAI collection and experience the difference that truly new, precision-engineered electrical components make in your vehicle's performance and reliability.