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Before a Quality-Built starter or alternator ever gets installed, MPA performs substantial testing before and after remanufacture to ensure the highest quality and dependability available. Every QB starter and alternator must first pass through our state-of-the-art Technology Center, where extensive Durability Testing and Root Cause Analyses help our engineers identify the primary reasons for failure. Modifications to reduce the occurrence of similar failures are then implemented before the units are retested repeatedly. The result? Quality-Built starters and alternators are among the most dependable automotive aftermarket parts you can buy, meeting—and often exceeding—OE specifications!