The 4LE556 turbocharger delivers reliable boost performance for Mack heavy-duty engines including E6-200, E6-250, E6-260, and E6-315 series. Compatible with ENDT672, ET673E, ETY673E, ETY675, ETZ673E, and ETZ675 powerplants, this unit features OEM-equivalent construction with part numbers 185605, 185308, 485308, and 631GC variants. Engineered for demanding commercial applications, it restores lost power and efficiency in aging or high-mileage engines. Direct replacement quality ensures proper fit and performance without modification. Ideal for fleet operators and heavy equipment professionals seeking cost-effective turbo solutions.

















