NEW ALTERNATOR IS COMPATIBLE WITH THE UNITS LISTED BELOW:NK IR/EF 2V PLY THIS UNITS IS COMPATIBLE WITH AND A REPLACEMENT FOR THE FOLLOWING ISUZU 1-81200-440-0 1812004401 1812004402 NIKKO 0-33000-6550 0-33000-6551 0-33000-6552 01-33-3000 NIKKO DENKI 01-33-3000 THIS UNIT IS COMPATIBLE WITH AND A REPLACEMENT FOR THE FOLLOWING :ISUZU (1991-2007) BUYMCR - DRIVIN' THE MOTOR CITY SINCE 1968 100% BRAND NEW REPLACEMENT ENGINEERED & TESTED TO EXCEED OEM SPECIFICATIONS PLEASE CHECK YOUR NUMBERS TO ENSURE CORRECT REPLACEMENT ASIN B07G8X7G9T Brand World Power Systems Voltage 24 Volts Amperage 30 Amps Item Weight 15 pounds Manufacturer World Power Systems OEM Part Number 0-6552 01-33-3000, 2 NIKKO 0-33000-6550 0-33000-6551 0-3300, ISUZU 1-81200-440-0 1812004401 181200440 Manufacturer Part Number MCR12360N