ATG12218 Alternator 1987560C1 1983221C1 1987455C1 for Case IH 9210 9230 9240 9250 – 12V 125A

Part Numbers

Product Description

The ATG12218 Alternator is a high-quality aftermarket replacement designed for compatible Case IH agricultural and heavy-duty tractor applications. This 12V, 125A alternator features a Delco 21SI-style design, negative-ground configuration, and a three-wire hookup to support reliable charging system operation in demanding working environments.

This alternator is equipped with a 5/16-inch B+ output stud and a #10-24 R-terminal stud. It is supplied with six avalanche diodes and is designed for installations that use the specified electrical connections. The unit is supplied without a pulley or protective screen, so the original installation requirements should be checked before ordering.

The ATG12218 cross-references Case IH part numbers 1983221C1, 1987455C1, 1987560C1, and 1987560C1R. It is listed for Case IH / International Harvester tractor models including the 9210, 9230, 9240, 9250, 9260, 9270, 9280, 9310, 9330, 9350, 9370, 9380, and 9390. Always verify the original part number, mounting configuration, terminal connections, and alternator dimensions before installation.

Key Features

• 12V alternator with 125A output

• Delco 21SI-style alternator design

• Negative-ground electrical configuration

• Three-wire hookup

• 5/16-inch B+ output stud

• #10-24 R-terminal stud

• Equipped with six avalanche diodes

• Supplied without pulley and protective screen

• Cross-references multiple Case IH part numbers

Product Specifications