4N3986 Alternator G - Basic Fit Caterpillar

The 4N3986 is an alternator charging group for Caterpillar equipment. It is used on Caterpillar articulated dump trucks, cold planers, and engine-machine applications, including the equipment models listed below.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The equipment manufacturer associated with the fitment is Caterpillar; CTP is the manufacturer of this replacement alternator charging group.

The part is identified by SKU 4N3986 and is supplied as an alternator assembly for charging-system applications on the specified Caterpillar machines and engines. Fitment should be confirmed by the machine model and the part number before installation.

Fitment

The 4N3986 alternator charging group is listed for the following Caterpillar equipment and models:

• Caterpillar articulated dump truck applications
• Caterpillar cold planer applications
• Caterpillar engine-machine applications
• Caterpillar D25C
• Caterpillar D30C
• Caterpillar D350C
• Caterpillar PR-1000
• Caterpillar PR-1000C
• Caterpillar PR-450
• Caterpillar PR-450C
• Caterpillar PR-750B
• Caterpillar 3208 engine applications
• Caterpillar 3304 engine applications

The model designations above include both complete Caterpillar machine models and engine applications. The alternator is intended for the charging system of the listed equipment. No additional machine series or model applications are specified for this part.

Specifications