Spring-Pinion 5N8389

Spring-pinion for air starter motors used on Caterpillar industrial engines, ship equipment, and engine-generator sets. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The part is used with the following Caterpillar equipment models and engine series:

• Industrial engines: 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, D379, D379B, D398, D398B, D399, G3512, G379, G379A, G398, G399.
• Ship equipment: 3508, 3508B, 3512, 3516, 3612, 3616, 3618, C280-12, C280-16, C280-6, C280-8, D379A, D379B, D398A, D398B, D399.
• Engine-generator sets: 3606, 3608, 3612, 3616, D399.

Cross-reference numbers

• 5N-8389
• 5N8389

Specifications