5N4378 Pad Assembly for Caterpillar Equipment

The 5N4378 is a pad assembly used on Caterpillar industrial engines, ship equipment, and engine-generator sets. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified in Caterpillar equipment applications by the number 5N-4378. The same number may also be written without the hyphen as 5N4378. Fitment is determined by the equipment model and application category listed below.

Fitment

The pad assembly is listed for the following Caterpillar equipment models and application groups:

• Industrial engines: D379, D379B, D398, D398B, D399, G379, G379A, G398, G399.
• Ship equipment: D379A, D379B, D398A, D398B, D399.
• Engine-generator sets: D379B, D398B, D399.

For industrial engine applications, the listed model range includes D379 and D379B, D398 and D398B, D399, and the G-series models G379, G379A, G398, and G399. The ship equipment applications include the D379A, D379B, D398A, D398B, and D399 models. For engine-generator sets, the listed models are D379B, D398B, and D399.

The application category should be checked together with the exact machine or engine model before installation, because the same Caterpillar engine family is listed under more than one equipment group. The data supplied for this part identifies the component as a pad assembly and does not specify a separate installation position or the other components included with it.

Cross-reference numbers

• 5N-4378 — Caterpillar equipment part number format.
• 5N4378 — part number written without the hyphen.

Both number formats refer to the same listed part identification. No additional supplier cross-reference numbers are specified in the available product data.

Specifications