Engines and Components› Oiling Systems

Cummins/Onan

CUMMINS/ONAN ONAMAX OIL 15W40 32OZ

$28.25

SKU: C021 326-5336

In Stock
In Stock
Ships by Jun 19
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Non-Returnable Item

Description

The Cummins Onan ONAMAX 15W40 oil is a conventional engine oil specifically formulated for RV generators. It is factory recommended and tested to provide maximum protection, reduce oil consumption, and minimize engine wear. The product comes in a 32 oz. bottle and features a 15W-40 viscosity rating.

Fitment

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Specifications

BrandCummins/Onan
Part NumberC021 326-5336

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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