---
product_id: 10622781
title: "Onan OnaMax SAE 15W-40 Engine Oil, 32 oz."
brand: "cummins"
price: "€ 55.16"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/10622781-onan-onamax-sae-15w-40-engine-oil-32-oz
store_origin: FR
region: France
---

# High-temp oxidation resistance Viscosity grade 15W-40 32 oz. precision bottle Onan OnaMax SAE 15W-40 Engine Oil, 32 oz.

**Brand:** cummins
**Price:** € 55.16
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your generator running cooler, longer — because downtime is so last season.

## Quick Answers

- **What is this?** Onan OnaMax SAE 15W-40 Engine Oil, 32 oz. by cummins
- **How much does it cost?** € 55.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/10622781-onan-onamax-sae-15w-40-engine-oil-32-oz)

## Best For

- cummins enthusiasts

## Why This Product

- Trusted cummins brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat? No Sweat!:** Specially formulated to combat high-temperature oil oxidation and reduce engine wear.
- • **Ready When You Are:** Compact 32 oz. bottle perfect for quick top-ups and maintenance on the go.
- • **Engine Armor at Every Drop:** Factory-tested to deliver maximum protection for your generator’s heart.
- • **Consistent Performance, Always:** Maintains optimal viscosity to ensure smooth operation under stress.
- • **Universal Fit, Ultimate Convenience:** Designed to fit all Onan generators straight from the factory—no guesswork needed.

## Overview

Onan OnaMax SAE 15W-40 Engine Oil is a conventional, non-synthetic oil engineered by Cummins to reduce engine wear and oil consumption caused by high-temperature oxidation. Factory-approved for all Onan generators, this 32 oz. bottle ensures reliable viscosity and protection, extending engine life and maintaining peak performance.

## Description

Onan OnaMax SAE 15W-40 Engine Oil, 32 oz.

## Features

- Conventional non-synthetic oil
- Specially formulated to reduce consumption and engine wear due to high temp oil oxidation
- 32-oz. bottle

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Viscosity | 15W 40 |
| Brand | Cummins |
| Vehicle Service Type | Generator |
| UPC | 690781000704 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00690781000704 |
| Manufacturer | Cummins |
| SAE J300 Viscosity Grade | 15W-40 |
| Item Weight | 1.92 pounds |
| Product Dimensions | 9 x 4.25 x 2.75 inches |
| Item model number | 3265336 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 326-5336 |

## Product Details

- **Viscosity:** 15W 40
- **Brand:** Cummins
- **Vehicle Service Type:** Generator
- **UPC:** 690781000704
- **Automotive Fit Type:** Universal Fit

## Images

![Onan OnaMax SAE 15W-40 Engine Oil, 32 oz. - Image 1](https://m.media-amazon.com/images/I/61ica2HVebL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: Is this for gasoline engines?**
A: This is for Onan gas generators

**Q: Can i use this in a wood chipper with a 4 cycle engine?**
A: If your wood chipper requires 15w 40 weight oil this would most likely meet the motors requirements.

**Q: Why is the price 2x srp?**
A: Yes

**Q: It will work for 2022 Ram 2500 diesel?**
A: Yes.  It makes any diesel fuel become premium diesel.  The 2022 Cummins may not NEED it as much as an older high mileage diesel,  but will still get benefit from it

## Frequently Bought Together

- CUMMINS NW Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart
- CUMMINS NW Cummins Onan 122-0836 Oil Filter (Packaging May Vary)
- CUMMINS NW Cummins 1403116 Onan Air Filter

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---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-24*