# 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL

Replacement Fuel Cooler for Cummins. QSM 11 marine engines.

This is not a standard cooler and has special baffling for high pressure.

4" diameter; 1/2" NPT Oil; 2.5" Water; 14.5 inches overall length.

No bracket included.

This is a non-OEM, aftermarket part MRC 3349370.

## Details

- **Price:** 1350.0 AUD
- **Vendor:** Mr Cool
- **Tags:** Sawley’s AAM Aftermarket – Cooling Systems Mr Cool | Marine Heat Exchangers & Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1350.00 AUD | In stock |

## Images

- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL
- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL
- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL
- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL
- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL
- 3349370 4989987 Cummins QSM11 Fuel Cooler 4"x 8.25" 3349370 / 4989987 Replacement MR COOL

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3349370-4989987-cummins-qsm11-fuel-cooler-4x-8-25-3349370-4989987-replacement-mr-cool)
> Updated: 2026-06-23