# MRC4025341-19B Cummins 8.3L C Series Aftercooler Service Kit (B) O-ring Kit MRC4025341-19B

**O-Ring Service Kit**

Cummins 8.3L C Series Aftercooler Service Kit (A) O-ring Kit

Used on After cooler assembly 4989471 / 5566836

**Kit includes:**

4 x O-rings (only 2 needed. 2 different thicknesses provided)

1 x METALUBE / Brush

This is a Mr Cool (USA) Replacement Part MRC4025341-19B.

## Details

- **Price:** 352.0 AUD
- **Vendor:** Mr Cool
- **Tags:** Sawley’s AAM Aftermarket – Cooling Systems Mr Cool | Marine Heat Exchangers & Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 352.00 AUD | In stock |

## Images

- MRC4025341-19B Cummins 8.3L C Series Aftercooler Service Kit (B) O-ring Kit MRC4025341-19B

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/mrc4025341-19b-cummins-8-3l-c-series-aftercooler-service-kit-b-o-ring-kit-mrc4025341-19b)
> Updated: 2026-06-23