# 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement

Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement

Replaces Mercruiser part no. 863709, 863709A1, 863709A02

Used on Mercruiser engine:

Various GM 4.3L, 5.0L, 5.7L & 6.2L engines.

This is a non OEM part MEC 863709

## Details

- **Price:** 1738.0 AUD
- **Vendor:** Mr Cool
- **Tags:** Sawley’s AAM Aftermarket – Cooling Systems Mr Cool | Marine Heat Exchangers & Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1738.00 AUD | In stock |

## Images

- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement
- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement
- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement
- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement
- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement
- 863709A02 Mercruiser 863709A02 4.3L. 5.0L, 5.7L & 6.2L Heat Exchanger Replacement

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/863709a02-mercruiser-863709a02-4-3l-5-0l-5-7l-6-2l-heat-exchanger-replacement)
> Updated: 2026-06-23