ID
1363302
$ 1,382.07
1-2 weeks delivery time
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The Nanni Diesel 970313731 heat exchanger tube stack is the core element inside the heat exchanger assembly, built to promote efficient heat transfer between the engine’s coolant circuit and the raw-water side. Supplied as an OEM replacement for N3.21 and N3.21 Standard engines, it helps maintain stable operating temperatures and supports dependable cooling system performance onboard.
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Heat Exchanger Core Tube Stack for N3.21 Marine Engines
The Nanni Diesel 970313731 is a heat exchanger tube stack used as the internal core of the heat exchanger assembly. Installed within the exchanger body, this tube bundle carries one fluid circuit while allowing heat to pass efficiently to the other, helping the engine maintain correct operating temperature under continuous marine load.
Compatibility
- N3.21 engines
- N3.21 Standard engines
Product Details
- Brand: Nanni Diesel
- Part Number: 970313731
- Component Type: Heat Exchanger Tube Stack
- Assembly Location: Heat Exchanger
- Catalog Assembly Reference: Temperature Heat Exchanger Details
Features
- Designed as the primary heat-transfer element within the heat exchanger
- Supports consistent coolant temperature control for marine operation
- OEM replacement fit for Nanni Diesel cooling system assemblies
- Helps restore cooling efficiency when the original core is scaled, fouled, or damaged
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