ID
1362557
$ 11.90
1-2 weeks delivery time
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The Nanni Diesel 970307629 water return pipe is a cooling-system return line used within the fresh water pump circuit and, on certain applications, routed at the cylinder head or cylinder head cover to guide coolant back through the engine. It supports clean, controlled coolant return flow on 2.45HE, 2.50HE, 3.100HE, 3.75HE, 4.150HE, 4.200TD, N2.14, N3.21, N3.21 Standard, N3.30, N4.38, N4.60, and N4.65 engines, including versions specified for engines before serial No. KTE08070398.
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Nanni Diesel Cooling Water Return Pipe 970307629
The Nanni Diesel 970307629 is a water return pipe used to route coolant back through the engine cooling circuit. Depending on the engine model, it is fitted as part of the fresh water pump assembly or installed at the cylinder head / cylinder head cover, helping maintain stable coolant circulation and reliable engine temperature control. For selected N-series models, this part is also identified for applications before serial No. KTE08070398.
Compatibility
- 2.45HE engines
- 2.50HE engines
- 3.100HE engines
- 3.75HE engines
- 4.150HE engines
- 4.200TD engines
- N2.14 engines
- N3.21 engines
- N3.21 Standard engines
- N3.30 engines
- N4.38 engines
- N4.60 engines
- N4.65 engines
Product Details
- Brand: Nanni Diesel
- Part Number: 970307629
- Component Type: Water Return Pipe
- Assembly Location: Fresh Water Pump; Cylinder Head; Cylinder Head Cover
- Application Note: Before Serial No. KTE08070398 (as specified for N3.21, N3.30, and N4.38 engines)
Features
- Provides a dedicated coolant return path to support consistent engine cooling
- Designed for OEM-style fit within Nanni fresh water pump and cylinder head routing layouts
- Helps reduce the risk of cooling flow restrictions caused by damaged or leaking return plumbing
- Suitable for service replacement across multiple HE and N-series marine diesel engine variants
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