ID
1363722
1-2 weeks delivery time
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The Nanni Diesel 970639853 hex plug with a 3/8" G thread is a service sealing component used across the heat exchanger system, including heat exchanger details, heat exchanger exhaust manifold sections, and related exhaust elbow installations. It helps close off threaded ports to support clean, leak-resistant operation of the engine’s closed-loop cooling circuit on a wide range of Nanni engines, including 3.100HE, 3.90HE, 4.110HE, 4.195HE, 4.200TD, N4.40, N4.50, N4.60, N4.65, N4.115, 4.220HE, 4.330TDI, 4.340TDI, 4.380TDI (including Stern Drive), 5.250TDI, T4.155 (including Stern Drive), T4.165, T4.180, T4.200, T4.230, T4.270, T4.205 Standard, T6.300, and T6.420TDI engines.
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3/8" G Heat Exchanger Service Hex Plug by Nanni Diesel
The Nanni Diesel 970639853 is a hex plug with a 3/8" G thread used to seal service ports within the engine cooling system. Installed in the heat exchanger assembly (including heat exchanger detail views and heat exchanger spare-parts breakdowns), it is also referenced in related heat exchanger exhaust manifold layouts and an exhaust elbow assembly listing for select engines. This plug is a practical replacement when servicing coolant-side ports to help maintain a tight, dependable seal.
Compatibility
- 3.100HE engines
- 3.90HE engines
- 4.110HE engines
- 4.195HE engines
- 4.200TD engines
- N4.40 engines
- N4.50 engines
- N4.60 engines
- N4.65 engines
- N4.115 engines
- 4.220HE engines
- 4.330TDI engines
- 4.340TDI engines
- 4.380TDI engines
- T4.155 engines
- 4.380TDI Stern Drive engines
- T4.155 Stern Drive engines
- T4.165 engines
- T4.180 engines
- T4.200 engines
- T4.230 engines
- T4.270 engines
- T4.205 Standard engines
- 5.250TDI engines
- T6.300 engines
- T6.420TDI engines
Technical Specifications
Brand Nanni Diesel Part Number 970639853 Component Hex Plug Thread 3/8" G
Product Details
- System: Engine cooling system
- Assembly References: Heat Exchanger; Heat Exchanger Details; Heat Exchanger Spare Parts; Heat Exchanger Exhaust Manifold; Heat Exchanger PONAM/SARD p.30; Heat Exchanger PONAM/SARD p.32; Exhaust Elbow
- Typical Role: Seals a threaded service/drain/access port on the heat exchanger-related circuit
Features
- OEM-fit plug designed for Nanni Diesel heat exchanger port closures
- Hex-head format supports straightforward installation and removal during servicing
- Helps maintain cooling-system integrity by keeping service openings securely sealed
- Wide cross-compatibility across Nanni HE, TDI, TD, and T-series engine groups
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