ID
942102
$ 5.86
1-2 weeks delivery time
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The Nanni Diesel 39020403 stud bolt is a threaded fastening element used across key engine and driveline interfaces, providing secure clamping and stable alignment in the gearbox flange, flywheel housing, and intercooler assemblies. This OEM-fit stud bolt is specified for 4.390TDI Stern Drive engines and multiple T4 series applications including T4.155, T4.165, T4.180, T4.200, and T4.212 engines, as well as 4.380TDI variants, with applicability up to serial number T103060522 where noted.
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Nanni Diesel Stud Bolt for Gearbox and Engine Assemblies
The Nanni Diesel 39020403 is a stud bolt designed to secure critical mating surfaces where consistent clamp load and component positioning matter most. Used within the gearbox flange, flywheel housing, and intercooler assemblies (depending on engine configuration), this fastener supports reliable installation and helps maintain joint integrity under vibration and thermal cycling commonly seen in marine propulsion systems.
Compatibility
- 4.390TDI Stern Drive engines
- T4.155 engines
- 4.380TDI engines
- T4.155 Stern Drive engines
- 4.380TDI Stern Drive engines
- T4.165 engines
- T4.180 engines
- T4.200 engines
- T4.200 Rive engines
- T4.212 engines
Technical Specifications
Part Number 39020403 Applicability Note Up to serial number T103060522 (where noted)
Product Details
- Brand: Nanni Diesel
- Component Type: Stud Bolt
- Assembly Locations: Gearbox Flange; Flywheel Housing; Intercooler
Features
- Designed for OEM-fit fastening in drivetrain and engine-mounted assemblies
- Supports stable alignment and secure clamping at gearbox flange and flywheel housing interfaces
- Suitable for intercooler assembly mounting where specified by the engine configuration
- Well-suited for marine duty cycles where vibration resistance and joint reliability are essential
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