Description
The VOLVO PENTA SDU4 22633376.P01 is a Shutdown Unit designed for engine safety monitoring and emergency shutdown functions in Volvo Penta marine and generator applications. The SDU operates as an independent safety system and monitors dedicated engine protection inputs, activating the fuel cutoff or stop circuit when a critical shutdown condition is detected. Volvo Penta documentation describes SDU systems with multiple shutdown channels, overspeed protection, shutdown reset, broken-wire detection, and shutdown alarm outputs. The 22633376.P01 unit is listed as an SDU4 Shutdown Unit, with comparable listing data showing the 22633376 part number and New Open Box condition.
Product Parameters
🔹 Brand: VOLVO PENTA
🔹 Model: SDU4
🔹 Part Number: 22633376.P01 / 22633376
🔹 Product Name: Shutdown Unit
🔹 Product Type: Engine Safety / Shutdown Controller
🔹 Application: Marine Engines and Generator Sets
🔹 System Function: Engine protection, emergency shutdown and safety monitoring
🔹 Shutdown Channels: Multiple dedicated shutdown inputs; configuration dependent
🔹 Protection Functions: Overspeed shutdown, engine protection switches, shutdown alarm and reset
🔹 Typical Inputs: Coolant temperature, oil pressure, coolant pressure, oil temperature and exhaust temperature depending on engine configuration
🔹 Overspeed Protection: Dedicated overspeed shutdown function
🔹 Broken-Wire Detection: Detects loss of connection or power-related shutdown-system faults
🔹 Control Functions: Shutdown override, shutdown reset, alarm acknowledge and overspeed test
🔹 Output Function: Shutdown fuel-valve / engine-stop relay interface
🔹 System Integration: Volvo Penta SDU, MCU, engine connection box and associated engine-control wiring
🔹 Installation: Engine electrical connection box / compatible control cabinet
🔹 Condition: New – Open Box / Verify exact unit condition
Recommended VOLVO PENTA Models
- 3818366 – SDU Shutdown Unit
- 3818237 – ID-MCU Control Unit
- 3818237.P04 – ID-MCU Control Unit
- 21654548.P01 – Volvo Penta Control Software Reference
- 21654503.P01 – Volvo Penta Control Software Reference
- SDU Control Panel – Engine Shutdown Control Panel
- Marine Control Unit (MCU) – Volvo Penta Engine Control Module
- ID-COM – Engine Communication Module
- Power Module – Volvo Penta Engine Electrical Power Module
- Engine Connection Box – Volvo Penta Engine Interface Assembly
