21536341 Control Unit | Genuine Volvo Penta Part

🔧 Product Description

A dedicated Volvo Penta EVC-C interface module that converts external 4-20 mA control signals into propulsion commands. It allows compatible third-party vessel-control systems to command throttle, gear selection and slip functions through the EVC network.

⚙️ Key Features

• Genuine Volvo Penta EVC-C interface module
• Accepts industry-standard 4-20 mA analogue inputs
• Supports throttle, ahead/astern gear and slip commands
• Designed for integration with commercial vessel automation
• Requires correct EVC installation, configuration and calibration
• Engine type: Electronically controlled Volvo Penta marine diesel

🔌 Function

Interprets external 4-20 mA input signals and communicates the corresponding propulsion commands to the EVC-C system.

⚠️ Common Signs of Failure

• Throttle or gear command unavailable
• Incorrect response to an external control signal
• 4-20 mA input outside the expected range
• EVC network communication fault
• Control unit will not calibrate or initialise

🛠️ Service Notes

• A replacement control unit normally has to be loaded with the software and parameter set for your engine and installation before it will run — that is authorised-dealer work with Volvo Penta's own diagnostic tool, so plan the job around it rather than around the fitting time
• Isolate the batteries at the main switches and leave the system dead before disconnecting or connecting anything; back-feeding a live bus through a half-mated connector is a common way to destroy a new unit
• Treat the unit as static-sensitive and mechanically delicate: handle it by its housing, leave it in its packaging until it is going on, and never weld on the boat with control units connected
• Mate connectors clean and dry and push them fully home until the lock engages, then refit the harness clips and any shielding so the loom is not left hanging on the plugs
• Mount it in its own bracket and original orientation so the cable entries face as designed and water runs away from the connectors rather than into them

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21536341 → Supersedes 3886232

OEM / Related Numbers

• 3886232 earlier number superseded by this part
• 3886231 - related 4-20 mA interface kit
• 21509941 - related interface set

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging