20459060 Relay | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta relay used in the starter-motor control circuit. It is supplied as an individual service component under part number 20459060 and is intended to restore the original fit, alignment, sealing, support or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in an parts list for your engine are serviced separately unless explicitly stated.

🚤 Compatibility

Typically suits:

• Volvo Penta TD720GE
• Volvo Penta TD520GE
• Volvo Penta TAD620VE
• Volvo Penta TAD720GE
• Volvo Penta TAD720VE
• Volvo Penta TAD721GE
• Volvo Penta TAD721VE
• Volvo Penta TAD722GE
• Volvo Penta TAD722VE
• Volvo Penta TAD420VE
• Volvo Penta TAD520GE
• Volvo Penta TAD520VE

• Engine Family: TD, TAD

⚙️ Key Features

• Designed for the starter-motor control circuit
• Designed to maintain the intended electrical signal or current path
• Engine type: Volvo Penta D5 inline-four industrial diesel

🔌 Function

Uses a low-current control signal to switch the higher current required by the starter or associated electrical load.

⚠️ Common Signs of Failure

• The starter or connected electrical load does not operate when commanded
• Operation is intermittent or affected by vibration
• The relay clicks or chatters without switching the output
• Terminals are burnt, loose or heat-damaged
• Control voltage is present but the high-current output remains absent

🛠️ Service Notes

• Isolate the batteries before removing or fitting a relay, and note the connections as they come off
• Fit like for like — coil voltage, contact rating, pin layout and any diode or resistor built across the coil must match the original, since a relay that plugs in is not necessarily the correct one
• Check the base, socket and terminals for corrosion, spread or burnt contacts and confirm the supply and earth paths before condemning a relay; damp connections and poor earths cause more of these faults than the contacts themselves
• Mount the relay in its original clip or holder so it stays secure and as dry as possible — vibration and moisture are the usual killers in a marine installation
• On petrol installations, only ignition-protected electrical devices should be fitted in the engine space or fuel tank compartment, so use parts approved for that use

📦 Condition

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