Volvo Penta Relay 21767816 | OEM DPH DPR Sterndrive Electrical

Volvo Penta OEM Relay DPH / DPR Sterndrive Electrical System

Part Number: 21767816 | SKU: 21767816
Brand: Volvo Penta | Official Product Type: Relay
System: Sterndrive / Transom Shield Electrical System
Estimated Weight: 0.043 kg

The genuine Volvo Penta OEM relay for selected DPH and DPR sterndrive and transom shield electrical applications. This relay switches higher-current electrical circuits using a low-current control signal a critical function for reliable operation of engine-related electrical systems and powered accessories. Confirm fitment using your drive or engine serial number before ordering.

Key Features

• Genuine Volvo Penta OEM relay factory specification
• Switches higher-current circuits via low-current control signal
• Reduces load on switches and control circuits in the marine electrical system
• Designed for the operating environment of Volvo Penta DPH and DPR sterndrive applications
• Direct OEM replacement matches original terminal configuration and mounting

Compatible Applications

• Volvo Penta DPH-A sterndrive / transom shield
• Volvo Penta DPH-B sterndrive / transom shield
• Volvo Penta DPH-D sterndrive / transom shield
• Volvo Penta DPH-D1 sterndrive / transom shield
• Volvo Penta DPR-D sterndrive / transom shield
• Volvo Penta TSK DPH-A transom shield kit
• Volvo Penta TSK DPH-B transom shield kit
• Relay usage can vary by wiring harness, transom shield arrangement, and production range always confirm using your drive or engine serial number before ordering

When to Replace

Replace this relay when any of the following are present:

• The controlled circuit no longer switches on or off correctly
• The relay clicks but power is not passing through as expected
• Intermittent electrical operation in the associated circuit
• Visible heat damage, corrosion, or moisture intrusion on the relay body or terminals
• Electrical diagnosis has confirmed a failed relay in the circuit

Installation Notes

• Confirm the correct part number against your drive or engine serial number before installation
• Match the original relays terminal configuration before installing the replacement
• Inspect the relay socket, connector, and surrounding wiring for heat damage or corrosion during service replace damaged connectors at the same time
• Keep the mounting area clean and dry to protect the relay in the marine environment
• Follow Volvo Penta service documentation for the specific circuit being repaired

Parts Desk Insights

Best Use Case: This relay is most commonly needed when diagnosing intermittent electrical faults or a circuit that has stopped switching correctly on a DPH or DPR sterndrive. Relays are a frequent first step in electrical troubleshooting because theyre relatively low cost and easy to swap but a failed relay can mimic wiring problems and cause significant diagnostic time if overlooked.

Common Questions: Customers often ask whether any relay with the same pin count and voltage rating will substitute for Volvo Penta applications, we recommend using the correct OEM part to ensure the right switching characteristics and terminal fit. Also worth noting: when replacing a relay, always inspect the socket and surrounding terminals for corrosion or heat damage. A corroded socket can cause the new relay to fail prematurely.

Technical FAQ

Q: How do I test a relay before replacing it?
A: A relay can be tested with a multimeter or by swapping it with a known-good relay of the same part number. Listen for the click when the control circuit is energized if the relay clicks but the load circuit doesnt activate, the relay contacts have likely failed.

Q: Can I use a generic relay with the same pin layout?
A: While generic relays with matching pin layouts may fit physically, the OEM relay is specified for the correct switching current, coil resistance, and contact rating for the Volvo Penta circuit. Using the correct OEM part avoids compatibility issues.

Q: My relay is clicking but the circuit isnt working is it the relay?
A: A relay that clicks but doesnt pass power has failed contacts replace the relay. Also inspect the socket and wiring for corrosion, as a corroded connection can cause the same symptom even with a good relay.

Q: How do I confirm this is the right relay for my drive?
A: Use your drive serial number to look up the electrical system diagram for your specific DPH or DPR variant. Contact us with your serial number if you need help confirming the correct part.

Related Parts

• Browse Volvo Penta Electrical Components
• Browse Volvo Penta Drive Components
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