Volvo Penta Relay 21767816 | OEM DPH DPR Sterndrive Electrical
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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 relay’s 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 they’re 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 doesn’t 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 isn’t working — is it the relay?
A: A relay that clicks but doesn’t 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
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
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