Volvo Penta Resistor ā 873717
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Volvo Penta Resistor 873717 is a genuine OEM ballast resistor designed to regulate voltage within the ignition system of Volvo Penta marine engines. This resistor reduces voltage to the ignition coil during normal engine operation, preventing coil overheating and extending the life of ignition components.
Built to OEM specifications, this resistor ensures stable ignition performance by maintaining proper voltage levels, especially in older carbureted and points-style ignition systems. It is a critical component for reliable engine starting and consistent spark delivery.
Key Features
- Genuine Volvo Penta OEM ballast resistor
- Regulates voltage to ignition coil
- Prevents coil overheating and premature failure
- Ensures stable ignition performance
- Marine-grade construction for durability
- Direct OEM replacement
Engine Compatibility
Commonly used on older Volvo Penta ignition systems, including:
- Volvo Penta AQ series gasoline engines
- Volvo Penta 4-cylinder and V6 carbureted engines
- Volvo Penta V8 (5.0L / 5.7L) with points or early electronic ignition
Applications include:
- Ignition coil voltage regulation
- Primary ignition circuit protection
ā Typically used on 12V ignition systems with ballast resistor requirement
ā Not used on newer full electronic ignition systems
Serial Number Fitment Notice
Ignition components vary significantly by engine model and ignition type. Always confirm compatibility using your engine serial number and ignition system configuration before ordering.
When This Part Needs Replacement
- Engine hard starting or no start condition
- Weak or inconsistent spark
- Ignition coil overheating
- Visible damage or cracking on resistor body
- Electrical testing shows incorrect resistance
Installation Notes
- Mount in original location with proper airflow for cooling
- Ensure clean, tight electrical connections
- Verify correct wiring configuration before installation
- Test voltage at coil after installation
- Replace coil if damage is suspected
Alternate / Superseded / Cross-Reference Part Numbers
- Volvo Penta: 873717
- Sierra: 18-5807
- GLM: 72160
- Common equivalent: marine ballast resistor (application-specific)
Parts Desk Insight
Ballast resistors are a common failure point on older ignition systems. If the engine starts but dies when the key is released, or has weak spark, this is often the culprit. Always verify coil compatibility ā running without a resistor on a resistor-required system will quickly burn out the coil.
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ā*not as shown
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 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 ā 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 ā 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.
For return authorization, please contact our support team before shipping anything back.