9-Inch Spark Plug Wire for Mercury Marine 150–175–200 HP 2-Stroke Outboards – Replaces 84-813715A1
9-Inch Spark Plug Wire for Mercury Marine 150–175–200 HP 2-Stroke Outboards – Replaces 84-813715A1 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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9-Inch Spark Plug Wire for Mercury Marine 150–175–200 HP 2-Stroke O...
9-Inch Spark Plug Wire for Mercury Marine 150–175–200 HP 2-Stroke Outboards – Replaces 84-813715A1 is backordered and will ship as soon as it is back in stock.
Product Details
This 9-inch marine spark plug wire is an aftermarket replacement for selected Mercury Marine 150 HP, 175 HP, and 200 HP 2-stroke outboard applications. It provides the high-voltage connection between the ignition system and spark plug for dependable ignition performance.
The wire is designed as a direct replacement for Mercury Marine OEM reference 84-813715A1. RECMAR reference REC15-203 and Sierra reference 18-5228-1 are additional catalog references associated with this replacement style. Always compare the engine model, serial-number range, terminal configuration, and existing wire before ordering.
- 9-inch spark plug wire for selected Mercury Marine and Mariner outboard applications.
- Designed for direct plug-in replacement when the original wire has the same configuration.
- 8 mm silicone jacket with corrosion-resistant terminals for marine service.
- Wire-wound construction helps provide reliable ignition performance with reduced radio-frequency interference.
Part Number References
Use the following references together with your engine model and serial number to confirm compatibility. These references identify catalog or replacement relationships and do not replace application verification.
| Brand or Source | Reference | Reference Type |
|---|---|---|
| Mercury Marine | 84-813715A1 | OEM reference |
| RECMAR | REC15-203 | Aftermarket catalog reference |
| Sierra | 18-5228-1 | Aftermarket catalog reference for a 9-inch, 8 mm wire |
Engine & Model Compatibility
This replacement is intended for selected Mercury Marine and Mariner 2-stroke outboards rated at 150 HP, 175 HP, and 200 HP. Model and serial-number coverage can vary, so confirm the complete engine identification before purchase.
| Brand | Model Family | Rated HP | Stroke | Application Note |
|---|---|---|---|---|
| Mercury / Mariner | V-150 and selected 150 HP models | 150 | 2-Stroke | Verify model designation, serial number, and original wire configuration. |
| Mercury / Mariner | V-175 and selected 175 HP models | 175 | 2-Stroke | Verify model designation, serial number, and original wire configuration. |
| Mercury / Mariner | V-200 and selected 200 HP models | 200 | 2-Stroke | Verify model designation, serial number, and original wire configuration. |
Technical Specifications
- Product Type
- Spark plug wire
- Application
- Selected Mercury Marine and Mariner 2-stroke outboards
- Rated Engine Range
- 150 HP, 175 HP, and 200 HP applications
- Nominal Length
- 9 inches
- Jacket
- 8 mm silicone
- Connection
- Ignition system to spark plug
- Conductor
- Wire-wound ignition-wire construction
- Installation
- Direct plug-in replacement when configuration matches the original
- Product Status
- Aftermarket replacement; not a genuine Mercury Marine OEM part
What's in the Box
- 1 x 9-inch spark plug wire
Installation Notes
- Turn the engine off, allow it to cool, place it in neutral, and disconnect the battery according to the manufacturer's safety procedure.
- Remove the existing wire by twisting the boots gently at the ignition-system and spark-plug ends. Do not pull on the wire itself.
- Compare the replacement wire's length, boots, terminals, and routing with the original wire before installation.
- Apply a small amount of dielectric grease inside the boots if appropriate for your engine-service procedure.
- Press the replacement boots fully onto the ignition connection and spark plug. Route the wire away from hot or moving components.
- Reconnect the battery, start the engine, and check for smooth operation and secure connections.
Troubleshooting & FAQ
How can I confirm that this wire fits my engine?
Match your engine's brand, model designation, horsepower, stroke, and serial number with the applicable parts information. Also compare the original wire's length, terminal ends, boot shape, and routing with the replacement. If any of these details differ, do not install the wire without confirming compatibility.
Is this wire 9 inches long?
Yes. The catalog application identifies this replacement style as a nominal 9-inch spark plug wire. Measure your original wire and compare the complete installed routing before ordering.
What are common symptoms of a worn spark plug wire?
Possible symptoms include misfiring, rough idle, difficult starting, reduced acceleration, and visible cracking, burning, moisture damage, or corrosion at the terminals.
Is this a genuine Mercury Marine part?
No. This is an aftermarket replacement wire intended for applications associated with Mercury Marine OEM reference 84-813715A1. Mercury Marine is a trademark of its respective owner and is used only to identify compatibility.
How fast is shipping and what does it cost?
Shipping availability, delivery estimates, and cost depend on the destination and service selected at checkout. Available options are shown during checkout.
What is the warranty and return policy?
Warranty and return coverage are governed by the applicable store policy. Contact customer support with your order details if the item arrives damaged or you experience a product issue.
Safety & Important Information
- Confirm the complete engine model and serial-number application before purchase.
- Compare the replacement wire with the original part, including length, boots, terminals, and routing.
- Disconnect the battery and follow the engine manufacturer's service precautions before installation.
- This is an aftermarket replacement component, not a genuine OEM part.
- Professional installation is recommended if you are unfamiliar with marine ignition systems.
About Sea Sierra
- Marine Replacement Parts — We supply aftermarket components for repair and maintenance applications.
- Application-Focused Information — Product details are presented to help customers compare part references and engine applications.
- Customer Support — Contact our team if you need help comparing the replacement with your original part.
Payment & Security
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