Spark Plug Wire Set – Fits Volvo Penta, MerCruiser 5.0L/5.7L (Replaces 3888328, 3859000, 816608Q61)
Spark Plug Wire Set – Fits Volvo Penta, MerCruiser 5.0L/5.7L (Replaces 3888328, 3859000, 816608Q61) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Spark Plug Wire Set – Fits Volvo Penta, MerCruiser 5.0L/5.7L (Repla...
Product Details
This Spark Plug Wire Set – Fits Volvo Penta V8 5.0L/5.7L Engines is designed for reliable performance in Volvo Penta 5.0L & 5.7L V8 4-stroke engines from various GXi, Gi, and OSi series (2001–2012). It is also compatible with MerCruiser 5.0L & 5.7L V8 4-stroke engines equipped with electronic ignition (2002 and newer).
This kit serves as a direct replacement for Volvo Penta part numbers 3888328 and 3859000; MerCruiser 816608Q61, 816608A61, and 816761A15; and Sierra 18-8804.
- Engineered for direct-fit installation, connecting the distributor cap to the spark plug boots.
- Constructed with a durable silicone outer jacket and a high-performance stainless steel conductor.
- Includes a complete set of 9 wires in varied lengths to service all 8 cylinders and the coil.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3888328 |
| Volvo Penta | 3859000 |
| MerCruiser | 816608Q61 |
| MerCruiser | 816608A61 |
| MerCruiser | 816761A15 |
| Sierra | 18-8804 |
Engine & Model Compatibility
Confirm your engine model and year in the tables below for an exact match.
For Volvo Penta Engines: Fits V8 5.0L and 5.7L GXi, Gi, and OSi series models from 2001 to 2012 with electronic ignition.
For MerCruiser Engines: Fits V8 5.0L and 5.7L GENE+ MPI models from 2002 onward with a flat top distributor.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Volvo Penta | 5.0GXi-B, 5.0GXi-BF, 5.0OSi-B, 5.0OSi-BF | 5.0L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.0GXi-C through 5.0GXi-DF, 5.0OSi-C through 5.0OSi-DF | 5.0L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.0GXi-E through 5.0GXi-FF, 5.0OSi-E through 5.0OSi-FF | 5.0L | 4-Stroke | 2004–2005 | 3888328, 3859000 |
| Volvo Penta | 5.0GXi-G through 5.0GXi-GF, 5.0OSi-G through 5.0OSI-GF | 5.0L | 4-Stroke | 2006–2007 | 3888328, 3859000 |
| Volvo Penta | 5.0GXi-J through 5.0GXi-N, 5.0OSi-J through 5.0OSi-JF | 5.0L | 4-Stroke | 2008–2011 | 3888328, 3859000 |
| Volvo Penta | 5.0GXiE-J through 5.0GXiE-N, 5.0OSiE-J through 5.0OSiE-JF | 5.0L | 4-Stroke | 2008–2012 | 3888328, 3859000 |
| Volvo Penta | 5.0GiC-J through 5.0GiC-JF, 5.0GXiC-J through 5.0GXiC-JF | 5.0L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.0GiCE-J through 5.0GiCE-JF, 5.0GXiCE-J through 5.0GXiCE-JF | 5.0L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.0GiCE-M through 5.0GiCE-MF, 5.0GXiCE-M through 5.0GXiCE-MF | 5.0L | 4-Stroke | 2010–2012 | 3888328, 3859000 |
| Volvo Penta | 5.0GL, 5.0GXi, 5.0OSi | 5.0L | 4-Stroke | 2001–2012 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-B through 5.7Gi-BF, 5.7GiI-B | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7OSi-A through 5.7OSi-AF | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7GXi-C through 5.7GXi-CF, 5.7GXiI-C | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-C through 5.7Gi-DF, 5.7GiI-C through 5.7GiI-D | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7GXi-D through 5.7GXi-DF, 5.7GXiI-D through 5.7GXiI-E | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7GXi-E through 5.7GXi-EF, 5.7Gi-E through 5.7Gi-EF | 5.7L | 4-Stroke | 2004–2005 | 3888328, 3859000 |
| Volvo Penta | 5.7GiI-E, 5.7GXi-F through 5.7GXi-FF, 5.7GXiI-F | 5.7L | 4-Stroke | 2004–2005 | 3888328, 3859000 |
| Volvo Penta | 5.7OSi-D through 5.7OSi-DF, 5.7OSXi-D through 5.7OSXi-DF | 5.7L | 4-Stroke | 2001–2004 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-F through 5.7Gi-FF, 5.7GiI-F, 5.7GXi-G through 5.7GXi-GF | 5.7L | 4-Stroke | 2005–2007 | 3888328, 3859000 |
| Volvo Penta | 5.7GXiI-G, 5.7OSi-E through 5.7OSi-EF, 5.7OSXi-E through 5.7OSXi-EF | 5.7L | 4-Stroke | 2005–2007 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-G through 5.7Gi-GF, 5.7GiI-G, 5.7GXi-H through 5.7GXi-HF | 5.7L | 4-Stroke | 2006–2008 | 3888328, 3859000 |
| Volvo Penta | 5.7GXiI-H, 5.7OSi-G through 5.7OSi-GF, 5.7OSXi-G through 5.7OSXi-GF | 5.7L | 4-Stroke | 2006–2008 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-300-J through 5.7Gi-300-JF, 5.7OSi-300-J through 5.7OSi-300-JF | 5.7L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.7GXi-J through 5.7GXi-JF, 5.7OSXi-J through 5.7OSXi-JF | 5.7L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.7Gi-300-N, 5.7GXi-N | 5.7L | 4-Stroke | 2010–2012 | 3888328, 3859000 |
| Volvo Penta | 5.7GiE-300-J through 5.7GiE-300-JF, 5.7GXiE-J through 5.7GXiE-JF | 5.7L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.7OSiE-300-J through 5.7OSiE-300-JF, 5.7OSXiE-J through 5.7OSXiE-JF | 5.7L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.7GiE-300-K | 5.7L | 4-Stroke | 2010–2012 | 3888328, 3859000 |
| Volvo Penta | 5.7GiC-300-J through 5.7GiC-300-JF, 5.7GXiC-J through 5.7GXiC-JF | 5.7L | 4-Stroke | 2008–2010 | 3888328, 3859000 |
| Volvo Penta | 5.7GL, 5.7Gi, 5.7OSi, 5.7GXi, 5.7OSXi | 5.7L | 4-Stroke | 2001–2012 | 3888328, 3859000 |
| Volvo Penta | 8.1Gi, 8.1GXi, 8.1OSi | 8.1L | 4-Stroke | 2001–2012 | 3888328, 3859000 |
| MerCruiser | 5.0L GENE+ MPI | 5.0L | 4-Stroke | 2002+ | 816608Q61, 816608A61, 816761A15 |
| MerCruiser | 5.7L GENE+ MPI | 5.7L | 4-Stroke | 2002+ | 816608Q61, 816608A61, 816761A15 |
Technical Specs
- Product Type
- Spark Plug Wire Set
- Installation
- Direct fit
- Fuel Type
- Gasoline (petrol)
- Connection
- Distributor cap to spark plug boots
- Housing Material
- Silicone outer jacket with stainless steel conductor
- Housing Color
- Black (boots); Orange or Black silicone jacket (varies by manufacturer)
- Dimensions
- Set of 9 wires in varying lengths (35-89 cm / 13.8-35 in)
- Weight
- 0.77 kg (1.7 lb)
- Fitting Type
- OEM Direct Replacement
- Operating Temperature
- -40°C to 180°C (-40°F to 356°F)
- Warranty
- 1 Year (limited warranty against manufacturing defects)
- Other Technical Attributes
- 8-cylinder, Electronic Ignition, 8mm wire diameter
What’s in the Box
- 1 x Full Spark Plug Wire Set, including:
- 2 x Spark Plug Wires (89 cm / 35 in)
- 2 x Spark Plug Wires (76 cm / 29.9 in)
- 2 x Spark Plug Wires (67 cm / 26.4 in)
- 2 x Spark Plug Wires (53.5 cm / 21.1 in)
- 1 x Spark Plug Wire (35 cm / 13.8 in)
Installation Notes
- Disconnect the battery before beginning work to prevent electrical shock.
- Replace one spark plug wire at a time to avoid mixing up cylinder firing order. Note the routing of the old wire before removing it.
- Firmly grasp the boot (not the wire) and twist slightly to remove the old wire from the spark plug and distributor cap.
- Apply a small amount of dielectric grease to the inside of the new boots for easier installation and improved sealing.
- Route the new wire along the same path as the original. Push the boots onto the spark plug and distributor cap until you feel or hear a distinct click.
- Once all wires are replaced, reconnect the battery and start the engine to confirm smooth operation.
Troubleshooting & FAQ
How can I confirm these wires will fit my engine?
The best way is to check your engine model and year against the compatibility table provided. Also, cross-reference your existing part number with the numbers listed in our Part Number Matrix.
What are the signs of failing spark plug wires?
Common symptoms include rough idling, engine misfires (especially under load), decreased power, poor fuel economy, and visible damage to the wires such as cracks, burns, or corrosion.
Why are some wires orange and others black?
The color of the silicone jacket is a cosmetic choice by the manufacturer and does not affect the performance or fit of the wires. Both colors meet the same technical specifications.
How often should spark plug wires be replaced?
While there is no fixed interval, it's good practice to inspect them during regular maintenance and consider replacement every 5-7 years or if you notice any signs of wear, damage, or performance degradation.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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