Spark Plug Wire Set – Fits Volvo Penta V8 5.0L/5.7L Engines (Replaces 3888328, 3859000)

Spark Plug Wire Set – Fits Volvo Penta V8 5.0L/5.7L Engines (Replaces 3888328)

This spark plug wire set is designed for 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 models).

This set directly replaces Volvo Penta part numbers 3888328 and 3859000; MerCruiser part numbers 816608Q61, 816608A61, and 816761A15; and Sierra part number 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 various lengths to service all 8 cylinders and the ignition coil.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Volvo Penta Models

MerCruiser Models

Technical Specifications

Package Contents

This package includes one complete Spark Plug Wire Set with the following components:

• 2 x Spark Plug Wires: 89 cm / 35 inches
• 2 x Spark Plug Wires: 76 cm / 29.9 inches
• 2 x Spark Plug Wires: 67 cm / 26.4 inches
• 2 x Spark Plug Wires: 53.5 cm / 21.1 inches
• 1 x Spark Plug Wire (Coil): 35 cm / 13.8 inches

Installation Guide

1. Safety First: Ensure the engine is cool and disconnect the battery's negative terminal to prevent electrical hazards.
2. Label Wires: Before removing anything, label each spark plug wire with its corresponding cylinder number. This prevents mix-ups.
3. Remove One Wire: Start with one cylinder. Firmly grasp the boot (not the wire) and twist gently to pull it from the spark plug. Then, remove the other end from the distributor cap.
4. Match and Install: Match the length of the old wire with a new one from the set. Apply a small amount of dielectric grease to the inside of both boots for a better seal.
5. Secure Connections: Push the new boot firmly onto the spark plug until you feel it click into place. Repeat for the distributor cap end.
6. Repeat for All Cylinders: Continue this process one wire at a time for all remaining cylinders to avoid confusion.
7. Final Check: Once all wires are replaced, reconnect the battery terminal. Start the engine to ensure it runs smoothly without misfires.

Troubleshooting & FAQ

How do I confirm this spark plug wire set will fit my engine?
Start by checking the compatible engine model tables provided on this page. Cross-reference your engine's model, year, and serial number. It is also crucial to compare your existing part numbers with the ones listed in our "Part Number Cross-Reference" section to ensure a match.

What is the difference between the orange and black jacket colors?
The color of the silicone jacket (orange or black) varies by manufacturer and does not affect the performance or fit of the wires. Both versions are built to the same specifications.

What are common signs that I need to replace my spark plug wires?
Common symptoms of failing spark plug wires include engine misfires, a rough idle, poor acceleration, decreased fuel efficiency, and visible damage like cracks or melting on the wire jackets or boots.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.