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84-816608Q61 816761Q4 For Mercruiser V8 Thunderbolt Marine Spark Plug Wire Set
$61.99
Sale price
$61.99
Regular price
Available to Order
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Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
84-816608Q61 816761Q4 For Mercruiser V8 Thunderbolt Marine Spark Plug Wire Set
Restore your boat's power and reliability with this premium spark plug wire set. Specially engineered for Mercruiser V8 engines featuring the Thunderbolt ignition system, this aftermarket kit provides superior spark delivery and long-lasting durability in demanding marine environments.
Key Features & Benefits
- High-quality insulation prevents voltage leaks and cross-firing
- Corrosion-resistant terminals designed for saltwater and freshwater use
- Precision-fit boots ensure a secure, moisture-tight connection
- Optimized for maximum conductivity and engine efficiency
Compatible Models
- Mercruiser V8 Engines with Thunderbolt Ignition
- Replaces Part Numbers 84-816608Q61 and 816761Q4
Product Specifications
- Part Type: Marine Spark Plug Wire Set
- Condition: Brand New Aftermarket
- Application: V8 Marine Engines
Frequently Asked Questions
Is this an OEM part?
No, this is a high-quality aftermarket replacement part designed to meet or exceed original performance standards.
How do I confirm compatibility?
Please check your existing part numbers and engine specifications against 84-816608Q61 and 816761Q4 to ensure a proper fit.
Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.