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Sierra 18-8801-1 MagForce Spark Plug Wire Set 8mm V6 Marine

Manufacturer

Sierra

<p>For nearly six decades, Sierra has established itself as one of the marine industry's most trusted names in aftermarket engine and drive parts. Founded as a specialized marine parts manufacturer, Sierra has grown into a comprehensive supplier of replacement components, instrumentation, and accessories for both recreational and commercial boating applications. Operating from their 300,000-square-foot distribution center in Litchfield, Illinois, Sierra serves boat owners and marine technicians worldwide with an extensive catalog of parts engineered specifically for the harsh saltwater environment.</p><h3>Marine Engine Excellence</h3><p>Sierra's reputation was built on delivering precision-engineered internal engine components and drive system parts that meet or exceed OEM specifications. Their <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> provide critical sealing solutions for inboard and outboard motors, while their <a href="/7570-sierra-engine-complete-assembly-15341">engine complete assemblies</a> offer comprehensive replacement options for major overhauls. Each component undergoes rigorous testing to ensure reliability in demanding marine conditions, from corrosion resistance to temperature cycling performance.</p><h3>Instrumentation and Monitoring Systems</h3><p>Accurate instrumentation is essential for boat operators to monitor engine health and prevent costly breakdowns on the water. Sierra's comprehensive line of <a href="/7570-sierra-gauges-200483">gauges</a> includes everything from fuel pressure and temperature indicators to voltmeters and trim gauges, all designed with marine-grade materials that withstand vibration, moisture, and UV exposure. Their <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauges</a> deliver precise RPM readings critical for optimizing engine performance and fuel efficiency. Supporting these instruments, Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> ensure proper signal conditioning and accurate readings across various sensor types and engine configurations.</p><h3>Expanded Product Portfolio</h3><p>In 2022, Sierra significantly broadened its scope beyond traditional marine engine parts to encompass a wider range of boating accessories and even outdoor power equipment components. This strategic expansion brought established marine brands like Shields and Moeller under the Sierra umbrella, creating a one-stop resource for marine maintenance and replacement parts. The company now offers fuel systems, electrical components, battery charging solutions, and NMEA electronics alongside their traditional engine parts lineup.</p><h3>Quality Backed by Industry-Leading Warranties</h3><p>What sets Sierra apart in the crowded aftermarket marine parts market is their commitment to standing behind every component they manufacture. Their warranty coverage extends beyond simple part replacement—it includes shop labor, haul-out fees, towing charges, and related incidental costs should a warrantied part fail. This comprehensive protection reflects the company's confidence in their manufacturing processes and quality control standards. For boat owners facing repairs far from shore or mechanics working on customer vessels, this peace of mind is invaluable. Whether you're maintaining an outboard motor, rebuilding an inboard engine, or upgrading your boat's instrumentation, Sierra's decades of marine industry experience and commitment to quality make them a reliable choice for keeping your vessel running at peak performance.</p>

Part Number

118-8801-1
06/01/2036 4:46 AM
Sale Price

$46.37

2 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-8801-1 is an 8mm spark plug wire set designed for 6-cylinder GM-based marine engines with conventional ignition systems. This premium ignition wire set replaces MerCruiser 84-816761Q7 and OMC 503750 for 3.8L and 4.3L V-6 engines, delivering reliable ignition performance for a variety of marine applications.

Key Features:

  • Kit includes coil wire for complete installation
  • Kevlar core provides maximum durability and long service life
  • Durable stainless steel wound conductor for maximum horsepower and engine performance
  • High-tear-strength silicone jacket protects to 500°F
  • Superior RFI suppression for the most sensitive electronic systems
  • Corrosion-resistant stainless steel spark plug and distributor terminals for maximum conductivity
  • Electronics friendly design protects GPS, VHF, and other electronic devices from RFI and EMI interference

These MagForce spark plug wires protect all of your electronic devices and electronic engine controls from radio-frequency interference and electromagnetic interference, while delivering the maximum amount of voltage. The premium silicone construction ensures reliable performance in harsh marine environments.

Easy to order, delivered promptly

Good service and product

Great service

Item was as described. Shipping was faster than I expected. Thank you

Great prices and fast delivery!

Good prices. Easy to navigate.

Easy to find what I needed, killer price + reasonable shipping

The only complaint I have is, your product does not list the OZ. of the products. You need to add alittle more detail.

Haven't installed yet but great shopping g and shipping g experience so far

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