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Sierra 18-8839-1 Premium MagForce Marine Spark Plug Wire Set

Manufacturer

Picture for manufacturer Sierra

Part Number

18-8839-1
21 reviews
Sale Price

$46.83

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-8839-1 MagForce Premium Marine Spark Plug Wire Set is a high-performance ignition wire set engineered specifically for marine outboard applications. Designed as a direct OEM replacement, this set includes 4 total wires — two 14" and two 16" — and replaces OEM part number 5005805 as well as Mallory 9-28092.

Key Features:

  • Magnetic Suppression Core — Application-specific design for optimized ignition performance
  • Kevlar® reinforced core — Provides maximum durability and long service life in harsh marine environments
  • Stainless steel wound conductor — Delivers maximum horsepower and consistent engine performance
  • Premium silicone jacketing and boots — Offers superior high-temperature protection against engine heat
  • Superior RFI suppression — Minimizes radio frequency interference for compatibility with sensitive onboard electronics
  • Corrosion-resistant stainless steel terminals — Spark plug and distributor terminals maintain maximum conductivity in saltwater and freshwater environments
  • OE-style sealed boots — Form a protective barrier against heat, dirt, and moisture intrusion
  • Thunderbolt-type ignition compatible — Engineered for use with Thunderbolt-style ignition systems

The Sierra 18-8839-1 wire set is built to Sierra's rigorous marine standards, ensuring reliable spark delivery, reduced electromagnetic interference, and long-lasting performance in demanding on-water conditions.

Set Includes: 4 wires — (2) 14" and (2) 16"

OEM Cross Reference: Replaces OEM 5005805 | Mallory 9-28092

Products specifications

Type

Spark Plug Wires

excellent prices

It was a good experience buying truck parts for my truck & I will definitely buy from them again & they got good deals on parts also

Came quick no issue

Thank you

They had exactly what I was looking for, at a better price than the competitors. The vehicle selector pointed me in the right direction with ease.

Prompt

Got the product quickly

nothing

Fast check out..

I've only just placed my order but the item cost less with you than anywhere else and the ordering process couldn't have been easier. Thanks!

I found it fairly quickly and without much hassle, however i was unsure if it was the part i needed because of lack of details.

Lowest price and S&H around! Prompt responses! Will def buy from again!

Great prices!!

Everything was easy, from finding to ordering my parts.

So far i am happy with your service.

price was good and the sight was easy to use if the product is as good as everything else I'll be back.

will follow up when I receive shipment

Finding the parts was easy

Everything was honored as promised with great prices and shipping. Part in route can't wait to install.<br><br>Thanks,<br><br>KC_Metal<br>

Great price

Best Deal I could Finad Anywhere, easy and painless took me right to Paypal transaction a Snap. Great Customer Service

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