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Sierra 18-5313-1 GM V8 Point Type Marine Distributor for OMC, MerCruiser & Crusader

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

18-5313-1
08/03/2036 6:53 AM
Sale Price

$411.11

1 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-5313-1 is a contact-controlled, breaker point type marine distributor engineered for GM V-8 small block and big block engines used in inboard and sterndrive marine applications. It is a direct replacement for the Mallory YL Series distributor and meets SAE J1171 certification standards for marine use. The unit ships complete with a mounting gasket.

Key Features:

  • Contact-controlled ignition for reliable spark delivery on GM V-8 engines
  • Stabilized points eliminate point float and bounce for consistent performance
  • High dielectric condenser with brass case resists corrosion in harsh marine environments
  • Mylar insulation provides greater protection against current leaks and shorting
  • Super duty cap and rotor included for long-lasting durability
  • Self-lubricating bushings reduce maintenance requirements
  • Standard rotation — compatible with most GM V-8 small and big block engines (not for 348, 409, or tall deck big block applications)
  • SAE J1171 certified for marine ignition applications

OEM Cross-Reference / Replaces:

  • Mallory: YL624AV, YL624MW, YL624MV
  • MerCruiser Stern Drive: 17177A1, 91823A3, 816148A1, 74905A3, 68521A4, 68521A3, 13447A1
  • OMC: 985560
  • Crusader: 37061
  • Johnson/Evinrude: 985560
  • Also replaces: 47-5313, AP892, 18-5313, 9-26105

Replacement / Service Parts:

  • Tune-up kit: P/N 18-5251
  • Tune-up kit with cap: P/N 18-5271
  • Replacement cap: P/N 18-5376
  • Replacement rotor: P/N 18-5404-1
  • Replacement contact set: P/N 18-5314
  • Replacement condenser: P/N 18-5338

Sierra marine parts are engineered to meet or exceed OEM specifications and are built to withstand the demanding conditions of the marine environment. Sierra supplies OEM engine manufacturers and boat builders with quality parts, making this distributor a trusted choice for marine ignition system service and restoration.

easy and quick

ggod job

Awesome

Simple

Very efficient and fast

Very easy checkout process and was fast and efficient in searching for the item I needed. Also one of the best prices everywhere, and the coupon code just sweetened the deal. Was the little push I needed to purchase this. Let's hope shipping is as satisfa

Convenience

As long as this fits my 2015 Evo X ill be happy.

The listed matching vehicles were a little vague, still a little uncertain if the part will fit, will have to find out for sure once it arrives

Finding what I wanted and price was all good...but after purchasing the item I was not given an estimate on the delivery date

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