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Sierra 18-9802 Self-Powered Inductive Timing Light

Manufacturer

Sierra

<h3>Sierra: Six Decades of Marine Aftermarket Excellence</h3><p><strong>Sierra</strong> has spent nearly 60 years earning its reputation as one of the most trusted names in the marine aftermarket industry. Originally focused on engine and drive components for boats, the brand has grown into a comprehensive source for nearly everything a boater needs to keep their vessel running at its best — from precision instrumentation to complete engine rebuild hardware.</p><p>Now operating as a brand of Dometic, Sierra manages global aftermarket distribution from a 300,000 sq. ft. facility in Litchfield, Illinois. The Sierra brand today encompasses not only its flagship marine parts line but also well-established marine names like Shields and Moeller, offering boaters a broader catalog than ever before. Whether you own an outboard, inboard, or sterndrive, Sierra's engineering team designs products to meet or exceed OEM specifications.</p><h3>Precision Instrumentation You Can Trust on the Water</h3><p>One of Sierra's most recognized product areas is its marine instrumentation lineup. The brand's <a href="/7570-sierra-gauge-set-1480">gauge sets</a> cover everything from classic analog instrument clusters to advanced digital multi-function displays. Sierra offers packages suited to outboards, sterndrives, and gasoline-powered inboards, with options ranging from coordinated analog kits in styles like Arctic, Eclipse, and Amega to modern touchscreen solutions like the R3 multi-function gauge. Features such as scratch-resistant domed glass lenses, silicone-dampened pointers, and perimeter backlighting make these instruments highly readable in all conditions.</p><p>Behind every accurate gauge reading is a properly calibrated sending circuit. Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> are a critical part of that chain, ensuring the signals from sensors and sending units are correctly interpreted by your instruments. These components are built to marine-grade standards to resist moisture, vibration, and corrosion — the realities of life on the water.</p><h3>Engine Internals Built to OEM Standards</h3><p>Sierra's history in marine power is perhaps best demonstrated by its deep catalog of engine components. The brand's <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> cover a wide range of outboard and inboard applications and are engineered to deliver reliable seals in the demanding thermal and chemical environment of a marine engine. For boaters performing seasonal overhauls, top-end rebuilds, or full engine restorations, Sierra gasket kits are a go-to resource trusted by professional marine technicians and DIY boaters alike.</p><h3>A Complete Marine Parts Partner</h3><p>Beyond instrumentation and engine internals, Sierra's catalog spans fuel systems, electrical supplies, steering components, shore power, and more — all covered by what the brand calls an industry-leading warranty. Sierra also maintains a comprehensive parts-finder tool that enables cross-referencing with OEM part numbers from major manufacturers including Mercury, Yamaha, Suzuki, Volvo Penta, and others, making it straightforward to find the right replacement part for virtually any application.</p>

Part Number

18-9802
05/07/2036 10:41 AM
Sale Price

$215.88

In Stock (5)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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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 18-9802 is a self-powered inductive timing light designed for marine engine tuning and diagnostic work. This professional-grade tool helps ensure proper ignition timing on outboard and sterndrive engines for optimal performance and fuel efficiency.

Key Features:

  • Self-powered design requires no external power source for convenient portability
  • Accurate timing readings up to 10,000 RPM for high-performance applications
  • Inductive pickup clamps directly to spark plug wire without adapters
  • Bright xenon strobe light for clear timing mark visibility in all conditions
  • Durable construction suitable for marine and powersports environments
  • Works with conventional and electronic ignition systems

This timing light is an essential tool for mechanics, technicians, and serious DIY enthusiasts working on marine engines. Proper timing adjustment helps prevent engine damage, reduces emissions, and ensures peak engine performance.

Products specifications

Replaces

Mercury 91-99379

Easy

great !

Great price.

Good quick checkout.

Shipping looks to be fairly quick. I'm satisfied so far. I am now waiting for delivery and hope it is as smooth as process as the purchase.

I'm hoping you have my tie rod ends this time, a few months ago I order this part but unfortunately I guess you ran out but if you guys come threw this time than you earn 5 stars from me.u guys get 5 stars thanks for having my part this time I will be ord

Very low prices. Shipping a little pricy. Hard to find a discount code on the web. Overall great store. Order # 30155

so far so good

Wow a great price for a budget minded person,outstanding sales staff,tech advice.In these times were a dallor must go the mile I am glad that there is a company like Autoplicity out there.Helping the working man.It pays to shop Autoplicity,Thank-you.

Best price I could find anywhere. Almost 10% less than my typical sources and the item shipped in less than 24 hrs.<br>

good price fast shipping

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