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Sierra 18-7642 Camshaft Position Pick-Up Assembly for Volvo Penta & MerCruiser

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

18-7642
08/03/2036 10:21 AM
Sale Price

$211.19

In Stock (10+)

delivery box

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 18-7642 is a direct-replacement camshaft position pick-up assembly designed for Volvo Penta and MerCruiser marine gasoline engines. This Hall-effect sensor monitors camshaft position and rotational speed, delivering critical data to the engine control module to regulate fuel injection and ignition timing for reliable engine performance on the water.

Built to meet or exceed original equipment specifications, this pick-up assembly features an oil-filled design for improved cooling and extended service life. The connector geometry and terminal layout match factory wiring harnesses, allowing for straightforward installation without modification.

Key Features:

  • Direct OEM replacement camshaft position pick-up assembly
  • Oil-filled construction for enhanced cooling and long service life
  • Matches factory connector geometry for plug-and-play installation
  • Meets or exceeds original equipment performance standards

Replaces These Part Numbers:

  • Volvo Penta: 3863130
  • MerCruiser / Mercury Stern Drive: 898141, 8M0156229
  • Mallory: 9-29806
  • CDI: E13-0002
  • Indmar: 556350

Products specifications

Type

Ignitions

Easy

good so far

Had my belt in stock!

Easy just hope it fits and quick delivery

Great service and quick

No hassles and the product came quickly.

To all of you great job.

Autoplicity had the part I needed at a price half of the local autoparts store. Shipping is reasonable when multiple items are purchased, for one item the shipping charge seems high. Took them awhile to ship the order(3 full business days) which I think is too long, but they are the cheapest. Only other comment was I usedAmazon payments to pay and then got a coupl of emails from autoplicity asking me to complete my order, which I had already done.<br>Overall a pretty good experience and an excellent price.

Cheapest carb I found for my use, thanks.

Easy shopping for required part &amp; easy check out and competitive prices.

Simple to purchase from you using paypal

this was a very easy and user friendly site to use.

Very easy !

Found what I needed- no probelm.

Great experience hopefully fast shiping

Quick

this was my first time shopping at Autoplicity and it kind of made me nervous not really knowing anything about their site but i recieved an order confirmation immediatley after ordering and it was shipped extremely fast.

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