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Engineered Marine Products 1300-36040 Marine Knock Sensor for Big Block V8 Engines

Manufacturer

Engineered Marine Products

<h3>About Engineered Marine Products (EMP)</h3><p><strong>Engineered Marine Products</strong>, widely known in the boating world as <strong>EMP</strong>, has been a trusted name in marine parts manufacturing for over 40 years. The company supplies OEMs, distributors, dealers, and rebuilders worldwide with high-quality aftermarket components engineered to meet or exceed original equipment manufacturer (OEM) specifications. Whether you maintain a weekend fishing boat or a performance inboard, EMP&apos;s extensive catalog is built to keep marine engines running reliably season after season.</p><h3>A Marine Parts Specialist Built on Engineering Precision</h3><p>EMP&apos;s foundation is precision manufacturing. Their design and production processes leverage modern engineering technology, with a focus on dimensional accuracy, material quality, and long-term durability in the demanding marine environment. Salt spray, constant vibration, wide temperature swings, and moisture ingress are realities every marine component must survive — and EMP engineers its parts with exactly those conditions in mind.</p><p>The brand&apos;s catalog spans a remarkably wide range of marine engine subsystems. From cooling and fuel delivery to gearcases, propellers, transom components, and steering systems, EMP offers solutions for outboard engines from manufacturers including Mercury/Mariner, Yamaha, BRP (Johnson/Evinrude), and Force, as well as inboard/sterndrive platforms such as MerCruiser, OMC, and Volvo Penta.</p><h3>Ignition and Electrical Components</h3><p>One of EMP&apos;s most comprehensive product areas is marine ignition and electrical systems. Their <a href="/13199-engineered-marine-products-ignition-control-module-10488">Ignition Control Modules</a> and related ignition components cover a broad spectrum of inboard and outboard applications — from distributor caps and rotors for Volvo Penta V8 engines to ignition coil assemblies compatible with MerCruiser 3.0L through 8.4L GM-based powerplants and OMC configurations. Reliable spark delivery is critical to engine performance and starting consistency on the water, and EMP&apos;s ignition lineup is designed to deliver dependable output across the entire RPM range.</p><h3>Gaskets, Seals, and Engine Integrity</h3><p>Keeping a marine engine leak-free is just as important as keeping it firing correctly. EMP&apos;s <a href="/13199-engineered-marine-products-gaskets-seals-201268">Gaskets &amp; Seals</a> lineup addresses the full range of engine and gearcase sealing needs — including gearcase seal kits, Teflon lip seals, fuel injector crush ring kits, and comprehensive engine gasket sets. Proper sealing prevents water intrusion, oil loss, and exhaust leaks that can quickly sideline a boat and lead to expensive engine damage.</p><h3>Why Boaters and Technicians Choose EMP</h3><ul style="list-style:disc"><li><strong>OEM-Grade Quality:</strong> Parts are engineered to meet or exceed original manufacturer specifications, ensuring proper fit and reliable function.</li><li><strong>Broad Application Coverage:</strong> EMP covers major outboard and inboard/sterndrive platforms from leading marine engine brands.</li><li><strong>Trusted Supply Chain:</strong> EMP products are sold through OEMs, distributors, and dealers globally, reflecting deep industry confidence in the brand.</li><li><strong>40+ Years of Manufacturing Heritage:</strong> Decades of marine-specific engineering experience inform every product in the EMP lineup.</li></ul><p>For boat owners, marine technicians, and engine rebuilders who demand components they can count on, Engineered Marine Products delivers the quality and application coverage to get the job done right.</p>

Part Number

1300-36040
09/12/2036 5:28 AM
Sale Price

$68.63

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Usually delivered within 2 days

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Product Details

The Engineered Marine Products 1300-36040 is a direct-replacement marine knock sensor designed for large displacement GM V8 marine engines, including MerCruiser, Volvo Penta, and OMC sterndrive applications. The knock sensor continuously monitors the engine block for detonation and pre-ignition events, sending a precise signal to the engine control module (ECM) to retard ignition timing as needed — protecting internal engine components and optimizing performance across varying fuel conditions and load levels.

Key Features:

  • Direct OEM replacement knock sensor for big block GM marine V8 engines
  • Compatible with 454 EFI, 454 MAG, 500 Bulldog EFI, 502 MAG, 7.4L, and 8.2L engine configurations
  • Detects engine knock and detonation across a broad range of operating frequencies
  • Sends accurate signal to the ECM for real-time ignition timing correction
  • Built to withstand the demanding marine environment
  • Cross References: Replaces MerCruiser 805544T / 8M0077616, Sierra 18-7703, Mallory 9-33500, OMC 3854512, Volvo Penta 3854512

Engineered Marine Products (EMP) is a trusted supplier of precision marine engine components. The 1300-36040 knock sensor is engineered to OEM standards, ensuring a proper fit and reliable long-term performance for inboard and sterndrive marine engines.

Good

great to find parts

Priced less than anywhere on the web for the same product. Arrived sooner than expected.

just placed the order, ask me later

Good price and fast delivery.

I am very pleased with my purchases from Boatplicity. They had some hard-to-find items in stock and delivery was prompt.

Fair price reasonable delivery time

Sender arms were long enough that I could bend arms to match oem.

Great and trustworthy

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