My Account
Shopping Cart

Sierra 18-1237 Oil Pan Gasket for Marine Engines

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

18-1237
06/21/2036 1:53 PM
Sale Price

$44.56

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-1237 is a premium oil pan gasket designed for marine engine applications. This gasket provides a reliable seal between the oil pan and engine block, preventing oil leaks and maintaining proper lubrication system integrity in harsh marine environments.

Key Features:

  • Direct replacement for OEM gaskets - ensures proper fit and function
  • Marine-grade construction resists oil, heat, and moisture
  • Precision-cut design matches original equipment specifications
  • Compatible with multiple marine engine manufacturers

OEM Cross-References:

  • Crusader: 7090380
  • Mercury Marine: 27-13865-1
  • OMC: 3856138

Sierra International is a trusted name in marine engine parts, offering reliable replacement components that meet or exceed OEM standards. This gasket is an essential component for engine rebuilds, oil pan removal, or routine maintenance to prevent costly oil leaks.

great

Good prices and very good delivery timesAAAAAAAAAAAAAAAAA

transaction was fast,made shopping a good experience.

This company seemed to have the product in stock and at the best price on the net. By shopping at Autoplicity I saved more than 50 bucks and in this economy thats like a weeks pay check. Im saving this seller and doing all my shopping here from now on!!!!

Very easy to use.

Easy interface

So far, a great shopping experience.

great , but I dsid not receve 20 percent discount on shipping

best price

Amazingly fast shipping. Item came as ordered & properly packaged. I received item faster than expected & on time for my father in law's birthday. Will definitely use Autoplicity again.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy