Manufacturer
<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
$21.26
In Stock (10)
Usually delivered within 2 days
Add To Cart
Check out with
No Hassle Returns
Live-in-stock inventory
Fitment guaranteed
The Sierra 18-1917 is a stainless steel manifold block off plate designed for marine exhaust system configurations. This essential component is used when blocking off the fresh water side from the raw water side of your exhaust system, allowing you to properly seal and isolate different cooling circuits.
Key Features:
This block off plate ensures proper sealing when converting or modifying your marine engine's cooling system configuration. The stainless steel construction provides long-lasting performance in harsh marine environments where corrosion resistance is critical.
Crusader Stainless steel - small block V8, 305-350 cid (models 220 & 270), GM big block V8, 454 cid (models CH350 & 454XL). Use with gasket 0309, 0305
Crusader 97296
Good so far
Miguel Latigo
seemed a bit hard to find products, but the prices were great and delivery prompt
peteypetey
I ordered my shifter last night and I got a tracking number today, shipment seems to be speedy and arrive in 3 days with standard shipping.. cheapest price I can find anywhere!
egonzalez65
Good
kevin ratliff
Quick and easily linked to amazon for payment.
Rondie Robinson
Great service, best price available online and realistic shipping costs, Ordered 5PM Friday, shipped Monday , received Tuesday end of day. Beats driving to the local store. Highly recommended !!<br><br>RS Larchmont NY
smithran
2nd time using So easy to use and had the best prices available!!! A++++
neualex
Quick and easy
tanner morse
Your website is good but I wish the pictures you show for the items was correct so your customer can feel sure about their purchase so I hope what I just bought is what I think it is.
Tommy Davidson
Thanks
Archil Gorgadze
Autoplicity had what I wanted at the lowest price I could find and shipped it fast. The online ordering form was a little awkward to use as was calling customer service. I called customer service and the guy answered "yea".
Delinquent
best price
Ryan Coons
Best price found. Excellent customer service. Thank You!
911tman
Add your review
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