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
$35.37
2 left at this price
Usually delivered within 2 days
Add To Cart
Check out with
No Hassle Returns
Live-in-stock inventory
Fitment guaranteed
The Sierra 18-8511 Exhaust Manifold Mounting Kit is a complete hardware and gasket kit designed specifically for Volvo Penta marine engines with GM small block V8 configurations (305-350 cubic inch displacement). This kit provides all the necessary components needed to properly install the Sierra 18-1931-1 exhaust manifold.
Key Features:
Sierra Marine engine parts are manufactured to withstand the harsh marine environment and meet the demands of today's high horsepower engines. Each component is precision-engineered to ensure proper fit and function. This pre-assembled kit saves time by eliminating the need to source individual mounting components.
Replaces: Mallory 9-40970, Osco 5805-MK
UPC: 808282127077
Much better than expected. Received OEM part immediately and in good quality. Will definitely use the site again, thanks!
Eric E
Shipping was super fast, however product arrived with slight damage, had some minor paint chipping. Was disappointed, but installed anyways as I needed for use right away and didn't have time to return.
Scott D
Very fast service. Will shop again with . very low prices
Christopher M
So far so good
roger g
Great prices and fast shipping!!
Eugene W
Quick and easy ordering process
joseph s
Very good, liked that I could pay with Amazon.
Jonathan Klefot
quick and easy
keith
hope product is as nice as portrayed
Emanuel Jones
Easy process,, reasonable shipping.
Rick
Thank You
Darik
quick and easy shopping
Charles McAllister
LIFE IS GOOD! :-)
JAMES M YETSO
Order an item a day ago and the next day its shipped! Had a question and customer service was there when you needed it!
alung26
Great prices for the parts I needed to replace on my SUV, a bit hard to reach customer service when I had a question about the order. When I finally did reach CS, question was answered without any issues, shipping costs seem a bit high.
jam1616
Great selection, free shipping!
Jon Yarrow
The best!
Scott Sweeney
Fantastic seller! I ordered a full set of brakes for my car (at the cheapest price I could find around the net!) and had them within two days of placing the order...incredibly fast and professional.
csgardner45
The items shipped and arrived really fast. This was a great transaction even though shipping was a little high.
TK-1161
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