My Account
Shopping Cart

Sierra 116-250-0343 ShieldsFlex II 3/4" Water/Exhaust Marine Hose 10 Ft

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

116-250-0343
06/02/2036 5:28 AM
Sale Price

$67.22

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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 116-250-0343 is a 10-foot length of ShieldsFlex II Series 250 marine water and wet-exhaust hose with a 3/4" inner diameter. Engineered for demanding marine environments, this premium hose is built from black synthetic rubber and designed for long-term reliability in engine water intake, wet-exhaust, and related plumbing applications aboard your vessel.

Key Features:

  • Wire Helix Reinforcement: Internal wire helix embedded between plies of heavy-duty synthetic cord allows for long runs and tight bends without kinking or collapsing
  • Temperature Rated: Handles continuous temperatures up to 200°F and intermittent peaks up to 250°F
  • Chemical Resistance: Resistant to exhaust fumes, ozone, mild chemicals, antifreeze, and saltwater
  • Abrasion & Odor Resistant: Outer cover resists wear and minimizes exhaust odor permeation
  • SAE J2006 Compliant: Meets or exceeds SAE J2006 standards for certified wet-exhaust hose, with twice the required ozone resistance
  • Versatile Applications: Suitable for engine water intake, marine wet-exhaust systems, bilge discharge, scupper lines, head connections, holding-tank connections, and other below-waterline applications
  • 3/4" Inner Diameter, 10-Foot Length: Pre-cut length ready for installation

The ShieldsFlex II Series 250 is a trusted standard in marine hose technology, providing the durability and flexibility needed for both inboard and sterndrive engine plumbing systems. The black synthetic rubber construction and wire-reinforced design make it an ideal replacement or upgrade hose for a wide range of marine water and exhaust routing needs.

Ordering was easy.

So far, so good. Right part, fit perfect. What's else can a man ask?

Nice and easy

I have ordered a Thule #45050 from Autoplicity as these guys were offering it at an amazing sale price. Shipping was fast and communications were no issues. I highly recommend doing the business with them.<br><br>Alex

Very convenient

Had a hitch that no one seemed to have at a reasonable price.

Just what I've been looking for thank you

Easy

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