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Sierra 118-70704 Molded Cooling System Hose for Volvo Penta Stern Drives

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

118-70704
06/02/2036 10:37 PM
Sale Price

$13.58

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Product Details

The Sierra 118-70704 is a precision-molded cooling system hose designed specifically for Volvo Penta stern drive applications. This replacement hose features a 1 1/4" inner diameter and is engineered to provide exact OEM fit and function.

Key Features:

  • EPDM rubber construction with synthetic knit reinforcement for durability
  • Molded design ensures full water flow through bends and simplifies installation
  • Compatible with fresh water and raw water cooling systems
  • Direct replacement for Volvo Penta OEM part number 856306
  • 1 1/4" inner diameter for precise fitment
  • Engineered to meet OEM specifications for reliable performance

Sierra molded cooling system hoses are designed to deliver OEM-quality performance with proper fit, form, and function. The molded construction eliminates kinks and flow restrictions while making installation easier than universal straight hose alternatives.

Quality of products (Marine grade cabinet hardware & hooks) was excellent and as expected. Delivery was quick. Everything came in two shipments. The first arrived faster then indicated, the second exactly as indicated. Smooth experience.

received in good shape

Great

Easy process navigation of website is very food

Everything went well with the exception I paid for 2 day shipping and received my package 4 days later, other than that all good.

The parts were shipped promptly, and were the correct ones. Excellent!

Found the exact tire I was looking for; Goodyear Kevlar Wrangler 33x12.5 R15. No one else had it. I called the 1-800 number for several technical questions. At the menu I clicked 1 and a technical representative immediately picked up and answered all my questions. Very knowledgeable. Great service.

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