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Sierra 18-2527-9 Cooling Water Pipe Seal Ring for Volvo Penta - 5 Pack

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

18-2527-9
08/07/2036 9:05 PM
Sale Price

$46.14

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-2527-9 is a pack of five OEM-replacement seal rings engineered for use in the cooling water pipes of Volvo Penta marine engines. Designed to maintain a leak-free seal in the engine's cooling system, these rings are a direct, drop-in replacement for the original Volvo Penta hardware.

Key Features:

  • Pack of 5 seal rings for cooling water pipe applications
  • Meets or exceeds original equipment quality standards
  • Replaces OEM Volvo Penta part number 831617 / 831617-6
  • Engineered to Sierra's high-quality marine-grade specifications

Compatible Engine Models:

  • AQ165A
  • AQ170A, AQ170B, AQ170C
  • MD21A (S/N MD-103387 & Up)
  • MD21B

Sierra International is a trusted manufacturer of aftermarket marine engine components. The 18-2527-9 seal rings are a cost-effective solution for routine cooling system maintenance and repairs on Volvo Penta inboard/outboard engines.

Paid for UPS 2nd Day service on Wednesday afternoon... called Autoplicity about lack of shipping info on Thursday AM and was told the system takes 24 hrs to update. On Friday tracking put the shipment in the delivery location at 1:30am. UPS customer service advised they could have refunded shipping cost if I had shipped direct.... not sure how or why I would accomplish the task. UPS advised contacting the shipper to resolve the issue.. really? Product sat in the UPS delivery center until Monday AM and was delivered Monday PM. Product was installed in my tractor Monday evening.... now it has rained every day and I can't cut the field. Question is really, why offer 2 day service at a premium when no one does what they promise... Purchased these bearings at Autoplicity because of the 2 day service..... who dropped the ball? Most on-line retailers shipping options change if and when you are outside guidelines. That wasn't the case here.

The customer service rep I was able to speak to very helpful and was able to email me an actual image of the product that I wanted before purchasing instead of the generic image that was being used on the website

I've only clicked the place order button so far.

Good place Better price and cheaper shipping than parts geek

Easy ordering process. Fast, free shipping!

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