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Sierra 18-7961 Marine O-Ring 3.650" ID x 0.135" Width

Manufacturer

Picture for manufacturer Sierra

Part Number

18-7961
11 reviews
Sale Price

$5.08

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra International 18-7961 is a precision marine O-ring seal designed to meet or exceed original equipment manufacturer (OEM) specifications. With an inside diameter of 3.650" (92.7mm) and a cross-section width of 0.135" (3.4mm), this large-diameter O-ring is a direct-fit replacement for Mercury Marine outboard and sterndrive powerhead applications.

Engineered by Sierra International — a brand trusted by marine technicians worldwide — this O-ring delivers reliable sealing performance to prevent fluid leaks and maintain proper engine operation. It is a cost-effective, quality alternative to costly OEM replacement parts.

Key Specifications:

  • Inside Diameter (I.D.): 3.650" (92.7mm)
  • Cross-Section Width: 0.135" (3.4mm)
  • Designed to meet or exceed OEM specifications
  • Backed by the SeaStar Solutions Two-Year Warranty

Cross-Reference Part Numbers:

  • Mercury Marine: 25-47254
  • Mallory: 9-76569
  • Sierra: 18-7961

This Sierra O-ring is a dependable, dealer-quality replacement that installs with no modification required, making it an ideal choice for both professional marine technicians and experienced do-it-yourself boaters.

The order was shipped promptly, and everyone was is good working condition. I will order from here again!!

Hassle free online shopping experience

Pretty easy transaction

Quick and easy. Website was easy to navigate via cell phone and checkout was fast and painless. Took over a day to get a shipping notification though. Would have been nice to had it for the weekend

By far the best price I found on a Bak flip bed cover! Shipped the next day, although I did have to call to get the tracking number. However, customer service was very nice and emailed me the tracking number immediately. I will do business here again!

quick and easy shopping

Fast and easy

Quick & Easy, very fast delivery.

Good so far

Real easy. Thanks

Great pricing! Can't beat that. And also speedy shipping! What more can you ask from an online retailer??<br>

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