My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-7120 Marine O-Ring Replacement for Mercury 25-38933 / OMC 307853

Manufacturer

Picture for manufacturer Sierra

Part Number

18-7120
13 reviews
Sale Price

$2.74

2 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
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 18-7120 is a precision marine O-ring designed as a direct replacement for select Johnson/Evinrude, OMC, MerCruiser, and Mercury outboard and sterndrive engines. Built to meet or exceed original equipment specifications, this O-ring provides a reliable seal in demanding marine environments.

Specifications:

  • Inner Diameter (I.D.): 0.215" (5.5mm)
  • Width: 0.065" (1.7mm)
  • Package Includes: 1 O-ring

Replaces the Following OEM Part Numbers:

  • Mercury Marine / MerCruiser: 25-38933
  • Mercury Sport Jet: 25-38933
  • Johnson/Evinrude Outboard: 307853
  • OMC Stern Drive: 307853, 332598
  • Chrysler/Force/US Marine: 25-25007, 25-38933, 25-F498618, 26-817469, 27-843672, F498619
  • GLM: 80090
  • Mallory: 9-76526

Sierra marine engine parts are engineered to meet or exceed OEM performance standards and are backed by Sierra's limited warranty covering defects in workmanship and materials for the useful life of the product.

First of all, I can not believe how fast I recieved my order, 2 DAYS! Best of all, the instructions made it easy for a non mechanic like me to install.

So far so good! :)

transaction was fast,made shopping a good experience.

Thanks

Shopped around for a VDO gauge all over the internet incluing ebay, amazon and at least a dozen online retailers. Autoplicity was at least 10% cheaper than anybody else and a good 30% cheaper than most. The outstanding reviews made me more confident in ordering fom them for the first time.

Great Prices! and Great Customer Service thanks again!

Excellent prices and fast shipping. I will order from here again

The listed matching vehicles were a little vague, still a little uncertain if the part will fit, will have to find out for sure once it arrives

Not sure why I had to pay tax, but very good price.

so far...quick/easy and very nice. lets see about shipping time and returns (if necessary)....???

Received my package today. Shipping was fast and it was about the best price I could find for my Cam. I'll buy from them again.

Quick and easy

good price

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