18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive

100% authentic products

Guaranteed genuine quality

Secure checkout

Safe & encrypted payments

Fast shipping

Quick and reliable delivery

Hassle-free returns

Easy returns if needed

Customer First

Your satisfaction matters

Verified Sellers

Carefully selected suppliers
Home / Automotive / Replacement Parts / O-Rings & O-Ring Kits

18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive

$26.64 USD

✓ No hidden fees — taxes included in the price & Free Shipping.

✓
Get 5% OFF Today
Use this coupon at checkout.
TRY5
Brand : Sierra Marine
Sierra 18-7121 O-Ring is designed for OMC, Mercury, and Mercruiser stern drives.
Out of stock
Quantity :
Top Brands. Best Prices. Fast Shipping.

Discover quality parts and accessories for every adventure

Shop now before stocks run out — smart shoppers move fast!

Explore Now

Product Comparison We Made Easy For You

18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive
18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive
View Detail
Type
O-Rings & O-Ring Kits
Title
18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive
Price
$26.64 USD
Vendor
Sierra Marine
Description
Designed for use with OMC, Mercury, and Mercruiser outboards and stern drives, Sierra's 18-7121 O-Ring features a 3.100" I.D.and a 0.135" width.One o-ring is included per package.It is interchangeable with Mallory 9-76651, GLM 82350, Mercury Marine 25-35029, OMC Stern Drive 308621, and Mercruiser Stern Drive 25-35029, 27-882613, and 802231.Each product from Sierra meets or exceeds the original equipment part it replaces.

More about this item : 18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive

Designed for use with OMC, Mercury, and Mercruiser outboards and stern drives, Sierra's 18-7121 O-Ring features a 3.100" I.D.

and a 0.135" width.

One o-ring is included per package.

It is interchangeable with Mallory 9-76651, GLM 82350, Mercury Marine 25-35029, OMC Stern Drive 308621, and Mercruiser Stern Drive 25-35029, 27-882613, and 802231.

Each product from Sierra meets or exceeds the original equipment part it replaces.

18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive
Key Features
  • I.D.: 3.100" or 78.7mm
  • Width: 0.135" or 3.4mm
  • Interchangeable with Mallory 9-76651
  • Interchangeable with GLM 82350
  • Interchangeable with Mercury Marine 25-35029
  • Interchangeable with OMC Stern Drive 308621
Technical Specifications
  • Length : 7.2 lb
  • Width : 5.9 lb
  • Height : 0.3 lb
  • Weight : 0.01 lb
Product Identifiers
  • ASIN B001RIA7D4
  • UPC: 030999321398
Shipping Information
  • Ships From : United States
  • Brand : Sierra Marine

Frequently Asked Questions About : 18-7121 Sierra Marine O-Ring for OMC Sterndrive/Cobra Stern Drive

01 What is the I.D. of the Sierra 18-7121 O-Ring?

The I.D. is 3.100".

02 What is the width of the Sierra 18-7121 O-Ring?

The width is 0.135".

03 Which stern drives is the Sierra 18-7121 O-Ring designed for?

It is designed for OMC, Mercury, and Mercruiser stern drives.

More to Explore

Free Shipping on Every Order

Get Free Shipping on Every Order

Return within 15 days

Return your purchase easily within thirty days.

Quality Assurance

Every product tested for guaranteed premium quality.

24/5 Customer Support

Monday – Friday: 9:00 AM – 6:00 PM (EST) - Email : info@trybeepbeep.com