Sierra NEW Marine O-Ring 18-7133 Replaces: OMC 305123 NOS Part (LOT OF 3) 0810

Sierra Marine O-Ring — Part Number 18-7133
Brand: Sierra | Condition: New

You are purchasing a new Sierra Marine O-Ring, part number 18-7133. Sierra O-rings are precision-molded sealing components used throughout outboard, sterndrive, and inboard marine engine applications to prevent fluid leaks at fitting, housing, and component interfaces. Sierra is a leading manufacturer of aftermarket marine engine replacement parts trusted by marine technicians worldwide.

Condition Details: This is a new, uninstalled O-ring. As is common with NOS inventory, the original packaging may show signs of shelf wear or age. The O-ring itself is new and fully functional.

Part Number / Cross-Reference Information:

• Sierra Part Number: 18-7133
• We recommend verifying any OEM cross-reference numbers and specific application fitment through the official Sierra parts catalog at sierraparts.com or by contacting your local marine dealer prior to ordering.

Compatible Equipment: Marine outboard, sterndrive, and inboard engine applications — verify specific model, make, and serial number fitment before ordering.

Why Choose Quality Replacement Parts? Sierra marine parts are engineered to meet or exceed OEM specifications, delivering reliable performance in demanding marine environments. Sierra has been a trusted name in aftermarket marine replacement parts for decades.

Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.

Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience.

Please verify fitment using your engine's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!

QBS Parts, Inc. — Gardena, CA