SIERRA 118-2613 Lower Unit Gearcase Seal Kit

Compatible Engines

The SIERRA 118-2613 lower unit gearcase seal kit is a critical component ensuring the integrity and reliability of your boat's drive system. This high-quality replacement part is designed for outboard motors, protecting the gearcase from water ingress and oil leaks. Due to the absence of a specific list of compatible engine models in official catalog data, compatibility must always be verified by the manufacturer catalog number 118-2613 or the original OE number. If you have any doubts regarding fitment for your engine, we strongly recommend contacting our store support team, who will assist you in selecting the correct part.

Installation and Operation

Replacing seals in the lower unit is a procedure that should be performed regularly, ideally during the annual engine inspection. Correct installation of the new SIERRA 118-2613 seal requires careful cleaning of the mounting surfaces and attention to detail to ensure proper seating of the seals, avoiding damage during assembly. Using original or high-quality replacements like this Sierra kit guarantees repair durability and safety on the water. Regular replacement of these elements prevents corrosion of internal gearcase parts.

• Original Sierra Quality – guarantees sealing and durability in harsh marine conditions.
• Gearcase Protection – effectively prevents oil leaks and water intrusion.
• Complete Kit – includes all necessary seals for comprehensive lower unit repair.
• Easy Installation – precise dimensions facilitating replacement in standard service conditions.