Sierra 18-7965-1 10 Micron Fuel/Water Separator Filter Kit, Replaces Yamaha MAR-MINIF-LT-AS

The Sierra 18-7965-1 is a 10 Micron Compact Fuel/Water Separator Kit built to trap water and contaminants before they reach your engine's fuel system. The kit pairs a stainless steel mounting bracket with a 10 micron filter element, giving you a complete, ready-to-mount separator assembly rather than a bare filter alone. The compact bracket and filter footprint make this kit well suited to installations where mounting space is tight, while the 10 micron media rating provides fine filtration to protect injectors and carburetors from water intrusion and debris.

Construction is stainless steel with a white finish, and the assembly uses barb-style connectors on 1/2 inch NPT threaded ports for a secure fuel line connection. The kit ships as a 2-piece set: one 18-7774 bracket and one 18-7865 filter, so everything needed to mount a fresh separator is included in a single package. This kit is designed as a direct equivalent for the Yamaha MAR-MINIF-LT-AS fuel/water separator, making it a straightforward replacement option for boat owners servicing that application.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7965-1
• Kit Contents: 1 - 18-7774 bracket, 1 - 18-7865 filter
• Micron Rating: 10 Micron
• Material: Stainless Steel
• Color: White
• Size: 1/2 inch
• Connector Type: Barb
• Thread Type: NPT
• Exterior Finish: Stainless Steel
• Item Dimensions: 11.75 x 5.5 x 4 inches
• Number of Pieces: 2
• Weight: 1.8 pounds

Fitment

Designed as a replacement for the Yamaha fuel/water separator listed below.

Replaces (OEM)

• Yamaha MAR-MINIF-LT-AS

Frequently Asked Questions

What does the Sierra 18-7965-1 kit include? The kit includes one 18-7774 mounting bracket and one 18-7865 filter element, giving you a complete 2-piece fuel/water separator assembly ready to mount.

What micron rating is the 18-7965-1 filter? It uses a 10 micron filter element, rated to catch fine water droplets and particulate before fuel reaches the engine.

Is the 18-7965-1 a direct replacement for a Yamaha separator? Yes, the Sierra 18-7965-1 is built to replace the Yamaha MAR-MINIF-LT-AS fuel/water separator.

What material is the Sierra 18-7965-1 assembly made from? The bracket and filter housing are stainless steel with a white exterior finish.

What size fuel line connection does this kit use? The 18-7965-1 uses 1/2 inch NPT threaded ports with barb-style connectors for the fuel line hookup.

What are the dimensions of the 18-7965-1 separator kit? The assembled kit measures 11.75 x 5.5 x 4 inches.

How much does the Sierra 18-7965-1 kit weigh? The complete 18-7965-1 kit weighs 1.8 pounds.

Can I order just the filter or just the bracket separately? The 18-7965-1 is sold as a complete kit containing both the 18-7774 bracket and 18-7865 filter; those components also carry their own individual part numbers if ordered separately.

Does the 18-7965-1 come with mounting hardware? The kit includes the bracket and filter assembly; no separate pipe plugs are listed as part of this particular kit configuration.

Is the 18-7965-1 suitable for tight engine bay installations? Yes, it is described as a compact separator kit, designed for a smaller mounting footprint than standard-size separator assemblies.