Sierra 18-9789 Oil Filter Wrench, Fits 2-9/16 to 3-1/4 Inch Filters

The Sierra 18-9789 Oil Filter Wrench is a formed metal hand tool built to grip and remove oil filters in the 2-9/16 inch to 3-1/4 inch diameter range, a common size for marine engine oil filters. It uses a pivoting handle paired with a tempered metal band, a design that lets the band cinch down around the filter body for a secure hold while the handle provides the leverage needed to break the filter loose without crushing or puncturing the canister. The powder coated finish in white resists corrosion and wear in the marine environment where this tool is typically used, alongside engine bays and bilges exposed to moisture, fuel, and oil residue.

This wrench has a fixed square head style, allowing it to be driven with a standard ratchet or breaker bar for extra torque on filters that are seated tightly. Sierra builds this tool to meet the demands of routine engine maintenance on inboard and sterndrive marine engines, and it is sized specifically for the mid-range filter diameters that fall between Sierra's larger 18-9790 wrench and smaller 18-9778 wrench. Each wrench ships as a single unit ready to use for oil change service.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-9789
• Product Type: Oil Filter Wrench
• Filter Size Range: 2-9/16 inches to 3-1/4 inches
• Material: Metal
• Finish: Powder Coated
• Color: White
• Head Style: Fixed Square
• Weight: 1.92 pounds
• Country of Origin: Taiwan
• UPC: 808282125660
• Package Quantity: 1

Frequently Asked Questions

What filter sizes does the Sierra 18-9789 oil filter wrench fit? The Sierra 18-9789 is sized for oil filters ranging from 2-9/16 inches to 3-1/4 inches in diameter, covering a common mid-size range for marine engine oil filters.

What is the 18-9789 wrench made of? It is a formed metal tool with a tempered metal band and a pivoting handle, finished in white powder coat for corrosion resistance in marine environments.

Does the 18-9789 use a ratchet or breaker bar? Yes, the Sierra 18-9789 has a fixed square head style, which lets it be driven with a standard ratchet or breaker bar for added leverage on tight filters.

How much does the Sierra 18-9789 oil filter wrench weigh? This wrench weighs 1.92 pounds.

Where is the Sierra 18-9789 manufactured? The Sierra 18-9789 oil filter wrench is made in Taiwan.

Is the 18-9789 sold as a single tool or a set? It ships with a package quantity of 1, meaning each purchase includes one oil filter wrench.

What is the difference between the Sierra 18-9789, 18-9790, and 18-9778 wrenches? These are three different sizes in Sierra's oil filter wrench lineup: the 18-9790 fits 3-5/16 to 3-3/4 inch filters, the 18-9789 fits 2-9/16 to 3-1/4 inch filters, and the 18-9778 fits 2-7/16 to 3 inch filters, so the correct one depends on your filter's diameter.

What color and finish does the 18-9789 have? The Sierra 18-9789 has a white powder coated finish over its metal construction.

Is the Sierra 18-9789 a genuine Sierra part? Yes, 18-9789 is Sierra's own part number for this oil filter wrench, not a third-party or generic tool.

How do I know if the 18-9789 will fit my oil filter? Measure the outside diameter of your oil filter canister; if it falls between 2-9/16 inches and 3-1/4 inches, the Sierra 18-9789 will fit it.

What is included when I order the 18-9789? The order includes one Sierra 18-9789 oil filter wrench; no additional accessories are included.