Sierra 18-6245 Anode Mounting Bolt, Stainless Steel, for Mercury Outboard Anodes 18-6011, 18-6014, 18-6016

The Sierra 18-6245 Anode Mounting Bolt is a stainless steel hardware fastener made to secure Mercury outboard sacrificial anodes to the lower unit and other mounting points. It is designed for use with Sierra anode kits 18-6011, 18-6014, and 18-6016, giving boat owners a reliable, correctly sized bolt when replacing worn or corroded anode hardware rather than reusing a compromised original fastener.

Built from stainless steel for corrosion resistance in the marine environment, the bolt features a flat head style with a hex head type and UNC threading, sized to match the mounting holes on compatible Mercury outboard anode assemblies. Sierra manufactures the 18-6245 to meet or exceed the quality of the original equipment part it replaces, and it cross-references directly to Mercury Marine and Mercruiser hardware as well as GLM aftermarket numbers, making it easy to identify as a drop-in replacement.

This is a small, low-cost item intended for routine anode maintenance and replacement, an essential and recurring task for protecting outboard lower units, engine components, and other submerged metal parts from galvanic corrosion.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-6245
• Material: Stainless Steel
• Head Style: Flat
• Head Type: Hex
• Thread Size: M18
• Thread Type: UNC
• Item Hardness: Grade 10.9
• Manufacturer Grade: Grade 18
• Exterior Finish: Machined
• Color: White
• Compatible Groove Diameter: 1.5 Inches
• Item Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 0.1 pounds
• UPC: 808282105556

Fitment

• Use with Sierra anode kits 18-6011, 18-6014, and 18-6016

Replaces (OEM)

• Mercury Marine 10-32470
• Mercruiser 10-47580
• Mercruiser 10-74728
• GLM 21740

Frequently Asked Questions

What is the Sierra 18-6245 used for? It is a stainless steel bolt used to mount sacrificial anodes onto Mercury outboard engines, replacing worn or corroded original anode mounting hardware.

Which anode kits does the 18-6245 bolt fit? The Sierra 18-6245 is designed for use with Sierra anode kits 18-6011, 18-6014, and 18-6016.

What OEM part numbers does the 18-6245 cross-reference to? It cross-references to Mercury Marine 10-32470, as well as Mercruiser 10-47580 and 10-74728, and GLM 21740.

Is the Sierra 18-6245 made from stainless steel? Yes, the 18-6245 Anode Mounting Bolt is constructed from stainless steel for corrosion resistance in marine use.

What are the dimensions of the 18-6245 bolt? The bolt measures 0.39 x 0.39 x 0.39 inches with a compatible groove diameter of 1.5 inches.

How much does the 18-6245 Anode Mounting Bolt weigh? It weighs 0.1 pounds.

What head type does the Sierra 18-6245 have? It has a flat head style with a hex head type.

Does the Sierra 18-6245 meet OEM quality standards? Sierra manufactures the 18-6245 to meet or exceed the quality of the original equipment Mercury Marine part it replaces.

What thread type is used on the 18-6245? The 18-6245 uses UNC threading with an M18 thread size.

Can the 18-6245 be used on any Mercury outboard anode? It is specifically matched for use with Sierra anode kits 18-6011, 18-6014, and 18-6016, so confirm your anode kit number before ordering.

What is the finish on the Sierra 18-6245? It has a machined exterior finish.

What grade is the Sierra 18-6245 bolt rated? It is rated Grade 10.9 hardness and manufacturer Grade 18.