Sierra 23-6401 Zinc Pencil Anode for Onan Generators

The Sierra 23-6401 is a zinc pencil anode designed specifically for Onan marine generators. This corrosion protection component helps safeguard your generator's cooling system by sacrificially corroding in place of more expensive metal components like shafts, heat exchangers, and other internal parts.

Key Features:

• Zinc alloy construction ideal for saltwater applications
• Pencil-style design for easy installation
• Dimensions: 3/8" x 1-1/4" x 1/2"
• Direct replacement for Onan part number 130-4434
• Meets or exceeds OEM specifications

Compatible with Onan Generator Models:

• MDKAV, MDKAW (Spacesaver), MDKAZ
• MDKBD, MDKBD (w/Isolated Ground)
• MDKBE, MDKBE (w/Isolated Ground)
• MDKBF, MDKBF (w/Isolated Ground)
• MDKBG, MDKBH, MDKBK, MDKBL, MDKBM
• MDKBN, MDKBP, MDKBR, MDKBS, MDKBT, MDKBU, MDKBV

Sierra Marine has been a trusted name in the marine industry for over 50 years, providing high-quality replacement parts engineered to withstand harsh marine environments. Regular anode replacement is essential for maintaining optimal generator performance and preventing costly corrosion damage.