Selling an exceptionally complete, heavily upgraded 1964 Huber Maintainer M500 Motor Grader. Driven by a reliable Continental F-162 4-cylinder gasoline engine, this compact utility grader is great for smaller spaces and long gravel ranch roads, private driveways, and tight commercial grading jobs.

This unit features the rare and highly desirable Front Knockdown / Dozer Blade along with the central underbelly grading moldboard.

Recent Premium Upgrades & Major Work Completed:

• BONUS Extra Rear Tires: Includes an additional set of rear AG (Agricultural) tires mounted on wheels. Perfect for swapping out if you need deep-lug tractor traction for farm, mud, or snow work.
• Turn-Key Reliability: Recently tuned up with a brand new carburetor. Starts right up and runs perfectly.
• Upgraded Operator Comfort: Custom-built seat post with added operator seat installed. Original models required the operator to stand while driving—this configuration allows you to work comfortably all day long.
• 12V Alternator Conversion: Upgraded to a modern Delco-style 12-volt alternator for reliable battery charging and easy 12V starting.
• Spin-On Oil Filter Conversion: Retrofitted with a modern adapter block to use standard, off-the-shelf spin-on oil filters (NAPA Gold 1452 / Wix 51452) for simple oil filter changes.
• Tires: Floatation tires as well as AG tires for all season use.
• Complete Sheet Metal: Factory steel overhead sun canopy/roof structure and complete metal engine side curtains are fully intact and present.

Condition: Mechanically sound, all mechanical-over-hydraulic controls (blade tilt, side-shift, lift, and front dozer) function smoothly. No major leaks. This is a highly functional, well-maintained classic workhorse that needs nothing to go straight to work. I also have a complete maintenance manual that will come with it.

Please message with any questions.