Scag Hour Meter, Inductive Part # 484565

What It Is

The Scag 484565 is an inductive hour meter that tracks engine run time by sensing spark plug pulses—no mechanical connection required. It’s designed for Scag commercial zero-turn mowers and other small engines with a spark plug wire.

Fitment & Compatibility

• Brand fit: OEM Scag part, but works on any gas engine with a spark plug wire (inductive pickup wraps around the wire).
• Model check: Confirmed for Scag Freedom Z, Turf Tiger, Cheetah, and V-Ride series (check your model’s parts diagram for 484565).
• What to measure: Meter body is 1.5” x 1.5” x 1” deep; mounting hole centers are 1.75” apart. Verify your dash cutout or bracket matches.
• Wiring: Two wires—one to ground, one to constant 12V power (battery). No connection to the ignition switch needed.
• Avoid: Not for diesel engines (no spark plug). Will not work on mowers with magneto-only ignition (no battery power).

Key Things to Know

• Installation difficulty: Easy—wrap the inductive pickup around the spark plug wire, connect red to 12V, black to ground, and mount with included screws.
• Power requirement: Needs constant battery power; if your mower has a kill switch that cuts all power, the meter will reset to zero each time.
• Durability: Sealed against moisture and vibration, but the LCD display can fade in direct sun over time—position away from constant UV exposure if possible.
• Accuracy: Inductive pickup counts every spark, so it tracks run time even if the engine is misfiring. No calibration needed.

Should You Buy It

If you need a simple, reliable hour meter for a Scag commercial mower or any gas engine with battery power, this is a solid OEM choice. It’s easy to install and accurate, but if you want a backlit display or a model that retains time without constant power, look elsewhere. Best for users who want a direct-fit replacement without guessing wire connections.