01588300 15883 Starter Ignition Switch with 2 Keys Compatible with Ariens Gravely Zoom ZT XL Mini-ZT HVZ 34 42 50 1434 1534 1540 1640 1740 1840 1944 2040 2250 2350 2450 2548 Zero-Turn Mower

What It Is

This is an aftermarket starter ignition switch (part #01588300 / 15883) with two keys, designed to replace the original switch on Ariens and Gravely zero-turn mowers. It controls the power to the starter and ignition system, allowing you to start and stop the engine.

Fitment & Compatibility

Before buying, confirm your mower is from one of these series: Ariens Zoom, Zoom ZT, Zoom XL, Mini-ZT, or HVZ; Gravely ZT, ZT XL, or HVZ models. Compatible deck sizes include 34", 42", 50", and specific model numbers like 1434, 1534, 1540, 1640, 1740, 1840, 1944, 2040, 2250, 2350, 2450, 2548. Measure your existing switch’s stem diameter (typically 3/4" or 1/2") and overall length to match. Check that your current switch has a 2- or 3-prong blade connector—this replacement uses the same. If your mower has a different connector type (e.g., round pins), it won’t fit without modification. Verify your OEM part number is 01588300 or 15883 to ensure direct swap.

Key Things to Know

• Build quality: At $14.99, this is a budget aftermarket part. Some users report the plastic housing feels slightly less durable than OEM, but it works reliably for most.
• Installation difficulty: Easy. Disconnect battery negative, unplug old switch, remove retaining nut, install new switch, reconnect. Takes 10-15 minutes with basic hand tools.
• Common gotcha: The included keys may be slightly loose in the switch—test fit before reassembling the dash. If they feel too loose, consider returning for a different batch.
• Warranty: No brand warranty mentioned; check seller’s return policy. If you need a guaranteed long-term part, OEM might be safer.

Should You Buy It

This is a solid budget pick if your OEM switch fails and you want a quick, functional replacement without spending $30+ on a genuine Ariens/Gravely part. It’s not built for heavy commercial use, but for homeowner or light-duty mowing, it’ll get you running reliably. If you need maximum durability or exact OEM feel, spend more on the original.