2PCS 045898 Ignition Switch Key 48609 103-2106 Compatible with Hustler Big Dog Mower Compatible with John Deere Exmark Mower Compatible with Toro TimeCutter Zero Turn

What It Is

This is a replacement ignition switch key set (2 keys) designed for zero-turn mowers from Hustler, Big Dog, John Deere, Exmark, and Toro. It replaces OEM part numbers 045898, 48609, and 103-2106, allowing you to start the engine and operate the electrical system.

Fitment & Compatibility

Before buying, cross-reference your mower’s model number with the OEM part numbers listed (045898, 48609, 103-2106). This key fits many Hustler and Big Dog models, plus specific John Deere, Exmark, and Toro TimeCutter zero-turn mowers. Check that your existing ignition switch accepts a flat-blade (not round or square) key profile. Measure the key’s blade width (typically ~7mm) and overall length (usually ~50mm) to match your current key. Do not rely on brand name alone—some Toro models use a different key design. Verify your mower’s ignition switch is a standard 3-position (Off/On/Start) type.

Key Things to Know

• Quality: These are aftermarket keys, not OEM. They work fine for starting, but the plastic head may be less durable than factory keys over years of use.
• Installation: No tools needed—just remove the old key and insert the new one. No wiring or switch replacement required.
• Common gotcha: If your mower has a unique security key (e.g., with a built-in chip or unusual shape), this will not fit. This is a simple mechanical key only.
• Spare set: You get two keys, which is useful for backup or sharing with a second operator.

Should You Buy It

Buy this if you need a low-cost spare or replacement key for a zero-turn mower that uses the 045898/48609/103-2106 pattern and you’re comfortable with aftermarket quality. It’s a solid value for the price, but if you require an exact OEM match or have a mower with a proprietary key, stick with the manufacturer’s part.