John Deere Original Equipment Gauge - AM143246

What It Is

The John Deere Original Equipment Gauge (AM143246) is a replacement fuel gauge for select John Deere lawn tractors and zero-turn mowers. It displays fuel level in the tank and is designed for OEM-spec replacement, not aftermarket universal fit.

Fitment & Compatibility

• Check your model: Fits John Deere X300, X304, X320, X324, X340, X360, X380, X384, X394, X485, X495, X595, and some D100/D110 series (verify with serial number).
• Verify part number: Confirm your old gauge has AM143246 stamped on it, or cross-reference your model’s parts diagram.
• Measurements: Gauge diameter is 2-1/8" (mounting hole). Ensure tank opening matches; some older models may require a separate gasket (not included).
• OEM vs aftermarket: This is genuine John Deere, not a third-party copy. It will match electrical connectors and fuel sender resistance exactly.
• Electrical check: Works with 12V systems. If your gauge reads empty when tank is full, the sender unit (not this gauge) may be faulty.

Key Things to Know

• Quality: OEM part – better plastic and seal longevity than generic replacements. No calibration needed.
• Installation difficulty: Easy (20–30 minutes). Disconnect battery, remove old gauge from dash, unplug wiring, snap in new one. No special tools.
• Common gotcha: The gauge may arrive with a protective film over the lens – remove it before installation.
• Warranty: John Deere 1-year limited warranty. Keep your receipt.

Should You Buy It

Buy this if you have a compatible John Deere model and need a direct, drop-in replacement with no guesswork. It’s the right choice for owners who want OEM reliability and a perfect fit. If you have a non-Deere machine or want to save money, look for a universal gauge that matches your tank sender’s resistance range (typically 0–90 ohms for Deere).