John Deere OEM Mower Deck Roller 72 140 160 172 314 F 710 725 735 2210 4010 4110 4510 Front Mower AM39886

What It Is

This is a genuine John Deere OEM mower deck roller (AM39886) designed to support the deck’s weight, reduce scalping, and improve cut quality on front-mount mowers and select garden tractors with 48–72-inch decks.

Fitment & Compatibility

Check these before buying:

• Models confirmed fit: John Deere 72, 140, 160, 172, 314, F710, F725, F735, 2210, 4010, 4110, 4510 (front-mount mowers). Also fits some 300, 400, and 500 series tractors with compatible decks.
• Deck size: Works on 48”, 54”, 60”, and 72” decks where the roller mounts to the rear or side of the deck housing.
• OEM vs aftermarket: This is the genuine John Deere part (AM39886). Aftermarket versions are cheaper but may use softer plastic or bushings, leading to quicker wear.
• Measurements: Roller diameter is approximately 4 inches; spindle hole is 5/8 inch. Verify the mounting bracket spacing (center-to-center) matches your deck—typically 3.5–4 inches.

Pro tip: Remove one existing roller and measure the bolt pattern and roller width (about 1.5 inches) before ordering. Some decks use a different roller (AM39887) for the front positions.

Key Things to Know

• Quality: OEM construction uses durable nylon/polyethylene with a steel inner bushing. Lasts 2–3 seasons under normal residential use.
• Installation: Moderate difficulty—requires a socket wrench and possibly a pry bar to free seized bolts. Use anti-seize compound on the bolt threads to prevent future rust.
• Common gotcha: The roller may come without the mounting bolt or nut. Reuse your old hardware if it’s in good shape; otherwise, order a new bolt (John Deere part M101151) and lock nut.
• Wear indicator: If the roller has flat spots, cracks, or wobbles, replace it immediately to avoid scalping and uneven cut.

Should You Buy It

Buy this if you own one of the listed front-mower or tractor models and need a direct OEM replacement for a worn or damaged deck roller. It’s the right choice for durability and exact fit—skip it if you’re on a tight budget and okay with aftermarket alternatives that may wear faster.