John Deere Original Equipment V-Belt #M112006

What It Is

The John Deere Original Equipment V-Belt #M112006 is a drive belt designed to transfer power from the engine to the mower deck or transmission on select John Deere lawn tractors and zero-turn mowers. It’s a direct OEM replacement for worn or broken belts in residential and light-commercial cutting applications.

Fitment & Compatibility

Before buying, verify your machine’s model and deck size. The M112006 belt fits specific John Deere models, including the D100 series (D105, D110, D125, D130) and select LA series (LA115, LA125, LA135) with 42-inch or 48-inch decks. Check your owner’s manual or the existing belt part number—measure the belt length (approx. 1/2" x 96.5" for this part) to confirm. This is an OEM belt, so it’s not interchangeable with aftermarket belts unless explicitly listed as cross-compatible. Avoid assuming fit based on deck size alone; some models use different belt routing.

Key Things to Know

• Quality: OEM John Deere belts are made with reinforced rubber and aramid cord for better durability than generic belts—expect 2-3 seasons under normal use.
• Installation difficulty: Moderate. Requires removing the mower deck and routing the belt around pulleys and idlers. A deck removal tool or jack helps. Plan 30–60 minutes.
• Common gotchas: Belt tension is critical—too loose causes slipping, too tight wears pulleys. Check the belt routing diagram (often under the deck or in the manual) to avoid incorrect installation. Also, inspect pulleys for wear before replacing; a worn pulley can shred a new belt quickly.

Should You Buy It

If you own a compatible John Deere lawn tractor or zero-turn and want a reliable, long-lasting belt without fitment guesswork, this OEM part is a solid choice. It’s worth the premium over cheaper aftermarket belts for consistent performance and less downtime. Skip it only if you’re on a tight budget and can confirm a cross-compatible aftermarket belt fits your exact model.