Stens OEM Replacement Belt 265-238 Compatible with/Replacement for Ariens 834018, John Deere D140, D150, D160, L120, L130, L145, L155, LA130, LA140 and X140 07217400, GX20571, GX21833

What It Is

This is a replacement drive belt (Stens 265-238) for select Ariens and John Deere lawn tractors, designed to transfer power from the engine to the mower deck blades. It fits 42-inch and 48-inch cutting decks on models like the John Deere D140, D150, L120, L130, and X140.

Fitment & Compatibility

Before buying:

• Verify your machine’s model number (not just series) – e.g., D140 vs. D160 have different decks.
• Check your current belt’s length and width: the Stens 265-238 is 1/2" wide x 96.1" long (OEM equivalent to Ariens 834018, John Deere GX20571, GX21833).
• Confirm deck size: this belt fits 42" and 48" decks on listed models, but not all decks within a series (e.g., LA130 with 42" deck is fine; LA140 with 48" deck is fine; 54" decks use a different belt).
• Aftermarket replacement – match OEM part numbers exactly if your tractor has been modified.

Key Things to Know

• Quality: Stens is a reputable aftermarket brand; this belt is Kevlar-reinforced, comparable to OEM in durability.
• Installation difficulty: Moderate – requires releasing deck tension, routing around pulleys, and re-tensioning. A belt diagram is helpful (check your manual or online).
• Common gotcha: Some John Deere models (e.g., L120) may need the deck removed for access; others allow belt replacement from above.
• Check pulley condition: Worn or seized pulleys will quickly destroy a new belt. Inspect and replace if needed.

Should You Buy It

If you own a compatible Ariens or John Deere lawn tractor (42" or 48" deck) and need a reliable, cost-effective replacement for a worn or broken deck belt, yes. It’s a solid aftermarket option that matches OEM specs at a lower price. Avoid if you have a different deck size or an uncertified model.