GY21106 PTO Control Cable for John Deere L100, L110, L111, L118, LA105, LA110, LA115 Riding Mower Tractor with 42'' Deck, Replaces John Deere PTO Cable GY21106, GY20156

What It Is

This is a replacement PTO (power take-off) control cable for John Deere L100, L110, L111, L118, LA105, LA110, and LA115 riding mowers with a 42-inch deck. It engages and disengages the mower blades via the PTO lever on the dash.

Fitment & Compatibility

• Models: John Deere L100, L110, L111, L118, LA105, LA110, LA115 (42" deck only). Not for other deck sizes or models.
• OEM Replacements: Replaces John Deere part numbers GY21106 and GY20156. Verify your original cable’s part number before ordering.
• Measurements: Cable length is approximately 48 inches overall, with a 5-inch sheath and a 1-inch eyelet at each end. Measure your old cable end-to-end to confirm.
• Deck Size: Works only with 42-inch deck models. Check your mower’s deck size (stamped on deck or in manual) before purchasing.

Key Things to Know

• Quality: Aftermarket cable, not OEM. Some users report slightly thinner housing or less smooth operation than original, but most find it functional for the price.
• Installation: Moderate difficulty. Requires removing the old cable from the PTO lever and blade engagement arm, then routing the new cable through existing clips. No special tools needed, but patience helps.
• Common Gotchas: The cable may be stiff out of the box; cycle it several times before final installation to loosen it. Ensure the cable is not kinked during routing—kinks can cause premature failure or sticky operation.
• Adjustment: You may need to adjust the cable length at the blade engagement arm using the threaded adjuster. Leave a slight slack (1/8–1/4 inch) when the PTO is disengaged to avoid constant tension.

Should You Buy It

If you need a budget-friendly replacement for a worn or broken PTO cable on a 42-inch deck John Deere L or LA series, this cable works well for the price. It’s a solid choice for DIY repairs where OEM cost is a concern, but expect slightly less refinement than the factory part. Not recommended if you want a drop-in, no-adjustment solution or need a cable for a different deck size.