The published John Deere LT166 (M126009 drive belt) ride-on mower transmission drive belt size is 1/2" Wide x 86.39" O.D. The recorded OEM references are M126009.
Belt replacement guide
John Deere LT166 (M126009 drive belt) belt size & replacement chart
OEM references, belt positions and published dimensions for this ride-on mower.
Equipment: Ride-On MowerBelt applications: 1OEM references: 1Sizes listed: 1
Distinct belts1
OEM references1
Belt functions1
Published sizes1
Replacement lookup
John Deere LT166 (M126009 drive belt) belt chart
Match the belt function first, then confirm the OEM number and size.
| Belt application | OEM / replacement number | Published size | Listing SKU |
|---|---|---|---|
| Transmission / motion Transmission Drive Belt |
M126009 | 1/2" Wide x 86.39" O.D. | BEL7517 |
Application details
John Deere LT166 (M126009 drive belt) belt details
Transmission Drive Belt
Recorded OEM reference: M126009. Published size: 1/2" Wide x 86.39" O.D.
Important: Confirm the belt position, deck size, serial range and machine configuration before ordering. Belts with the same length can use different widths or profiles.
Common questions
John Deere LT166 (M126009 drive belt) belt FAQ
What belt does the John Deere LT166 (M126009 drive belt) use?
The listed belt application is Transmission Drive Belt. Recorded OEM reference: M126009.
What is the John Deere LT166 (M126009 drive belt) belt part number?
The recorded OEM reference is M126009. Match it to the correct belt position before ordering.
What size belt does the John Deere LT166 (M126009 drive belt) use?
Transmission Drive Belt: 1/2" Wide x 86.39" O.D.
Can I match the John Deere LT166 (M126009 drive belt) belt by length alone?
No. Width, profile, inside or outside circumference, belt position and OEM reference can all affect fitment. Match the belt function and OEM number first, then use the dimensions as a final check.
