Genuine Toro OEM 137-4823 FWD Transmission 4.5:1-1
Genuine Toro OEM 137-4823 FWD Transmission 4.5:1-2
Genuine Toro OEM 137-4823 FWD Transmission 4.5:1-3

Genuine Toro OEM 137-4823 FWD Transmission 4.5:1

Toro SKU: TOR-137-4823-X1-SHP Barcode: 763436146796

$76.08 $87.99 Save $11.91

In stock!
Compatibility Check

Model Fitment

Use the fitment details below to confirm compatibility before ordering.
Compatible Models 
MODEL: 20330 — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310008917
- 2010: 310008918 - 310999999
- 2011: 311000001 - 311999999

MODEL: 20330C — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999

MODEL: 20331 — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310006219
- 2010: 310006220 - 310999999
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999

MODEL: 20331C — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310999999
- 2011: 311000001 - 311999999

MODEL: 20339 — 22in Recycler Lawn Mower with SmartStow
- 2014: 314000001 - 314999999

MODEL: 20339C — 22in Recycler Lawn Mower with SmartStow
- 2014: 314000001 - 314999999

MODEL: 20350 — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310001316
- 2010: 310001317 - 310999999
- 2011: 311000001 - 311999999

MODEL: 20351 — 22in Recycler Lawn Mower
- 2009: 290000001 - 290999999
- 2010: 310000001 - 310002364
- 2010: 310002365 - 310999999
- 2011: 311000001 - 311999999

MODEL: 20353 — 22in Recycler Lawn Mower
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316003328
- 2016: 316003329 - 316999999
- 2017: 400000000 - 402099999
- 2018: 402100000 - 404399999
- 2019: 404400000 - 405670000
- 2020: 405670001 - 999999999

MODEL: 20355 — 22in Recycler Lawn Mower with SmartStow
- Early Model: 405600000 - 405999999
- 2018: 400000000 - 404329999
- 2019: 404330000 - 405599999
- 2020: 406000000 - 999999999

MODEL: 20357 — 22in Recycler Lawn Mower
- 2017: 400000000 - 402084999
- 2018: 402085000 - 404329999

MODEL: 20370 — 22in Recycler Lawn Mower
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999

MODEL: 20371 — 22in Recycler Lawn Mower
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999

MODEL: 20377 — 22in Recycler Lawn Mower
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999

MODEL: 20378 — 22in Recycler Lawn Mower
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314200000
- 2014: 314200001 - 314999999

MODEL: 20954 — 55cm Recycler Lawn Mower
- 2011: 311000001 - 311999999
- 2012: 312000001 - 312999999
- 2013: 313000001 - 313999999
- 2014: 314000001 - 314999999

MODEL: 20960 — 55cm Recycler Lawn Mower
- 2015: 315000001 - 315999999
- 2016: 316000001 - 316999999
- 2017: 400000000 - 402099999
- 2018: 402100000 - 999999999

MODEL: 20964 — 55cm Recycler Lawn Mower
- 2018: 400000000 - 999999999

MODEL: 20965 — 55cm Recycler Lawn Mower with SmartStow
- 2018: 400000000 - 999999999

MODEL: 21472 — 22in Recycler Lawn Mower
- 2021: 400000000 - 408899999
- 2021: 408900000 - 410239153
- 2021-2022: 410239154 - 411763999
- 2022: 411764000 - 412799999
- 2023: 412800000 - 415399999
- 2024-2025: 415400000 - 418272599
- 2025-2026: 418272600 - 999999999

MODEL: 21766 — 55cm Recycler Lawn Mower
- Early Model: 410000000 - 999999999
- 2019-2021: 400000000 - 409999999

MODEL: 21767 — 55cm Recycler Lawn Mower
- 2018-2019: 400000000 - 999999999

MODEL: 21768 — 55cm Recycler Lawn Mower with SmartStow
- 2018-2020: 400000000 - 999999999

MODEL: 21774 — 55cm Recycler Lawn Mower with SmartStow
- 2021: 400000000 - 410999999
- 2022: 411000000 - 412899999
- 2023: 412900000 - 417399999
- 2025: 417400000 - 418320716
- 2025: 418320717 - 419999999
- 2026: 420000000 - 999999999
Series Fits 
22in Recycler Lawn Mower
Years: 2009-2025-2026
Models: 20330, 20330C, 20331, 20331C, 20350, 20351, 20353, 20357, 20370, 20371, 20377, 20378, 21472

55cm Recycler Lawn Mower
Years: Early Model, 2011-2019-2021
Models: 20954, 20960, 20964, 21766, 21767

22in Recycler Lawn Mower with SmartStow
Years: Early Model, 2014, 2018, 2019, 2020
Models: 20339, 20339C, 20355

55cm Recycler Lawn Mower with SmartStow
Years: 2018, 2018-2020, 2021, 2022, 2023
Models: 20965, 21768, 21774

Recycler® S55AWST 55cm Lawn Mower with SmartStow®
Years: 2025, 2026
Models: 21774
Cross References 
Active Toro part number
137-4823, Parts

Cross-referenced Toro part numbers
115-1992, 121-9180
Cross-reference data is provided to help identify superseded or related part numbers.

Transmission

  • Genuine OEM Part
  • TRANSMISSION [FWD 4.5:1] built for reliable performance and lasting value.
  • OEM quality ensures consistent performance and precise compatibility with your equipment.
  • Durable construction built to withstand demanding operational conditions.
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