This high-performance alternator is engineered to provide reliable charging for Mustang Skid Steer Loaders and Yanmar industrial applications. Designed as a direct-fit replacement for the Hitachi LR135-91 series, it ensures your heavy machinery maintains consistent electrical output under the most demanding job site conditions.
RELIABILITY: 100% brand-new aftermarket component manufactured to meet or exceed original equipment (OE) specifications for cooling, amperage output, and durability.
Key Features
✔ Direct fit for Mustang 920-940 series
✔ High-temperature internal epoxy
✔ Heavy-duty internal regulator
✔ Precision balanced rotor assembly
Technical Specs
Voltage:
12V
Amperage:
35A
Rotation:
Clockwise (CW)
Regulator:
Internal
Fan:
External
Weight:
Approx. 4.42 kg (9.7 lbs)
Compatibility / Fitment Guide
Make / Model
Engine Type
Year Range
Mustang Skid Steer 920
Yanmar 3TN72 DSL
1989-1996
Mustang Skid Steer 930 / 930A
Yanmar 3TN82E DSL
1988-1996
Mustang Skid Steer 940
Yanmar 4TN82E DSL
1988-1996
Yanmar Industrial Engine
2T72HL Engine
1984-1992
OEM Cross Reference
Hitachi:
LR135-91, GD205578-A
Yanmar:
124080-77201, 124080-77200
Lester:
12288
J&N:
400-44064
WAI:
1-2314-01HI
Questions & Answers
Is this a genuine original part?
This is a premium quality 4Drive aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
We recommend checking your original part for the reference number 124080-77201 or LR135-91. If your machine is a Mustang 920, 930, or 940 with a Yanmar diesel engine, this is the correct direct replacement.
Does this unit include the pulley?
Yes, this alternator comes complete with a single-groove (V-belt) pulley already installed for quick out-of-the-box installation.
Note: Please verify your original part number against the references above at 4drive.co.uk before purchasing.
