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139-0684 PUMP-FUEL (4DW)
$34.99
139-0684 PUMP-FUEL (4DW)
$34.99
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- TORO BRAND
- 131-5399 GEAR-PINION, 15T (4DS)
Description
131-5399 – Toro Pinion Gear, 15 Tooth (Genuine Toro OEM Part)
The Toro 131-5399 is a genuine OEM 15-tooth pinion gear, engineered to transmit torque and rotational motion within the drive or transmission system of compatible Toro lawn and turf equipment. This precision gear ensures smooth engagement with mating gears, supporting reliable power transfer and consistent machine operation.
Manufactured to Toro original equipment specifications, the pinion gear is precision-machined with accurate tooth geometry and produced from hardened, wear-resistant material to withstand continuous load and vibration. Using a genuine Toro pinion gear ensures correct fitment, factory-approved tolerances, and long service life.
Product Details
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Manufacturer Part Number: 131-5399
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Brand: Toro
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Part Type: Pinion Gear
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Tooth Count: 15 Teeth
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Category Code: 4DS
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System: Drive / transmission system
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Function: Transfers rotational motion and torque
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Material: Hardened, precision-machined steel
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OEM Status: Genuine Toro OEM replacement
Function
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Transmits torque between mating gears
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Maintains proper gear mesh and alignment
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Supports smooth, efficient drivetrain operation
Compatible With Toro Equipment
The Toro 131-5399 Pinion Gear (15T) is used on select Toro lawn and turf equipment, commonly found in:
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Drive and transmission assemblies
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Gear reduction systems
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Mechanical power transfer components
(Exact compatibility depends on the specific Toro model and drivetrain configuration.)
How It’s Used
This pinion gear installs onto a drive shaft within the transmission or gear assembly, where it meshes with a corresponding gear to transfer motion. Proper alignment and lubrication are essential to ensure quiet operation and prevent premature wear.
Correct installation restores original drivetrain performance.
Suggested Maintenance
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Inspect gears during drivetrain service for wear or damaged teeth
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Ensure proper lubrication of the gear assembly
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Replace the pinion gear if excessive noise, slippage, or tooth wear is present
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Check mating gears for wear when replacing this component
The Toro 131-5399 Pinion Gear, 15 Tooth is used in OEM-specified Toro drive systems where precision gear engagement, durability, and reliable power transmission are essential.
