Tuff Torq K46 Oil Type & Capacity [August 2024] ❤️

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Tuff Torq K46 Oil Type: Maintaining your Tuff Torq K46 transaxle requires knowing the correct oil type, capacity, filter, and change costs to ensure peak performance and longevity.

Commonly used in various lawn tractors, the K46 performs best with 5W-50 synthetic oil, which boosts its efficiency and durability.

In this guide, I’ll explore the Tuff Torq K46 oil specifications, oil capacity, the importance of regular oil changes, and associated costs. Let’s dive in to keep your equipment running smoothly!  

Tuff Torq K46 Oil Type

For Tuff Torq K46 transmissions, the recommended oil is Tuff Tech 5W-50 synthetic oil, part number 187Q0899000. This oil is specially formulated to provide the correct viscosity and essential additives for optimal performance in K46 transmissions.

Key Points for Using the Correct Oil:

  • Oil Type: Only use Tuff Tech 5W-50 synthetic oil, as it contains the necessary additives and viscosity for the K46 transmission.
  • Capacity: The K46 transmission requires approximately 2.3 or 1.9 liters of oil to refill when completely drained.
  • Oil Change Interval: Change the oil after the first 50 hours of operation, and then every 200 hours thereafter.
  • Oil Level: Maintain the oil level 20-25mm (3/4″ to 1″) below the fill port (black cap) when the transmission is at room temperature and level.

Using incorrect oil, such as conventional 10W-30 motor oil, is not recommended as it may not provide adequate protection and performance. Always use Tuff Tech 5W-50 synthetic oil to ensure proper lubrication and extend the life of your K46 transmission.

Tuff Torq K46 Oil Capacity

The Tuff Torq K46 hydrostatic transmission typically has an oil capacity of about 2.3 liters, although some models may require as little as 1.9 liters. The exact capacity can vary depending on the model and configuration.

For maintenance, use Tuff Torq’s recommended hydrostatic oil, specifically the Tuff Tech 187Q0899000 5W-50 synthetic oil, which is designed for all weather conditions. Regular oil changes are important: perform the first change after 50 hours of use, and then every 200 hours thereafter.

Tuff Torq K46 Oil Change 

To perform an oil change on the Tuff Torq K46 transaxle, follow these steps:

  1. Remove the Transaxle:
    • Detach the transaxle from the vehicle according to the manufacturer’s instructions.
  2. Drain the Old Oil:
    • Position the transaxle on a level surface.
    • Remove the fan and pulley to access the oil fill port (black cap).
    • Invert the transaxle to drain all the old oil completely through the fill port.
  3. Inspect and Clean:
    • Examine the drained oil for any debris or contaminants.
    • Clean around the fill port and inspect the magnet for metal shavings.
  4. Refill with New Oil:
    • Using the fill port, add approximately 2.2 liters of Tuff Tech 5W-50 synthetic oil if the transaxle is empty.
    • Ensure the oil level is about 20-25 mm (3/4” to 1”) below the fill port’s edge.
  5. Reassemble:
    • Reinstall the magnet and cap, then reattach the fan and pulley, following the reverse order of removal.
  6. Purge Air:
    • After reassembly, run the unit to remove any air from the transaxle.
    • Add more oil through the vent valve as needed until the recommended oil level is reached.

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FAQ – tuff torq k46

What is the grade of oil you employ? Tuff Torq?

10w30 oil
The first 10w30 oil when changing the oil or performing repair work to your unit. If you add to the original oil to bring it up to the correct level, consult this article or in the user’s manual to find the oil specifications of the factory.

What is the best way to add oil to a Tuff Torq Transmission?

Once you’ve placed your transaxle onto an unfinished bench, remove the pulley and fan, then remove the black cap. Then, remove the magnet (see Figure #1). The transaxle should be turned upside down to allow oil to drain out of the case via the port underneath the cap that is black. Fill up the transmission case oil via the same port at the top of the case.

How much oil does a Tuff Torq K46 take?

Tuff Torq suggests a certified Tuff Tech driving fluid for working on all of our transaxles. Use only the port for filling (covered by the cap in black) to fill the unit. It will take approximately 2.2 3 liters of oil in order to fill the unit when it is empty.

What is the fluid that goes into the Tuff Torq K46?

Tuff Torq recommends using only the certified Tuff Tech drive fluid to service all of our transaxles. Use only that fill port (covered by the black cap) to refill the unit. It will take approximately 2.2 3 liters of oil in order for a proper refill of the unit if it is completely empty.

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