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AMSOIL SAE 50 100% Synthetic Powershift Transmission Fluid

Product code : CTL05-EA

5 star rating

AMSOIL SAE 50 100% Synthetic Powershift Transmission Fluid

Product code : CTL05-EA

5 star rating
Current price:

$315.95

Retail Price
Estimated delivery by Mon, Jun 8 to Columbus - 43215.
  • Advanced Formulation for Powershift and Manual Transmissions, Wet Brakes and Final Drives

    • Helps eliminate clutch glazing and vibration
    • Protects against gear and bearing wear
    • Helps keep components clean
    • Guards against rust and corrosion
  • We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

  • We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

About this item

  • AMSOIL Synthetic Powershift Transmission Fluid is specifically designed for high-torque, heavy-duty powershift transmissions. Formulated for extended drain intervals, Powershift Transmission Fluid contains top-quality synthetic base oils and a high level of top-quality additives selected specifically for powershift transmissions. It offers exceptional transmission friction performance, smooth brake operation, gear and bearing wear protection and maximum equipment life.

    Helps Prevent Clutch Slippage
    AMSOIL Synthetic Powershift Transmission Fluid is compatible with common metallic and non-metallic friction materials. Its stable frictional characteristics help eliminate excessive brake noise and vibration. Its non-slip friction properties are designed to prevent clutch slippage, which can cause glazing or friction-surface deposits and material degradation. Powershift Transmission Fluid is formulated to deliver responsive yet smooth clutch engagements, excellent power transmission through clutches and synchronizers and superior hydraulic fluid performance.

    Excellent Wear Protection
    AMSOIL Synthetic Powershift Transmission Fluid meets the wear and frictional requirements of the Caterpillar* TO-4 specification and is formulated for superior shear stability. Its superior shear stability allows Powershift Transmission Fluid to stay in grade throughout its service life, providing long-term protection against equipment wear, even when equipment is frequently subjected to sustained high torque.

    Superior High- and Low-Temperature Performance
    In high temperatures, AMSOIL Synthetic Powershift Transmission Fluid effectively protects components from wear. Its superior oxidative and thermal stability inhibits the formation of varnish, deposits and sludge so equipment runs clean. Synthetic Powershift Transmission Fluid functions as a heat-transfer fluid and helps cool hot-running equipment. In low temperatures, Synthetic Powershift Transmission Fluid flows readily for dependable startup and post-startup protection.

    Copper Corrosion, Rust and Foam Inhibition
    AMSOIL Synthetic Powershift Transmission Fluid protects equipment from copper corrosion and rust, even during equipment storage. It does not foam in service, protecting equipment from metal-to-metal contact and wear.

    • Helps eliminate clutch glazing and vibration
    • Protects against gear and bearing wear
    • Helps keep components clean
    • Guards against rust and corrosion

    Performance Data
    AMSOIL SAE 50 (CTL) Synthetic Powershift Transmission Fluid is recommended for applications requiring the following specifications:

    • Caterpillar* TO-4
    • Komatsu* KES 07.868.1
    • Rockwell*/Eaton*/Fuller* CD-50

    Applications

    • Dozers
    • Heavy-duty manual transmission
    • Wheel loaders and crawlers
    • Backhoe loaders
    • Cranes
    • Off-road fork trucks
    • Harbor-handling equipment
    • Railway equipment
    • Mining equipment
    • Road graders
    • Commercial marine applications

    AMSOIL Synthetic 10W, 30 and 50 Powershift Transmission Fluids can be used in Caterpillar, Allison, Komatsu, Clark*, Hurth*, Borg-Warner*, Twin Disc*, Voith*, ZF, Funk* and Brockhouse* powershift-type transmissions and Eaton/Rockwell/Fuller transmissions.

    IINSTALLATION
    AMSOIL Synthetic Powershift Transmission Fluid is fully compatible with other TO-4 fluids used in powershift applications. To install AMSOIL Synthetic Powershift Transmission Fluid, drain the fluid in the system, replace the filter (if equipped) and install the appropriate viscosity of Powershift Transmission Fluid.

    SERVICE LIFE
    AMSOIL Synthetic Powershift Transmission Fluid provides extended service life beyond conventional petroleum fluids if Synthetic Powershift Transmission Fluid is kept free of dirt and moisture. Oil analysis is recommended if extending service intervals beyond equipment manufacturer recommendations.

    AMSOIL Synthetic Powershift Transmission Fluid may be used up to 60,000 miles or one year (whichever comes first) in CD-50 manual transmission applications or as specified by the OEM.

    AMSOIL PRODUCT WARRANTY
    AMSOIL products are backed by a Limited Liability Warranty. For complete information, visit www.amsoil.com/warranty/.

    HEALTH & SAFETY
    This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available
    online at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children.

    *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

  • Data Bulletin

    Warranty

    SDS



  • 5 star rating
    • 5 star rating
      Synthetic Powershift Transmission Fluid
      By  AJ ,  a  Verified Buyer  from  Jackson hole  on  January 29, 2026
      I have been using this product in the rear end of my 1971 Flextrack Nodwell snow cat for over ten years. It performs well with wet brakes and keeps the gear box well protected and cool.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Best transmission in oil by far.
      By  JOHN,  a  Verified Buyer  from  Marlboro nj   on  June 23, 2025
      I use this in all of our manual transmissions and so far I like what see smoother shifts. The guys are very hard on the trucks so I want the best in them.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      https://www.amsoil.com/p/synthetic-powershift-transmission-f
      By  Gary,  a  Verified Buyer  from  Ky  on  August 31, 2023
      Use in tractor manual transmission and is awesome. Use also in Case 450 dozer hydraulic transmission and unit has strong pushing torque all day and every day
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Never disappoints
      By  DAVID,  a  Verified Buyer  from  Akron, OH  on  June 12, 2022
      Was doing a clutch on a Eaton 13 speed and decided to replace the oil not knowing the status of the oil that was in the transmission. Oil looked fine but replaced anyway and so glad I did because it actually shifts so much smoother now. I love amsoil products and they will never let you down!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
  • Advanced Formulation for Powershift and Manual Transmissions, Wet Brakes and Final Drives

    • Helps eliminate clutch glazing and vibration
    • Protects against gear and bearing wear
    • Helps keep components clean
    • Guards against rust and corrosion
  • We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.

  • We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

  • AMSOIL Synthetic Powershift Transmission Fluid is specifically designed for high-torque, heavy-duty powershift transmissions. Formulated for extended drain intervals, Powershift Transmission Fluid contains top-quality synthetic base oils and a high level of top-quality additives selected specifically for powershift transmissions. It offers exceptional transmission friction performance, smooth brake operation, gear and bearing wear protection and maximum equipment life.

    Helps Prevent Clutch Slippage
    AMSOIL Synthetic Powershift Transmission Fluid is compatible with common metallic and non-metallic friction materials. Its stable frictional characteristics help eliminate excessive brake noise and vibration. Its non-slip friction properties are designed to prevent clutch slippage, which can cause glazing or friction-surface deposits and material degradation. Powershift Transmission Fluid is formulated to deliver responsive yet smooth clutch engagements, excellent power transmission through clutches and synchronizers and superior hydraulic fluid performance.

    Excellent Wear Protection
    AMSOIL Synthetic Powershift Transmission Fluid meets the wear and frictional requirements of the Caterpillar* TO-4 specification and is formulated for superior shear stability. Its superior shear stability allows Powershift Transmission Fluid to stay in grade throughout its service life, providing long-term protection against equipment wear, even when equipment is frequently subjected to sustained high torque.

    Superior High- and Low-Temperature Performance
    In high temperatures, AMSOIL Synthetic Powershift Transmission Fluid effectively protects components from wear. Its superior oxidative and thermal stability inhibits the formation of varnish, deposits and sludge so equipment runs clean. Synthetic Powershift Transmission Fluid functions as a heat-transfer fluid and helps cool hot-running equipment. In low temperatures, Synthetic Powershift Transmission Fluid flows readily for dependable startup and post-startup protection.

    Copper Corrosion, Rust and Foam Inhibition
    AMSOIL Synthetic Powershift Transmission Fluid protects equipment from copper corrosion and rust, even during equipment storage. It does not foam in service, protecting equipment from metal-to-metal contact and wear.

    • Helps eliminate clutch glazing and vibration
    • Protects against gear and bearing wear
    • Helps keep components clean
    • Guards against rust and corrosion

    Performance Data
    AMSOIL SAE 50 (CTL) Synthetic Powershift Transmission Fluid is recommended for applications requiring the following specifications:

    • Caterpillar* TO-4
    • Komatsu* KES 07.868.1
    • Rockwell*/Eaton*/Fuller* CD-50

    Applications

    • Dozers
    • Heavy-duty manual transmission
    • Wheel loaders and crawlers
    • Backhoe loaders
    • Cranes
    • Off-road fork trucks
    • Harbor-handling equipment
    • Railway equipment
    • Mining equipment
    • Road graders
    • Commercial marine applications

    AMSOIL Synthetic 10W, 30 and 50 Powershift Transmission Fluids can be used in Caterpillar, Allison, Komatsu, Clark*, Hurth*, Borg-Warner*, Twin Disc*, Voith*, ZF, Funk* and Brockhouse* powershift-type transmissions and Eaton/Rockwell/Fuller transmissions.

    IINSTALLATION
    AMSOIL Synthetic Powershift Transmission Fluid is fully compatible with other TO-4 fluids used in powershift applications. To install AMSOIL Synthetic Powershift Transmission Fluid, drain the fluid in the system, replace the filter (if equipped) and install the appropriate viscosity of Powershift Transmission Fluid.

    SERVICE LIFE
    AMSOIL Synthetic Powershift Transmission Fluid provides extended service life beyond conventional petroleum fluids if Synthetic Powershift Transmission Fluid is kept free of dirt and moisture. Oil analysis is recommended if extending service intervals beyond equipment manufacturer recommendations.

    AMSOIL Synthetic Powershift Transmission Fluid may be used up to 60,000 miles or one year (whichever comes first) in CD-50 manual transmission applications or as specified by the OEM.

    AMSOIL PRODUCT WARRANTY
    AMSOIL products are backed by a Limited Liability Warranty. For complete information, visit www.amsoil.com/warranty/.

    HEALTH & SAFETY
    This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available
    online at www.amsoil.com or upon request at (715) 392-7101. Keep Out of Reach of Children.

    *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

  • Data Bulletin

    Warranty

    SDS



  • 5 star rating
    • 5 star rating
      Synthetic Powershift Transmission Fluid
      By  AJ ,  a  Verified Buyer  from  Jackson hole  on  January 29, 2026
      I have been using this product in the rear end of my 1971 Flextrack Nodwell snow cat for over ten years. It performs well with wet brakes and keeps the gear box well protected and cool.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Best transmission in oil by far.
      By  JOHN,  a  Verified Buyer  from  Marlboro nj   on  June 23, 2025
      I use this in all of our manual transmissions and so far I like what see smoother shifts. The guys are very hard on the trucks so I want the best in them.
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      https://www.amsoil.com/p/synthetic-powershift-transmission-f
      By  Gary,  a  Verified Buyer  from  Ky  on  August 31, 2023
      Use in tractor manual transmission and is awesome. Use also in Case 450 dozer hydraulic transmission and unit has strong pushing torque all day and every day
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?
    • 5 star rating
      Never disappoints
      By  DAVID,  a  Verified Buyer  from  Akron, OH  on  June 12, 2022
      Was doing a clutch on a Eaton 13 speed and decided to replace the oil not knowing the status of the oil that was in the transmission. Oil looked fine but replaced anyway and so glad I did because it actually shifts so much smoother now. I love amsoil products and they will never let you down!
      Bottom Line
      Yes, I would recommend this to a friend.
      Was this review helpful?