SKU: 54518020863

Castrol Transynd 668 - 55 Gallon Drum

Sale price$1057.05 Regular price$1174.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Castrol Transynd 668 - 55 Gallon DrumDescription Castrol TranSynd 668 is a premium, full synthetic automatic transmission fluid specifically formulated for Allison Transmission heavy duty, on highway automatic transmissions. TranSynd 668 provides oxidative stability, anti wear performance, and friction durability. TES 668 specification differentiators include extended anti shudder durability and extended clutch friction durability. This fluid features an Allison TES 668 approval. The TES

Description

Castrol® TranSynd 668® is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission® heavy-duty, on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability. TES 668 specification differentiators include extended anti-shudder durability and extended clutch-friction durability. This fluid features an Allison TES 668 approval. The TES 668 specification is fully backwards compatible with both TES 295® and TES 468 applications.

Features & Benefits

  • Delivers improved gear protection.
  • Delivers extended anti-shudder durability.
  • Delivers extended clutch-friction durability.
  • Excellent corrosion and foaming resistance.
  • Excellent thermal and oxidative stability that helps to prevent deposits and oil thickening.
  • Excellent transmission cleanliness under all conditions permits extended oil-drain intervals and decreased servicing.
  • Excellent temperature reduction through reduced friction leads to longer oil and component life.
  • Outstanding cold-flow properties enables faster oil flow to all critical components particularly during cold starts.
  • Optimized frictional characteristics gives smoother gear changing at all ambient temperatures and load conditions.
  • Excellent shear stability properties help to retain full transmission performance over entire oil-drain interval.

Applications

Specifically formulated and approved for any automatic transmission specifying for Allison Transmission TES-668 or TES-295.

Specifications

Name Method Units TranSynd 668
Appearance Visual - Bright & Clear
Color Visual - Red
Density @ 15C, Relative ASTM D4052 g/ml 0.8508
Viscosity, Kinematic 100C ASTM D445 mm²/s 6.9
Viscosity, Kinematic 40C ASTM D445 mm²/s 33
Viscosity Index DIN ISO 2909 None 168
Viscosity, Brookfield @ -40C (75W) ASTM D2983 mPa.s (cP) <12,000
Flash Point, COC ASTM D92 °C >210
Pour Point ASTM D5950 °C -51


Additional shipping fees will apply to residential, limited access, deliveries outside the regular delivery network or locations requiring a lift gate to complete delivery.  

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 54518020863

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.6 ★★★★★
    Based on 1319 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    D
    Verified Purchase
    Dawn S.
    Port Orchard, US
    ★★★★★ 5
    OEM quality and perfect fit with no leaks
    Size: 1 Count
    This is the real deal for anyone wanting to stick with OEM parts for their Chrysler or Dodge vehicle. The filter arrived sealed and well-packaged, and installation was quick with no surprises. This fits my 2016 Chrysler 300 sedan. It fits perfectly and performs just like the one from the dealership but without the inflated price. There were no leaks, and oil pressure stayed consistent post-change. If you're doing your own oil changes, it’s worth sticking with a filter that’s built specifically for your engine - this one does the job right. Pros: True OEM fit and function Well-sealed and clean install Performs reliably Tip: Pre-fill the filter with oil before installation to reduce dry start wear and improve circulation right away.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 26, 2025
    S
    Verified Purchase
    Scruffy
    Charlottesville, US
    ★★★★★ 5
    Mopar Quality
    Size: 1 Count
    I regularly buy Mopar filters for my vehicles and have never had a problem with them. These are great filters at a good price and of course it is very convenient buying on Amazon.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 20, 2025
    H
    Verified Purchase
    Hal Weaver
    Grantham, US
    ★★★★★ 5
    The Genuine Deal
    Size: 1 Count
    OEM filter. Works exactly as it should. My application is for a 2016 Jeep Cherokee, 3.2L.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 31, 2025
    R
    Verified Purchase
    RS - Las Vegas, NV
    Bozeman, US
    ★★★★★ 5
    Great Fit, No Problems.
    Size: 1 Count
    Great Factory part that's easy to install and performs as one would expect. Have purchased this part many times for my wife's Jeep and never had any problems.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 30, 2026
    W
    Verified Purchase
    wayne
    Belleville, US
    ★★★★★ 5
    It is original part
    Size: 1 Count
    Amazon says this does not fit my town and country but it does. Have used it before so knew Amazon site was wrong
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 8, 2026

    recommand products