Castrol TranSynd 668 Full Synthetic Automatic Transmission Fluid, 1 Gallon, Case of 3
- Brand:
- Castrol
- Model Number:
- 15E2E1
- UPC:
- 079191219171
- EAN:
- 0079191219171
- ASIN:
- B0F1DKXF3T
- Walmart SKU:
- 126658204
Key Takeaway
Price stability at $126.09 over two weeks indicates equilibrium, with current pricing closely tracking the 90-day average of $126.09.
Third-Party Seller Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$149.03 | |
|
Lowest Price
|
$125.95 | |
|
Most Recent Price
|
$148.95 |
- Average Price
- $130.35
- First Tracked
- Last Update
Walmart.com Summary
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$129.99 | |
|
Lowest Price
|
$107.06 | |
|
Most Recent Price
|
$126.09 |
- Average Price
- $126.25
- First Tracked
- Last Update
Price Analysis
Tracking History: We have tracked Castrol TranSynd 668 Full Synthetic Automatic Transmission Fluid, 1 Gallon, Case of 3 since 7/17/2025. The most recent price update was on Nov 13, 2026.
Price Range: Over the past 90 days, the price has ranged from $107.06 (lowest on 3/29/2026) to $129.99 (highest on 8/12/2025). The average price during this period is $126.25.
Current Trend: Walmart.com prices have ranged from $126.09 (Nov 13) to $126.09 (Nov 13) over the past 90 days. Current price is close to the 90-day average of $126.09.
Customer Insights: Rated 4.6/5 from 59 reviews.
Customer Reviews
59 reviewsCustomer Reviews
4.6
Based on 59 reviews
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Showing 10 of 59 reviews
Smooth Shifting
My fluid in my Allison transmission was supposedly changed when I got it. I seemed to not shift as good as others I have driven so I was recommended the transynd fluid online, so I figured I'd give it a shot. I changed it along with the recommended filter and I haven't noticed any issues and it has been shifting great.
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Works great in an Allison Transmission. I wasn't having any problems, but used it for preventative maintenance, and my transmission now shifts way smoother when towing my **** pound trailer.
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Perfect OEM fluid
This is the OEM transmission fluid for the Allison transmission in my duramax. My truck is 20 years old with over 170K miles and I only use this fluid.
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Arrived quickly!
Fluid is red, smells fantastic, and we will see if it last. It's going in a race transmission so time will tell. Can't be the price at Walmart.com at all!
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perfect for Allison Transmission
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Recommend for my GMC Allison transmission. Great packaging and very good price.
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Transynd
Best trans fluid you can buy, highly recommended!
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hard to find product walmart had it at a good price and shipped quick
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It arrived late and was the incorrect product. Now I have to wait for you receive and process your mistake before you will ship out the correct product.
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Good Value
Best price I could find. Arrived quickly
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Price History
Recent Price Changes
Detailed price history for the past 90 days
Walmart.com Pricing
18 recordsWalmart.com prices have ranged from $126.09 (Nov 13) to $126.09 (Nov 13) over the past 90 days. Current price is close to the 90-day average of $126.09.
| Date | Price | Change | % Change |
|---|---|---|---|
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | $+0.00 | +0.0% | |
| $126.09 | — | — |
Third-Party Seller Pricing
4 recordsThird-Party Sellers prices have ranged from $148.95 (Nov 12) to $149.03 (Nov 7) over the past 90 days. Current price is close to the 90-day average of $148.99.
| Date | Price | Change | % Change |
|---|---|---|---|
| $148.95 | $+0.00 | +0.0% | |
| $148.95 | $-0.08 | -0.1% | |
| $149.03 | $+0.00 | +0.0% | |
| $149.03 | — | — |
