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- 8L90 Transmission Fluid Thermal Bypass Valve ...
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Item #:
134568120
8L90 Transmission Fluid Thermal Bypass Valve compatible with Chevy/GMC 1500 15-18
Item #:
134568120
XAF 63511
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Imported from USA store
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Order now and get it around Tuesday, August 25
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Upgrade your transmission with the Transmission Fluid Thermal Bypass Valve for better fluid flow and enhanced cooling performance.
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What Stands Out
Compatibility
Designed specifically for Chevy/GMC 1500 models from 2015 to 2018, ensuring a perfect fit and seamless integration for optimal performance.
Thermal Regulation
Enhances transmission efficiency by regulating fluid temperature, preventing overheating, and prolonging the lifespan of your vehicle's transmission system.
Durable Construction
Built with high-quality materials to resist wear and tear, ensuring reliable performance and longevity, making it a smart investment for vehicle maintenance.
Product Details
| Exterior Finish | Brushed |
| Inlet Connection Type | Threaded |
| Number of Ports | 2 |
| Thread Type | NPT |
| Thread Size | 1/2"NPT (30.5 cm) |
| Valve Type | thermostatic valve |
| Material Type | Aluminum |
| Brand Name | Achilioson |
| Model Number | 8L90 |
| Manufacturer | Achilioson |
| Manufacturer Part Number | 8L90 |
| Unit Count | 1.0 Count |
| Included Components | Transmission Fluid Thermal Bypass Valve |
| Material | Aluminum |
| Brand | Achilioson |
| Number of Packs | 1 |
| Number of Items | 1 |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Chevy/GMC Owners
Ideal for 2015-2018 Chevy and GMC 1500 truck owners who need replacement thermal bypass valves.
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Performance Enthusiasts
Perfect for users looking to enhance their transmission cooling efficiency for better performance during heavy towing.
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DIY Mechanics
Great for home mechanics who prefer to install their transmission components without relying on professional services.
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Older Vehicle Models
Not suitable for vehicles outside of the 2015-2018 Chevy/GMC 1500 range, as it won't fit properly.
Product Description
8L90 Transmission Fluid Thermal Bypass Valve compatible with Chevy/GMC 1500 15-18
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is this valve compatible with my vehicle?
Answer: Yes, it is compatible with 2015-2018 Silverado/Sierra 1500 models that have an 8L90 transmission. -
Question:
How does this valve improve transmission performance?
Answer: It eliminates the restrictive factory valve for better fluid flow and maintains cooler transmission temperatures. -
Question:
What material is the bypass valve made from?
Answer: It is made from tough billet aluminum, ensuring durability and resistance to mechanical failures.
Achilioson Hard Parts 8L90 Editorial Review
**** The 8L90 Transmission Fluid Thermal Bypass Valve compatible with Chevy/GMC 1500 from 2015 to 2018 demonstrates a generally positive reception among user reviews, particularly noted for its effectiveness in reducing transmission temperatures under challenging driving conditions. Owners reported significant improvements in temperature regulation, with one user observing a drop from 210°F to a steady 180°F even in extreme heat conditions. This upgrade seems to perform well during a mix of stop-and-go city driving and heavy highway traffic. Installation is relatively straightforward for most users, although several highlighted that it’s not an entirely "plug and play" replacement. Some users recommended an installation method that involves pre-loading the oil lines before mounting the unit, as improper fitting can lead to leaks and complications with the O-ring seals. It is important to note that new O-rings are not included in the kit, which can be a point of contention for some installers. Quality is a recurring theme, with many users recognizing the solid aluminum Construction and noting that it matches OEM specifications well. While several users experienced leaks initially, they managed to resolve these issues with careful installation practices. Performance beyond temperature management has also been highlighted; shifts appear to become smoother, which contributes to a better overall driving experience. However, not all feedback has been positive. Some users encountered fitting issues, which suggests that compatibility may not be universal for all configurations of the 8L90 transmission, particularly with certain models like the 2015 Silverado. In summary, the 8L90 Thermal Bypass Valve is praised for its cooling capabilities and quality build, but careful installation and attention to compatibility are essential factors for potential buyers to Consider. **
Customer Reviews & Ratings
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Pros
- Significant reduction in transmission temperatures.
- Improved shifting feel post-installation.
- Quality aluminum Construction matching OEM specifications.
- Generally straightforward installation for those familiar with transmission work.
Cons
- New O-rings not included in the kit.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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XAF 63511
Order now and get it around Tuesday, August 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Compatible with 2015-2018 Silverado/Sierra 1500 with 8L90 transmission.
- Improves fluid flow for better cooling during heavy towing or traffic.
- Reduces overheating risks and prolongs transmission life.
- Constructed from durable billet aluminum to resist mechanical failures.
- Features Neodymium magnet for superior debris protection.
- Outperforms the stock valve for peace of mind while driving.
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