Description
Product Overview
The TR690 Transmission Valve Body (model 31825AA052) is a direct‑fit replacement for Subaru Legacy and Outback CVT systems built between 2010 and 2013. Crafted from high‑grade metal and finished with a precision‑machined exterior, this valve body delivers consistent hydraulic flow to the transmission’s clutch packs and torque converter. It includes a 12 mm threaded inlet connection, a matching threaded outlet, and three internal ports that regulate pressure and fluid routing. Weighing 12.53 lb and packaged in a compact 15.01 × 11.93 × 7.48 in box, it meets OEM specifications for the part numbers TR690, 31825‑AA052, and compatible references such as 31706AA030, 31706AA033, and 31706AA034.
Usage
Designed for Subaru Legacy and Outback models equipped with a 2.5 L CVT, this valve body is installed during transmission rebuilds, overhauls, or when replacing a faulty OEM unit. It is suitable for professional mechanics and experienced DIYers who require a reliable, leak‑free component that restores smooth shifting and optimal fuel efficiency. Ensure the vehicle’s VIN, year, make, and model match the compatibility list before purchase.

Why Choose Us
Our coolautocore valve bodies are manufactured under strict quality controls, guaranteeing dimensional accuracy and surface integrity. Each unit undergoes rigorous testing for pressure tolerance and leak resistance, providing confidence that the part will perform like the original equipment. We also offer responsive customer service to assist with fitment questions, and our products are stocked in climate‑controlled warehouses to prevent contamination.
Key Features
- Durable metal construction with precision machined finish for long‑term reliability
- 12 mm threaded inlet and outlet ensure a secure, leak‑free connection
- Three‑port design optimizes hydraulic flow for smooth CVT operation
- Exact OEM match for part numbers TR690, 31825‑AA052 and related references
- Compatible with Subaru Legacy and Outback 2.5 L CVT models (2010‑2013)
FAQ
Is this valve body a direct replacement for the OEM part?
Yes, the TR690 valve body matches the OEM specifications for Subaru Legacy and Outback CVT models from 2010 to 2013, including part numbers TR690, 31825‑AA052, and related references.
What tools are required for installation?
Standard transmission repair tools are sufficient: a torque wrench, socket set, and a clean work area. Follow the service manual for proper torque values on the threaded connections.
Can I use this part on a Subaru model outside the 2010‑2013 range?
We recommend verifying compatibility using the vehicle VIN, year, make, and model. Using the part on unsupported models may lead to improper fit or performance issues.
Does the valve body come pre‑lubricated?
Yes, it is shipped with a light coating of transmission‑grade lubricant to protect internal surfaces during handling. Additional fluid should be added during installation as per the vehicle’s service guide.
What is the warranty on this product?
coolautocore provides a 12‑month limited warranty covering defects in materials and workmanship. Contact our support team with your purchase details for assistance.





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