Remanufactured TR580 CVT Valve Body With Solenoids 31825AA050 31825AA051 31825AA052 31825AA053 For Subaru Lineartronic CVT Shudder Repair Replacement

• Product Overview

This remanufactured TR580 Lineartronic CVT valve body is optimized to resolve the most common Subaru TR580 CVT hydraulic faults, including low line pressure, solenoid drift, judder / shudder during acceleration and pressure codes P2721 P0974 P0977. Every unit goes through full disassembly, deep cleaning, bore inspection, spool lapping and solenoid replacement. We upgrade the internal sealing components to high temperature FKM material to improve resistance to CVT fluid aging. This unit is pre-calibrated on hydraulic bench, ready for direct replacement for repair shops focusing on Subaru CVT repair business. It is a cost-effective alternative to expensive brand new OE valve body.

• Fitment & Parameter Table

  
  

  Item	Specification
  Transmission Model	TR580 Lineartronic CVT
  OE Interchange Part Number	31825AA050, 31825AA051, 31825AA052, 31825AA053
  Gross Weight	6.8 KG
  Package Dimension	32cm × 26cm × 22cm
  Fit Vehicle List	Subaru Forester 2011–2016 1.6L / 2.5L; Impreza 2010–2016 1.6L / 2.0L; XV Crosstrek 2012–2014 1.6L / 2.0L; Outback 2009–2016 2.5L; Levorg 2014–2016 1.6L; Exiga 2012–2015 2.0L

• Inspection & Testing

Standard Our remanufacturing inspection standard for TR580 valve body focuses on hydraulic stability. After ultrasonic cleaning, technicians inspect valve bore for scoring, scuffing and wear. All spools are precision lapped to restore correct clearance. Every solenoid is tested for operating current, response speed and pressure output. After assembly, dynamic bench test runs multiple pressure cycles to simulate city driving and highway cruise conditions. We record all pressure curves and keep test files for each unit. Any unit with unstable pressure, slow solenoid response or internal leakage will be rejected and reworked.

• Core Competitive Advantages

Optimized sealing upgrade with FKM rubber to reduce high-temperature leakage, target solving CVT shudder complaints. Full hydraulic cycle test data saved for every unit, easy for your downstream repair shop to check and verify. All worn solenoids are replaced, not reused old solenoids, greatly cut rework rate on Subaru CVT repairs. Supports bulk wholesale and small trial order, flexible MOQ for new distributors. We can supply matching TR580 overhaul kits, filters and oil coolers as supporting parts. Detailed fault diagnosis guide and installation notes are provided for free to your repair team. Neutral packing without factory logo for your resale business.

• Professional Installation Guidance

Before fitting this TR580 valve body, confirm the root cause of failure. If the CVT chain or pulley is damaged, replacing only valve body cannot fix the problem. Replace the CVT filter and gaskets, and fully flush the oil cooler to remove all metal particles. Check the wiring harness connector for water intrusion. After installation, use professional scanner to reset CVT adaptive values and perform relearn procedure. Avoid heavy load driving within the first 50km after rebuild. If you still experience shudder after installation, check oil quality and cooler flow first. Our engineers can help you analyze DTC codes and pressure logs remotely.

• Packaging & Transportation

Each valve body is protected by anti-rust oil film and custom foam cushion to prevent impact damage during transit. Desiccant packet is placed inside carton to prevent oxidation under humid marine environment. Outer carton is thick 5-layer export carton. We can print your own brand shipping marks on cartons for bulk orders. We support EXW, FOB and CIF quotation terms. All required export documents including test report can be provided to match your local customs requirement.

• Factory Strength Introduction

We specialize in CVT valve body remanufacturing for Subaru, Toyota and other Japanese CVT transmissions. Our workshop is equipped with dedicated hydraulic test benches for Lineartronic TR580 series. Our engineers have accumulated rich experience on Subaru TR580 common shudder and pressure issues. We maintain safety stock for TR580 valve bodies to support fast delivery for urgent repair orders. We cooperate with many transmission rebuild centers across Europe, North America and Oceania, and provide continuous after-sales and technical support for all wholesale partners.

• FAQ

Q4: Will the remanufactured TR580 valve body still suffer from the original factory common shudder defect after installation? What upgrades have you applied to solve this chronic issue?

A: The original shudder problem on Subaru TR580 CVT usually comes from valve bore wear, solenoid performance drift, internal leakage and aging sealing components. Our remanufactured units are upgraded to target these root causes. We lap worn valve spools and bores to restore precise clearance, replace all aging solenoids, and upgrade all internal rubber seals to high-temperature FKM fluororubber which resists CVT fluid degradation and high working temperature better than standard rubber. Every finished valve body goes through repeated pressure cycle tests to stabilize pressure output. However, we also remind your repair partners that if shudder comes from worn pulley or CVT chain, replacing only the valve body will not fully resolve the fault. We provide free diagnostic guidance to help your customers distinguish mechanical failure from hydraulic failure.

Q5: If we place mixed orders containing TR580 valve bodies, overhaul kits and CVT filters, will you consolidate all items in one shipment and mark SKUs clearly?

A: Yes, we support mixed wholesale orders combining TR580 valve bodies, matching overhaul kits, CVT filters and other Subaru CVT spare parts. We will consolidate all qualified goods into one shipment to save your international freight cost instead of sending separate parcels. Each different SKU will be separated by partition inside the carton, and every package will have clear labels printed with OE part number, product name, quantity and batch code. We will also attach a detailed packing list which lists every item, weight and dimension for your warehouse receiving check. If you need separate shipping for certain urgent items, just tell our sales team in advance. We can arrange split delivery accordingly and inform you of extra freight cost before confirmation. This flexible mixed order service helps you enrich your local CVT repair parts inventory conveniently.

Q6: What support can you provide for us if we want to launch private label sales of this remanufactured TR580 valve body in our local market?

A: We offer complete private label service for qualified B-end wholesale partners. First, we can supply neutral non-branded TR580 valve bodies without our factory logo by default. If you need custom packaging, we can print your brand logo, part number, barcode and product description on export cartons and inner foam boxes. Our design team can help adjust the packaging artwork, or you can send your finished design files directly to us. The MOQ for custom branded packaging is 300 sets per batch, and the lead time is around 15 working days after artwork confirmation. Besides packaging, we can also provide professional product photos, fault introduction copy and technical sheets for your local marketing and online store listing. We will keep your brand information confidential and will not use your private label materials for other clients.