Genuine Subaru TH58A CVT Primary & Secondary Pulley Assembly 31012AA031 for XV Crosstrek Hybrid 2.0L
Genuine Subaru TH58A CVT Primary and Secondary Pulley Assembly
This is a brand-new Genuine Subaru primary and secondary pulley assembly for selected Subaru XV Crosstrek Hybrid and Crosstrek Hybrid models equipped with the TH58A / TH58ADD hybrid CVT transmission.
The assembly is supplied under Subaru OE part number 31012AA031. Subaru parts catalogs identify 31012AA035 as the later service replacement number for 31012AA031.
This component is designed for the hybrid-version Subaru Lineartronic CVT and should not be selected only by appearance or pulley dimensions.
Product Specifications
- Brand: Genuine Subaru
- Condition: Brand New
- Part Type: CVT Primary and Secondary Pulley Assembly
- Transmission Type: Hybrid Continuously Variable Transmission
- Transmission Model: TH58A / TH58ADD
- Primary OE Number: 31012AA031
- Superseded OE Number: 31012AA035
- Vehicle Type: Subaru XV / Crosstrek Hybrid
- Engine: 2.0L H4 Hybrid
- Fitment Type: Direct replacement when matched by OE number and transmission code
Vehicle Compatibility
Compatible with selected:
- 2014 Subaru XV Crosstrek Hybrid 2.0L
- 2015 Subaru XV Crosstrek Hybrid 2.0L
- 2016 Subaru Crosstrek Hybrid 2.0L
- Japanese-market Subaru XV Hybrid GPE models equipped with TH58A or TH58ADD CVT
Fitment may vary according to production date, chassis number and transmission identification code.
OE and Reference Numbers
- 31012AA031
- 31012-AA031
- 31012AA035
- 31012-AA035
Earlier or related catalog references may include:
- 31012AA030
- 31012AA033
- 31012AA034
These earlier reference numbers should not be treated as universally interchangeable without checking the vehicle chassis number and transmission code.
Important Fitment Notice
Before ordering, please verify all of the following:
- The OE number on the original pulley assembly.
- The complete transmission code on the transmission identification plate.
- The vehicle chassis number or 17-digit VIN.
- The vehicle is equipped with the hybrid TH58A / TH58ADD CVT.
Please do not purchase this assembly solely because the transmission is described as a Subaru TR580-type CVT. Hybrid and non-hybrid versions may use different pulley assemblies, hydraulic components and internal calibration.
Package Contents
- 1 × Genuine Subaru Primary and Secondary Pulley Assembly
Only the components shown in the actual product photographs are included. CVT chain, seals, bearings, fluid and installation hardware are not included unless specifically shown or stated.
Installation Recommendation
Professional installation by a qualified automatic transmission technician is strongly recommended.
The technician should inspect:
- CVT chain condition
- Pulley contact surfaces
- Oil pump and pressure regulation
- Valve body condition
- Transmission fluid contamination
- Bearings and internal seals
A damaged CVT chain, insufficient hydraulic pressure or metallic contamination may damage the replacement pulley assembly.