LDCRE Lock-Up Torque Converter Solenoid for Subaru Lineartronic CVT TR580/TR690 — Black, 3.2–3.7Ω Direct-Fit

The LDCRE lock‑up (torque converter) solenoid is a direct-fit replacement solenoid for Subaru Lineartronic CVT TR580/TR690 transmissions that controls torque‑converter lock and AWD transfer clutch pressure, rated 3.2–3.7 ohms.

If your Subaru with a Lineartronic CVT shows transmission hesitation, unusual shift feel, or AWD transfer warnings, a faulty lock‑up/transfer solenoid is a common service item. This LDCRE replacement corresponds to OEM numbers 31825AA050, 31825AA051, 31825AA052 and related part variants, offering a direct plug‑in footprint for many Forester, Outback, Legacy, Impreza and Crosstrek models equipped with TR580 or TR690 valve bodies.

Which Subaru models will this solenoid fit?

This solenoid matches a wide range of Subaru vehicles that use the TR580 or TR690 Lineartronic CVT. Check the OE part number stamped on your original solenoid against the listed replacements to confirm fitment before ordering.

• Common fits: Legacy, Forester, Outback, Impreza, Crosstrek across model years noted for TR580/TR690.
• OEM references included: 31825AA050/051/052 and 31706AA030–033 series.
• Intended for CVT valve body installations in AWD Subaru applications.

How does this solenoid affect driveability and AWD function?

The lock‑up/transfer solenoid modulates hydraulic pressure that engages the torque converter lock or transfers torque to the AWD clutch. When the solenoid is out of spec, you may notice delayed lock‑up, slipping sensations, or diagnostic trouble codes related to transmission pressure or AWD clutch control.

• Restores correct pressure control for smoother lock‑up engagement.
• Helps reduce slippage and improves shift consistency when working properly.
• Works with the TR580/TR690 valve body to manage AWD clutch engagement timing.

What electrical and physical specs should I check before buying?

This LDCRE unit is specified at approximately 3.2–3.7 ohms coil resistance and designed to match OEM plug, port, and mounting dimensions for a straightforward swap. Prior to purchase, compare electrical resistance and connector style or consult your vehicle’s service manual to confirm match.

• Coil resistance: ~3.2–3.7 ohms (measured cold).
• Connector: OEM‑style plug compatible with TR580/TR690 valve body harnesses.
• Physical: direct replacement form factor for quick installation.

What’s included and any installation notes?

Each package contains one LDCRE AWD/lock‑up solenoid ready for installation. Installation typically requires removal of the transmission valve body—procedures that should be performed by a qualified technician or an experienced DIYer with proper tools and a clean workspace.

• Package: 1 x AWD/lock‑up solenoid as pictured.
• Recommendation: verify part number and inspect valve body o‑rings and filters during service.
• Tip: follow OEM torque specs and fluid fill/bleed procedures after valve body reassembly.

Who this is for: This replacement LDCRE lock‑up/transfer solenoid is suited for Subaru owners and independent mechanics who need an OEM‑style solenoid for TR580/TR690 Lineartronic CVT transmissions. Ideal when troubleshooting transmission pressure codes, lock‑up engagement issues, or AWD transfer clutch irregularities—provided you confirm part number compatibility and follow proper valve body service procedures.

• Replacement Number: TR580 TR690 31825AA050 31825AA051 31825AA052 31706AA030–033.
• Fit Vehicles: Select Subaru Crosstrek, Forester, Legacy, Outback, Impreza with TR580/TR690 CVT.
• Package Included: 1 × AWD/lock‑up solenoid.
• Notice: Verify OEM part number before purchase for proper fitment.