Genuine Toyota & Lexus Transmission Lock-Up Control Solenoid – OEM # 35280-30050
Part Description:
This is a 100% Genuine Toyota / Lexus OEM Transmission Lock-Up Control Solenoid with factory part number 35280-30050. It is the exact electronic-hydraulic valve that controls the engagement of the torque converter clutch (TCC) inside the automatic transmission valve body. A faulty solenoid is the primary cause of torque converter shudder and related performance issues.
Fixes These Common Problems:
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Torque Converter Shudder: A rhythmic vibration or chattering felt during light acceleration at highway speeds (typically 40-70 mph).
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Check Engine Light (CEL) with diagnostic trouble codes P0741 (Torque Converter Clutch Circuit Performance/Stuck Off) or similar.
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Poor Fuel Economy and high RPM at cruise due to the torque converter failing to lock up.
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Harsh or erratic shifting related to TCC application.
Why Buy This Genuine OEM Part?
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Perfect Fit & Function: Guaranteed to match the original specifications for electrical resistance, flow rate, and durability.
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Eliminates Guesswork: Using anything other than this exact OEM solenoid can lead to persistent issues or transmission damage.
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Cost-Effective Repair: Replacing this single, often faulty solenoid can resolve the shudder and restore transmission performance, avoiding a costly valve body or transmission replacement.
Precise Vehicle Compatibility (Based on Official Toyota/Lexus EPC Data):
This solenoid is a component of the valve body assembly (EPC Section: 35-12) for the vehicles listed below. Fitment is highly specific to the production period and chassis code.
| Brand | Model | Chassis Code | Production Period (Approx.) |
|---|---|---|---|
| Lexus | IS250 / IS350 | GSE2* | Aug 2005 – Mar 2013 |
| IS Series | ASE30, GSE3*, USE30 | Apr 2013 – Present | |
| RC350 / RC300 / RC200t | ASC10, GSC1* | Sep 2014 – Present | |
| IS250C | GSE2* | Apr 2009 – Jun 2015 | |
| SC430 | UZZ40 | Jan 2001 – Jun 2010 | |
| GS Series | GRS19*, URS190, UZS190 | Jan 2005 – Nov 2011 | |
| GS Series | ARL10, GRL1*, GWL10 | Dec 2011 – Jun 2020 | |
| GX470 | UZJ120 | Nov 2002 – Jul 2009 | |
| LX470 | UZJ100 | Jan 1998 – Jul 2007 | |
| Toyota | 4Runner | GRN21, UZN21 | Aug 2002 – Jul 2009 |
| 4Runner | GRN28, TRN28 | Aug 2009 – Present | |
| Hilux | GGN15/25/35, KUN1*/2*/3*, etc. | Aug 2004 – Mar 2012 | |
| Hilux | ...(continued)... | Jul 2011 – Present | |
| Hilux | GGN1, GUN1, etc. | May 2015 – Present | |
| Tacoma | GRN2/3, TRN2** | Sep 2004 – Present | |
| FJ Cruiser | GSJ1* | Jan 2006 – Jun 2014 | |
| Land Cruiser | UZJ100 | Jan 1998 – Jul 2007 | |
| Tundra | GSK30, UCK3*/4*, etc. | Feb 1999 – Sep 2006 | |
| Tundra | GSK5, UCK5, etc. | Nov 2006 – Present | |
| Sequoia | UCK35/45 | Sep 2000 – Oct 2007 | |
| Sequoia | UCK6, UPK6, etc. | Nov 2007 – Present |
!!! VIN VERIFICATION IS MANDATORY – PLEASE READ !!!
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Final confirmation requires your VIN. Before ordering, provide your full 17-digit Vehicle Identification Number (VIN). This is the only way to be 100% certain this part matches your specific transmission build.
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Professional Installation Recommended. This solenoid is installed inside the transmission valve body. The job requires dropping the transmission pan and should be done by a qualified technician. Replacing the transmission fluid and filter at the same time is highly advised.
Package Includes:
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1 x Genuine Toyota/Lexus Lock-Up Control Solenoid, Part Number 35280-30050.
On Dec 19, 2025 at 11:01:59 PST, seller added the following information: