Toyota Issues Reminder About Converter Bolts

This reminder is provided by Toyota to provide information regarding the installation of the correct torque converter bolts during automatic transmission/transaxle assembly replacement. Incorrect torque converter bolts or missing washers can cause damage to the torque converter assembly.

Information courtesy of Mitchell 1

Mike Mavrigian

Dec. 4, 2020

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When removing torque converter bolts and washers, take special care that the same bolts and washers are used when installing the torque converter. Using an incorrect length bolt or incorrect thickness washer can result in damage. Note that not all applications will require washers on the torque converter bolts.

In most applications, there will be one black torque converter bolt. Be sure to install this first to aid in aligning the torque converter to the flywheel. Follow the bolt torque specification found in the appropriate service manual.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.