The Toyota W Series of transmissions, including the W55, W56 and W58, were built by Aisin Seiki Co., Ltd and installed at the factory in numerous Toyota vehicles during the 1980s and Lexus cars during the 1990s and up to 2005. The W55 was the first in the switch from the heavier steel-cased transmission to a lighter-weight aluminum-cased unit.
If you're in search of a high-quality W55 transmission bearing replacement kit for your 1978-1985 Toyota Celica 2.4L four-cylinder car or your 1983-1991 Toyota 4 Runner 2.4L four-cylinder SUV, this bearing kit BK162 is what you want. It's also the appropriate W56 transmission bearing repair kit for the 1983-1991 four-cylinder 2.4L Toyota pickup truck and the 1983-1991 2.4L four-cylinder Toyota 4 Runner with a W56 transmission. As a W58 transmission bearing kit, it's used for the 1982-1985 2.8L 5-speed Supra and 1986-1991 3.0L 5-speed Toyota Supra. This bearing kit contains everything you need for a full bearing rebuild.