Do not driveNHTSA·Cars and vehicles·April 2, 2026

Sleepy Customs recalls IS300 slave cylinder conversion kits because the adapter plate can come off the transmission

The adapter plate can separate from the transmission housing while driving, causing loss of clutch function and the ability to shift gears, which makes it harder to control speed and raises the risk of a crash.

What to do

Do not drive a vehicle fitted with this kit until the repair is done. Sleepy Customs will provide a free replacement adapter plate; contact customer service at 360-504-6213 or sales@sleepycustoms.com.

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Recall details

Product
Sleepy Customs Is300 Slave Cylinder Conversion Kit
Hazard
An inability to shift gears reduces the driver's ability to control vehicle speed, increasing the risk of a crash.
Units
121 pieces of equipment
Owner notification
May 2, 2026
Reported to NHTSA
April 2, 2026
Identifiers
  • NHTSA campaign number: 26E018000

The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.

Official notice

The notice's own wording from NHTSA.

Component
POWER TRAIN:CLUTCH ASSEMBLY:SLAVE CYLINDER
Defect
Sleepy Customs LLC is recalling certain IS300 Slave Cylinder Conversion Kits, both full kits and adapter plate only versions. The adapter plate may separate from the transmission housing during vehicle operation, resulting in loss of the clutch function and ability to shift gears.
Consequence
An inability to shift gears reduces the driver's ability to control vehicle speed, increasing the risk of a crash.
Corrective action
Owners are advised not to drive their vehicle that is equipped with the conversion kit until the remedy is performed. Sleepy Customs LLC will provide a replacement adapter plate, free of charge. Owners may contact Sleepy Customs, LLC customer service at 360-504-6213 (sales@sleepycustoms.com).

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