HKS Turbo Timer Harness TT-4 Toyota Celica/Corolla/Estima/Regius/Supra

HKS Turbo Timer Harness TT-4 Toyota Celica/Corolla/Estima/Regius/Supra

HKS Turbo Timer Harness makes it easy and safe to install the HKS Turbo Timer. Take out the key switch wiring connector and connect the HKS Turbo Timer Harness for easy and reliable connection.
We recommend using the HKS Turbo Timer Harness with HKS Turbo Timer for best performance. ACC(accessory) might not work at the timer operation if used with other company’s harness with HKS product.

View Frequently Asked Questions Here

The Characteristics of HKS Turbo Timer

  • The Turbo Timer connector has a lock which will prevent from detaching. (Some might not have it)
  • The vehicle will work the same way for the normal situation even when the timer is operating because IG1/IG2 and accessories can provide electricity.(How some features such as automatic seat position adjustment, steering tilt mechanism and remote door lock might not work for timer in operation.)

HKS electronic devices will provide the better driving performance and support for your vehicles.

You will need electronic control devices and software settings for the ultimate tuning performance. The electronic control devices will control the vehicles in a higher level for the best total tuning performance. Modern vehicles are equipped with sophisticated software that controls the vehicles and HKS provides easy to use for beginners and also provide supports for professional tuners.

This product is compatible with the following vehicles

Vehicle Make Vehicle Model Vehicle Variant From To Engine Notes
Toyota Celica ST205 1994 1996 3SGTE 2.0L GT-Four - 4WD Petrol
Toyota Corolla Levin 1991 1995 4AGZE 1.6L GT - FWD Petrol
Toyota Corolla Levin 1991 1995 4AGZE 1.6L SJ - FWD Petrol
Toyota Estima Emina 1992 1999 3CT 2.2L TD - 4WD Diesel
Toyota Estima Emina 1992 1999 3CT 2.2L TD - RWD Diesel
Toyota Estima Lucida 1992 1999 3CT 2.2L TD - 4WD Diesel
Toyota Estima Lucida 1992 1999 3CT 2.2L TD - RWD Diesel
Toyota Regius TD 1997 2002 1KZTE 3.0L - RWD Diesel
Toyota Regius TD 1997 2002 1KZTE 3.0L - 4WD Diesel
Toyota Supra Mk4 1993 1996 2JZGTE 3.0L - RWD Petrol

Whether it is engine, exhaust, suspension, or drive-train systems, there is no substitute for the performance, quality and reliability of HKS. Part-Box/Co-ordSport are an approved distributor for HKS performance and tuning products.

For over 35 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.


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  • Product Code: 4103-RT004
  • Availability: Status Checked Upon Ordering
  • RRP: £11.40 (incl. Tax)
  • Ex Tax: £9.50

Tags: HKS-Turbo-Timer-Harness-TT-4