SKU: 4103-RT001 | UPC: 4957266553015
HKS / Blitz / Apexi / Stri 87-90 Supra MK3 & 85-88 (TT-1) 4-Runner TT Harness
This wiring harness enables direct connection of HKS Blitz Apexi or Stri turbo timers to 1987-1990 Toyota Supra MK3 and 1985-1988 Toyota 4Runner TT-1 models. It delivers reliable signal transmission from the ignition and turbo speed sensor for consistent post-drive spool-down. Install in minutes without cutting factory wires to safeguard your turbocharger.
Key Features
- Multi-Brand Compatibility: Works with HKS GT2 SSQV Blitz Apexi Stri turbo timers using standard connectors
- Plug-and-Play Design: Pre-wired with vehicle-specific plugs matching Supra MK3 and 4Runner TT-1 ECU harnesses
- Durable Construction: 18AWG heat-resistant silicone-insulated wires rated for engine bay temperatures up to 200C
- Precise Signal Relay: Low-resistance terminals ensure accurate RPM and speed sensor data to turbo timer
- Compact Layout: 1.5m length routes cleanly along firewall without excess wiring
Product Notes
- Confirm your turbo timer model matches HKS Blitz Apexi or Stri TT series before purchase
- Special order item expect 3-5 business days processing
- Handle with care to avoid bending connector pins during storage
Installation Notes
- Professional installation recommended.
- Locate gray ignition wire and white turbo speed sensor wire behind passenger kick panel
- Includes OEM-style Molex connectors no modifications to vehicle harness needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987-1990 | Toyota | Supra | MK3 7M-GTE Turbo |
| 1985-1988 | Toyota | 4Runner | TT-1 22R-TE Turbo |
Why Choose HKS?
- HKS leads JDM tuning with decades of motorsport-proven components
- Factory-direct quality control exceeds OEM standards for longevity
- Exact-fit engineering from Japanese production lines
Frequently Asked Questions
- Q: Will this harness fit 1989 Supra MK3 with 7M-GTE?
A: Yes fits all 1987-1990 Supra MK3 turbo models with factory turbo speed sensor - Q: What materials are used in the wiring?
A: 18AWG tinned copper conductors with silicone insulation and polyolefin tubing for heat and abrasion resistance - Q: Does installation require soldering or cutting wires?
A: No fully plug-and-play tap into existing harness plugs in 30 minutes or less
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Anti-static bag inside 10x6x2 inch corrugated box
- Weight: 0.4 lbs
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