Sold out
Click to zoom in
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
HKS
HKS is a Japanese manufacturer of premium performance parts founded in 1973 that has been at the forefront of turbocharged engine development, producing turbochargers, exhaust systems, engine management, intercoolers, and supporting performance components for some of the most iconic Japanese sports cars ever built. The brand's GT and GTIII turbocharger series, Super Sequential Blow Off Valves, and Racing Suction intake kits are recognized globally as benchmark-quality products that combine Japanese manufacturing precision with decades of motorsport development experience. HKS products are particularly well-known in the Toyota Supra, Mitsubishi Evo, Subaru STI, Nissan GT-R, and Honda NSX communities, where the brand's heritage in building the world's fastest versions of these cars has created a loyal following among enthusiasts who want the best available components. From a simple racing suction kit to a complete GT turbo with intercooler and ECU tune, HKS provides an end-to-end perf...
View HKS ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
