2017 - 2024 Gen V LT4 SUPERCHARGED 8L90E 4 wire Standalone Harness
2017 - 2024 Gen V LT4 SUPERCHARGED 8L90E 4 wire Standalone Harness
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HPI 2017–2024 Gen V LT4 supercharged standalone harness for an 8L90E transmission. This listing is for the 4-wire configuration. Confirm the actual wiring on your engine before selecting the harness.
Phone tech support is included. We also provide these services. Mail order tune starting at $100.00, Base tunes starting at $100.00, Remote tuning starting at $200.00, Basic tuning training starting at $350.00 and Advanced tuning starting at $600.00.
WE also have GEN V 6L80E/6L90E T56 3 wire 4 wire 8L90E 3 wire 4 wire
WARNING: ECU NOT INCLUDED This is a 4 wire. In 2017, it was a split year for 3 wire and 4 wire so please make sure you know which wire you have. This harness is for a car or truck pedal. This harness is also for a 2 wire alternator. If you have a 4 wire alternator which is rare then you can buy a converter adapter from holley.
Description
APPLICATION: 2017 - 2021 Gen V LT4 SUPERCHARGED 8L90E 4 wire Standalone Harness AUTOMATIC TRANS PARTS INCLUDED: Complete engine and transmission wiring harness, Instruction Manual Fuse/Relay Box Fuel Pump Control (Relay included) Fan control option wires, Check Engine Light, Speedo output, Tachometer, OBD2 Port Accelerator Pedal and Throttle Body control (DBW setups) IAC and TPS on DBC setups MAF Sensor MAP Sensor Engine Coolant Temp Sensor Alternator Control (2) Upstream Oxygen Sensors Crankshaft Position Camshaft Position Fuel Injectors Coil Packs Automatic or Manual Transmission control Knock Sensors NOTES: These harnesses are designed for retrofitting ’14 – 17 4 wire LT1/L83/L86 GEN V engines with an 8L90E automatic transmission into older muscle cars and street rods or newer non-emissions controlled vehicles.
APPLICATION: 2017 - 2021 Gen V LT4 SUPERCHARGED 8L90E 4 wire Standalone Harness AUTOMATIC TRANS
PARTS INCLUDED: Complete engine and transmission wiring harness, Instruction Manual
- Fuse/Relay Box
- Fuel Pump Control (Relay included)
- Fan controls (Relays and fuse available separately KIT-1010)
- Check Engine Light, Speedo output, Tachometer, OBD2 Port
- Accelerator Pedal and Throttle Body control (DBW setups)
- IAC and TPS on DBC setups
- MAF Sensor connector
- MAP Sensor connector
- Engine Coolant Temp Sensor
- Alternator Control
- (2) Upstream Oxygen Sensors
- Crankshaft Position
- Camshaft Position
- Fuel Injector connectors
- Coil Pack connectors
- Automatic or Manual Transmission control
- Knock Sensors
NOTES: These harnesses are designed for retrofitting 2017 - 2021 Gen V LT4 SUPERCHARGED 8L90E 4 wire Standalone Harness automatic transmission into older muscle cars and street rods or newer non-emissions controlled vehicles. They are completely plug and play with four wire hookup (switched power, constant power and ground connections required). Harnesses are designed with a sliding grommet seal and 4 – 5 feet of length from the rear of the cylinder head to the PCM mounting position under the vehicle dashboard. A sliding grommet seal allows for professional, leak proof installation.
ADDITIONAL ITEMS REQUIRED: E92 ECM, T87TCM Reprogramming
36" ADDED LENGTH FOR EASY COMPUTER MOUNTING
UPGRADED WIRE FOR RUNNING THOSE BIG INJECTORS (will run any size injector without issues)
Harness comes with a complete install instruction packet.
Before you order: fitment and what to plan
Electrical parts carry power and signals around the car.
Fitment notes
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
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- Fuses and relays. Cheap to keep spares.
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