Notified by email when this product becomes available
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
ADDED FEATURES INCLUDE
1 YEAR WARRANTY
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.
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.
Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.
⚠️ WARNING (California Proposition 65):This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.For more information, please visit www.P65Warnings.ca.gov.
