FAST 301208 XFI Injector Wiring Harness for 06-23 Dodge 5.7/6.1/6.4L Hemi -USCAR

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Product Specification:

SKU:FST301208

MPN: 301208

UPC: 036584134169

Weight: 0.9 lb

Inventory: 10

Type: Fuel Components Misc

Vehicle Fitment

2006-2023 Chrysler/Dodge/Jeep Hemi V8 (5.7L, 6.1L, 6.4L) with USCAR/EV6 injectors

Fitment Notes

Designed for use with FAST XFI ECU systems, does not work with OEM ECU
Supports firing order 1-8-4-3-6-5-7-2 on New Hemi engines
Not CARB-compliant--racing or off-road use only

Features

OEM-style USCAR/EV6 connectors for reliable fitment
Pre-terminated plug for direct connection to FAST XFI main harness
Built-in color-coding and labeling for easy installation
Heavy-duty wiring supports injector upgrades and power scaling
Includes integrated fuse/relay block for circuit protection
High-temperature rated wire and insulation for under-hood reliability
Secures neat, organized engine bay wiring
Backed by FAST's limited warranty

Specifications

Part Number: 301208
Connector Type: USCAR/EV6
Engine Compatibility: 5.7L, 6.1L, 6.4L New Hemi V8
Firing Order: 1-8-4-3-6-5-7-2
Wire Length: Plugs into FAST XFI main harness
Temperature Rating: Under-hood rated insulation

Included Components

1x Injector wiring harness with 8 USCAR/EV6 connectors
1x Integrated fuse and relay block
Installation guide

Product Description

The FAST 301208 XFI Injector Wiring Harness is engineered for seamless integration with FAST XFI ECU systems on 2006-2023 New Hemi engines (5.7L, 6.1L, and 6.4L). Featuring OEM-style USCAR/EV6 connectors and a plug-and-play design, it ensures reliable injector control and supports high-power setups.

With clearly labeled, color-coded wiring and integrated fuse/relay block, it simplifies installation while enhancing durability under high-heat conditions. This harness supports the correct 1-8-4-3-6-5-7-2 firing order and allows for future injector upgrades--ideal for street, track, or race applications. Designed for performance and ease, it's a trusted component for EFI conversions and advanced fuel management systems.