FAST
FAST Wiring Harness FAST Universal
SKU: F003 307040
Description
Part #: 307040
This harness provides a universal connection to sensors etc for our Classic System
Universal main harness for Classic
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | FAST |
| Part Number | F003 307040 |
Videos
How to install 4 pin trailer wiring on your car or truck. Fast and Easy!
Best fast Fuse tap explanation! - How to install a Fuse Tap for proper hardwiring & orientation
Re-Wire Your Whole Damn Car - How To Do It Correctly & Inexpensively
Haywire 14 Circuit Wiring Harness for your Classic!
We installed a Painless Wiring Harness, But Was It Really Painless?? #automobile #truck #diy #auto
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy