FAST · New
FAST Harness FAST VSS and Auxiliary Shaft Wiring Harness
MPN 301403 · Store SKU fst301403
Supplier stock checked 11/8/2026, 6:44:12 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
This harness allows you to connect a vehicle speed sensor or a driveshaft speed sensor to your XFI computer. This adapter kit allows for added functionality with the FAST XFI. Vehicle Speed Sensor/Traction Control Harness for XFI
Manufacturer fitment & guides
Check 301403 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- California Proposition 65: Y