View our Specials! Coupon Code: SaveIn2026
0 Reviews
FAST offers several main harness options to aC-Commodate most customers' needs. The XFI Main Harness is responsible for connecting your XFI ECU to sensors as well as digital dashes, EGT modules, and various optional accessories. The Main Harness also handles communication between the ECU and ignition devices. Main harnesses are available in TPI, LT-1, LS-1 through 9 (including truck/suv designs), Modern Hemi, Carburetor Conversions and even Rear-Engine Dragsters and Boats. FAST also offers Main Harnesses that come terminated on the sensor side but non-terminated on the ECU side to allow for a truely custom fit. All terminals, seals and connectors are available individually, so don't hesitate to try your hand at crafting your own custom harness from start to finish.
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
Sorry we do not have fitment information available for this part number. Contact us for any fitment questions. | |||||
WARNING: Cancer & Reproductive Harm www.p65warnings.ca.gov IN STOCK Fleece Performance FPE-HAR-CUMM-CF-0312Fleece Performance Extension Harnesses Fleece Performance 03-12 Dodge 2500/3500 Cummins Cooling Fan Pigtail $84.69
|
 $159.93
|
 IN STOCK Haltech HT-141233Haltech Elite 2000/2500 Adpt Harns Haltech Elite 2000/2500 Plug-n-Play Adaptor Harness $460.00
|
 IN STOCK - LOW Haltech HT-141328Haltech Elite 1000-2500 Adpt Harns Haltech Elite 1000-2500 Plug-n-Play Adaptor Harness $460.00
|
 IN STOCK Fleece Performance FPE-HAR-CUMM-IAT-PTFleece Performance Extension Harnesses Fleece Performance 07.5-22 Dodge 2500/3500 Cummins 6in Temperature Sensor Pigtail $52.02
|
 $126.48
|
 IN STOCK Fleece Performance FPE-HAR-CUMM-FAN-1318Fleece Performance Extension Harnesses Fleece Performance 13-18 Dodge 2500/3500 Cummins Cooling Fan Extension Harness $70.83
|
