Adapter Harness For 140021

The Adapter Harness For 140021 is a precision ignition wiring harness engineered for modern digital fuel injection (DFI) Gen 7 engine management systems. This harness bridges the gap between OEM Mopar ignition coil connectors and aftermarket DFI controllers, making it essential for engine builders, performance tuners, and restoration specialists converting classic Mopar platforms to contemporary fuel injection. If you're upgrading a muscle car or vintage hot rod with next-generation ignition technology, this adapter harness eliminates costly wiring errors and ensures reliable spark delivery from day one.

Built by ACCEL, a trusted name in ignition systems, the Adapter Harness For 140021 features a coil pigtail connector that mates Mopar OEM coil outputs directly to DFI Gen 7 module inputs without splicing or modification. The harness is constructed with properly gauge-rated conductors and sealed connectors that resist moisture and vibration, critical for under-hood reliability in high-performance environments. The compact design—measuring just 3.1 x 1.1 x 6.2 inches and weighing only 0.08 lbs—fits neatly in tight engine bays while maintaining full electrical integrity across the ignition signal path.

This adapter harness is ideal for restorers and performance builders working with Mopar muscle cars, factory 440 or 426 Hemi platforms, and street/strip builds requiring DFI Gen 7 conversion without full rewiring. The plug-and-play design accelerates installation, reduces troubleshooting time, and maintains OEM-quality signal integrity critical for proper ignition timing and fuel mixture control. For anyone serious about a clean, reliable DFI upgrade on a classic or restomod Mopar, the Adapter Harness For 140021 is the factory-engineered solution.