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SKU #: CP-YC3Z12B637BA MPN #: YC3Z12B637BA

Complete Performance Engine Harness with CA Emissions & Auto Trans 99-01 Ford 7.3L Powerstroke

$314.99$349.99
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Description
Electrical problems on a late-model 7.3L Powerstroke can feel impossible to track down because the symptoms often come and go without warning. Rough running, injector drop-out, intermittent no-start conditions, or random sensor faults are commonly caused by a failing engine harness that has been exposed to years of heat, vibration, and oil contamination under the hood. This OEM-style YC3Z-12B637-BA Engine Harness is designed specifically for Ford F-Series 7.3L Powerstroke trucks equipped with automatic transmissions and California emissions, built after 10/25/1999. Designed with factory-style routing, connectors, and fitment, this harness restores reliable communication between your injectors, sensors, and PCM to help eliminate frustrating electrical issues and bring back consistent drivability. The durable construction is built to handle harsh engine bay conditions, while the plug-and-play design helps make installation more straightforward for repairs, maintenance, or engine refresh projects. IMPORTANT FITMENT NOTE: This harness is designed only for 1999-2001 Ford 7.3L Powerstroke trucks equipped with automatic transmissions and California emissions, built after 10/25/1999. Will NOT fit Federal emissions or manual transmission applications. Please verify your build date and emissions configuration before ordering.

Electrical problems on a late-model 7.3L Powerstroke can feel impossible to track down because the symptoms often come and go without warning. Rough running, injector drop-out, intermittent no-start conditions, or random sensor faults are commonly caused by a failing engine harness that has been exposed to years of heat, vibration, and oil contamination under the hood.

This OEM-style YC3Z-12B637-BA Engine Harness is designed specifically for Ford F-Series 7.3L Powerstroke trucks equipped with automatic transmissions and California emissions, built after 10/25/1999. Designed with factory-style routing, connectors, and fitment, this harness restores reliable communication between your injectors, sensors, and PCM to help eliminate frustrating electrical issues and bring back consistent drivability. The durable construction is built to handle harsh engine bay conditions, while the plug-and-play design helps make installation more straightforward for repairs, maintenance, or engine refresh projects.

IMPORTANT FITMENT NOTE: This harness is designed only for 1999-2001 Ford 7.3L Powerstroke trucks equipped with automatic transmissions and California emissions, built after 10/25/1999. Will NOT fit Federal emissions or manual transmission applications. Please verify your build date and emissions configuration before ordering.

Vehicle Fitment
1999-2001 Ford F-250/F-350 7.3L Powerstroke (California Emissions, Automatic Transmission, Built After 10/25/1999 Only)
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

  • Designed specifically for automatic transmission applications built after 10/25/1999
  • OEM-style direct replacement with factory-style routing and connectors
  • Helps restore proper injector, sensor, and PCM communication
  • Can help resolve injector drop-out, rough running, no-start conditions, and signal loss
  • Plug-and-play installation for a straightforward replacement process
  • Durable wiring construction built to withstand heat, oil exposure, and vibration
  • Improves reliability, drivability, and overall engine consistency
  • Ideal for repairs, maintenance, or full engine refresh projects
  • Built for long-term durability in harsh engine bay conditions
About Complete Performance
As the self-proclaimed OBS (Old Body Style) Ford Experts, the brothers that own Complete Performance, Paul and Chris Rutledge, have some big boots to fill. Fortunately, their entire team has the knowledge, experience, and reputation to back it up. Located in Jasper, Texas, they have turned from a small diesel repair and performance center to a widely recognized organization that is continually bringing to market new products and building vehicles you will find center stage at SEMA and gracing the pictures of performance magazines. Whether you drive an OBS Powerstroke or not, you can count on Complete Performance for upgrades that will deliver.