SKU: 88525086909

7.3L Powerstroke Engine Harness w/ California Emissions - 2000-2001 Ford F-Series

Sale price$140.82 Regular price$156.47
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Description

7.3L Powerstroke Engine Harness w/ California Emissions - 2000-2001 Ford F-Series7. 3L Powerstroke Engine Harness 19992001 Ford F Series Automatic Transmission California Emissions Built After 10 25 1999 Part Number: YC3Z 12B637 BA Electrical issues on a late 992001 7. 3L can quickly turn into a nightmareinjector drop out, rough running, intermittent no starts, or random sensor faults. In many cases, the root cause is a failing engine harness. This OEM style Engine Harness (YC3Z 12B637 BA) is designed specifically for California

7.3L Powerstroke Engine Harness – 1999–2001 Ford F-Series

Automatic Transmission | California Emissions | Built After 10/25/1999
Part Number: YC3Z-12B637-BA

Electrical issues on a late ’99–2001 7.3L can quickly turn into a nightmare—injector drop-out, rough running, intermittent no-starts, or random sensor faults. In many cases, the root cause is a failing engine harness.

This OEM-style Engine Harness (YC3Z-12B637-BA) is designed specifically for California emissions trucks with automatic transmissions built after 10/25/1999, ensuring correct connections, proper routing, and reliable communication between your injectors, sensors, and PCM.


🔥 Key Features

  • Correct Fit for Late 1999–2001 California Emissions Trucks
    Designed for trucks built after 10/25/1999

  • Automatic Transmission Specific

  • OEM-Style Direct Replacement
    Matches factory connectors, routing, and layout

  • Restores Injector & Sensor Performance
    Fixes issues caused by damaged or aging wiring

  • Eliminates Electrical Gremlins
    Helps resolve misfires, no-start conditions, and intermittent faults

  • Durable Engine Bay Construction
    Built to handle heat, vibration, and long-term use

  • Plug-and-Play Installation


🛠️ Why Replace Your Engine Harness?

Over time, factory harnesses break down due to:

  • Heat cycling

  • Brittle insulation

  • Oil contamination

  • Corroded or loose connectors

Replacing the harness restores proper signal integrity across your entire engine system, improving reliability and drivability.


🚚 Fitment

  • 1999–2001 Ford F250 7.3L Powerstroke

  • 1999–2001 Ford F350 7.3L Powerstroke

Requirements:

  • Automatic transmission

  • California emissions

  • Built after 10/25/1999


⚠️ Fitment Notes

  • Will NOT fit Federal emissions trucks

  • Will NOT fit manual transmission applications

  • Build date verification is required for proper fitment


If you’re chasing electrical issues on a late-model 7.3 or doing a proper engine refresh, this YC3Z-12B637-BA engine harness restores factory reliability and ensures your truck runs the way it should.

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 88525086909

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