7.3L Powerstroke Engine Harness w/ California Emissions - 2000-2001 Ford F-Series
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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • 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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Sean Krauer
Omaha, US
★★★★★ 1
Junk
Size: Large
They have molded seams in the center and squeaker part . Making them separate , with little use ...pretty much junk !
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Reviewed in the United States on December 15, 2025
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TLP
Port Orchard, US
★★★★★ 5
Good product!
Size: Large
These have become my cockapoo Max's favorite toys! He loves playing catch with them!
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Reviewed in the United States on May 18, 2026
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SoFlaGRAM
Massapequa, US
★★★★★ 5
loud but in a good way
Size: 4.5"
Love these crazy loud squeeky balls. I bought two a bit too big but the dogs still love them. Yes, they will drive you insane but the dogs love them so much it's worth it watching the pups enjoy the balls. They are strong and safe as long as they aren't too small for your dogs mouth.
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Reviewed in the United States on May 2, 2026
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Amazon Customer
Pawtucket, US
★★★★★ 5
Great for aggressive chewers - Great for clean teeth
I never thought these would stand up to my 60lb pittie puppy's chewing. But they are far and away her favorite toy and are holding up beautifully. One squeaker insert bit the dust -- which is not bad since it gives us one silent one. But otherwise they are holding up superbly to her powerful jaws. We have tried a lot of toys. So far, all the "for aggressive chewers" toys have been torn apart within days if we are lucky -- usually it's minutes. But these balls show little-to-no sign of wear. The squeakers are very loud which she loves can get a bit tiresome. So, as I mentioned, having one silent one is a great option. And she really likes the texture. She loves them so much, we bought a second set and will probably buy a third to have in reserve. (We are realistic and don't expect them to last forever.) All I have to say is "where's spiky ball" and she instantly stops what she is doing and goes on the hunt. A great buy!! (NOTE: It's been almost three months and one is just beginning to show some damage. Given that she plays with them non-stop, they've showed amazing durability. And everyone comments on how clean and beautiful her teeth are. I don't brush them or give her dental treats. So it has to be these balls!!)
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Reviewed in the United States on June 23, 2025
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amanda bragg
Louisville, US
★★★★★ 5
Good sturdy ball for aggressive chewer
Size: 4.5"
Nice heavy duty ball that my 7 yr old pitbull can chew on and not destroy it in 2 minutes. Wish that could get 3 for the cost but whatever. Nice bright colors . Good size that he won't choke on it .
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Reviewed in the United States on March 30, 2026

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