Motorcraft OEM Serpentine Belt Tensioner — Part Numbers BT-70 / 3C2Z-6B209-AA
Brand: Motorcraft (Ford) | Condition: New Old Stock (NOS)
You are purchasing a genuine Motorcraft OEM Serpentine Belt Tensioner, part numbers BT-70 / 3C2Z-6B209-AA. This is an authentic factory original part — never installed, never used.
Condition Details
This is a New Old Stock (NOS) part. The belt tensioner itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes. The part is new and fully functional.
Part Number / Supersede Information
Primary OEM Part Numbers: BT-70 / 3C2Z-6B209-AA
This tensioner is for single alternator applications. Trucks equipped with dual alternators require a different part number. We recommend verifying current supersede status through your local Ford dealer or the official Ford/Motorcraft parts catalog prior to ordering.
Why Choose OEM Parts?
OEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Unlike aftermarket alternatives, OEM parts are designed specifically for your vehicle — no modifications, no guesswork.
Compatibility
This serpentine belt tensioner fits single alternator Ford 6.0L Power Stroke diesel trucks: F-250, F-350, F-450, and F-550 Super Duty (2003–2007) and Ford Excursion (2003–2005) with 6.0L Power Stroke diesel. Note: For single alternator configurations only. Please verify your vehicle's alternator configuration before ordering.
Returns
We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.
Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience.
Please verify fitment using your equipment's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!
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