Details

• Brand:

  

  

• SKU:

  KB3Z-4616-A

• Positions: Rear Inner Outer, Rear Outer Outer
• Other Names:

  Outer Pinion Cup, Cup

• Description:

  UNVERIFIED. The Ford base number 4616 corresponds to a Cup, specifically an outer pinion bearing cup or race used in the differential, and the KB3Z prefix corresponds to the 2019 and newer Ford Ranger service line, but repeated searches across the dealer catalog network did not surface a catalog page confirming positive year, model, and engine fitment for the specific KB3Z-4616-A suffix. The 4616 base number is firmly established as a pinion cup on other Ford applications, yet a dealer page showing positive fitment for this exact part number on the Ranger could not be located after multiple distinct search phrasings, so fitment is not confirmed. A pinion bearing cup is the hardened outer race that the pinion bearing rolls against inside the differential, supporting the pinion gear and maintaining correct preload and mesh with the ring gear. A buyer would replace the cup when rebuilding a differential or when a worn or pitted race produces a whine, growl, or rumble from the rear axle. Because positive fitment could not be confirmed for this suffix, the buyer should verify the exact application against a Ford parts catalog using a vehicle identification number before purchase. Confirm the model year and rear axle configuration against the dealer catalog to ensure this is the correct race for your differential. As a Genuine Ford component it would carry the hardness and dimensional specifications Ford applied to the original bearing cup.

• Applications: W/LIMITED SLIP.

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