Ford Parts 6C11-2B663-AA Front Wheel Hub Bearing for Ford Transit V348 On Ford Transit V348 / JMC New Generation Quanshun (L536), a worn front hub bearing starts as a low “wurr-wurr” that gets louder with speed, then turns into steering wander, ABS wheel-speed noise, and MOT/annual-inspection failure on brake/axle checks. This unit replaces OE 6C11-2B663-AA (also 6C11-2B663-BA / 6C11-1K018-AA / 1377907). Where SKF-branded, it maps to VKBA 6525 — gen-2 sealed hub bearing,