5HP19 Planetary, used and ready to install. Fits the 5HP19. Ships fast from the USA.
If your VW Passat or Audi A4 with the ZF five-speed automatic came apart with a chewed-up gearset, this is the hard part you are hunting for. It is a used, original ZF 5HP19 overdrive sun gear together with its planetary gears, pulled from a 2002 Passat 4Motion with the FAS transmission code. Most people land here after a teardown turned up a pinion with heat discoloration, a sun gear with worn teeth, or a pan full of glitter after the car started whining at speed or dropping a gear.
ZF built the 5HP18 and 5HP19 around a Ravigneaux compound gearset plus a third planetary set, for three gearsets in total, applied by three brakes and four clutches. Power flows through the sets in series, which is why this family has more parts inside than the later six-speeds. The sun gear is the center member that the planet pinions orbit; when a clutch drives it or a brake holds it, the carrier and ring gear turn at a new speed and the transmission changes ratio. In fifth the unit runs a 0.742 overdrive ratio, so the gears in this set spend long highway miles turning against each other under load. A dry pinion bearing or a cracked thrust washer here wears fast once it starts.
Rule out the easy causes first. Low fluid and a slipping clutch pack can both make noise and lose a gear, so check level and run through our transmission slipping diagnosis guide. If the noise follows vehicle speed in every range, the gearset is the prime suspect. Once the unit is apart, check each pinion for end play and rough rotation, inspect the sun gear teeth and splines, and look at every thrust surface. Our thrust washer and end play guide explains what to measure.
This set came out of a 5HP19 with the FAS code from a 2002 Passat 4Motion, which is the all-wheel-drive 5HP19FLA version. That family was used in Audi A4 quattro and A6 quattro models and in the Passat 4Motion from roughly 1998 to 2005. There is one trap you need to know about. Transmission Digest reported that ZF used two turbine-speed sensor designs in the 5HP19/FLA, a pulse-generator type and a Hall-effect type, and that the sun gear is not interchangeable between them even though the two look almost identical. The quick check is a magnet: it sticks to the sun gear from a pulse-generator unit and does not stick to the Hall-effect version. Mixing them can leave the car with no upshift or a jump into failsafe. Test your old sun gear before ordering, or send us your year, VIN and the code from the transmission tag and we will confirm the match. For other ZF and import units, browse our shop by transmission page.
| Fits | 5HP19 |
| Part type | Planetary |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
The quattro A4 used the all-wheel-drive 5HP19FLA, the same family this set came from. Before ordering, do the magnet test on your old sun gear: pulse-generator and Hall-effect units use different sun gears that look alike. Send your VIN and transmission tag code if you want us to confirm.
Hold a magnet to it. Transmission Digest notes that a magnet sticks to the sun gear in pulse-generator units but not in Hall-effect units, because the Hall-effect sensor reads a magnetic band on the A-clutch drum through the sun gear.
It is a used original ZF part removed from a running 2002 Passat 4Motion transmission with the FAS code. Inspect it on the bench and set end play during assembly as you would with any hard part.
Thrust washers and bearings, plus the clutches and seals in a master rebuild kit, because the debris from a gearset failure contaminates the whole unit. Check the drums and hubs that drive the set, and flush the cooler.
Speed-related whine that is loudest in the higher gears points to the gearset or its bearings. Confirm fluid level first, then listen in each range; if it follows road speed, inspect the planetary sets during teardown.
