6HP26 Solenoid Kit 2005-2009, remanufactured and ready to install. Fits the 6HP26. Ships fast from the USA.
A 2005-2009 ZF 6HP26 that bangs into Reverse, flares between second and third, or drops into a locked gear with a transmission warning on the dash usually has one thing in common: tired solenoids on the mechatronic. This 6HP26 is the high-torque first-generation six-speed found mostly behind V8 and big diesel engines in BMW, Jaguar, Land Rover and Audi models of that era. The set shown is remanufactured and carries a 1-year warranty, so you replace the whole solenoid bank in one pan-off job instead of guessing at one coil at a time.
The transmission computer on a 6HP26 never moves a clutch by itself. It sends a controlled current to a solenoid, the solenoid turns that current into a precise oil pressure, and that pressure positions the valve that fills or exhausts each clutch. On the Gen 1 units the solenoid bank is a mix of pressure-regulating EDS solenoids (the blue and tan caps in the photo) and one on-off MV solenoid with a black body, which the second-generation 6HP28 dropped. One of the regulating solenoids sets line pressure for the whole box, so a weak one there is felt on every shift, not just one. All of them draw their working oil from a single solenoid pressure regulator valve, and the module learns a separate flow correction for each bore, which is why a worn set eventually runs the adaptations out of range.
Rule out the cheap causes first. Check fluid level at temperature and look at the pan magnet, then unplug the round connector at the case. On BMW cars a leaking sealing sleeve lets fluid wick into that plug and causes faults that look exactly like solenoid failure; a wet connector means fix the sleeve before anything else. Once the solenoids are out, test each one twice: a resistance check with the circuit board removed (the Sonnax test manifold instructions give 5 to 6 ohms at 68 F and warn against meters that put out more than 0.6 volts) and a vacuum test, because internal leakage is the failure an ohmmeter misses. Our ZF6HP shift solenoid guide walks through both tests, and if every shift is harsh rather than just one, read the ZF6HP pressure control solenoid guide first, since a worn regulator bore can mimic a bad set.
This set is for the first-generation 6HP26 built 2005 through 2009. That window matters because ZF was rolling out the second-generation 6HP28 at the same time, and several later V8 applications switched over before 2009 ended. The Gen 2 box uses a different solenoid layout with no MV solenoid and orange caps at two positions, so this set will not suit it. Read the ID plate on the side of the case: 6HP26, 6HP26X or 6HP26A belongs here; 6HP28 or 6HP21 needs the Gen 2 6HP21 and 6HP28 solenoid kit instead. Compare your old solenoids to the photo too, remembering that cap colors fade toward green and tan with heat. If you are not sure, send us your year and VIN before ordering. Everything else we carry for this family is on the ZF 6HP parts page.
| Fits | 6HP26 2005-2009 |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Only if the transmission is the Gen 1 6HP26. Some late V8 cars came with the second-generation 6HP28, which uses a different solenoid layout. Check the ID plate on the case or send us the VIN and we will confirm before it ships.
You can, but the solenoids wear together and the computer learns each one's flow rate. When the pan and valve body are already out, replacing the full set avoids a second teardown a few thousand miles later.
Yes. On the 6HP26 the solenoids live in the mechatronic unit under the pan, so the pan comes off and the mechatronic is lowered out. The solenoids are then reached by lifting the circuit board.
ZF LifeguardFluid 6 or a fluid specifically approved for the 6HP. The level is set with the engine idling and the fluid in its specified temperature range, using the fill plug on the side of the case.
It is strongly recommended. The old learned values were built around worn parts, so resetting them with a scan tool and then driving through every gear gives the module a clean start with the new set.
