Master overhaul kit for the ZF 6HP26/6HP28 six-speed: friction clutches, steels, gaskets, rings and seals to rebuild BMW, Jaguar and Land Rover units.
A worn ZF six-speed usually announces itself the same way whether it sits under a BMW 750i, a Jaguar XJ or a Range Rover: a flare on the upshift once the fluid is hot, a thump into gear, a transmission fault light and a damp bellhousing. When the clutches are worn and the seals have hardened, a full overhaul is the honest repair, and this master kit puts the friction plates and every gasket, lip seal, sealing ring and O-ring for the 6HP26, 6HP26A and 6HP28 in one box. It replaces ZF overhaul kit 1068298051 and matches the LMS-12 master repair set used in the trade.
The 6HP26 was the first six-speed automatic in a production car, launched by ZF in 2000 and first fitted to the 2001 BMW 7 Series. It uses the Lepelletier layout: a simple planetary with its sun held to the stator support, feeding a Ravigneaux gearset. Six forward speeds come from just five shift elements, three rotating clutches and two brakes, and there are no one-way clutches at all. Every shift is an overlap handled by the mechatronic, so each piston has to hold pressure exactly as commanded. A hardened lip seal or a leaking sealing ring bleeds that pressure off and the electronics cannot compensate forever. This kit renews all of those sealing points and the friction surfaces at the same time, which is what restores clean, quick shifts.
Do not condemn the clutches until you have checked the level and the electrics. A low fill on a ZF six-speed causes flares that look exactly like worn frictions, and a leaking connector sleeve causes communication faults. Read stored codes, check the clutch adaptation values, and pull the pan: heavy friction material on the magnets confirms internal wear. Jaguar owners should start with our Jaguar 6HP problems guide, and if harsh shifts are the main complaint, rule out the line pressure circuit with the 6HP pressure control solenoid guide first.
This kit is listed for the longitudinal rear and all-wheel drive 6HP26 family: 2002-2010 BMW 3, 5, 6 and 7 Series, the X5 and X6 including 550i and 750i applications, 2003-2010 Jaguar S-Type, XJ and XK, and 2004-2011 Land Rover Discovery 3 and Range Rover. ZF revised the mechatronic in 2006 for more oil flow, which split the family into Generation 1 (6HP19, 6HP26, 6HP32, roughly 2000-2005) and Generation 2 (6HP21, 6HP28, 6HP34, 2006 on). Seals and frictions are listed for both the 6HP26 and 6HP28 here, but valve body parts are not interchangeable between generations, and the internal stack changed over the run. Read the ZF tag on the case, compare your frictions and steels to the new set before you build, and send us the year and VIN if you want a second check. The full ZF six-speed range is on our ZF 6HP collection page.
Budgeting the whole job? Our ZF6HP rebuild cost breakdown covers labor, hard parts and when a rebuild beats a replacement unit.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, it is listed for the 6HP26, 6HP26A and 6HP28. The 6HP28 is a Generation 2 unit, so the friction and seal set carries over, but valve body parts do not. Check the ZF tag on your case before you order anything else.
The listing covers 2002-2010 BMW 3, 5, 6 and 7 Series plus X5 and X6, 2003-2010 Jaguar S-Type, XJ and XK, and 2004-2011 Land Rover Discovery 3 and Range Rover. Send us the year and VIN if you are not sure which unit you have.
No. The 6HP26 uses three clutches and two brakes and has no freewheel elements at all. Every shift is controlled by the mechatronic, which is why worn seals and frictions show up as flares and harsh shifts.
Plan on a connector sleeve and adapter seal kit, a pan with filter, enough ZF LifeguardFluid 6 for a full fill, and solenoids if yours are worn. The kit does not include the mechatronic, torque converter or hard parts.
Yes. Clear the old adaptation values and let the transmission relearn on a gentle drive. Adaptations learned on worn clutches will make the new ones shift harshly.
