ZF 6HP26 6HP28 6HP32 Transmission Oil Pan Filter Kit

This kit is for owners who have read the ID plate on their transmission and found 6HP26, 6HP26X, 6HP26Z, 6HP28 or 6HP32, whether it sits in a BMW 7 Series, a Jaguar XJ or a Land Rover. If the car is leaking ATF from the bottom of the case or shifting harder and flaring as the original fluid ages, the pan and its molded-in filter are the service item. You get a new pan with the integrated filter, a rubber gasket and 21 upgraded Torx bolts.

What the pan and filter do across these ZF codes

On these units the filter element is part of the plastic pan, so fluid service and filter replacement are the same job. The pump pulls through the element and feeds the mechatronic unit sitting just above it. Vehicle Service Pros groups the 6HP19, 6HP26 and 6HP32 as ZF's first generation and the 6HP21, 6HP28 and 6HP34 as the second, and hardware such as plugs and pans changes by exact application code inside those groups. That is why this page lists codes rather than calling it a pan for every ZF six-speed.

Symptoms

• A slow ATF drip from the pan flange, often blamed on a warped gasket
• Harsh or flaring shifts as old fluid loses its friction properties
• Delayed engagement into gear after the car sits overnight
• Pump noise or overheating from a restricted filter

Remember the 6HP's known faults sit right above this pan: mechatronic solenoid wear and lip seal pressure loss. A pan service clears fluid-related complaints, not those.

How to confirm before ordering

Read the ZF plate on the side of the case for the code and the number on your existing pan. Then confirm the leak source: fluid that appears first at the pan flange is this kit, while fluid tracking from the electrical connector is the sleeve. Once the old pan is down, a burned smell or large metal pieces mean stop and diagnose further. Our pan and filter service guide walks that check step by step, and Jaguar owners should read the ZF6HP Jaguar problems guide for the faults that mimic a fluid problem.

Fitment

Listed for ZF 6HP26, 6HP26X, 6HP26Z, 6HP28 and 6HP32 in BMW E60/E61 525i through 550i, E63/E64 645Ci through 650i, E65/E66 745i through 760Li, E70 X5, E71 X6 and E90/E92 diesels, plus Jaguar and Land Rover applications of the same transmissions. It cross-references 24117571227, 24152333903, 24117522923 and 24117519359. Variations exist inside these families, so match your old pan or send your year and VIN before ordering. Land Rover owners: on the LR3, LR4 and Range Rover the factory procedure for the one-piece plastic pan involves loosening the engine mounts and removing exhaust, so budget the labor. Browse every ZF six-speed part we stock on the ZF 6HP collection.

Install notes

• Break the old bolts loose crosswise. The included Torx bolts replace the small-head originals that round off.
• Clean the rail dry, set the gasket in its groove and torque crosswise from the middle out; ZF lists 10 Nm for plastic pans. Chase dirty case threads before torquing so the reading is real.
• Fill through the fill port with the engine idling in Park, cycle the selector, and set the level once the fluid is between 30 and 40 C. Never check it above 50 C.
• Fluid is not included. Triax ATF 689 full synthetic is one option we stock; check your code against ZF's lubricant list first, and buy enough for 5 to 7 liters.
• If you are already chasing a shift code, our 6HP26 shift solenoid kit goes in from the same side once the pan is off.

Does this pan fit both the 6HP26 and the 6HP28?

It is listed for the 6HP26, 6HP26X, 6HP26Z, 6HP28 and 6HP32. Because hardware varies by exact application, compare the number on your old pan or send us your year and VIN before ordering.

Is this a good fit for a Land Rover LR3 or Range Rover?

The listing covers Land Rover applications of these ZF units, but the factory pan removal on the LR3, LR4 and Range Rover involves the engine mounts and exhaust. Confirm your pan number and plan the labor before you start.

How much fluid will I need?

A pan drop usually recovers about 5 to 7 liters because the converter and cooler hold fluid back. Buy at least six liters of an approved fluid for your transmission code.

Why does a 6HP need the fluid set by temperature?

There is no dipstick. ZF's procedure sets the level at the fill hole within a fluid temperature window, roughly 30 to 40 C. Filling cold and stopping overfills it once hot, and checking above 50 C reads falsely full.

What else should I replace while the pan is off?

Look at the mechatronic connector sleeve if the case is wet near the plug, and consider solenoids if you have shift codes. Inspect the old pan contents first; metal pieces mean a deeper problem.

• ZF6HP Filter and Pan Service Guide: Pan Material Decides the Torque
• ZF6HP Jaguar Common Problems and Fixes
• ZF6HP Jaguar Shift Problems: Diagnosis and Fix
• ZF6HP High-Mileage Service Checklist: What to Check, in What Order, Before You Touch the Fluid