Genuine BMW ZF Z4 6hp21 6 Speed Automatic Gearbox Sump Kit 7L Oil. BMW ZF Z4 6hp21 6 Speed Automatic Transmission. 1 x Genuine Sump Pan. 1 x Pack of Screws. 7 x 1 Litre lifeguard 6.Before or after purchasing, please provide us with your car registration number or your VIN number so that we can confirm the part is correct for your vehicle. This item is in the category "Vehicle Parts & Accessories\Oils, Fluids & Lubricants\Gear/Differential Oils". The seller is "auto-trans-tech" and is located in this country: GB. This item can be shipped worldwide.