ZF Lifeguard 6 automatic transmission fluid TYK500050 1 liter for Land Rover LR3 LR4 and Range Rover

Auto Transmission Fluid TYK500050 ZF 6-Speed 1L

$45.91

Your Land Rover's ZF 6-speed automatic transmission is one of the most sophisticated and durable gearboxes fitted to any production SUV, but it depends entirely on the right fluid to keep it that way. TYK500050 is the OEM automatic transmission fluid specified for the ZF 6HP26 and 6HP28 six-speed automatic gearboxes used across the LR3 L319, LR4 L319, Range Rover L322, and Range Rover Sport L320 model lines. Using the correct fluid is not optional on these gearboxes. Running an incorrect or incompatible ATF can result in erratic shifting, shudder under load, premature clutch pack wear, and in severe cases, complete transmission failure. This fluid is the right answer, full stop.

Each bottle contains 1 liter (1.06 U.S. quarts) of fully synthetic automatic transmission fluid, sold individually so you can purchase exactly the quantity your service requires. Always consult your workshop manual or drain-and-fill procedure to confirm the exact quantity required, as capacity can vary slightly depending on the service method used.

Fits:

LR3 L319 (2005 to 2009) 4.4-liter AJ-V8 and 4.0-liter AJ-V6 Petrol/Gas
LR4 L319 (2010 to 2013) 5.0-liter AJ-V8 Petrol/Gas
Range Rover L322 (2006 to 2009) 4.4-liter AJ-V8 and 4.2-liter AJ-V8 Supercharged Petrol/Gas (Jaguar-sourced engines)
Range Rover L322 (2010 to 2012) 5.0-liter AJ-V8 Petrol/Gas and Supercharged Petrol/Gas
Range Rover Sport L320 (2006 to 2009) 4.4-liter AJ-V8 and 4.2-liter AJ-V8 Supercharged Petrol/Gas
Range Rover Sport L320 (2010 to 2013) 5.0-liter AJ-V8 Petrol/Gas and Supercharged Petrol/Gas

Part Number: TYK500050

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Supersessions LRN13754

FAQ

What is ZF Lifeguard 6 and why does it matter for my Land Rover?

ZF Lifeguard 6 is the original equipment automatic transmission fluid manufactured by ZF, the same company that built the 6HP26 and 6HP28 six-speed automatic gearboxes used in these Land Rover and Range Rover models. Because ZF engineered the transmission and the fluid together, Lifeguard 6 is formulated to the exact viscosity, additive chemistry, and friction modifier profile the gearbox requires. Using it means you are not relying on a cross-reference or a compatibility claim you are using the fluid that was designed for this transmission from the start.

How many 1-liter bottles do I need to complete a fluid change?

For the LR3 L319 and Range Rover Sport L320 with the 4.4-liter or 4.0-liter petrol/gas engine, a standard drain-and-fill service requires approximately 6 liters (6.34 U.S. quarts), so 6 bottles covers a standard change. A complete flush or dry fill on those same models requires approximately 10 liters (10.57 U.S. quarts). The Range Rover L322 from 2006 to 2009 with the Jaguar-sourced engines uses the same quantities. For the LR4 L319 and 2010 to 2012 Range Rover L322, refer to your workshop manual for the exact figure, as capacity can vary by service method.

Is TYK500050 the same product as LRN13754?

Yes. LRN13754 is the current part number that supersedes TYK500050, and both reference the exact same ZF Lifeguard 6 fluid meeting the Shell ATF M-1375.4 and ZF TE-ML 11 specifications. If your parts reference or workshop manual lists either number, this product is the correct match. You may also see this fluid referred to as ZF S671 090 255, which is ZF's own internal product reference for the same formulation.