Power Steering Oil / ACE Fluid STC50519- 1L CAN

Power Steering Oil  / ACE Fluid STC50519- 1L CAN

Description

• STC50519 is a specialised fluid described as an “ACE & power-steering fluid (Cold-Climate)” for certain Land Rover / Range Rover models.
• The product page states: “This is a fully synthetic ACE and power steering fluid (STC50519) for Land Rover and Range Rover, suitable for extreme conditions.”
• “ACE” here often stands for Active Cornering Enhancement, meaning it is used in the hydraulic system for the steering/vehicle dynamic system in those vehicles.
• Shipping notes: It is hazardous material (as typical for hydraulic fluids), ground shipment only as per one distributor.

Fitment (Vehicle Application)

According to fitment listings, STC50519 is used in a variety of Land Rover / Range Rover vehicles. Examples include:

• For instance, the GermanAutoParts listing shows application for:
• Land Rover Defender 110 (3.9L V8) – 1993 model year.
• Land Rover Defender 90 (3.9L V8) – 1994-95.
• Discovery (various years, V8 engines) – e.g., 1994-95 Discovery 3.9L V8.
• LR3 (2005-09) 4.0L / 4.4L V8.
• LR4 (2010-13) 5.0L V8.
• Range Rover / Range Rover Sport (various 4.2L, 4.4L, 5.0L V8).
• One listing: “Land Rover Range Defender LR3 LR4 Discovery… Power Steering Fluid 1L STC50519 – Range Rover 03-12…”
• Another indicates: “ACE and Power Steering Fluid STC50519 for Land Rover / Range Rover Cold Climate” as per SP-4x4 site.
• Hence, it covers a broad set of vehicles with ACE / power steering hydraulic systems — but as always: verify based on your vehicle VIN / steering system.

Alternative / Superseded Part Numbers

• The fluid is sometimes referenced with OE numbers: e.g., one listing notes “LRN2261” as OE in a listing for STC50519.
• The GermanAutoParts page indicates cross-reference “8403107”.
• Some aftermarket equivalents: Although specific brand alternatives aren’t always listed, the fact that Pentosin is a brand suggests you may find equivalent fluids from other specialty hydraulic fluid manufacturers providing Land Rover-approved spec.
• Important: When selecting an alternative, ensure the fluid meets the same specification (ACE system compatibility, cold-climate hydraulic fluid, OEM approval for Land Rover).
• Also note: In many vehicle service manuals, Land Rover may reference “Power Steering Fluid – ACE system” and give an OEM fluid spec; using a non-approved fluid might impact the system performance or warranty.

Summary Table