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Navigating JLR Engine Numbers

JLR engine numbers guide: Understanding and navigating Jaguar Land Rover engine identification for optimal performance and maintenance
10 Dec 2023

The Common Thread in JLR Engine Numbers

Jaguar Land Rover, synonymous with luxury and performance, employs a unified approach to engine numbering. Understanding these nuances is vital for enthusiasts.

Cracking the Engine Code

Every Jaguar Land Rover vehicle boasts a unique engine, identified by an alphanumeric code. Discover the shared approach rooted in common platforms and technologies.

The Engine Number Breakdown

  1. AJ-V8: This engine series, denoted by codes like AJ26, AJ27, and AJ133, is a versatile powerhouse found in various Jaguar and Land Rover models. From the XJ to the Range Rover, this engine family showcases the brand's commitment to consistent performance.
  2. Ingenium: The modern Ingenium engines, identified by codes like 20d, 30t, and 40c, power a range of models, offering a balance of efficiency and power. Whether you drive an F-PACE or a Discovery Sport, these engines are designed for optimal performance.

Deciphering Associated Part Numbers

As engines span across different models, associated part numbers add another layer to the puzzle. Parts like alternators, water pumps, and sensors may share numbers among various models. While it might seem intricate, this shared compatibility ensures efficient manufacturing and easier access to replacement parts.

Navigating the Engine-Specific Landscape

  1. Check Your Vehicle's Manual: Your owner's manual is a treasure trove of information. It often includes a breakdown of engine codes specific to your model, offering clarity on what powers your vehicle.
  2. Online Resources: Utilize online resources and forums dedicated to Jaguar Land Rover enthusiasts. Engaging with the community can provide insights into real-world experiences with specific engine numbers.
  3. Rover Parts Depo: Your Engine Number Expert. At Rover Parts Depo, we understand the importance of precision when it comes to engine numbers. Our team is well-versed in the intricacies of Jaguar Land Rover engines, ensuring that you receive parts tailored to your specific model. From the iconic AJ-V8 to the efficient Ingenium, we have the expertise to guide you through the engine number maze.


In the world of Jaguar Land Rover, engine numbers are more than codes; they're a narrative of performance and innovation. Trust Rover Parts Depo to be your expert guide, ensuring that every part aligns seamlessly with the heartbeat of your vehicle.

For expert guidance on Jaguar Land Rover engine numbers, choose Rover Parts Depo. Contact us today for precision and performance.