Why two Discoverys of one year take different parts
Land Rover ships heavy variation under a single nameplate: suspension type, axle and differential configuration, towing packs and emissions hardware that depends on the destination market. A Discovery built a few weeks after another can differ in exactly the assemblies a workshop replaces most.
None of that shows in the model name or the registration year. All of it is in the build record the VIN resolves, which is why the catalog asks for the VIN before it shows a diagram.
Reading an LR number
Current Land Rover numbers open with LR followed by six digits, like LR079532. The prefix names the maker before you search anything, which helps when a number arrives on a scrap of paper with no context.
Jaguar numbers of the same era look different: a letter, a digit, another letter, then four or five digits, as in C2D3670 or T4A44875. Older Land Rover numbers from before the LR scheme still circulate on forums and old invoices, and many of them have been superseded two or three times since.
TOPIx is the doorway, not the catalog
TOPIx is the portal JLR uses to deliver technical information to workshops, and parts data reaches the trade through it. If someone tells you TOPIx is the parts catalog, they are describing the door rather than the room behind it.
For identification, the diagram and the genuine number are what matter, and a VIN lookup gives you both.
Long-lived vehicles, long supersession chains
Defenders and Discoverys stay on the road for decades, so a part number that was right in 2005 is often two revisions old today. The catalog walks the chain to the number that ships now; ordering a middle link can still find old stock, and that stock is the design the factory moved away from.
Common Land Rover nameplates
These nameplates help you find the right vehicle family. Confirm the exact model, market and production period against the active catalog before quoting a part:
| Model | Production years |
|---|---|
| Land Rover Range Rover | — |
| Land Rover Discovery | — |
| Land Rover Defender | — |
| Land Rover Range Rover Evoque | — |
Frequently asked questions
Do Land Rover and Jaguar share a catalog?
Yes. Jaguar Land Rover publishes parts data for both brands together, reached through its TOPIx portal. On VINsearch, Land Rover and Jaguar each open by VIN on the same login.
What does a Land Rover part number look like?
Current numbers are LR followed by six digits, such as LR079532. Jaguar numbers of the same era run letter, digit, letter and five digits, such as T4A44875.
Is TOPIx the Land Rover parts catalog?
TOPIx is JLR’s portal for technical information, and parts data is reached through it. It is the doorway to the catalog rather than the catalog itself.
Do I need a JLR dealer account?
Not with VINsearch. The Land Rover catalog opens in the browser from a $5 Day Pass, $50/month or $500/year, with the rest of the 53 catalogs on the same login.