Welcome to the club...

Ran fatty offroader for years without any, didn't seem to make any difference and I thought it helped with under bonnet venting...

You could use a generic seal, just put a "column" of blue tack along the top edge, close the bonnet and it will flatten to the height you require, well add a few mm to get some squish....

Or message Robin at Duckworths, our site sponser, he will know from your vin and give you a good discount with free postage (hopefully to Ireland !!) Pete
I now have permission from the boss to use Y.O.L.O. Enjoy life
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Thanks Haylands, appreciate the reply.

I did think of some generic type of sealing strip but wanted to see what other thought...

I have seen water top the rim into the battery compartment, infact, it had dripped directly on to the terminal.

Also when opening the bonnet, water makes its way into the compartment, is this "normal" ?

If anyone has a link to a generic seal that might do the trick, it would be much appreciated

Thanks once again

I think it's more for sound insulation than any kind of engine protection from water unless you are wading through deep water and have a bow wave washing over the bonnet. Mine are perished and falling apart. 2012 TDV8 Vogue (L322)

A quick search online of CJE00052 suggested it's a 30cm length. CJE00053 states 100cm, however the parts catalogue shows the part you have is defined by chassis number:

 2015 Range Rover Autobiography 4.4 SDV8