it is plastic webb cylinder that goes in the filter element and clicks in bottom or the top of the oil filter housing.
in this posting it is# 22 on the droving. engine is BMW petrol but the cage is very similar.
https://www.fullfatrr.com/forum/post455937.html 2012 TDV8 Black Edition
2000 Disco. TD5
1975 series III

I apologise for the poor quality of this picture, but it is the only one I have taken of the inside of the filter bowl.
You can just make out the central tube that the filter slides over if you expand the picture a bit.
I need some photography lessons from Nino.
Mike.

Cheers all
I’ll take some piccies to add to this wonderful forum  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Baltic Blue wrote:

Rob,
The inside of the filter housing has a spring tensioner that pushes against the filter, and the Mahle fits perfectly .

Mike.

Mike
The Mahle filter. Does it have a raised bit on both ends or just one? If just one, does that end go down or up?
 Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Rob,
99% sure it’s raised both ends, but 100 % raised at top end.

Thanks Mike. Picture shows it at at bottom but will order one and find out  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Rob,
Give me 5 minutes, I have got one in the garage.

Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Identical both ends, so either way up 👍👍

 Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

since nino nino mentioned the Mann super dooper oil filter back in 2019, I have done a 5W30 C1 oil change and Mann oil filter every year, first one back in 2020, and about to do my sixth one in March, they have always been under £18 quid, and for me a much better filter than some thin paper cardboard type that others sell.

Mann part number is HU 718/5x