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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
TD5 Fuel Filter Housing
Hi All,

I've posted before about my fuelling issues that have arisen recently. I have the injector seals to do and have an FPR on the way (trying this all before I resort to the pump), but I'm also considering the fuel filter housing (after finding the LR repair sheet for a leaking air vent in the housing).

Mine doesn't look to bad, but the edges and the body has chunks missing, as well as a few bits miising near the where the filter seal sits.

Is this a housing that's gone porous?

If so, my main question is, what's the difference between the housings that change at VIN 3A?

There's:

WJN000020 - Upto 3A658552
WJN500150 - 3A658552 Onwards

They look identical, but what's the difference and why does one sit around the £80 mark, where the later sits at the £180 mark?

I dont run a water sensor and my VIN (4A) is after they decided to drop the water sensors anyway.

Can I use the cheaper one?
Post #343823 8th Jul 2014 8:24pm
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Nobody know?
Post #343898 9th Jul 2014 7:22am
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appaloosadude



Member Since: 17 Oct 2012
Location: Buckinghamshire
Posts: 630

United Kingdom 2003 Defender 110 Td5 DCPU Havana
I don't know the answer, but will be watching intently, as I believe I have the same jobs to do on mine...
Post #343900 9th Jul 2014 7:34am
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
There was a thread about this recently but I think the outcome was they weren't interchangeable
Post #343904 9th Jul 2014 8:03am
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Hmm ... I've done quite a few searches and found nothing on that! Don't suppose you have a link?

I did fear that outcome, would just be nice to know difference!
Post #343910 9th Jul 2014 8:18am
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Paddie42



Member Since: 24 Apr 2014
Location: Hamphire
Posts: 230

England 2003 Defender 110 Td5 SW Belize Green
From my investigations the WJN500150 doesn't have the water trap sensor. It also appears to fit both Defender and Discovery TD5's.
Post #343918 9th Jul 2014 8:48am
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
It was called fuel filter head part number or something like that (don't know how to put a link up Embarassed ) but it seems I remembered wrong anyway. Littletom who started the thread found out his td5 was fitted with a tdi head so that's why they were different.
Post #343919 9th Jul 2014 8:50am
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
The water sensor is part of the Filter itself, not sure the 'body'/'top' has any sensor kit on it. If the pictures are anything to believe, then even the later 'body' comes with the filter and water sensor in the bottom.

As I mentioned before, I think mine is past the point where they decided not to fit the sensor any more as mine certainly has no wiring for the sensor to plug into!

Even on early TD5's, most people would just stick a new filter on without the sensor anyway as they would often cause more problems than they're worth and the only redundant wiring then is the loom from the vehicle. Nothing on the 'body'?

Confusing! Can't see what difference there is as the change came after the EURO 3 update anyway!
Post #343920 9th Jul 2014 8:51am
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Easiest way is open the topic up, click into the URL bar at the top, ctrl+a, then ctrl+c, then come into the one you're replying to and in the reply box, just hit ctrl+v.

And yes, I have read that one then ... Found that very odd as head only had 1 in, 1 out!
Post #343921 9th Jul 2014 8:54am
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Right, just had a conversation with Justin at Brookwell's and I must say what a friendly chap.

Initially it went down the official lines of WJN500150/WJN000020, but after speaking with him, I questioned the fact they had WJN000030 listed as fitting Defender TD5 1998-2006, so the whole range effectively.

He went off the speak to a colleague and rang me back about 10 minutes later.

He confirmed that the 'head' of the housing's were all the same including WJN000020 - WJN500150 - WJN000030, the only difference being the water sensor ... Why this adds over £150 to the price tag I dont know.

Thus I have ordered WJN000030 (the only one they stock) which is the Disco II filter assembly, but the same assembly throughout the TD5 Disco II production. I personally believe WJN000020 and WJN000030 are the same, second being the Disco II part number.

The WJN500150 is the same head, same filter body, but different water sensor and plug.

I will see what turns up and post my findings. Will also strip the new one down to check the valves and internals are the same!

If I could afford to order the WJN500150 as well I would have, but after the past 3-4 months of very big bills for the 110, I'm just about wiped out, so I cant afford do do a comparison! Technically though, my old one should be WJN500150, so we shall see!
Post #344000 9th Jul 2014 1:31pm
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pj2106



Member Since: 20 Dec 2012
Location: Huntingdon AKA The Shire
Posts: 1500

United Kingdom 2008 Defender 110 Puma 2.4 USW Stornoway Grey
I have a new one sitting in the shed if your interested never got round to fitting it? 2008 110 2.4 XS Utility (Hagrid)
2002 90 TD5 Hardtop (Sully) Sold
1998 300TDi D1 (Billy) Sold
Post #344005 9th Jul 2014 2:04pm
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Which P/N?
Post #344011 9th Jul 2014 2:22pm
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pj2106



Member Since: 20 Dec 2012
Location: Huntingdon AKA The Shire
Posts: 1500

United Kingdom 2008 Defender 110 Puma 2.4 USW Stornoway Grey
No idea part no but pics below

Click image to enlarge



Click image to enlarge



Click image to enlarge
 2008 110 2.4 XS Utility (Hagrid)
2002 90 TD5 Hardtop (Sully) Sold
1998 300TDi D1 (Billy) Sold
Post #344070 9th Jul 2014 6:17pm
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taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Shoot me a PM with how much you'd want as I'd be very interested.

I have the WJN000030 coming anyway, but always good to have a spare and I want to try and work out what's what with them, so an ideal one to strip down and compare (hoping it's a WJN000020, so I can compare with the WJN000030 I have coming and the WJN500150 which theoretically should be the knackered one)
Post #344114 9th Jul 2014 8:26pm
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pj2106



Member Since: 20 Dec 2012
Location: Huntingdon AKA The Shire
Posts: 1500

United Kingdom 2008 Defender 110 Puma 2.4 USW Stornoway Grey
Pm sent 2008 110 2.4 XS Utility (Hagrid)
2002 90 TD5 Hardtop (Sully) Sold
1998 300TDi D1 (Billy) Sold
Post #344125 9th Jul 2014 8:57pm
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