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Thread: Aluminium radiator header tank for 300Tdi

  1. #1
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    Aluminium radiator header tank for 300Tdi

    I need to overhaul the cooling system on my '95 Defender, a low coolant alarm and replacement header tank are on the shopping list along with new hoses.

    Has anyone had experience of the aluminium header tanks on Ebay ?

    Seem to be two types. One has a screw on cap with pressure release in 'billet' aluminium (how that word is misused) the other has a conventional looking radiator cap.
    The one with the screw on cap is more expensive by about $40 but is a neater looking design (a couple of rounded edges).

    Aluminium Header Expansion Tank for Land Rover Discovery 200 300 TDi V8 Black | eBay
    Aluminum Coolant Expansion Header Tank For Land Rover Defender 300TDI Black 606280129532 | eBay

    My Defender still has the black plastic header tank which has been there while I've owned it (over 20 years). I like the idea of an aluminium tank as it's unlikely to split, the only issue is you have to remove the cap to check the coolant level.

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  2. #2
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    Low coolant alarm a must have. If your header tank and cooling system is fine, save your money . Saying that if it has a black header tank they have form for cracking. get the opaque one. My opinion.

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    Quote Originally Posted by Bazzle218 View Post
    Low coolant alarm a must have. If your header tank and cooling system is fine, save your money . Saying that if it has a black header tank they have form for cracking. get the opaque one. My opinion.
    I'm aware that the original (black) tanks are known to split hence the question about fitting an aluminium header tank.
    No replies so has nobody used an Ebay header tank ?

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  4. #4
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    alien is offline A Keeper of the TGO Silver Subscriber
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    I’ve been thinking of geting a Allisport header tank with a sight glass and low level alarm for our Puma.
    The 300tdi unit for comparison against your eBay options...
    Land Rover 200 / 300 Tdi / v8 aluminium header tank with sight gauge - AlliSport
    Cheers, Kyle



    The Good Oil.
    When did you last visit?
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    Quote Originally Posted by gromit View Post
    I'm aware that the original (black) tanks are known to split hence the question about fitting an aluminium header tank.
    No replies so has nobody used an Ebay header tank ?

    Colin
    I bought an eBay job a couple weeks ago, one with the funny looking cap, it bolted up ok, the cap doesn't seem the best fit bit doesn't leak, but it does sit higher than the original and the cap pushes slightly into the soundproofing under my bonnet.

    Seems well made but I think the centre of my clutch just tore out (unrelated to the header tank!) So it won't be getting much testing for a bit.

    My main concern would be the cap leaking in time, and also the availability of a replacement one.

    Cheers
    James

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    Quote Originally Posted by shack View Post
    I bought an eBay job a couple weeks ago, one with the funny looking cap, it bolted up ok, the cap doesn't seem the best fit bit doesn't leak, but it does sit higher than the original and the cap pushes slightly into the soundproofing under my bonnet.

    My main concern would be the cap leaking in time, and also the availability of a replacement one.
    Thanks,
    I did wonder about that cap....is the thread the same as the old one ?

    Quote Originally Posted by alien View Post
    I’ve been thinking of geting a Allisport header tank with a sight glass and low level alarm for our Puma.
    The 300tdi unit for comparison against your eBay options...
    Land Rover 200 / 300 Tdi / v8 aluminium header tank with sight gauge - AlliSport
    Twice the price plus freight !

    Looks the business but......


    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  7. #7
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    Quote Originally Posted by gromit View Post
    Thanks,
    I did wonder about that cap....is the thread the same as the old one ?



    Twice the price plus freight !

    Looks the business but......


    Colin
    No, it's stepped more than threaded , it would be difficult to find a replacement I think, but it may last for year's, the actual tank looks pretty good.

    Actually,I should see if the original will screw on, I'll get back too you on that.

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