Defender Td5 header tank

(4 customer reviews)

£130.00£253.00 ex. vat

SKU: AS40 Category: Fits: Defender TD5

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Alloy Header Tank for Defender Td5

British designed and built and supplied with our lifetime warranty*!

Direct replacement for original plastic item that is prone to split

Constructed using High spec lightweight non-corrosive alloy

Uses original pressure release screw cap Direct fit with no modifications required

TIG welded by hand Ideal for motorsport, overland or just to improve the look of your vehicles engine bay

*lifetime warranty excludes cap

Additional information

Weight 25 lbs

Model / Series




Standard product, With sight gauge, With sight gauge and float level switch


Silver / Plain, Black

4 reviews for Defender Td5 header tank

  1. Bjoern

    Another great Allisport product! The processing quality of this product is excellent! Great work! Thanks for that!
    While the ability to see the level through the sight glass provides some comfort, the sensor (which I’ve connected with an additional red LED in the cockpit) gives me added security when it comes to the heart of the vehicle. Especially during my extended travels, I appreciate that!
    Thanks for this great accessory!

  2. Michael HANDS (verified owner)

    Fitted it this week. Looks great and much easier to see level of coolant. Was simple to fit, just remove one bolt and two hose.

  3. Michael HANDS (verified owner)

    So much better than the plastic original. Easy to see coolant level and looks great.

  4. Taylor Thorne

    So much better than the cloudy, plastic original! Using the sight glass, I can always see the coolant level. Connecting the float valve switch is a ‘snap’ and a great added piece of mind on those long road trips. Top quality as usual.

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AlliSport strive to produce the highest quality products designed to withstand many years of use and we are proud to stand behind these products. However, we manufacture many products and if you make enough of anything, a limited number of problems may be expected. It is how we deal with a problem that is important!

Effective January 2016 onwards, if your product fails due to a manufacturing defect we will repair or replace it without charge, at our discretion. Only original, unaltered and unmodified materials and workmanship are covered by this policy.

This warranty does not cover damage caused by accident, improper care, negligence, normal wear and tear, or the natural breakdown of materials over extended time and use.

Damage not covered under warranty may be repaired for a reasonable rate and a fee will be charged for return shipping.

The products eligible for warranty are covered to the original owner, for the lifetime of the product.  Unfortunately, this does not mean your lifetime. Your AlliSport® intercooler may not survive to the ripe old age of 70.

(But we have heard from happy customers whose well-loved and cared for 1999 products are still going strong!)

For warranty evaluation, your product must be returned directly to AlliSport Ltd, Aubrey’s Farm, Bromesberrow Estate, Ledbury, Herefordshire, HR8 1RZ, UK.

All shipping for warranty must be pre-paid and insured and accompanied by reference to the original invoice. We cannot be liable for lost or damaged in-bound packages.

Not all AlliSport products are covered by the lifetime warranty, please check the warranty tab on the product detail page for further info.

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