SKU: 22160713326

COOLANT EXPANSION TANK, ELISE/EXIGE, OEM LOCATION

Sale price$137.67 Regular price$152.97
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Description

COOLANT EXPANSION TANK, ELISE/EXIGE, OEM LOCATIONThe Radium remote mounted coolant header tank is commonly required for custom Lotus applications such as engine swaps, turbocharger kits, etc. where the OEM expansion tank is no longer in an ideal location. The main tank is a 2 piece design constructed of CNC 6061 billet aluminum, as shown below. The two halves are bolted together along with a CNC billet aluminum cap receiver which mates to any standard 32mm "Type A" style pressure cap. Coolant header

The Radium remote mounted coolant header tank is commonly required for custom Lotus applications such as engine swaps, turbocharger kits, etc. where the OEM expansion tank is no longer in an ideal location.

The main tank is a 2-piece design constructed of CNC 6061 billet aluminum, as shown below. The two halves are bolted together along with a CNC billet aluminum cap receiver which mates to any standard 32mm "Type-A" style pressure cap.

Coolant header tanks are necessary for applications that utilize a low mounted radiator, such as a V-Mount, for proper air bleeding.

The Radium Engineering tank also has an internal swirl feature, as shown below. Hot pressurized coolant from the cylinder head is sent into the vortex chamber's inlet tangentially and accelerated to a high rate of rotation. This is an old hot rod trick to help aid in deaerating the system.


The Radium Coolant Expansion Swirl Tank features three ports that include -6AN male adapter fittings (not tapered pipe threads) for a positive seal. The lower ports are machined with 10AN ORB threads. For a list of other 10AN ORB adapter fittings that can be used, go HERE. The side port is machined with 6AN ORB threads. For a list of other 6AN ORB adapter fittings that can be used.
Includes:
-Billet Aluminum Coolant Tank Anodized Black
-Aluminum 6AN Male Adapter Fittings Anodized Black
-Nickel Plated Sight Tube Fittings
-Billet Aluminum 32mm Pressure Cap Receiver
-Billet Aluminum Pressure Bleed Nipple
-Laser Cut Aluminum Firewall Mounting Bracket Powder Coated Black
-Aluminum and Stainless Steel Mounting Hardware

Options:
Pressure Caps
The optional Radium pressure caps (sold separately) allow the user to select a range of pressure. The purpose of a high pressure cap is to increase the boiling point in the cooling system providing improved cooling efficiency. Each cap is manufactured from stainless steel with a race proven high pressure valve. This is something to consider when tracking the vehicle in extreme conditions.

The OEM Lotus pressure cap is 1.1 Bar.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22160713326

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D Ritchie
Cuba, US
★★★★★ 5
Great drawer organizers
Size: 21 Pack, Color: Clear, Size: 21 Pack, Color: Clear
Comes with grip pads for each tray. No sliding around in the drawer. Perfect sizes and ways to use. Filled 4 kitchen drawers and still extra pieces for a 5th drawer. Great for organizing craft room or anywhere. Each tray came separately bagged so no scratches. For clear plastic, seems very durable. Would buy again.
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Reviewed in the United States on April 20, 2026
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Mooncrest717
Phoenix, US
★★★★★ 4
Good quality organization
Size: 6 Pack, Color: Clear
I liked the quality and the flexibility of organizing.
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Reviewed in the United States on September 22, 2025
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N. Nugent
Birmingham, US
★★★★★ 5
Just what I needed for sorting my LEGO builds!
Size: 6 Pack, Color: Clear
The different sizes are perfect for sorting assorted LEGO pieces! Easy to store and stackable when not in use. Putting on the little pads on the bottom can be a bit tricky, so take your time with it! These thick plastic trays are an AWESOME value for what you get! You get (2) sets for double the storage capacity! Very durable and crystal clear appearance! The little pads on the bottom keep these little trays in place so they don't slide around. Very satisfied with this purchase!
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Reviewed in the United States on May 1, 2026
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Catabbate
Bozeman, US
★★★★★ 5
Love These for Organizing Drawers
Size: 8 Pack, Color: Clear
I love these drawer organizers! The sizes vary so you can configure them in multiple ways. The clear material is nice, and the non-slip feet work well to keep them in place. So far, they seem durable and look really nice.
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Reviewed in the United States on May 1, 2026
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Sweet Pea
Dallas, US
★★★★★ 5
Quality organizer
Size: 8 Pack, Color: Clear
Sturdy plastic. Serves the purpose well. They help keep my drawers organized.
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Reviewed in the United States on May 25, 2026

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