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Alloy Tanks

Designed & engineered here in East Sussex.

Instructions: Like most car parts, none of these products come with fitting instructions. Fitment would depend on your individual vehicle system.

Custom Tanks: We can only supply products exactly as they are detailed and photographed in the product description; unfortunately we are unable to produce an individual tank to a customers' own designs - our tanks are very competitively priced for such high quality items because we produce them on tooling on short production runs, rather than one at a time. Many previous customers have found it significantly more cost effective for them to have their machine shop modify one of our existing designs than to commission a complete tank elsewhere.

Motoring Press Reviews:
Land Rover International: "Very well made in aircraft polished and brushed alloy, I've just fitted one of these babies to my...
Max Power: "RatSport's range of tuning parts are awesome and have the build quality to match. This catch tank comes complete with...
Practical Classics: "RatSport has released this light and efficient tank. Its got a removeable plug with a powerful ceramic magnet on the...
Retro Ford: "RatSport has a wealth of parts on offer catering for all your retro car needs, although the firm is best known for its range of georgeous expansion and catch tanks...
Classic Car Weekly: "If you are after an affordable aftermarket catch tank for your car, RatSport is the place to go. Its latest...
Mini World: "RatSport sells this neat little 800ml breather tank. It has a level indicator and is 9" tall including breather filter. Available in highly...
The Austin Healey Magazine: "I researched on the internet to learn about tank alternatives. A clear favourite emerged, namely a polished...
Read all reviews in full

(Code: Tank Info)
38.40
Alloy General Purpose TankUsefully employed as washer fluid, intercooler tank etc

Lightweight polished alloy
Height excluding cap & neck 95mm
Height including cap & neck 114mm
Width 220mm
Depth 110mm
Capacity 1L
Weighs 710 gram
Base entry/exit design, grommeted to 10mm internal diameter
Integral mounting bracket
Supplied with screw cap

(Code: 844)
42.00
Alloy General Purpose Tank Large

Usefully employed as washer fluid, intercooler tank etc

Lightweight polished alloy
Height excluding cap & neck 230mm
Height including cap & neck 249mm
Width 90mm
Depth 100mm
Capacity 1.75L
Weighs 820 gram
Bottom entry/exit design, grommeted to 10mm internal diameter
Integral mounting bracket
Supplied with screw cap

We have seen also this tank usefully employed by our customers as an intercooler and windscreen washer tank.

(Code: 844/L)
44.99
Alloy Power Steering Fluid Reservoir Tank

Lightweight polished alloy

This is an alloy version of the plastic tank fitted to the Land Rover Discovery.

It is of universal application and ideal for kitcars or to upgrade a standard plastic tank
Internally baffled to reduce foaming in motorsport/off-road applications
Measures 165mm tall (including cap and base pipes), diameter 90mm
1 x 12mm & 1 x 16mm inlet/outlet pipes,
Capacity 0.5L
Weighs 860 gram
Supplied with mounting bracket & with screw cap

(Code: PST)
52.12
Alloy Circular Radiator Expansion Tank Kit
  • Manufactured from aircraft grade alloy
  • 12mm OD (1/2") screw in barbed alloy pipe stubs
  • Machined anodised top mounted cap and bottom drain plug
  • All engines expel coolant when it gets hot, with a recovery tank in the system the expelled fluid is drawn back in when the motor cools down
  • Suitable for fitment to vehicles without a radiator expansion tank or as a replacement for an existing version - ideal if you are building a cooling system from scratch, or to replace the standard plastic header tank
  • Also increase overall coolant capacity - often required by tuned engines
  • Kit is also supplied complete with hose clips and 1 meter 12mm ID (1/2") hose & fitting bracket
  • This tank is beautifully made from polished alloy to enhance under bonnet appearance

Choice of sizes available

(Code: 277Small)
53.00
Alloy Radiator Header & Breather Tank (Pressure Cap Type) CylindricalThis tank is designed for vehicles which do not have a pressure cap on the radiator, or require a pressure cap on the expansion tank. (If you do have a pressure cap on the radiator and want to fit this breather tank then you would need to replace it with a valveless cap (see radiator caps) or remove the valve from your current cap)
Unlike an expansion tank (which can be mounted anywhere) a breather tank must be mounted at the highest point of the cooling system to operate efficiently.
Prevents air locks and leaves room for expansion.

Tank is configured with twin inlets to suit some motorsport applications. If only one inlet is to be used then either block off the spare one, or use a T-Piece for an ultra-neat installation
(Code: 687)
58.00
Alloy Radiator Expansion Header Tank (Pressure Cap Type) 1.75LThese tanks were produced as a small run for a UK sports car manufacturer currently in receivership, to their pattern.
We have a few left. If you can use (or cut off) the mounting brackets then this is a superbly produced tank at a budget price. Doubtless with some imagination it could be used as a tank for a variety of purposes - power steering reservoir, washer tank etc.

Height 257mm, diameter 100mm, overflow pipe thread 8mm, input stub pipe outside diameter 10mm, bottom stub pipe outside diameter 20mm, capacity approx 1.75L. Weight 552gram

Polished alloy, takes standard size (ie UK, European, American but not  "mini" Japanese) twist-off pressure cap (not supplied).
If cap is required see radiator cap section.
(Code: 894)
59.95
Oil Catch Tank Breather Equipped
Capacity 800ml. Unit measures 230 mm (9") tall (including filter) by 75mm (3") diameter, 12mm (1/2") pipe size.
Top mounted chrome housed filter for fast oil mist condensation
Oil level indicator
Bottom drain
No more oil-catch problems!
The tank is fitted with twin inputs so it will suit V configurations and twin cams as well as standard inline engine configurations .
If only one inlet is to be used then either block off the spare one with a blanking plug or T-Piece.
Polished lightweight alloy (296 gram including breather)


Beautifully made oil catch can - will enhance under bonnet appearance - this tank is mirror-finish polished alloy, please do not confuse with cheap heavy chrome imitations.


Click here for further details, installation photos, press reports etc
(Code: 45)
61.22
Slimline Oil Catch TankPolished alloy 1L oil catch tank kit.
Fitted with top mounted twin inlets, sight glass & magnetic drain plug.
Supplied with 100cm braided PVC hose & 4 hoseclips (additional hose can be purchased below if required)
Integral mounting clamp
Kit supplied with both 12mm OD (1/2") and 15mm OD (5/8") screw in barbed alloy pipe stubs, kit also includes blanking plug for use if only one inlet is required.
Capacity 1L
The slimline design of this tank means it will often fit available space where other tanks wont.
193mm high, 130mm wide, 53mm deep excluding pipework, 72mm deep including pipework. Weighs 490 gram

Click here for further details, installation photos
(Code: 887)
75.40
Rectangular Alloy Oil Catch Tank KitLarge rectangular oil catch tank kit
Capacity 1.1L. Unit measures 225mm tall by 80mm wide by 65mm deep.
Tank and bracket combined weight 1054gram
Fitted with twin top mounted inlets, bottom drain outlet, sight glass, breather stub & top screwed cap
Kit supplied with both 12mm OD (1/2") and 15mm OD (5/8") screw in barbed alloy pipe stubs
Pipe stubs are rotateable to enable angled connection for convenience of plumbing
Supplied complete with hose clips, mounting bracket, and 1 metre hose.
(Code: 698)
80.82
Stainless Radiator Expansion Tank (Long Thin Type)
  • Manufactured from 304 non magnetic highly polished stainless, 100% tig welded
  • Choice 3 sizes:
    43cm (17") length, 5cm (2") diameter
    38cm (15") length, 5cm (2") diameter
    33cm (13") length, 5cm (2") diameter
  • Top mounted stainless machined cap
  • All engines expel coolant when it gets hot, with a recovery tank in the system the expelled fluid is drawn back in when the motor cools down
  • Two 6mm outside diameter pipes emerge from the bottom of the tank, one feeding the tank from the radiator, the other passing to the top of the tank to let air in and out.
  • Suitable for fitment to vehicles without a radiator expansion tank or as a replacement for an existing version - ideal if you are building a cooling system from scratch, or to replace the standard plastic header tank
  • Also increase overall coolant capacity - often required by tuned engines
  • Supplied complete with fitting hardware & instructions
  • This tank is beautifully made from mirror-finish stainless steel to enhance under bonnet appearance

    click here for more photos, fitted photos, and fitting instructions
(Code: 123)
82.80
Alloy Radiator Header & Breather Tank (Pressure Cap Type) RectangularLightweight (630gram) polished alloy
Height excluding cap & neck 170mm
Height including cap & neck 195mm
Width excluding stub pipe 100mm
Supplied with choice of pipes 12mm O/D and 15mm O/D
Depth 150mm
Capacity 2L
Integral mounting bracket
Takes "mini" Japanese/motorbike size cap (32mm ID neck)
Supplied with 1.3bar butterfly twist cap as part of kit (additional caps available if required)
(Code: 843)
89.00
Fuel Swirl / Surge PotPrevents misfiring and fuel starvation/fuel surge during hard cornering & braking by supplying a constant fuel flow to the engine (and prevents damage to fuel pump from running dry).

Capacity 2L
Height 180mm (excluding stub pipe)
Diameter 110mm
Mounting Plate 136mm x 136mm
Length of stub pipes 30mm
Outside Diameter 3 x stub pipe 8mm (5/16") and 1 x stub pipe 13mm (1/2")
Beautifully made mirror polished lightweight (900g) alloy tank

A typical configuration would be:
Top pipe - Return to fuel reservoir
Third pipe - Low pressure pump in
Second pipe - Return from fuel rail or regulator
Bottom pipe - Pump
Block off any pipes not required
(Code: 685)
93.11
Large Alloy Oil Catch TankLarge polished alloy oil catch tank kit.
Fitted with top mounted twin inlets & sight glass.
Integral mounting bracket
Supplied with 100cm braided PVC hose & 4 hoseclips (additional hose can be purchased if required).
Kit supplied with both 12mm OD (1/2") and 15mm OD (5/8") screw in barbed alloy pipe stubs, kit also includes blanking plug for use if only one inlet is required.
Capacity 2L
Height 200mm, diameter 120mm, weight 472 gram
(Code: 846)
101.10
Large Alloy Oil Catch Tank With BreatherLarge spun alloy oil catch tank kit.
Fitted with top mounted twin inlets, stainless breather filter, sight glass, integral rear mounting bracket.
Supplied with 100cm braided PVC hose & 4 hoseclips (additional hose can be purchased if required)
Kit supplied with both 12mm OD (1/2") and 15mm OD (5/8") screw in barbed alloy pipe stubs, kit also includes blanking plug for use if only one inlet is required.
Capacity 2L
Overall height (including top mounted filter) 234mm, diameter 120mm, 526 gram.
(Code: 501)
 
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