
A cooler mounted out in the open has a spinning fan and a block of soft aluminium fins with nothing in front of them. This is the factory guard for that situation. It stops stones, tools and fingers reaching the fan and the fins, which keeps the core doing its job and keeps the installation safe to work around. Kits are made for TT07, TT11 and TT16 rail coolers only. Pick your cooler size below and it is on its way.
Ways to buy:
| SKU | Fits | What it does |
|---|---|---|
| ILLEGAKTT07GT | TT07 Rail | Guards the fan and the fin block on an exposed installation |
| ILLEGAKTT11GT | TT11 Rail | Guards the fan and the fin block on an exposed installation |
| ILLEGAKTT16GT | TT16 Rail | Guards the fan and the fin block on an exposed installation |
Housing kits are size specific. A TT11 kit will not fit a TT07 or a TT16.
| Parameter | Value |
|---|---|
| Brand | ASA Hydraulik, made in Austria |
| Product | Protection housing kit for TT Rail air blast oil coolers |
| Purpose | Guards the fan and the fin block on exposed installations. Stops stones, tools and fingers reaching the fan and fins. |
| Sizes available | TT07, TT11 and TT16 rail only |
| Larger sizes | No protection housing kit is made above TT16 |
| Quantity required | One kit per cooler |
| Fitment | Size specific. Match the kit to the cooler size exactly. |
A guard is a restriction, so treat it as part of the airflow design rather than an afterthought bolted on at the end. Anything you put in front of a core costs you some pressure, and the cost goes up sharply as the guard gets closer to the fins or as its mesh loads up with dust and chaff. The factory housing is designed with that clearance already in it, which is exactly why a home-made plate screwed hard against the fins is usually worse than no guard at all.
What you must not do is fit a housing and then also box the cooler in. A cooler needs a genuinely clear path on both sides: an open intake and somewhere for the hot discharge to go, with roughly a fan diameter of free space on the discharge side. Put a guard on the front, a wall behind, and a lid over the top, and the fan just circulates its own hot exhaust.
The air-on temperature climbs, the oil temperature climbs with it, and nothing about the installation looks wrong. The other thing a housing changes is cleaning. Debris now collects on the guard and in the gap behind it, so build the housing into your service routine: pull it often enough to see the fins, and clean the core with low pressure compressed air blown from the outlet side back towards the intake, so the dirt leaves the way it came in.
Never take a pressure washer to a fin block. You will fold the fins flat, seal the face, and lose more capacity in thirty seconds than a season of dust would have cost you. Last point: check the housing fixings after the first fifty hours on anything mobile, because a loose guard panel will find the fan.
An exposed cooler usually needs all three: the housing, the feet, and the connector kit that gives it ports.
TT Rail Connector KitsFoot Mounting KitsTemperature SwitchesReplacement Fan Kits
Need help choosing? Call 1300 146 737 or email sales@mhfgc.com.au - real technicians, real answers.