







🚗 Upgrade your ride’s cooling game with precision-engineered power!
The RASTP Universal 1L Coolant Overflow Tank is a high-performance aluminum radiator reservoir designed for universal fitment. Made from durable 7075 aluminum with TIG welded seams and an anodized finish, it offers superior strength and leak resistance. Featuring a switchable inlet/outlet, toggle level indicator, and magnetic drain plug, it combines functionality with easy maintenance to keep your engine running cooler and longer.










| ASIN | B08F4T9DYN |
| Best Sellers Rank | #279,774 in Automotive ( See Top 100 in Automotive ) #485 in Automotive Replacement Engine Coolant Recovery Kits |
| Capacity | 1 Liters |
| Customer Reviews | 4.5 4.5 out of 5 stars (366) |
| Date First Available | August 3, 2020 |
| Fit Type | Universal |
| Fuel Type | Gasoline |
| Item Weight | 1.37 pounds |
| Manufacturer | RASTP |
| Manufacturer Part Number | RS-OCC037-Black |
| Package Dimensions | 8.19 x 6.22 x 4.02 inches |
| Product Grade | like new |
E**S
Thumbs up
Nicely made great quality
A**Z
If it’s not as much as a factory but better
This works great and holds pressure the fit is universal for every one you will have to buy one more bolt to seat the extra hole
J**S
Looks good
This part looked good and works great. The only problem I had was getting a hoses on the barbed fittings. Took a bit but finally got some 3/8” line to go on.
J**.
coolant
small modification but works fine
C**Y
fit perfect
nice condition
K**E
Very nice little tank.
Did what it was supposed to mount nice looks nice. Get them before they jack the price up.
A**O
Accurately described.
Well constructed and worked great.
S**Y
Radiator Overflow Canister
The canister was well constructed to fit on either side of the radiator. I had to change the fittings to fit on the left side of the radiator. The workmanship was very good and it looks much better than the factory units. Be aware that the canister is smaller than most factory units. I believe it is about one quart volume. I like the indicator on the side that lets you know just how full the unit is without opening the lid. A nice improvement to the engine compartment.
M**E
Picked up a pair of these to keep the sludge out of my engine. They look great, and seem to be leak free as delivered. I will do some modification to these to make them bulletproof. I would ditch the sight glass, because that will be the first place it will leak. Next, I would bond in the fittings permanently, and add a ball valve for draining. Add some stainless scrubber as a filter medium, and this is as good as catch cans that cost 5x as much.
M**Z
Exelente pieza y economico
A**R
Good price, good quality unit. I installed this in my 88 mustang. Looks good, does what it should. No complaints here. Would recommend
D**E
En realidad todo me.gusto solo debería de tener un medio litro más de capacidad.
S**S
Tank is great but the level viewer leaks like crazy
Trustpilot
1 month ago
5 days ago