







⚡ Upgrade your ride’s cooling game—because overheating is so last season!
The labwork Cast Aluminum Coolant Flange Upgrade Kit is a direct replacement for Golf Mk4, Jetta Mk4, and TT 1.8T models from 2000-2005. Crafted from durable cast aluminum, this kit enhances coolant flow through the water pump, improving engine cooling efficiency. It includes all necessary components for a straightforward installation using conventional tools, making it an essential upgrade for maintaining optimal engine performance and preventing overheating.









| Manufacturer | labwork |
| Brand | labwork |
| Item Weight | 1.14 pounds |
| Package Dimensions | 8.27 x 5 x 3.27 inches |
| Manufacturer Part Number | 06A121121C |
S**H
Great price
Theses are great for the price, would buy again
D**C
Amazing for the price
I noticed a small leak of coolant and these units should take care of that. They are much better than the plastic units I will be replacing. They seem well made and very affordable.
A**R
The parts came as promised and were of a good quality and fair price
quality price and performance all that I ask
A**R
Nice quality parts
Nice quality aluminum cast exactly like oem even with part number. Good parts from China to replace the origina German plastic crap that cracked and caused my AudiTT to overheat needing a head gasket replaced.
J**E
Very functional
Product works as described. Overall I am happy and no longer worries about the old plastic pieces
P**N
Doesn’t fit.
Not enough outlet nozzles to do on my 1.8t
A**H
fits well on my 1.8t mk4 golf
very happy with this purchase. did it as a preventative measure before the plastic cracks. took about 2 hrs to install and do a coolant flush. 10/10 would recommend
Trustpilot
2 days ago
2 weeks ago