




🔥 Upgrade your ride with confidence—cool smarter, drive stronger! ⚙️
The Dorman 603-253 Pressurized Coolant Reservoir is a high-quality, direct replacement part designed for select Audi, Seat, and Volkswagen models. Engineered to match OEM fit and function, it withstands intense underhood heat and vibration, ensuring durability and reliability. Backed by a century of aftermarket expertise, this reservoir guarantees seamless installation and precise compatibility when verified with the vehicle-specific garage tool.





| ASIN | B00NF1Q7TY |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #273,551 in Automotive ( See Top 100 in Automotive ) #452 in Automotive Replacement Engine Coolant Recovery Kits |
| Customer Reviews | 3.9 3.9 out of 5 stars (483) |
| Date First Available | September 8, 2014 |
| Fit Type | Universal |
| Global Trade Identification Number | 00019495455752 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 14.2 ounces |
| Item model number | 603-253 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 603-253 |
| Model | 603-253 |
| OEM Part Number | 1K0121407A; 21407K; 21407K-T; DAKG-21407K; EPK0030; EPT0030; FRT1513C; SK603253; 1K0121407A; 1K0121407F |
| Position | Center |
| Product Dimensions | 7.8 x 7.8 x 8.4 inches |
| Product Grade | Replacement Part |
| UPC | 019495455752 |
A**R
Great part! Easy swap.
Perfect fit, easy swap from OEM to this. Happy with it so far, not cracked and no leaks.
E**H
Great Quality
Great quality and fits my 2011 Jetta. So far so good after installation.
M**E
BAD FIT!!
The electrical sensor pins in this unit are wrong. The outside of the connector is the correct shape. the pins are wrong. It will not install.
M**O
2012 Tiguan
Perfect fit!
N**A
Perfect replacement
I just recently bought one of these a month and a half ago for my TDI Passat fit perfect no issues. I also purchased another one almost two years ago for my Jetta.. that also fit perfectly and has given me no issues since the install.. would definitely recommend this.. one of my OE hose nipples broke off of the 07 Jetta I wish I knew how cheap and easy this was to replace. I would have replaced it before it broke..
H**T
Easy way to save money with some DIY-Fu
It fits, it feels the same as the original for better and worse. Installation is straight forward and numerous step by steps out on Youtube. Tool requirements are minimal but be sure you have something that can reach. Be prepared to deal with the coolant and have the right stuff on hand to top the system off. Recommend just getting the pre-mixed certified stuff.
J**H
Direct fit, OEM Quality!
The plastic bung for the coolant hose on my original tank snapped, and all the coolant spilled and evaporated off. This was the perfect fit to replace it, the hooks for the wire harness lined right up, along with the taps and the mounting feet. Sturdy construction and the perfect OEM replacement for my 2010 VW. You want a quality replacement that’s also inexpensive? This is it. 10/10
A**R
The neck on reservoir is too long for the sensor to meet pins. must remove a half inch off the neck.
The quality and fit on my 2012 VW cc is a Perfect fit. The only issue is where the sensor goes, the male end that's on the replacement reservoir is too long. the pins won't meet. The fix is / cut off a half inch of the plastic neck where the sensor goes. That will allow the sensor to go further down and meet the sensor pins. It's easy and it gets rid of the idiot light on dash. yes, i would recommend this item.
A**H
as good as original product.
L**R
El producto cumplió casi todas las especificaciones en diseño, únicamente el arnés del sensor no entró completamente, sin embargo si funcionó
J**.
no funciono la parte electrica .
R**A
This worked perfect
C**L
Great! Good price too!
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