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The Dorman 603-125 Front Engine Coolant Reservoir is a direct replacement part designed specifically for select Chevrolet and GMC models. Engineered for seamless installation, this durable reservoir is built to withstand high temperatures and vibrations, ensuring long-lasting performance. With over 100 years of automotive aftermarket experience, Dorman guarantees a trustworthy solution for your vehicle's cooling system needs.
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | 603-125 |
| Item Weight | 4.62 pounds |
| Product Dimensions | 11 x 5 x 3.15 inches |
| Country of Origin | China |
| Item model number | 603-125 |
| Exterior | Machined |
| Manufacturer Part Number | 603-125 |
| OEM Part Number | DAKG-808714; FRT1215C; RC98; SK603125; 15075118; 15085725; 15808714; 19353729 |
| Hollander Number | 671-214X |
E**Z
Exact fit for 2004 GMC Sierra 2500 Duramax
Ordered this as a replacement for my 2004 GMC Sierra 2500 Duramax. It was an exact fit and the tank is made of heavy sturdy plastic so it seems very good quality for the price. Took about 20-30 mins to replace.
A**D
Like oem quality
Appears to be as the oem. There are some minor differences between this one and my original. This did not prove to be an issue. Everything seems to work exceptionally well and should last for many miles.
J**E
Quality
Fit perfect! Can actually see the coolant level again.
K**N
not bad
It sat right in place with no problems.
R**N
Makes it look spiffy
My wife asked if the other one was bad. I said no. She said why did you spend money on it.I said look at it.She did not get it. Its one of those, if I have to explain it to you, you won't understand.
D**G
Perfect
Just like oem, packing was a little poor though
C**W
Looks to be direct replacement.
This was what I was looking for, Just received it today. After comparing to my other coolant tank itlooks to be A direct replacement heavy duty and the overflow hose is right on, other tank reviewsshowed cheap overflow hose this one is the right one. I'm very satisfied just by looking at it have notinstalled it yet. I will follow up after installation and in service for a while.
B**T
duramax coolant reservoir
fit perfectly. same as original. now i can see my coolant level.
J**S
Duramax coolant tank
Basically oem looks great
C**T
nice product
same as factory
J**S
Perfect Fit
Container lined up perfectly and all fittings aligned.
P**.
good fit
fit where original came out with no modifications needed
I**.
Looks like OEM
Fits great and looks good just like OEM, however the low coolant message always comes on when engine is started and the coolant level is fine, suspect a faulty low coolant sensor in coolant bottle
Trustpilot
1 week ago
1 week ago