Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models

Perfect replacement for my 94 Silverado K1500. Looks great in my truck. Old one you couldn’t even see the coolant inside of. Great price, seems durable and well sealed. The perfect size and seems like solid plastic. Definitely recommend to anyone looking to replace theirs.

Perfect fit. Was cheaper buying it here than locally from NAPA amd O'Reillys here in Hawaii. Saved me almost $30 dollars. Very happy with fitment and quality.

Love Dorman products. Perfect fit, same gauge plastic as OEM and inlet was right size. New cap is just icing on the cake.

I cannot attest to this products intended use so I can't say if it fits your car's needs or not. I am using this as a reservoir for an onboard shower in my subaru crosstrek. It is built very well and has an irregular shape so it fits eight where i need it to. Very simple desogn means fewer things to go wrong. It has a capacity of roughly 1.5 gallons. Bottom spigot is lined with metal on the inside and the cap has a blow off spout integrated into it. Im very happy with this for my purpose. It is so well built, however, that with a few modifications it could probably be used in many cars's with many purposes. All praise Lord Xenu.

Works and no leaks.

I was a little concerned about fit because it's different from the original that came with my 1989 Chevy Scottsdale pickup even though the product guide said "this part fits your vehicle". However, it did fit exactly. Both the bolt holes at the top and the tab that the bottom slips into lined up correctly. I think that I actually like it better than the original because it's taller and shorter than the original so there is more room between the air intake hose leading to the air cleaner housing. It also has both hot and cold fluid level lines where the original had only a cold level mark. The coolant reservoir that looked more like my original was twice as much money. I'm glad I took a chance on the cheaper part.

Needed to replace the original coolant reservoir on my 1998 OBS Silverado. This was a perfect replacement part. Quality, fitment, price and easy install!!

Works and fits as it should, I used this on a 1997 k3500 truck.

Me parece un excelente producto de repuesto, luce muy bien en mi GMC Sierra, muy buen material y diseño exacto como el original. Lo vale muy bien 👌.

Perfect fit and just as advertised

Great product

Exelente calidad

It came very quick and is as advertised