ACDelco GM Original Equipment RC115 20 P.S.I. Radiator Cap

$ 11.15

Score By Feature

Based on 224 ratings

Packaging

9.10

Giftable

9.19

Customer service

8.78

Satisfaction

8.91

OveReview Final Score

How Our Score Is Calculated

Product Description

For the safety of the vehicle, the cooling system must be sealed and maintained at a constant pressure

Ensure that the boiling point of the engine coolant is raised in order to ensure

Designed to fit most GM models for a wide range of

Replace the original factory part of your GM vehicle with a GM-recommended replacement part

Our standard of quality, reliability, and durability extends to all of our products

Questions & Answers

There is an oring between this tank cap and the tank itself, right?

There is a cap that screws onto top of the coolant reservoir, or overflow tank, as it is often called

It will fit a 2013 Chevrolet 3500HD with a 6 cylinder engine. Would you please tell me how many duramax you have?

Six out of seven times is yes. I'm driving a 6L Duramax

Selected User Reviews For ACDelco GM Original Equipment RC115 20 P.S.I. Radiator Cap

My duramax was replaced with an OEM replacement

5/5

The old cap started to hunk up and looked nasty. This cap replaced it. The matching factory cap on my 2011 Silverado duramax is excellent.

Eli McKnight

| Feb 26, 2021

It's all about the I bought 2 different radiator caps, but neither of them fit properly

5/5

This one works great and I have not encountered a single The cap you need to buy is this one!.

Carl ALLAN

| Jan 03, 2021

I like it

5/5

It fits perfectly. This is the only radiator cap you will ever need for your Duramax! installing an aftermarket product and it broke the day I did.

Oakley Clayton

| Feb 24, 2021

This 2010 Chevrolet Camaro V6 fits like it came out of the It may be more cost-effective to buy this at autozone instead

5/5

This 2010 Chevrolet Camaro V6 fits like it came out of the Rather than buying the knock off from autozone, we recommend you buy this As opposed to those from auto zone, the ones from auto zone lack the lip that meets the radiator to prevent the cap from being overtightened. Also, the part that plugs into the radiator on this cap swivels, while the autzone one does not. The vents on this one are more numerous as well.

Philip Ross

| Oct 02, 2020

Part number is correct

3/5

Despite its short inside part, it was not the right part for my 2011 Buick Enclave. It failed to seal properly and was not a part I would recommend. It doesn't seem like it was a Buick original part.

Selena Jensen

| Jun 15, 2021

Good to look at and to use

5/5

Replacement of the original equipment manufacturer. It seems to be a good quality product, perfect fit.

Cynthia Grimes

| Feb 07, 2021

A very good piece of writing

4/5

I greatly appreciate the work you have done.

Skyler Snyder

| Jul 17, 2021

For a direct fit, the pressure and style must be just right

5/5

Replacement of original equipment quality cap that had pieces of the body stuck in the bottle once it separated from the cap.

Princess Burch

| Sep 16, 2020