1AACD00054-Radiator Cap ACDelco RC27
false

Replaces

8

1991 Chevrolet Blazer S10 V6 4.3L 8th Vin Digit Z Radiator Cap ACDelco RC27

AC DELCO Radiator Cap RC27
recommended installation videos
sponsored by trq-logo
$ 29.95
$38.95
23% OFF
$38.95
23% OFF
FREE SAME DAY SHIPPING
AC DELCO
RC27
In Stock

This part doesn’t fit a . Select from parts that fit.

Show parts that fit
Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

If your vehicle isn't listed, search Radiator


Orders must be placed by 2pm ET
1A Auto 1 Year Warranty

Enter your zip code


recommended installation videos
sponsored by trq-logo

Frequently bought together

Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

If your vehicle isn't listed, search Radiator

AC DELCO
RC27
In Stock
Product Reviews
Loading reviews
4.88/ 5.0 8
Basic part, HUGE difference.
Bill
June 11, 2018
Had an overheating issue with my Camaro. Looked online, and the suggestion was to replace the Rad cap. Went to a national retailer, and bought a after market cap. Fitment was loose, and issue was not solved. Went to the dealer, didnt have an AC Delco cap in stock, and was $$$$, and was 3-5 days out. Checked 1a, in stock, cheap as hell, and had it in 2 days! (and didnt pay for express shipping). Problem solved!
Guy
November 21, 2021
Exact fit
Duane
July 18, 2022
Works good I hope you can start including it with the radiator because stick caps dont work on your radiators but together they work great
Tyler
November 23, 2022
Arrived in timely fashion reasonably priced and functions as indicated
Great part
Moises
April 10, 2024
Great Quality!!
Steve
April 23, 2024
Cap fit perfectly...stopped the radiator leak.
Another successful purchase from 1A Auto
Dustin
April 30, 2024
as ordered and fit perfectly in my 1995 GMC Sierra
Perfect fit
Charles
May 24, 2024
Fits perfectly on new radiator.
Customer Q&A
Will the same radiator cap work on a 2.8 engine ?
June 14, 2022
Daryl H
10
Please enter your vehicle's year make and model in the search bar at the top of the page. This will display parts guaranteed to fit your vehicle. Just be sure to verify all of the information shown in the Vehicle Fit tab before ordering.
June 14, 2022
Emma F
Customer service

877-844-3393

Monday - Friday 8:00am - 9:30pm ET
Saturday - Sunday 8:00am - 4:30pm ET

Chevrolet is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Chevrolet or General Motors Company. See all trademarks.
Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

This part doesn’t fit a . Select from parts that fit.

Show parts that fit

Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 1991 Chevrolet Blazer S10 with these options.

Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 1991 Chevrolet Blazer S10 with these options.