---
product_id: 87554265
title: "ACDelco GM Original Equipment RC111 18 P.S.I. Radiator Cap"
brand: "acdelco"
price: "₨827"
currency: SCR
in_stock: true
reviews_count: 5
category: "Ac Delco"
url: https://www.desertcart.sc/products/87554265-acdelco-gm-original-equipment-rc111-18-p-s-i-radiator
store_origin: SC
region: Seychelles
---

# 18 PSI pressure rating Fits most GM models OEM-grade durability ACDelco GM Original Equipment RC111 18 P.S.I. Radiator Cap

**Brand:** acdelco
**Price:** ₨827
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your engine cool, your ride smooth, and your confidence high.

## Quick Answers

- **What is this?** ACDelco GM Original Equipment RC111 18 P.S.I. Radiator Cap by acdelco
- **How much does it cost?** ₨827 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/87554265-acdelco-gm-original-equipment-rc111-18-p-s-i-radiator)

## Best For

- acdelco enthusiasts

## Why This Product

- Trusted acdelco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable OEM Quality:** Built with stainless steel for long-lasting reliability and leak-free performance.
- • **Trusted by Professionals:** Backed by a 4.7-star rating and GM’s original equipment standards.
- • **Seamless GM Compatibility:** Engineered to fit a wide range of GM vehicles for hassle-free installation.
- • **Precision Pressure Control:** Maintains optimal 18 PSI to boost coolant boiling point and engine efficiency.
- • **Enhanced Cooling System Safety:** Keeps your engine safe by sealing and maintaining system pressure under all conditions.

## Overview

The ACDelco GM Original Equipment RC111 Radiator Cap is a precision-engineered, spring-loaded cap designed to maintain 18 PSI pressure in your GM vehicle’s cooling system. Crafted from durable stainless steel, it raises the boiling point of engine coolant, ensuring optimal performance and preventing leaks. Compatible with most GM models, this OEM part guarantees reliable, long-lasting protection and is highly rated by users for maintaining system integrity.

## Description

An ACDelco GM Original Equipment Radiator Cap is a spring loaded cap that seals the radiator filler neck or surge tank, and is a GM-recommended replacement for your vehicle’s original component. It maintains pressure on the cooling system while the engine is operating, which raises the boiling point of the engine coolant. It also replenishes the system with coolant from the expansion tank (if equipped) when the engine cools off. This original equipment radiator cap has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Review: It’s an OEM part for my Chevy Impala 2006 3.5L by GM. It works just fine, it keeps my cooling system pressurized properly, I can feel the hoses get tight. No leaks. Ops check good at this time.
Review: Worked. Cooling system holds pressure. Have be able to ignore this issue ever since.

## Features

- Seal and maintain pressure on the cooling system for vehicle safety
- Raise the boiling point of the engine coolant to maintain efficiency
- Fit most models of GM vehicles for expanded coverage
- Offering the quality, reliability, and durability of GM OE
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000IZ5E1M |
| Brand | ACDelco |
| Customer Reviews | 4.7 4.7 out of 5 stars (450) |
| Date First Available | 7 Aug. 2012 |
| Exterior | Stainless Steel |
| Item Weight | 63.5 g |
| Item model number | RC111 |
| Manufacturer | ACDelco |
| Manufacturer part number | 15293434 |
| OEM Part Number | 15293434 |
| Product Dimensions | 6.35 x 6.1 x 3.81 cm; 63.5 g |

## Product Details

- **Brand:** ACDelco
- **Colour:** Black
- **Exterior finish:** Stainless Steel
- **Item dimensions L x W x H:** 6.4 x 6.1 x 3.8 centimetres
- **Material:** Stainless Steel

## Images

![ACDelco GM Original Equipment RC111 18 P.S.I. Radiator Cap - Image 1](https://m.media-amazon.com/images/I/716nn6T0loL.jpg)

## Questions & Answers

**Q: Does this fit on a 2009 chevrolet impala ss v8 5.3 liter ?**
A: I would go to Advance auto website and look up this item and compare the part number to see if it will. It did fit my v8 2006 impala

**Q: Is this item actually a 18 psi radiator cap?**
A: Yes. This item is a psi radiator cap.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***T on 12 November 2025*

It’s an OEM part for my Chevy Impala 2006 3.5L by GM. It works just fine, it keeps my cooling system pressurized properly, I can feel the hoses get tight. No leaks. Ops check good at this time.

### ⭐⭐⭐⭐⭐ Review
*by P***N on 6 October 2025*

Worked. Cooling system holds pressure. Have be able to ignore this issue ever since.

### ⭐⭐⭐⭐⭐ Review
*by D***O on 1 January 2026*

Perfecto

## Frequently Bought Together

- ACDelco GM Original Equipment RC111 18 P.S.I. Radiator Cap
- Dorman 902-696 Engine Coolant Filler Neck Compatible with Select Models
- MotoRad 511-185 Engine Coolant Thermostat

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-03*