---
product_id: 256365357
title: "ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap"
brand: "acdelco"
price: "₨23"
currency: SCR
in_stock: false
reviews_count: 1
url: https://www.desertcart.sc/products/256365357-acdelco-gm-original-equipment-rc27-15-p-s-i-radiator
store_origin: SC
region: Seychelles
---

# 15 P.S.I. pressure rating Fits most GM models Premium OEM quality seal ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap

**Brand:** acdelco
**Price:** ₨23
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Lock in peak engine performance with the trusted GM radiator cap!

## Quick Answers

- **What is this?** ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap by acdelco
- **How much does it cost?** ₨23 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/256365357-acdelco-gm-original-equipment-rc27-15-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 Machined Exterior:** Engineered for long-lasting performance and corrosion resistance
- • **Precision Pressure Control:** Maintains optimal 15 P.S.I. to prevent overheating and boost engine efficiency
- • **Universal GM Compatibility:** Seamlessly fits a wide range of GM vehicles for maximum coverage and convenience
- • **Enhanced Cooling System Seal:** Ensures a tight, reliable seal to keep your engine running cool under pressure
- • **Professional Grade Replacement:** OEM-quality part trusted by mechanics and enthusiasts alike

## Overview

The ACDelco GM Original Equipment RC27 Radiator Cap is a precision-engineered, 15 P.S.I. pressure-rated component designed to fit most GM vehicles. Featuring a durable machined exterior and OEM-quality sealing, it ensures optimal cooling system performance and reliable engine temperature control.

## Description

Full description not available

## Features

- Fit most models of gm vehicles on the road today for more coverage
- Seal and pressurize your vehicle’s cooling system as the radiator transfers heat from the engine’s coolant to the outside air
- Professional, premium aftermarket replacement radiator cap

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ACDELCO |
| Brand | ACDelco |
| Model | 10409635 |
| Product Dimensions | 6.35 x 6.1 x 3.81 cm; 59 g |
| Item model number | RC27 |
| Exterior | Machined |
| Manufacturer Part Number | 10409635 |
| OEM Part Number | 10409635 |
| Item Weight | 59 g |

## Product Details

- **Brand:** ACDelco
- **Colour:** Silver
- **Material:** Plastic Metal
- **Exterior finish:** Machined
- **Item dimensions L x W x H:** 6.4 x 6.1 x 3.8 centimeters

## Images

![ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap - Image 1](https://m.media-amazon.com/images/I/71LT439L2FL.jpg)
![ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap - Image 2](https://m.media-amazon.com/images/I/71kH5p+S32L.jpg)

## Questions & Answers

**Q: Where is this cap made?**
A: always replace with factory part as much as you can

**Q: Will this fit a 1992 silverado 5.7**
A: As far as I know it was. My husband died back in March. I know he didn't send it back.

**Q: Please advice what filler neck will suite to this cap - 43mm/56 mm/68mm?**
A: 43mm

**Q: will it fit 93 corvette**
A: The picture looks nothing like the RC27. It's metal not plastic. Sorry can't help you with the 93 Vette. I used it on a 93 Cadillac Deville with a 4.9L V8. Not sure if it's to your application, but if yours is plastic - this isn't the one for you.  - John

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fit
*by R***D on 18 May 2025*

Fit for my gmc Sonoma 1995

## Frequently Bought Together

- ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap
- FEL-PRO 35062 Engine Coolant Outlet Gasket for Chevrolet K1500
- ACDelco Professional 252-719 Water Pump Kit

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**Shop now:** [https://www.desertcart.sc/products/256365357-acdelco-gm-original-equipment-rc27-15-p-s-i-radiator](https://www.desertcart.sc/products/256365357-acdelco-gm-original-equipment-rc27-15-p-s-i-radiator)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-21*