---
product_id: 6638756
title: "ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap"
brand: "acdelco"
price: "€ 20.93"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i
store_origin: SK
region: Slovakia
---

# 15 P.S.I. pressure rating Vehicle-specific GM fit Durable stainless steel build ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap

**Brand:** acdelco
**Price:** € 20.93
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your GM running cooler, longer — the smart upgrade your engine deserves!

## Quick Answers

- **What is this?** ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap by acdelco
- **How much does it cost?** € 20.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i)

## 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

- • **OEM Trusted Quality:** GM-recommended replacement part delivering original equipment performance and peace of mind.
- • **Safety-First Design:** Seals the cooling system tightly to prevent leaks and overheating, protecting your engine investment.
- • **Factory-Grade Durability:** Crafted with stainless steel for long-lasting reliability and corrosion resistance.
- • **Tailored GM Compatibility:** Engineered to fit most GM models perfectly, ensuring seamless integration and performance.
- • **Precision Pressure Control:** Maintains optimal 15 P.S.I. pressure to boost coolant boiling point and engine efficiency.

## Overview

The ACDelco GM Original Equipment RC85 Radiator Cap is a vehicle-specific, spring-loaded cap designed to maintain 15 P.S.I. pressure in the cooling system, raising the coolant boiling point for enhanced engine efficiency. Made from durable stainless steel, it fits most GM models and is a GM-recommended OEM replacement, ensuring reliable sealing, safety, and long service life.

## Description

ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap

## 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
- GM recommended replacement part for your gm vehicle’s original factory component
- Offering the quality, reliability, and durability of gm oe
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ACDelco |
| Color | Black |
| Material | Metal |
| Exterior Finish | Stainless Steel |
| Item dimensions L x W x H | 2.5 x 2.4 x 1.5 inches |
| Vehicle Service Type | Car |
| Style | Safety |
| Item Weight | 2.24 ounces |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 15042975 |
| Manufacturer | AC Delco |
| UPC | 021625403168 781761172440 |
| Global Trade Identification Number | 00021625403168, 20021625403162 |
| Model | ACDelco - 15 P.S.I. Radia (Slp) (RC85) |
| Product Dimensions | 2.5 x 2.4 x 1.5 inches |
| Item model number | RC85 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 15042975 |

## Product Details

- **Brand:** ACDelco
- **Color:** Black
- **Material:** Metal
- **Exterior Finish:** Stainless Steel
- **Item dimensions L x W x H:** 2.5 x 2.4 x 1.5 inches

## Images

![ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap - Image 1](https://m.media-amazon.com/images/I/619IxyK6bmL.jpg)

## Questions & Answers

**Q: Does it 2015 gmc yukon xl denali**
A: Cap Asm-Rad Fil - GM (13502354)

**Q: Will this fit an 07 Grand Prix Base?**
A: yes

**Q: Does it have a spring on it**
A: Never be fooled by GM "Original Equipment". It is NEVER the O.E. part that came on your vehicle from the factory. No matter if it is a radiator cap, a fan clutch, a water pump, whatever. If it is labeled/described as a GM "Original Equipment" part, it will either be made in Mexico, China, or sourced from another nonGM affiliated manufacturer, that never manufactured an O.E. part for their vehicles ........just put in a GM Original Equipment box/package, and sold at a very very very inflated price, to another successfully conned customer!

**Q: Will this cap fit 2006 Pontiac grand prix**
A: I think it don't fit because the Pontiac I believe have expansion tank and the cap is different. GMC savana have the cap rigth at the radiator "neck."

## Frequently Bought Together

- ACDelco GM Original Equipment RC85 15 P.S.I. Radiator Cap
- ACDelco Professional 252-822 Water Pump Kit
- ACDelco Gold 20382S Molded Upper Radiator Hose

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**Shop now:** [https://www.desertcart.sk/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i](https://www.desertcart.sk/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-24*