--- product_id: 6638756 title: "ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap" brand: "acdelco" price: "127.82 DT" currency: TND in_stock: true reviews_count: 13 category: "Ac Delco" url: https://www.desertcart.tn/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i store_origin: TN region: Tunisia --- # 24-month unlimited mile warranty Vehicle-specific GM OE fit 15 P.S.I. pressure rating ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap **Brand:** acdelco **Price:** 127.82 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Keep your GM running cool and confident — don’t let overheating slow your hustle! ## Quick Answers - **What is this?** ACDelco GM Original Equipment RC85 (15042975) 15 P.S.I. Radiator Cap by acdelco - **How much does it cost?** 127.82 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **GM-Approved Reliability:** Engineered as a direct replacement for your GM vehicle’s original radiator cap for seamless performance. - • **Smart Cooling System Seal:** Seals radiator neck tightly to prevent leaks and replenishes coolant from the expansion tank automatically. - • **Precision Pressure Control:** Maintains optimal 15 P.S.I. pressure to boost coolant boiling point and engine efficiency. - • **Durable Stainless Steel Build:** Crafted with corrosion-resistant stainless steel to ensure long-lasting durability under extreme conditions. - • **Warranty-Backed Peace of Mind:** Comes with a 24-month unlimited mile limited warranty, so you’re covered on every drive. ## 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 your GM vehicle’s cooling system. Made from durable stainless steel, it raises the coolant boiling point to optimize engine performance and prevent overheating. This GM-recommended replacement part ensures a perfect fit and reliable sealing, backed by a 24-month unlimited mile warranty for lasting peace of mind. ## 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: Fits and works like new ftom factory - Fit perfect works as described, check your cap , the oring or gasket maybe worn or missing causing major problems, and is only a simple fix Review: Radiator Cap - As described. Perfect fit. Hopefully it does its job over time. ## 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 | |---------------|-------| | ASIN | B000C9S78G | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #30,606 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Replacement Radiator Standard #515 in Automotive Replacement Engine Cooling & Climate Control | | Brand | ACDelco | | Brand Name | ACDelco | | Closure Type | Twist-On | | Color | Black | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.7 out of 5 stars 2,574 Reviews | | Exterior Finish | Stainless Steel | | Global Trade Identification Number | 00021625403168, 20021625403162 | | Included Components | ACDelco - 15 P.S.I. Radia (Slp) (RC85) | | Item Dimensions | 2.5 x 2.4 x 1.5 inches | | Item Type Name | ACDelco - 15 P.S.I. Radia (Slp) (RC85) | | Item Weight | 2.24 ounces | | Item dimensions L x W x H | 2.5 x 2.4 x 1.5 inches | | Manufacturer | AC Delco | | Manufacturer Part Number | 15042975 | | Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. | | Material | Stainless Steel | | Material Type | Stainless Steel | | Model Number | RC85 | | Number of Items | 1 | | OEM Equivalent Part Number | 15042975 | | Style Name | Safety | | UPC | 021625403168 781761172440 | | Unit Count | 1 Count | | Vehicle Service Type | Car | ## Product Details - **Brand:** ACDelco - **Color:** Black - **Exterior Finish:** Stainless Steel - **Item dimensions L x W x H:** 2.5 x 2.4 x 1.5 inches - **Material:** Stainless Steel ## 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." ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fits and works like new ftom factory *by T***T on April 18, 2026* Fit perfect works as described, check your cap , the oring or gasket maybe worn or missing causing major problems, and is only a simple fix ### ⭐⭐⭐⭐⭐ Radiator Cap *by M***S on August 27, 2026* As described. Perfect fit. Hopefully it does its job over time. ### ⭐⭐⭐⭐⭐ Great gas cap *by W***N on August 1, 2026* Perfect fit with a great price. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i](https://www.desertcart.tn/products/6638756-acdelco-gm-original-equipment-rc85-15042975-15-p-s-i) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-07*