--- product_id: 75674964 title: "Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester" brand: "ap astro pneumatic tool company" price: "Β£47.98" currency: GBP in_stock: true reviews_count: 13 category: "Ap Astro Pneumatic Tool Company" url: https://www.desertcart.co.uk/products/75674964-astro-pneumatic-tool-7856-universal-air-powered-cooling-system-pressure store_origin: GB region: United Kingdom --- # Built-in pressure gauge Universal quick connector Instant large system fill Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester **Brand:** ap astro pneumatic tool company **Price:** Β£47.98 **Availability:** βœ… In Stock ## Summary > πŸ”§ Master your cooling system diagnostics with precision and speed! ## Quick Answers - **What is this?** Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester by ap astro pneumatic tool company - **How much does it cost?** Β£47.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/75674964-astro-pneumatic-tool-7856-universal-air-powered-cooling-system-pressure) ## Best For - ap astro pneumatic tool company enthusiasts ## Why This Product - Trusted ap astro pneumatic tool company brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Rapid System Fill:** Fills large cooling systems almost instantly, saving you valuable diagnostic time. - β€’ **Durable Aluminum Build:** Lightweight yet robust 1.4-pound aluminum body designed for professional use. - β€’ **Clear Pressure Readings:** Integrated gauge displays common pressure levels, ensuring accurate and safe testing. - β€’ **Universal Compatibility:** Quick connector fits nearly all cooling system caps and adapters for seamless testing. - β€’ **Precision Leak Detection:** Pinpoint cooling system leaks with constant regulated pressure up to 30 PSI. ## Overview The Astro Pneumatic Tool 7856 is a universal air-powered cooling system pressure tester designed to quickly and accurately detect leaks, test radiator caps, and regulate shop air pressure up to 30 PSI. Featuring a durable aluminum build, a quick connector compatible with most cooling system adapters, and a built-in pressure gauge, it fills large systems almost instantly while providing constant pressure for precise leak tracing. ## Description The Astro 7856 Universal air powered cooling system pressure tester is designed to test and locate cooling system leaks, test caps or speed up the coolant draining process by regulating shop air pressure. This unit’s Quick connector works on nearly all brands of cooling system testing caps and adapters. The built-in gauge displays the common pressure levels for different cooling systems for up to 30PSI max. The tool provides Constant pressure on leaks to trace their source and fills even larger cooling systems almost instantly. Review: Yes this is the tool you have been waiting - I bought this just like it is an swapped out the hose from my snap on pressure tester an adapters onto this tool it works flawlessly no more bursting coolant from the bottle because you forgot tooo release the air pressure no more pumping I’m getting old I’m trying too save body a few steps for the future it quik faster then the traditional tester this a much better design an cheaper then buying the hole set .i do this on. Professional level it must have for the tool arsenal Review: Great tool - Used it to test my 1994 Peterbilt 379 with a 3406E Cat. Had to get a radiator cap with the male fitting in the top to connect to. Worked great! ## Features - Pressure regulates shop air to test any cooling system or radiator cap for leaks - Quick connector works on nearly all brands of cooling system testing caps and adapters - Fills even large cooling system almost instantly, and provides constant pressure on leaks to trace their source - Gauge displays the common pressures levels for different cooling systems and regulator will max at 30psi to prevent damage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01JBJTA9W | | Best Sellers Rank | #51,824 in Automotive ( See Top 100 in Automotive ) #24 in Pressure & Vacuum Testers | | Brand | AP Astro Pneumatic Tool Company | | Brand Name | AP Astro Pneumatic Tool Company | | Customer Reviews | 4.7 out of 5 stars 416 Reviews | | Global Trade Identification Number | 00745227058877 | | Included Components | Universal Air Powered Cooling System Pressure Tester | | Item Dimensions | 7.75 x 7.17 x 3 inches | | Item Type Name | Universal Air Powered Cooling System Pressure | | Item Weight | 0.66 Kilograms | | Item dimensions L x W x H | 7.75 x 7.17 x 3 inches | | Manufacturer | Astro Pneumatic Tool | | Material | Metal | | Material Type | Metal | | Model | 7856 | | Number of Items | 1 | | Part Number | 7856 | | UPC | 745227058877 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** AP Astro Pneumatic Tool Company - **Material:** Metal - **Item dimensions L x W x H:** 7.75 x 7.17 x 3 inches - **Item Weight:** 0.66 Kilograms - **UPC:** 745227058877 ## Images ![Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Image 1](https://m.media-amazon.com/images/I/71+oOGrl32L.jpg) ![Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Image 2](https://m.media-amazon.com/images/I/81zjihz0z3L.jpg) ![Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Image 3](https://m.media-amazon.com/images/I/710PbPHUTjL.jpg) ![Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Image 4](https://m.media-amazon.com/images/I/51miMq4N+0L.jpg) ![Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Image 5](https://m.media-amazon.com/images/I/7147cuNDeUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Yes this is the tool you have been waiting *by S***T on May 3, 2026* I bought this just like it is an swapped out the hose from my snap on pressure tester an adapters onto this tool it works flawlessly no more bursting coolant from the bottle because you forgot tooo release the air pressure no more pumping I’m getting old I’m trying too save body a few steps for the future it quik faster then the traditional tester this a much better design an cheaper then buying the hole set .i do this on. Professional level it must have for the tool arsenal ### ⭐⭐⭐⭐⭐ Great tool *by R***N on December 16, 2025* Used it to test my 1994 Peterbilt 379 with a 3406E Cat. Had to get a radiator cap with the male fitting in the top to connect to. Worked great! ### ⭐⭐⭐⭐⭐ Great alternative to overpriced tool truck testers! *by S***N on December 1, 2019* I bought this as an alternative to the Snap-On version that costs $281 before tax and I am glad I did, it is the same tool. Part of our preventive maintenance inspection at work is to pressurize the cooling system on Class 8 trucks and using a manual pump to pressurize these large systems is time consuming and tiring. This can pressurize them in seconds and you can regulate the pressure you want to pressurize them to. The pressure release button at the end of the hose is a nice feature because you can slowly release the pressure so you don't blow coolant all over the place. This tool will save you money, time, and hassle when testing cooling systems of any size. I do wish it had come with a case and an adapter for putting it on the tanks but it didn't so I bought a GM adapter (Astro 7858541) that had the fitting I needed for the quick connect and used the twist lock adapter off of my old manual tester with it. ## Frequently Bought Together - Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester - Astro Pneumatic Tool 78585 Universal Radiator Pressure Tester & Vacuum Type Cooling System Kit - Astro 7858541 Number-41 Radiator Test Cap for Late GM and Ford --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/75674964-astro-pneumatic-tool-7856-universal-air-powered-cooling-system-pressure](https://www.desertcart.co.uk/products/75674964-astro-pneumatic-tool-7856-universal-air-powered-cooling-system-pressure) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-27*