Astro 7856 gauge and quick connector for cooling system leak testing.
Astro 7856 quick-connector adapters shown for universal compatibility.
Astro 7856 in use for constant-pressure leak tracing in a cooling system.
Astro 7856 performing radiator cap testing with a secure connection.
Astro 7856 regulator set at 30 psi to prevent overpressure during testing.
Astro 7856 gauge and quick connector for cooling system leak testing.
Astro 7856 quick-connector adapters shown for universal compatibility.
Astro 7856 in use for constant-pressure leak tracing in a cooling system.
Astro 7856 performing radiator cap testing with a secure connection.
Astro 7856 regulator set at 30 psi to prevent overpressure during testing.

Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester

OverviewThe Astro 7856 is a universal, air-powered cooling system pressure tester designed to help technicians locate leaks,...
Vendor: AP Astro Pneumatic Tool Company
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Astro 7856 gauge and quick connector for cooling system leak testing.

Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester

£57.13
Astro 7856 gauge and quick connector for cooling system leak testing.
Astro 7856 quick-connector adapters shown for universal compatibility.
Astro 7856 in use for constant-pressure leak tracing in a cooling system.
Astro 7856 performing radiator cap testing with a secure connection.
Astro 7856 regulator set at 30 psi to prevent overpressure during testing.

Astro Pneumatic Tool 7856 Universal Air Powered Cooling System Pressure Tester

£57.13
Description
Description
x

Overview

The Astro 7856 is a universal, air-powered cooling system pressure tester designed to help technicians locate leaks, verify radiator caps, and speed coolant drainage. By regulating shop air, it creates a controlled testing environment that reduces guesswork and downtime, making routine maintenance more efficient.

Built with versatility in mind, this tool employs a universal quick connector that fits most brands’ testing caps and adapters. The integrated gauge displays common pressure levels for various cooling systems, while the regulator is capped at 30 psi to help protect components during testing.

Key capabilities

  • Pressure regulation: regulates shop air to test any cooling system or radiator cap for leaks
  • Universal compatibility: quick connector works with nearly all brands of testing caps and adapters
  • Leak tracing: maintains constant pressure on leaks to help trace their source
  • Safe operation: gauge shows typical pressures and the regulator maxes at 30 psi to prevent damage

Practical benefits

  • Rapidly fills large cooling systems, reducing service time
  • Consistent pressure helps identify leak points without repeated re-testing
  • Simple setup with standard shop air lines and adapters

How it works

  1. Attach the universal quick connector to a compatible testing cap or adapter.
  2. Connect to a shop air source and set the regulator to the desired pressure, up to 30 psi.
  3. Observe the gauge, maintain steady pressure, and look for escaping air or fluid to locate leaks.
  4. Use the tool to speed coolant draining when appropriate, while keeping the system under controlled pressure.

In a busy shop, the Astro 7856 provides a practical balance of control and speed. It supports a variety of cooling system configurations and caps, giving technicians a reliable way to verify integrity and streamline routine maintenance without disassembly.

FAQ

Q: What is the Astro Pneumatic Tool 7856 used for?

A: A universal air-powered tester to locate cooling system leaks, test radiator caps, and speed coolant draining by regulating shop air.

Q: What is the maximum pressure of the 7856?

A: The built-in regulator maxes at 30 psi to help prevent over-pressurizing during testing.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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