Home » General Motors GM-48974-5 EGR Cooler Tester Adapter Set, 5/8"

Note: The product title and description supersede the image shown. The image provided by the manufacturer is not always exact. We may use the same image for multiple sizes of an item.

GM Special Tools and Equipment

General Motors GM-48974-5 EGR Cooler Tester Adapter Set, 5/8"

SKU: GM-48974-5
$159.99

Use this text to encourage communication or promote sharing on social networks.

You can also add links

General Motors GM-48974-5 EGR Cooler Tester Adapter Set, 5/8"

Kent-Moore Tool Number: EN-48974-5

GM-48974-5 EGR Cooler Pressure Tester Adapter (4HK1 - 5/8" hose) is used along with GM-46091-1 Pressure Regulator Assembly to test the EGR cooler for leaks between the coolant side and the exhaust side. The cooling system is drained, and the hoses are removed from the EGR cooler inlet and outlet. The pressure adapter from GM-48974-5 is attached to the EGR cooler on either the inlet or outlet, and the other end is plugged using the supplied cap. With the regulator completely open, GM-46091-1 is attached to shop air, and the regulator is gradually turned until 15 psi is reached. The valve on GM-46091-1 is closed, and the system is left. Pressure should be maintained for at least 15 minutes, with minimal pressure drop. Any significant pressure drop indicates the EGR cooler is leaking.

GM-48974-5 includes GM-48974-1 (5/8” adapter), GM-48974-2 5/8” (cap plug) and non-marring hose clamps to fit 5/8” hose connections.  GM-48974-5 components are included in GM-48974.

For the General Motors Tools Catalog, click here

Looking for General Motors Specialty Tools?
Rest assured, we're here to guide you. If you can't find the GM car repair tools you're looking for in our catalog, please don't hesitate to contact us. Our dedicated and knowledgeable team is ready to assist with any inquiries and help you find the right tool to meet your needs. You can reach us directly at (909) 334-4400. Tillman carries the broadest online inventory of automotive tools.

Wide Selection of Tools:
Do you need hard-to-find quality mechanic tools, high-end electrician tools, auto body repair tools and supplies, or forestry tools at affordable prices? Look no further! With FREE shipping on selected items, our store has everything you need. Whether you're an authorized repair shop, an independent repair shop, or a DIY enthusiast needing specialty automotive tools, hand tools, or equipment, we have you covered. Our selection includes parts and specialty tools for Harley-Davidson, Ducati, and Suzuki, ensuring the job is done correctly.