Weil McLain 590-317-627 Inducer Gasket

The Weil McLain 590-317-627 Inducer Gasket is a flat white gasket that seals the inducer connection on Weil McLain boilers. The part is catalogued as an inducer gasket for CGi and CGS 25-7 boilers, and the CGi Series 5 parts list shows Gasket, inducer under this number on the section assembly page. The product is the gasket only, with no mounting plate or other hardware.

The gasket is flat and white, with a rectangular window opening, one clipped corner and a pattern of small bolt holes. The clipped corner is a useful reference when you install it, because it shows which way the gasket sits against the mating surface. When an inducer is removed for service, the old gasket is usually compressed, torn or stuck to the surfaces, and reusing it risks a flue gas leak at the joint. Fitting a new 590-317-627 each time the inducer comes off is the straightforward way to keep that connection sealed.

Clean the mating surfaces before installing the new gasket, line up the bolt holes and the clipped corner with the old gasket, and tighten the hardware evenly according to the boiler manual. After reassembly, run the boiler through a complete cycle and check the joint for leaks. If your boiler is not a CGi or CGS, compare the old gasket's shape and hole pattern with the product photo, or send us the model and serial number so our team can confirm before you buy.

Key Benefits

• Catalogued for CGi and CGS 25-7: The part description names CGi and CGS 25-7 boilers, and the CGi Series 5 parts list shows it as the inducer gasket.
• Gasket Only: No plate or hardware is included, so you are not paying for parts you already have.
• Clear Orientation Cues: A rectangular window, one clipped corner and small bolt holes make it simple to line up against the old gasket.
• Fresh Seal Every Service: A new gasket each time the inducer is removed avoids reusing a compressed or torn seal.

Common Questions

• What does the 590-317-627 seal? It is the inducer gasket for Weil McLain CGi and CGS 25-7 boilers, listed as Gasket, inducer in the CGi Series 5 parts list.
• Does it include a plate or hardware? No. It is the gasket only.
• Can I reuse the old gasket? It is better not to. An inducer gasket compresses and can tear when it is removed, and a new 590-317-627 gives the joint a fresh seal.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.