CATERPILLAR 4W-1478: 122.30mm Outer Diameter Metal Seal Ring

The CATERPILLAR 4W-1478 Metal Seal Ring is a high-quality replacement part specifically designed for Caterpillar equipment. With an outer diameter of 122.30mm, this seal ring ensures a secure fit and reliable operation for your machinery. Made by the trusted brand CAT, this part is compatible with Caterpillar equipment models and is an essential component for maintaining the sealing and performance of your heavy equipment.

The CAT 4W-1478 is a metal seal ring with a 122.30mm outer diameter. Metal seal rings are used in Caterpillar components such as final drives, rollers and idlers, where they keep oil in and dirt out. They are replaced when the sealing face is scored or pitted, or when oil starts leaking from the component.

Before you order: confirm 4W-1478 in your Caterpillar parts book and measure the old seal against the 122.30mm diameter. Check whether your component also needs new rubber rings, which the listing does not mention.

New, open box, never installed. Ships from Kansas City, MO with tracking.

Orders ship from Kansas City, MO with USPS, UPS or FedEx. Shipping on this part is free. You get the tracking number by email as soon as it ships.

We accept returns for items that arrive defective, damaged or incorrect. Contact us within 30 days of delivery at shopmxlparts@gmail.com with your order number and photos. Full return policy