The Kato HD770 Excavator Undercarriage Chain Sprocket is a replacement drive sprocket designed to engage with the excavator track chain and transfer power from the final drive to the crawler system. As a key undercarriage component, the sprocket works together with the track chain, track rollers, and front idler to support smooth and stable machine travel.

Xiamen Doozer supplies aftermarket undercarriage chain sprockets for Kato HD770 excavators, with manufacturing and fitment options based on the machine’s specific undercarriage configuration. Industry parts catalogs list HD770 as a supported Kato model for excavator track sprocket applications.

A properly matched sprocket helps maintain correct engagement with the track bushings and can reduce irregular wear between the sprocket and track chain. For replacement work, the sprocket should be selected according to the machine model, serial number, track-chain configuration, and existing undercarriage dimensions.

Because different production versions or configurations may use different sprocket specifications, Xiamen Doozer recommends confirming the original part number or providing photos and measurements before ordering. This approach helps ensure correct tooth profile, mounting dimensions, and compatibility with the existing track chain.

• Designed for Kato HD770 Applications – Suitable for selected HD770 excavator undercarriage configurations.
• Reliable Track Engagement – Manufactured to work with the track chain for stable power transmission.
• Undercarriage Replacement Part – Suitable for replacing worn or damaged drive sprockets.
• Heavy-Duty Construction – Designed for demanding crawler excavator working conditions.
• Factory Direct Supply – Available directly from Xiamen Doozer for international distributors and machinery repair businesses.
• Fitment Support – Model, serial number, original part number, photos, and dimensions can be checked before quotation.