Cat 307 Excavator Parts
HW Part Store carries replacement parts for Cat 307 excavators, including hydraulic cylinder seal kits and bucket linkage components for Cat 307, 307B, 307C, and 307SSR applications.
Each product is listed with compatibility details to help operators and repair teams identify the correct Caterpillar part before ordering. To browse available components, click the button for your equipment model to view the parts that apply to your machine.
Exact-fit Cat 307 Aftermarket Excavator Seal Kits
The Caterpillar 307 seal kit collection covers hydraulic cylinder repair across the full machine, with individual kits available for the boom, bucket, stick, blade, and offset cylinders. Each product page includes compatibility information such as serial number ranges, bore size, and rod size, so operators can confirm a proper fit before placing an order.
A whole machine kit is also available and includes boom, bucket, stick, and blade seal kits along with a free O-ring pick set, offering a practical option for crews managing repairs across multiple cylinders at once.
These aftermarket seal kits are precision-engineered to match the cylinder dimensions of the Caterpillar 307, reducing the risk of fitment issues during repair.
Keeping exact-fitting replacement parts on hand means hydraulic repairs can be completed without waiting on parts, which helps reduce job site downtime and keeps the machine in service.
Our Range of Bucket Linkage Parts
The bucket linkage parts collection includes pins, H-links, bushings, seals, and O-rings for Cat 307, 307B, 307C, and 307SSR excavator applications. Each component is listed with a drawing reference number to support accurate identification, which is particularly useful when working from service documentation or parts diagrams.
Certain pins and bushings are made in America from 4140 alloy steel heat-treated to 65 Rockwell hardness, built to withstand the repetitive stress bucket linkage components experience.
Sourcing Your Replacement Parts from HW Part Store
HW Part Store carries replacement parts across a variety of construction equipment, with new components added each week.
Product listings include detailed specifications to help customers match parts to their specific machine configurations, and customer support is available during business hours for additional help with part selection.
All parts are backed by a 30-day return policy. We also offer free U.S. shipping on seal kits and hose orders over $150, with international shipping options also available for customers in over 170 countries.