Not sure which cylinder or kit you need? View our Backhoe Cylinder ID Diagram
This collection covers seal kits for replacing seals during Case 680B hydraulic cylinder repair across the hydraulic system, including outrigger, swing, boom, dipper, bucket, loader lift, loader bucket tilt, and loader hydra-leveling positions.
With more than ten products available and collection filters organized by cylinder location, customers working on a Case 680B backhoe can identify the correct kit without sorting through unrelated parts.
Filters for stabilizer/outrigger, swing, boom, dipper, and loader applications make narrowing down results straightforward.
Product listings include full seal kits, rod seal kits, and bore seal kits to suit different stages of Case 680B cylinder maintenance.
Full kits contain all the seals required for a complete cylinder rebuild, covering both gland and piston components, while rod-end seals address the gland end and bore seals cover the piston end.
Backhoe Loader Fitment Details
Matching seals to the correct cylinder on a Case 680B requires confirming several specification points, including cylinder number, rod diameter, bore diameter, piston type, and wiper style.
Case 680B cylinder configurations vary by application, with the outrigger cylinder using a 2-inch rod and a 4-inch bore with a two-piece piston. Swing cylinder applications use a 2-inch rod and a 4-1/2-inch bore, with differences in press-in and snap-in wiper styles across positions.
Product pages identify compatible Case cylinder numbers including G32601, D42708, G32878, G32879, G32675, G32676, D45303, D45304, D45313, G33810, D44661, and D49525 to support direct cross-referencing before ordering.
These aftermarket seals and kits are sourced from quality-vetted vendors and are designed to match the dimensional specifications of the original Case 680B cylinders.
Keep exact-fitting replacement seals on hand for the Case 680B cylinders most likely to require service supports 680B backhoe hydraulics.
This allows a leaking cylinder to be resealed and returned to service without waiting on a parts shipment mid-job, reducing unplanned downtime on the 680B backhoe loader.
HW Part Store Case 680B Parts Support
HW Part Store supplies replacement seal kits and hydraulic parts for Case construction equipment models, with competitive pricing on Case 680B replacement parts.
The site is accessible around the clock, allowing customers to locate and order replacement Case 680B components at any time, and new equipment models and components are added to the store on a regular basis to expand coverage over time.
These listings focus on cylinder seals; torque converter or other drivetrain components require separate part identification.
Seal kit and hose orders over $150 qualify for free U.S. shipping, and domestic seal kit orders ship via FedEx 2-Day. A 30-day return policy is in place along with fitment support if a kit does not match the cylinder as expected.








