Swing motor (slew motor) seal kit for CAT 307E series — restores hydraulic slew rotation without rebuilding the entire motor.

Complete seal set for the swing motor on hydraulic excavators. Cross-referenced to original CAT factory part numbers series parts.

Kit contents:
- Shaft seals (NBR/PU)
- Static O-rings and back-up rings
- Brake piston seals
- Port plate seals
- PTFE back-up rings (where applicable)

Symptoms of seal failure:
- External oil leak at swing motor base
- Sluggish or jerky swing rotation
- Drift when the upper structure should hold position

Application notes:
- Always inspect brake disc and piston during reseal
- Replace shaft bearings if any roughness is felt
- Use OEM-spec hydraulic fluid for refill

Fits CAT 307E swing motors.

Stocked in Surrey, BC. Same-day dispatch on orders placed before 2 PM PST.