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Description
72528 Seal Kit – OEM Hydro‑Gear
The 72528 Seal Kit is a high‑quality genuine Hydro‑Gear replacement seal set designed for use in select Hydro‑Gear transaxles and hydrostatic drive units. Manufactured to original equipment specifications, this OEM seal kit helps restore proper sealing performance, prevent fluid leaks, and extend the service life of the drive system.
Hydro‑Gear seals are engineered for heavy‑duty commercial and residential mower applications where durable sealing under pressure, heat, and contamination is critical. Replacing worn, cracked, or leaking seals helps maintain proper fluid levels, reduces contamination ingress, and preserves hydraulic component integrity.
Product Details
Part Number: 72528
Brand: Hydro‑Gear (OEM)
Product Type: Seal Kit
Application: Hydrostatic Transaxles / Drive Units
Construction: OEM Genuine Seals
Condition: New OEM Part
Function
This seal kit is designed to:
- Replace worn or leaking seals in hydrostatic drive components
- Maintain proper hydraulic fluid containment
- Prevent dirt and moisture ingress
- Support proper pressure and drive performance
- Reduce premature component wear
⚠️ Leaking seals can lead to reduced drive performance, fluid loss, and premature wear of internal components.
Verify Fitment (Recommended)
Before ordering, confirm:
- Exact part number 72528
- Hydro‑Gear model or transaxle model number
- Application details (mower make/model/serial)
⚠️ Always verify fitment using the OEM parts diagram or Hydro‑Gear service manual.
Compatibility
Used in various Hydro‑Gear hydrostatic transaxles and drive systems found in commercial and residential mowers. Compatibility varies by transaxle model and serial range — confirm with your service parts lookup.
⚠️ Designed specifically for applications requiring OEM Hydro‑Gear seal specifications — verify before purchase.
Installation Notes
- Drain hydraulic fluid before service
- Remove old seals and clean housing bore
- Install new seals with proper tools to avoid distortion
- Reassemble components and refill with correct fluid
- Test for leakage and proper operation
⚠️ Improper installation may compromise sealing performance.
Maintenance Tips
- Inspect seals routinely for leaks or damage
- Maintain proper fluid levels and quality
- Replace full seal kit at first sign of failure
- Use OEM Hydro‑Gear parts for best long‑term performance
