Hydro-Gear Oil Seal Kit for Transmissions Part 72881 | OEM Replacement Part

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Hydro-Gear Oil Seal Kit for Transmissions Part 72881 | OEM Replacement Part

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HYDRO-GEAR

Oil Seal Kit

Hydro-Gear 7288Hydro-Gear 72881 For all ZT-4400 ...1 — Oil Seal Kit

Also known as: Transmission Seal Kit, Hydrostatic Drive Seal Kit, Oil Seal Repair Kit

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Specifications

Specification Detail
Part Number 72881
Brand Hydro-Gear (Gardner Inc.)
Part Type Oil Seal Kit
Application Hydrostatic Transmissions
OEM Replacement Yes — Genuine Hydro-Gear OEM
Condition New

The Hydro-Gear 72881 is a genuine OEM Oil Seal Kit designed for use in Hydro-Gear hydrostatic transaxle and transmission assemblies. Also referred to as a transmission seal kit, hydrostatic drive seal kit, or oil seal repair kit, this component is used to prevent fluid leaks at shaft seals within the transmission housing. It is commonly found as a service part on zero-turn riding mowers, commercial lawn equipment, and other outdoor power machinery equipped with Hydro-Gear hydrostatic drive systems.

Key Features▼

Genuine OEM Hydro-Gear Seal Grade

Part 72881 is a genuine Hydro-Gear OEM oil seal kit, manufactured to the exact tolerances and material specifications required for hydrostatic transmission service. OEM quality ensures a proper fit and consistent sealing performance.

Hydrostatic Transmission Oil Leak Repair

Designed to address oil leaks at shaft entry and exit points in Hydro-Gear transaxle units, this kit restores proper sealing and prevents hydraulic fluid loss that can lead to transmission damage or loss of drive performance.

Hydro-Gear 72881 Cross-Reference and OEM Fitment

This kit is referenced directly under Hydro-Gear part number 72881 and is sourced from the original equipment manufacturer. It is the correct service replacement kit for qualified Hydro-Gear transmission models requiring oil seal replacement.

Zero-Turn and Commercial Mower Compatibility

Hydro-Gear part 72881 is used in service and repair of hydrostatic transaxles found in zero-turn mowers and commercial lawn equipment from leading brands including Ariens, Husqvarna, Toro, Exmark, and others that use Hydro-Gear drive systems.

Compatible Equipment▼

Hydro-Gear part 72881 is a service kit used across a wide range of equipment powered by Hydro-Gear hydrostatic transaxle units. Always verify against your specific transmission model number before ordering.

Equipment brands commonly using Hydro-Gear hydrostatic transmissions compatible with part 72881 include Ariens zero-turn mowers, Husqvarna riding mowers, Toro TimeCutter series, Exmark commercial mowers, Gravely stand-on and zero-turn units, and other OEM brands that spec Hydro-Gear transaxle assemblies requiring oil seal kit 72881.

  • Ariens Zero-Turn Riding Mowers (Hydro-Gear equipped)
  • Husqvarna Zero-Turn and Riding Mower Series
  • Toro TimeCutter and Commercial Zero-Turn Mowers
  • Exmark Lazer Z and Quest Series
  • Gravely Pro-Turn and Zero-Turn Series
  • Ferris Zero-Turn Mowers (Hydro-Gear drive models)
  • Bad Boy Mowers (Hydro-Gear equipped models)
  • Cub Cadet Zero-Turn Series (Hydro-Gear drive)

Note: Confirm your Hydro-Gear transmission model number matches part 72881 before installation.

Common Questions▼

Q: What does Hydro-Gear oil seal kit 72881 fix?

A: Hydro-Gear 72881 is used to repair oil leaks at the shaft seals of a Hydro-Gear hydrostatic transaxle or transmission. Replacing worn or damaged seals with this kit helps restore proper fluid retention and protects the transmission from further damage caused by low fluid levels.

Q: Is part number 72881 a genuine Hydro-Gear OEM part?

A: Yes. Part 72881 is a genuine OEM oil seal kit sourced directly from Hydro-Gear (Gardner Inc.), the original manufacturer. It is not an aftermarket alternative, ensuring correct material grade and dimensional fit for your hydrostatic transmission.

Q: How do I know if my zero-turn mower needs a Hydro-Gear oil seal replacement?

A: Common signs include visible oil around the transaxle housing, a burning oil smell during operation, gradual loss of drive power, or low hydrostatic fluid levels without an obvious external cause. If your Hydro-Gear unit shows any of these symptoms, inspecting and replacing the oil seals with kit 72881 is a recommended service step.

Q: What Hydro-Gear transmission models use the 72881 oil seal kit?

A: Part 72881 is a Hydro-Gear service kit used across multiple transaxle model families. Refer to your transmission's model and serial number and cross-reference with the Hydro-Gear parts catalog or your equipment's service manual to confirm that 72881 is the correct oil seal kit for your specific unit.

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Sourced directly from Hydro-Gear. Order part 72881 with confidence.