Ferris 84008730 Hydraulic Transaxle | OEM Left-Side

Ferris 84008730 Hydraulic Transaxle - OEM Left-Side Replacement

The Ferris 84008730 Hydraulic Transaxle is a genuine OEM Ferris replacement hydrostatic transaxle for select Ferris SRS Z3X commercial stand-on mowers. This unit is designed for the left side / LH position where specified by the Ferris parts diagram.

Ferris 84008730 replaces OEM part numbers 5107881 and 5107881FS. It is the correct factory replacement when your parts manual lists 84008730, 5107881, or 5107881FS for the left-side hydraulic transaxle.

This new OEM hydraulic transaxle helps restore smooth steering response, consistent power transfer, and proper drive performance on compatible Ferris SRS Z3X mowers. Always verify your full model number, serial number, original part number, drive side, mounting location, and parts manual before ordering.

Fitment notice: This listing is for the left-side transaxle only. Transaxles are commonly non-returnable once ordered or installed, so confirm fitment before purchase.

Product Details

Key Features

• Genuine OEM Ferris hydraulic transaxle
• Part number 84008730
• Replaces Ferris 5107881 and 5107881FS
• Correct left-side / LH replacement where specified
• Designed for select Ferris SRS Z3X commercial stand-on mower applications
• Helps restore smooth steering and drive response
• Built for commercial SRS Z3X duty cycles
• Helps avoid fitment issues common with incorrect aftermarket units
• Factory-correct replacement when listed in your Ferris parts manual

Compatible Ferris Models

Ferris 84008730 is listed for select SRS Z3X Series stand-on mower models as the left-side hydraulic transaxle. Visible fitment includes 52", 60", 61", and 72" mower deck configurations.

Compatible model numbers include: 5901691, 5901692, 5901693, 5901694, 5901784, 5901789, 5901809, 5901951, 5901953, 5901955, 5901957, 5902071, 5902096, 5902123, 5902168, 5902169, 5902170, 5902215, 5902216, and 5902217.

Use the clickable fitment sections below to view matching model numbers by deck size. Always verify your full model number, serial number, original part number, drive side, mounting location, and parts manual before ordering.

Important: This compatibility guide is based on supplied model references. Hydraulic transaxle compatibility can vary by mower model, serial number, deck size, left or right side, hydro drive configuration, mounting hardware, pulley setup, brake linkage, and parts manual revision.

Left-Side Hydraulic Transaxle Fitment Note

This listing is for the left-side / LH hydraulic transaxle only. Ferris SRS Z3X mowers may use different left-side and right-side hydro units, so do not order by mower series alone.

Confirm the left side from the operator’s position, match your original part number, and verify that your parts manual lists 84008730, 5107881, or 5107881FS before ordering.

When Should You Replace a Hydraulic Transaxle?

Replace the hydraulic transaxle if the original hydro unit is leaking, weak, noisy, slipping, damaged, overheating, or no longer providing smooth drive power. Drive problems may also be caused by belts, pulleys, linkage, brake components, hydraulic oil condition, or adjustment issues, so proper diagnosis is recommended before replacement.

• Mower will not drive on the left side
• Left side drive is weak, slipping, or inconsistent
• Hydraulic transaxle is leaking oil
• Drive unit is noisy, grinding, or overheating
• Mower pulls strongly to one side
• Original transaxle housing or shaft is damaged
• Ferris parts manual lists 84008730, 5107881, or 5107881FS as the correct replacement

Why Choose a Genuine Ferris Hydraulic Transaxle?

Genuine Ferris replacement parts are designed to match compatible Ferris mower assemblies for proper fit and dependable performance. Using the correct OEM hydraulic transaxle helps avoid issues caused by incorrect drive side, mounting layout, pulley alignment, linkage fit, or drive configuration.

• Factory-correct Ferris replacement part
• Designed for compatible Ferris SRS Z3X commercial mower drive systems
• Helps restore steering response and drive performance when properly installed
• Correct replacement when listed in your Ferris parts manual
• Recommended for commercial mower maintenance and repair

Fitment Checklist

Before ordering Ferris 84008730, confirm:

• Your full Ferris model number
• Your mower serial number
• Your mower series: SRS Z3X
• Your deck size and mower configuration
• Your parts diagram lists Ferris 84008730, 5107881, or 5107881FS
• Your original transaxle part number matches
• You need the left-side / LH hydraulic transaxle
• Your mounting hardware, pulley, belt, linkage, and brake setup match the original transaxle
• Your issue has been properly diagnosed before replacing the transaxle

If you are unsure, contact P&P Small Engines with your Ferris model and serial number before ordering. Transaxles are commonly non-returnable parts, so fitment should be confirmed before purchase.

Part Number / Search Terms

Ferris 84008730 may also be searched as:

• 84008730
• 5107881
• 5107881FS
• Ferris 84008730
• Ferris 5107881
• Ferris 5107881FS
• Ferris 84008730 hydraulic transaxle
• Ferris left hydraulic transaxle
• Ferris left side transaxle
• Ferris LH transaxle
• Ferris OEM transaxle
• Ferris hydrostatic transaxle
• Ferris SRS Z3X transaxle
• SRS Z3X left transaxle
• Ferris stand on mower transaxle
• Ferris commercial mower drive transaxle

Frequently Asked Questions

What is Ferris 84008730?

Ferris 84008730 is a genuine OEM left-side hydraulic transaxle for select Ferris SRS Z3X commercial stand-on mower models.

What part numbers does Ferris 84008730 replace?

Ferris 84008730 replaces OEM part numbers 5107881 and 5107881FS.

Is this the left-side transaxle?

Yes. This listing is for the left-side / LH hydraulic transaxle where specified by the Ferris parts diagram.

What models does Ferris 84008730 fit?

It is listed for select Ferris SRS Z3X models with 52", 60", 61", and 72" deck configurations. Fitment must be verified by full model number, serial number, drive side, original part number, and parts diagram.

Can I order this transaxle by deck size alone?

No. Deck size is only one part of fitment. Hydraulic transaxle compatibility should be confirmed by full model number, serial number, original part number, drive side, mounting layout, pulley setup, linkage, brake setup, and parts manual.

Can this replace the right-side transaxle?

No. Do not use this as a right-side replacement unless your official Ferris parts manual specifically lists 84008730 for that position. This listing is for the left-side unit.

What symptoms can indicate a bad hydraulic transaxle?

Common symptoms include the left side not driving, weak drive, slipping, oil leaks, grinding noise, overheating, or the mower pulling to one side. Belts, pulleys, linkage, brakes, oil condition, and adjustments should also be checked.

P&P Small Engines stocks Ferris hydraulic transaxles, hydro drive parts, belts, pulleys, blades, spindles, filters, electrical parts, service parts, and OEM replacement parts to help keep your mower ready to work.