Hydro-Gear G700 — G7-BCBB-1XDC-1FCA (representative image) Click to zoom

Hydro-Gear G7-BCBB-1XDC-1FCA G700 Hydrostatic Transaxle

MPN G7-BCBB-1XDC-1FCA

Replaces Husqvarna 420331

Free shippingIn stockHydrostatic Transaxle

Overview

Hydro-Gear G7-BCBB-1XDC-1FCA is a genuine Hydro-Gear G700 hydrostatic transaxle. The G700 is one of Hydro-Gear's largest residential twin-axle transaxles, suited to decks up to 54 in and 20–26 hp engines.

Order by the full model number on the Hydro-Gear label (G7-BCBB-1XDC-1FCA). Hydro-Gear builds each model to an OEM specification and advises against substituting a different model, so match every character.

Replaces / cross-reference: Husqvarna 420331. Confirm against your mower's parts list.

More on this series: How to find your Hydro-Gear part number · Shop all Hydro-Gear parts

Specifications

Brand Hydro-Gear (genuine)
Model / part number G7-BCBB-1XDC-1FCA
Series G700
Type Hydrostatic Transaxle
Pump / motor displacement 10 cc pump, 16 cc motor, 1.9 cc charge pump (series spec)
Input speed 3600 rpm max, 1800 rpm min (series spec)
Output torque 230 lb-ft continuous, 445 lb-ft intermittent (series spec)
Reduction 27.5:1 (series spec)
Axle 1.0 in, keyed with two flats (series spec)
Unit weight 42 lb (series spec)
Fluid 20W50 engine oil (series spec)
Filter External, Hydro-Gear 52114

Service notes

  • Oil and filter: 20W50 engine oil and Hydro-Gear filter 52114. First change at 75–100 hours, then every 400 hours.
  • Capacity is 92.9–96.3 fl oz (vertical input) or 113.2–116.6 fl oz (horizontal input).
  • After installing, purge air from the system following Hydro-Gear's procedure: wheels off the ground, cycle forward/reverse 5–6 times with the bypass open, then 5–6 times closed, and top up the oil.

Shipping

  • Free shipping (lower 48).

Frequently asked questions

Where do I find my Hydro-Gear model number?

On the Hydro-Gear label on the unit (on the transaxle). Current numbers look like G7-BCEE-1X7B-1XCX. See how to find your Hydro-Gear part number.

Can I use a different model that looks the same?

Hydro-Gear strongly discourages using any model not originally specified by the mower maker; similar-looking units can differ internally. Send us your label number and mower model through the Hydro-Gear part finder and we'll identify the correct current unit.