John Deere Hydraulic Pump Drive Coupling — P/N FYA00066969 | Qty: 1

Item Overview

This is a new, factory-packaged John Deere OEM Hydraulic Pump Drive Coupling, part number FYA00066969, manufactured in Germany in May 2023. The pump drive coupling is a critical drivetrain component that connects the engine flywheel to the main hydraulic pump(s), transmitting torque while absorbing torsional shock and vibration. It is a wear item that must be replaced when the rubber/polyurethane drive elements show cracking, chunking, or excessive wear — failure to replace a worn coupling can result in pump damage or complete hydraulic system loss.

The coupling is a large-diameter ring-style assembly (approximately 14.1 inches / 35.8 cm in diameter, 5.2 inches / 13.2 cm in length, weighing approximately 31.7 lbs / 14.4 kg) featuring a splined inner hub and an outer ring gear with evenly-spaced mounting bolt holes — consistent with the design visible in the photos. The unit is manufactured in Germany, reflecting John Deere's use of European drivetrain suppliers for their excavator hydraulic systems.

Compatible Equipment

This coupling fits the following John Deere and Hitachi excavator models (confirmed via John Deere official parts store and multiple parts databases):

John Deere:

•470G LC

•450D LC

Hitachi (cross-reference — same OEM part):

•ZX470-5A

•ZX470LC-5A

•ZX470LC-5B

•ZX470LC-6

•ZX470LCH-5B

The John Deere 470G LC is a 47-tonne large excavator widely used in mining, quarrying, and heavy civil construction. The Hitachi ZX470 series is the equivalent Hitachi-branded platform built on the same base machine.

Key Specifications