Products & Services

We provide complete helicopter parts supply and logistics solutions—from routine consumables to critical, hard-to-find components.

Parts Supply

We supply a full spectrum of helicopter components through OEM distribution lines, surplus inventory, and global sourcing partnerships.

Rotables

Consumables

Expendables

Hard-To-Find Parts Sourcing

Logistics &
Supply Chain

Proponent Helicopter Services leverages Proponent’s global distribution infrastructure to deliver parts quickly and reliably wherever your fleet operates. With stocking warehouses across the Americas, Europe, the Middle East, and Asia, we support worldwide sourcing, export compliance, and international logistics with precision and speed.

From procurement through final delivery, we manage documentation, traceability, and shipping coordination to ensure components arrive on time, fully compliant, and ready for installation.

Product Offering

Product

Bell Application

Actuators (Power Train/Power Plant)

204, 206, 209, 212, 214, 222

Adapters (Power Train/Power Plant)

204, 206, 209, 212, 214, 222

Bearings

204, 205, 206, 209, 212, 214, 222, 412, 540

Bell Cranks

204, 205, 206, 209, 212, 214

Electrical (Indicators, Relays, Resistors, Switches, Circuit Breakers)

204, 205, 206, 209, 212, 214, 222, 412, 540

Donaldson Partnership

Proponent Helicopter Services partners with Donaldson to deliver industry‑leading filtration and inlet barrier filter systems, backed by dependable distribution and aftermarket support.

Rotocraft Inlet Barrier Filter

Systems for MD Helicopters
MD 500 and MD 900/902

Rotocraft Inlet Barrier Filter

Systems for Leonardo
AB139 and AW139 Helicopters

Rotocraft Inlet Barrier Filter

Systems for Bell 206B/206L and 407 Helicopters

Rotocraft Inlet Barrier Filter

Consumables and Spare Parts

Rotocraft Inlet Barrier Filter

STC Matrix