P/N: 490127-0000

Hartzell Engine Tech V-Band Clamp 490127-0000

FAA-PMA Turbo Exhaust Clamp for Lycoming TIO / TEO / LTO Series Engines

The AeroForce 490127-0000 V-Band Clamp is an FAA-PMA approved replacement for Lycoming turbocharged exhaust systems, including TIO-540, TEO-540, LTO-360, and related applications.
This clamp secures the exhaust-to-turbocharger flange connection, maintaining a tight, continuous seal in high-heat turbo environments. Proper sealing is critical to prevent exhaust leakage, carbon monoxide intrusion, turbocharger inefficiency, and potential engine power loss.
Following AD 2023-09-09, many spot-welded V-band clamps are subject to a 500-hour life limit or recurring 100-hour / 6-month inspections. The Hartzell PMA clamp is not subject to this AD, providing a long-term replacement option for Lycoming operators seeking reduced compliance burden.

Why Choose 490127-0000:

• FAA-PMA approved for applicable Lycoming turbo engines
• Not subject to AD 2023-09-09 life limits
• Weld-free, rivet free construction to eliminate legacy weak points
• Braided wire cable and a floating retainer for improved load distribution and durability
• Integrated cable safety retention band for added security
• Designed for high-heat turbocharger exhaust connections
• Direct replacement for applicable OEM Lycoming part numbers

Inspection and Replacement Considerations

Replace the clamp if any of the following conditions are found:

• Cracked or deformed T-bolt
• Uneven band gap or clamp distortion
• Evidence of exhaust leakage at turbo flange
• Loss of proper torque retention

Inspect at each 100-hour, annual, or condition inspection per Hartzell Engine Technologies Service Information AF3003