Whelen PAR-46 Clear Non-Optic LED Replacement Lens

Part Number: 68-3971577A30 | Model Number: 71577A30

Protect your aircraft's landing lighting investment and restore optimal beam clarity with this genuine Whelen Aerospace Technologies (WAT) replacement outer lens. Formulated specifically for the popular Parmetheus™ and Parmetheus Plus™ Series PAR-46 LED Landing Lights, this clear, non-optic cover acts as the primary shield for your high-intensity internal optics against the brutal realities of the runway environment.

Because it features a non-optic design, this lens allows the internal Total Internal Reflector (TIR) optics of your Parmetheus lamp to focus and throw light exactly as engineered, without distorting or diffusing the beam pattern. If your current landing light lens is showing signs of sandblasting, micro-cracking (crazing), or yellowing from years of UV exposure, swapping it out will instantly recover lost candlepower and keep you safely visible.

Key Features & Benefits

• Genuine Whelen Component: OEM replacement part ensuring 100% mechanical compatibility, exact fitment, and structural integrity.

• Aviation-Grade Polycarbonate: Built to absorb impact from runway gravel, bugs, and thermal shocks without fracturing.

• Advanced Clear Hard-Coat: Factory-treated to resist environmental hazing, chemical washes, and surface abrasions over thousands of hours of operation.

• Preserved Beam Performance: The non-optic structure delivers a clean, restriction-free path for maximum forward light transmission (up to 250,000 candela on Parmetheus Plus models).

• Alignment Tab Built-In: Features an integrated alignment tab that matches the clocking notch on the lighthead chassis for quick, foolproof installation.

Specifications

Installation Note: Per Whelen's STC installation manual, the lens should be seated cleanly into the light assembly slot using the alignment tab. When doing a lens swap, always inspect your PAR-46 Black Gasket (P/N: 38-0240063-00) for dry rot or compression set to maintain a proper weather seal.