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Approved Aircraft Lighting

Ice Light Windows

King Air, 1900, 99 — Direct-Fit Replacement

Part Numbers 4000041-000 / 4000041-001

FAA PMA Approved

Direct-Fit Replacement

PMA PQ4159CE

Supplement 20

3-Year Warranty
Designed and Manufactured in the USA

Approved Aircraft

King Air

65-9065-A90King Air B90King Air C90C90AKing Air C90GTC90GTiKing Air E90F90King Air 100A100B100King Air 200200TKing Air 200C200CTKing Air B200B200TKing Air B200CB200CTKing Air B200GTB200CGTKing Air 300300LWKing Air B300B300C

Beechcraft

Beechcraft 1900Beechcraft 1900CBeechcraft 99Beechcraft C99

Overview

Replace brittle, yellow, and cracked ice light windows with PWI's direct-fit replacement. Designed for Beechcraft King Air aircraft, the durable plexiglass material improves ice detection speed.
PWI King Air ice light replacement window with notched corners — clear acrylic cross-shaped window blank 3 photos
Notched corners
PWI King Air ice light replacement window with square corners — clear acrylic window blank
Square corners

Why Upgrade

Durable plexiglass resists yellowing, brittleness, and cracking. Improves ice detection and visibility. Pair with PWI's LED Ice Light for far better and faster ice detection.

Installation

No modifications required. Replaces OEM part numbers 101-360190-0001 and 50-361127-5.

Two Options

Available in notched corner (4000041-000) or square corners (4000041-001) window styles matching the original ice light window.

Direct-Fit Replacement

Even the powerful PWI LED Ice Light is limited by an old yellow and crazed window that barely allows light through.

Find the Right Part for Your Aircraft

Original ice light windows had either notched corners or square corners. Check your existing window to identify the correct replacement.

Window Style OEM Part Part Number
Notched Corners 101-360190-0001 4000041-000
Square Corners 50-361127-5 4000041-001

Approved for King Air, 1900 and 99 aircraft. See the list below. Get a quote →

Product Specs

Part Number (Notched)4000041-000
Part Number (Square)4000041-001
MaterialPlexiglass
InstallationDirect-fit, no modifications
Replaces (Notched)Beechcraft 101-360190-0001
Replaces (Square)Beechcraft 50-361127-5

Key Benefits

Resists yellowing, brittleness, and crazing
Improved ice detection speed
Direct-fit replacement — no mods
Two window styles matching original designs
Pair with PWI LED Ice Light for best detection performance
Form 8130-3 available on request
Lead times subject to parts availability

Part Numbers & Serial Number Compatibility

For quote and fit verification, provide aircraft model and serial number to get a quote.

King Air ModelPart NumberSerial Numbers
King Air B200 — Notched4000041-000BB-734BB-793BB-829BB-854 thru BB-870BB-874 thru BB-891BB-894 thru BB-911BB-913 thru BB-2019
King Air B200T — Notched4000041-000BT-23 thru BT-27BT-29 thru BT-43
King Air B200C — Notched4000041-000BL-37 thru BL-57BL-61 thru BL-112BL-118 thru BL-171
King Air B200CT — Notched4000041-000BN-2 thru BN-4BN-392
King Air B200GT / B200CGT — Notched4000041-000BY-1 and upBZ-1 and up
King Air B300 / B300C with CMS — Notched4000041-000FL-601FL-672FL-688 and upFM-36 and up
King Air B300 / B300C without CMS — Notched4000041-000FL-1 and upFM-1 and up
King Air 65-90 — Square4000041-001LJ-1 thru LJ-75LJ-77 thru LJ-113
King Air 65-A90 — Square4000041-001LJ-76LJ-144 thru LJ-317
King Air B90 — Square4000041-001LJ-318 thru LJ-501
King Air C90 / C90A / C90GT / E90 — Square4000041-001LJ-502 and upLW-1 thru LW-347
King Air C90GTi — Square4000041-001LJ-67LJ-69 thru LJ-76LJ-1847LJ-1853 thru LJ-1863LJ-1865
King Air F90 — Square4000041-001LA-2 thru LA-236
King Air 100 — Square4000041-001B-2 thru B-89B-93
King Air A100 — Square4000041-001B-1B-90 and up, except B-93
King Air B100 — Square4000041-001BE-1 and up
King Air 200 — Square4000041-001BB-2 thru BB-733BB-735 thru BB-792BB-794 thru BB-828BB-830 thru BB-853BB-871 thru BB-873BB-892BB-893BB-912
King Air 200T — Square4000041-001BT-1 thru BT-22
King Air 200C — Square4000041-001BL-1 thru BL-36
King Air 200CT — Square4000041-001BN-1
King Air 300 / 300LW — Square4000041-001FA-1 and up
1900 / 1900C — Square4000041-001UA-1 and upUB-1 and up
99 Airliner — Square4000041-001U-1 thru U-164, except U-50
C99 Airliner — Square4000041-001U-50U-165 and up

Note: Confirm window corner style (Notched or Square) before ordering. For quote and fit verification, provide aircraft model and serial number.

Alternate Part Numbers

101-360190-000150-361127-5

More Exterior LED Lighting

Get Started

Ready to upgrade your King Air ice light windows?

Include aircraft model and serial number for faster pricing.