Harley-Davidson FLHR Road King Headlight Bulb Size

Harley-Davidson FLHR Road King headlight bulbs utilize H9 and 9003 sizes for high beam operation and H11 and 9003 sizes for low beam operation, with each bulb size specified for optimal illumination. The replacement chart covers 1994 through 2020 model years and details the corresponding bulb specifications across the vehicle production range.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2014-2020	H9	H9	Check Price
1994-2013	9003	H4	Check Price

Low Beam Headlight

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2014-2020	H11	H11	Check Price
1994-2013	9003	H4	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-5 base. Also approved in the US. 12V, 65W.	H9	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-2 base. Also approved in the US. 12V, 55W.	H11	Check Price

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Additional Notes

The Harley-Davidson FLHR Road King uses two distinct bulb types across its headlight system depending on the model year: the 9003 for earlier years and separate H9 and H11 bulbs for later years.
The 9003 is an ANSI-standard dual-filament halogen bulb rated at 12V with a 60W high beam filament and a 55W low beam filament, using a P43t base. Because it contains both filaments in a single unit, it serves both high and low beam functions from one bulb.
The H9 is an ECE-standard single-filament halogen bulb rated at 12V and 65W, using a PGJ19-5 base. Operating at a higher wattage than the high beam filament of the 9003, it is approved for use in both European and US markets.
The H11 is an ECE-standard single-filament halogen bulb rated at 12V and 55W, using a PGJ19-2 base. It is also approved for use in the US market alongside its European certification.
On the Harley-Davidson FLHR Road King, model years 1994-2013 use the 9003 bulb for both high and low beam functions, reflecting the dual-filament nature of that bulb type.
From 2014-2020, the Road King headlight system uses dedicated single-filament bulbs for each function: the H9 for the high beam and the H11 for the low beam, requiring two separate bulbs where earlier models required one.
The H9 and H11 bulbs share a similar physical form factor but have different base types, PGJ19-5 and PGJ19-2 respectively, making them non-interchangeable with each other despite their visual similarity.
The 9003 bulb uses a P43t base, which is physically incompatible with the PGJ19-series bases used by the H9 and H11, meaning 9003 bulbs cannot be substituted into 2014-2020 Road King headlight housings without modification.