Suzuki Swift Headlights: Specs, Fitment & Common Faults

Bulb type, unit part numbers, and the faults that actually cause that flickering or dim light you've noticed.

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OEM Part Number: confirm via VIN — aftermarket LH TYC 20-0700-05-2 / RH Van Wezel 5226962

Accuracy note: Covers the Suzuki Swift (2017-) as listed in the UK aftermarket catalogues. Headlights are sold by side (passenger / nearside = LH, driver's / offside = RH on a UK car) and by lamp type — halogen, xenon (D1S / D3S) and LED or full-LED units are not interchangeable, and DRL, cornering and levelling options change the part number again. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; genuine numbers are shown only where a listing quotes one. Check the lamp type and traffic side (UK right-hand-traffic units, not LHD) against your VIN, and expect xenon / LED and adaptive units to need levelling adjustment or coding after fitting.

Passenger side (LH / nearside) headlight — aftermarket	Van Wezel 5226961 (H4, PY21W, W5W, electric, with position light); Van Wezel 5226965 (H4, PY21W, electric, without position light); Alkar 2761987 (H4, PY21W, W5W, electric, motor not included); Alkar 2741987 (H4, WY21W, W5W, electric); Abakus 218-1170L-LD-EM (H4, PY21W, W5W, electric, no motor); TYC 20-0700-05-2 (H4, electric, no motor)
Driver's side (RH / offside) headlight — aftermarket	Van Wezel 5226962 (H4, PY21W, W5W, electric, with position light); Van Wezel 5226966 (H4, PY21W, electric, without position light); Alkar 2762987 (H4, PY21W, W5W, electric, motor not included); Alkar 2742987 (H4, WY21W, W5W, electric); Abakus 218-1170R-LD-EM (H4, PY21W, W5W, electric, no motor); Diederichs 6414080 (H4, electric, no motor)
Bulb types	dipped/main H4, indicator PY21W (WY21W on some), sidelight W5W; Diederichs 6416585/6416586 list H9
Genuine (OE) numbers quoted	None quoted in catalogue listings — order genuine units against your VIN
Fitment notes	Listed units are halogen only, with electric levelling and no motor in most; the Diederichs H9 pair (6416585 right/left not stated, 6416586) is the dearer, dynamic-indicator version and sides are not stated for it.

A Genuinely Important UK Rule Worth Knowing Before You Buy — Suzuki Swift Headlights

If your Swift has factory-fitted halogen headlamp housings, converting them to fit LED bulbs is treated as a definite MOT failure under the current inspection manual — this isn't a grey area or a minor advisory, since a housing designed for halogen doesn't distribute an LED bulb's light output correctly, which can genuinely dazzle oncoming drivers. If you want a genuine LED upgrade, the correct route is a complete headlight unit designed for LED from the factory, not a bulb swap into an existing halogen housing.

Before you buy: matrix LED, adaptive, and cornering headlight systems often require electronic coding to the car after a unit swap, even for a genuine like-for-like replacement — a headlight that isn't recognised by the car's electronics can trigger warning lights or fail to auto-level correctly. Check whether your specific trim has one of these systems before assuming a straightforward bulb-in, bulb-out job.

Suzuki Swift Headlights: Watch: Replacing It

🎬 Watch: How to change the front indicator bulb on a 2017-2025 Suzuki Swift

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Front indicator bulb; headlight bulb alt K-RsYDHk4hI (generation unverified)

Suzuki Swift Headlights: What It Does

Precise beam angling to light the road without dazzling oncoming traffic is the Suzuki Swift's headlight unit's core job, housing the main and dipped beams — or LED/matrix modules on higher trims. Because it often also integrates the daytime running light and front indicator, both the part number and repair complexity increase accordingly.

Suzuki Swift Headlights: Generations & Headlight Type

Standard trims	Halogen as standard
Sport/higher trims	LED headlights become available on higher trims and more recent model years, genuinely a different assembly from the halogen units on lower trims

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Suzuki Swift Headlights: Common Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Headlights Guide for the four bulb technologies and how they differ, UK law on aim and modifications, common faults to check for, how difficult this job is to DIY, and confirming fitment against your VIN.

More Suzuki Headlights

The same part, covered across other Suzuki models.