8-Pin Headlight Connector PB625-08027 / PB621-08020 for Hyundai KIA — OEM Wiring Harness Plug

8-Pin Headlight Wiring Connector — OEM Replacement for Hyundai & KIA

Part Numbers: PB625-08027 / PB621-08020

Hyundai and KIA share a common electrical architecture across many of their platforms, and the headlight wiring connector is one of the most frequently replaced components in their lighting systems. Whether you're dealing with a flickering DRL, a dead low-beam, or a headlight assembly that won't communicate with the BCM, the root cause is often a degraded 8-pin headlight plug rather than the bulb or the module itself. The PB625-08027 / PB621-08020 is the OEM-specification 8-pin connector used across a wide range of Hyundai and KIA headlight harnesses — a direct-fit replacement that restores factory electrical integrity without cutting or splicing.

Technical Specifications

• Part Numbers: PB625-08027 (variant A) · PB621-08020 (variant B)
• Pin Count: 8-pin
• Housing Material: PA66 GF30 glass-filled nylon — heat-stabilized, UV-resistant
• Terminal Material: Tin-plated copper alloy — low contact resistance, corrosion-resistant
• Operating Temperature: -40°C to +125°C
• Sealing: Unsealed (matches OEM design for standard halogen/LED headlight assemblies)
• Locking Mechanism: Positive-latch retention tab — vibration-proof
• Wire Gauge Compatibility: 0.5–1.25 mm² (AWG 20–16)
• Voltage: 12V DC

Vehicle Compatibility

These connectors are used across the following Hyundai and KIA platforms:

• Hyundai Elantra — MD (2011–2015), AD (2016–2020) — headlight harness plug
• Hyundai Sonata — YF (2010–2014), LF (2015–2019) — headlight assembly connector
• Hyundai Tucson — TL (2015–2020) — front headlight wiring plug
• Hyundai Santa Fe — DM (2012–2018) — headlight harness connector
• Hyundai i30 — GD/PD generations — headlight plug
• KIA Sportage — QL (2016–2021) — headlight wiring connector
• KIA Cerato / Forte — YD (2013–2018) — headlight harness plug
• KIA Optima / K5 — JF (2015–2020) — headlight assembly connector
• KIA Sorento — UM (2015–2020) — headlight plug
• Other Hyundai/KIA models sharing the PB6xx headlight connector series

Why Headlight Connectors Fail on Hyundai & KIA

Hyundai and KIA vehicles are known for their advanced lighting systems — projector headlights, LED DRLs, and adaptive front lighting — all of which place higher thermal and electrical demands on the headlight connector than a simple halogen setup. The 8-pin configuration carries signals for low beam, high beam, DRL, position light, and in some cases turn signal and levelling motor circuits simultaneously. When the connector housing warps from heat or the terminals oxidize from moisture ingress, multiple lighting functions can fail at once, triggering dashboard warning lights and potential MOT/roadworthy failures. A new OEM-spec connector resolves all of these issues in a single repair.

Global Market & Regional Notes

Hyundai and KIA are among the top-selling automotive brands across Australia, New Zealand, UK, Ireland, South Africa, Southeast Asia (Thailand, Indonesia, Malaysia, Philippines, Vietnam), the Middle East (UAE, Saudi Arabia, Kuwait, Qatar), and Eastern Europe (Poland, Czech Republic, Hungary, Russia). The PB6xx connector series is widely stocked by auto electricians and Hyundai/KIA specialist workshops in all of these markets. In South Korea, these connectors are available through Hyundai Mobis (the OEM parts arm), and aftermarket equivalents are produced to the same specification for global distribution.

Installation Notes

• Disconnect the vehicle battery before working on headlight wiring
• Use a terminal extraction pick to remove old pins — do not pull on the wire
• Inspect wire insulation for heat damage or chafing before re-terminating
• Apply dielectric grease to terminals before insertion to prevent future oxidation
• Confirm pin orientation against the vehicle's wiring diagram — Hyundai/KIA wiring diagrams are available via the GDS (Global Diagnostic System) or GSIC portal

Package Contents

• 1 × 8-Pin Headlight Connector Housing (PB625-08027 or PB621-08020 — select variant)
• Terminals included (confirm at checkout)

Not sure which variant fits your vehicle? Provide your VIN or headlight assembly part number and we'll confirm compatibility before you order.

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