Put headlamp control back at the driver's fingertips with the Standard Ignition Headlight Switch DS-647. It is a direct-fit replacement for the listed applications, including the 1990-1994 Chevrolet C1500 and K1500, 1990-1994 GMC C2500 and K2500, 1992-1994 Chevrolet Blazer and GMC Yukon, and 1997-2002 Chevrolet C6500 Kodiak and GMC C6500 Topkick. See the Buyer's Guide tab for the full list of 32 applications and engine details.
The headlight switch is the driver's control for the vehicle's headlamp circuit. A worn or failed switch may be the cause if the headlights won't come on, flicker or cut out intermittently, or the switch feels loose or inconsistent. Diagnose the lighting circuit before replacing.
Interchange: 2-HLS24
2HLS24 · S2125 · HLS24 · SW932 · HL6845 · 10470881 · 15693540 · 15693548 · 19245374 · HL6845SB · DS647T
This part cross-references / interchanges with the following part numbers:
What vehicles does the Standard DS-647 headlight switch fit?
It fits 32 listed applications, including 1990-1994 Chevrolet C1500 and GMC K1500 pickups, the 1992-1994 Chevrolet Blazer and GMC Yukon, and the 1997-2002 Chevrolet C7500 Kodiak. See the Buyer's Guide tab for the full list.
What are signs a headlight switch may need replacing?
Headlights that won't turn on, flicker, or cut out intermittently may indicate a failing switch. Wiring, fuses, or bulbs can cause the same symptoms, so diagnose the circuit before replacing.
Is the DS-647 tested before it ships?
Yes. Standard 100% tests its switches to verify both mechanical and electrical switching performance.
What are the conductors in this switch made of?
The DS-647 uses copper alloy conductors, which Standard specifies for electrical conductivity with low resistive losses.
Which part numbers does the DS-647 interchange with?
It interchanges with 2-HLS24, S2125, HLS24, SW932, HL6845, HL6845SB, 10470881, 15693540, 15693548, 19245374, and DS647T.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
