Standard Ignition Headlight Dimmer Switch DS-991
Standard Ignition Headlight Dimmer Switch DS-991 - view 2
Standard Ignition Headlight Dimmer Switch DS-991 - view 3
Standard Ignition Headlight Dimmer Switch DS-991
Standard Ignition Headlight Dimmer Switch DS-991 - view 2
Standard Ignition Headlight Dimmer Switch DS-991 - view 3

Standard Ignition Headlight Dimmer Switch P/N:DS-991

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$107.99
MPN: DS-991
Item Package Quantity: 1
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Standard Ignition Headlight Dimmer Switch P/N:DS-991
Standard Ignition Headlight Dimmer Switch P/N:DS-991
$107.99

Take charge of switching between low and high beams with this Standard Ignition switch, the DS-991 Headlight Dimmer Switch. It is a direct-fit replacement for the 1988-1989 Dodge B150, Dodge B250 and Dodge B350. See the Buyer's Guide tab for engine-specific details.

The dimmer switch changes the headlights between the low-beam and high-beam circuits. Standard Ignition backs this one with the following features:

  • Quality control throughout: As a global maker of original equipment ignition products, Standard Ignition keeps full quality control over manufacturing, from componentry to the finished product.
  • Copper alloy conductors: Designed for superior electrical conductivity with low resistive losses.
  • 100% tested: Standard Ignition tests its parts to verify both mechanical and electrical switching performance.
  • Robust design: Built from high-grade materials to meet the demands of today's service professional.

Signs a dimmer switch may need replacing include headlights that won't change between low and high beam, beams that flicker or drop out, and high beams that stay on. If a failed dimmer switch is the cause, DS-991 replaces it. Check the lighting circuit first, because wiring, bulbs or other components can cause similar symptoms.

Interchange: DS165 · 4360145 · DS175

This part cross-references / interchanges with the following part numbers:

DS165, 4360145, DS175

Frequently Asked Questions

What does a headlight dimmer switch do?

It selects between the low-beam and high-beam headlight circuits when you operate it, so you can change beams as driving conditions require.

Which vehicles is the DS-991 listed for?

It is listed for the 1988-1989 Dodge B150, Dodge B250 and Dodge B350. See the Buyer's Guide tab for engine-level details.

What are signs the dimmer switch may need replacing?

Headlights that won't change between low and high beam, flickering beams, or high beams that stay on may be signs. Diagnose the circuit first, since other parts can cause the same symptoms.

Is the Standard Ignition DS-991 tested?

Yes. Standard Ignition states that its parts are 100% tested to verify both mechanical and electrical switching performance.

What part numbers does DS-991 interchange with?

DS-991 is listed as interchanging with DS165, 4360145 and DS175.

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