HomeWiper and Washer > SwitchesStandard Ignition DS-491 Windshield Wiper Switch
Part #: DS-491

Standard Ignition DS-491 Windshield Wiper Switch

⚙️ 17 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Buick, and Oldsmobile, Lumina, Regal, and Cutlass Supreme
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Reliable Wiper Switch for Buick, Chevrolet, and Oldsmobile Models

The Standard Ignition DS-491 wiper switch is designed to provide consistent and precise control of your vehicle's windshield wipers. Engineered for select Buick, Chevrolet, and Oldsmobile models, this black plastic switch ensures seamless operation and durability.

Key Features of the Standard Ignition DS-491 Wiper Switch

  • Color: Black finish for a clean, factory-style appearance
  • Connector Gender: Male for secure electrical connections
  • Terminal Quantity: 9 blade terminals for reliable wiring integration
  • Terminal Type: Blade terminals designed for easy installation and solid contact
  • Durable plastic construction to withstand daily use

Detailed Description of the DS-491 Wiper Switch

The DS-491 wiper switch from Standard Ignition is crafted with a black plastic finish that matches the interior aesthetics of Buick Cutlass Supreme, Chevrolet Lumina, and Oldsmobile Regal vehicles. Featuring nine blade terminals with a male connector, this switch offers a dependable electrical interface that supports consistent wiper function. The plastic housing provides resistance against wear and environmental factors, ensuring long-term reliability. This part number DS-491 is specifically designed to meet the original equipment specifications for the listed vehicle models, making it a suitable replacement for worn or malfunctioning wiper switches.

Common Applications and Issues Addressed

  • Restores proper windshield wiper control in Buick Cutlass Supreme, Chevrolet Lumina, and Oldsmobile Regal
  • Resolves intermittent or non-responsive wiper operation
  • Eliminates electrical connection problems caused by damaged terminals
  • Replaces switches with worn or broken plastic housing
  • Improves safety by ensuring reliable windshield visibility during adverse weather

Installation Notes and Tips

  • Ensure vehicle ignition is off before beginning installation
  • Disconnect the battery to prevent electrical shorts
  • Verify the connector gender and terminal count match the vehicle wiring harness
  • Handle blade terminals carefully to avoid bending or damage
  • Test wiper switch operation before reassembling dashboard components

Quality Assurance and Warranty Information

Standard Ignition manufactures the DS-491 wiper switch to meet strict quality standards, ensuring compatibility and durability for Buick, Chevrolet, and Oldsmobile vehicles. This part is backed by a limited warranty against defects in materials and workmanship, providing confidence in its performance and longevity.

BrandStandard Ignition
Part NumberDS-491
ColorBlack
Connector GenderMale
FinishPlastic
Terminal TypeBlade Terminals

This part fits 17 vehicles. Search below:

YearMakeModelPositionNotes
1994ChevroletLuminaN/A
1993BuickRegalN/A
1993ChevroletLuminaN/A
1993OldsmobileCutlass SupremeN/AWith Pulse Wipers
1992BuickRegalN/AWith Pulse Wipers
1992ChevroletLuminaN/AWith Pulse Wipers
1992OldsmobileCutlass SupremeN/AWith Pulse Wipers
1991BuickRegalN/AWith Pulse Wipers
1991ChevroletLuminaN/AWith Pulse Wipers
1991OldsmobileCutlass SupremeN/AWith Pulse Wipers
1990BuickRegalN/AWith Pulse Wipers
1990ChevroletLuminaN/AWith Pulse Wipers
1990OldsmobileCutlass SupremeN/AWith Pulse Wipers
1989BuickRegalN/AWith Pulse Wipers
1989OldsmobileCutlass SupremeN/AWith Pulse Wipers
1988BuickRegalN/AWith Pulse Wipers
1988OldsmobileCutlass SupremeN/Aw/ Intermittent Wiper

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1S44702600229253-64982S3088SW634WS226

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.