HomeWiper and Washer > Windshield Washer and Related ComponentsDorman 603-173 Washer Fluid Reservoir - Front
Part #: 603-173

Dorman 603-173 Washer Fluid Reservoir - Front

Front
⚙️ 24 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$64.70Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Buick, and Pontiac, Impala Limited, Impala, Allure, LaCrosse, Grand Prix, and Monte Carlo
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman 603-173 Washer Fluid Reservoir

The Dorman 603-173 washer fluid reservoir is designed for reliable windshield washer system performance in select Buick, Chevrolet, and Pontiac vehicles. This replacement reservoir comes with a mounting bracket and cap, ensuring a secure fit and proper sealing for your vehicle's washer fluid system.

  • Constructed from durable white plastic material
  • Includes mounting bracket for easy installation
  • Comes with a reservoir cap to prevent fluid contamination
  • Package contains one washer fluid reservoir and one cap
  • Compatible with Buick Allure, Chevrolet Impala, Impala Limited, LaCrosse, Monte Carlo, and Pontiac Grand Prix models

Product Details and Specifications

The Dorman 603-173 washer fluid reservoir is made from sturdy plastic, providing resistance to corrosion and wear from washer fluid exposure. Its white color allows for easy fluid level inspection. The included mounting bracket ensures the reservoir is securely attached to the vehicle frame, while the cap helps maintain fluid cleanliness and prevents leaks. This part does not include mounting hardware, so existing fasteners should be reused or sourced separately. The reservoir is engineered to meet the specifications required for proper fitment in Buick Allure, Chevrolet Impala, Impala Limited, LaCrosse, Monte Carlo, and Pontiac Grand Prix models, making it a direct replacement for the original component.

Compatible Vehicles and Applications

This washer fluid reservoir is compatible with the following vehicles:

  • Buick Allure
  • Chevrolet Impala and Impala Limited
  • Buick LaCrosse
  • Chevrolet Monte Carlo
  • Pontiac Grand Prix

Using the Dorman 603-173 ensures proper fit and function for these specific models, maintaining the integrity of the windshield washer system.

Common Issues Addressed by This Washer Fluid Reservoir

  • Leaking or cracked original washer fluid reservoir
  • Inability to hold washer fluid due to damage or wear
  • Contaminated washer fluid from missing or damaged reservoir cap
  • Loose or unstable reservoir mounting causing rattling or noise
  • Reduced washer system performance due to faulty reservoir

Installation Notes and Tips

Before installation, ensure the vehicle is parked on a level surface and the ignition is off. Drain any remaining washer fluid from the old reservoir. The Dorman 603-173 includes a mounting bracket but does not come with mounting hardware; retain or replace fasteners as needed. Carefully align the reservoir with the mounting points on your Buick, Chevrolet, or Pontiac model and secure it firmly. Attach the included cap to prevent fluid leaks and contamination. After installation, refill the reservoir with appropriate washer fluid and test the system for proper operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-173 washer fluid reservoir undergoes quality checks to ensure durability and compatibility with specified Buick, Chevrolet, and Pontiac models. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number603-173
ColorWhite
MaterialPlastic
Mounting Bracket IncludedYes
Mounting Hardware IncludedNo
Package Contents1 Washer Fluid Reservoir; 1 Cap
Reservoir Cap IncludedYes

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
2016ChevroletImpala LimitedFront
2015ChevroletImpala LimitedFront
2014ChevroletImpala LimitedFront
2013ChevroletImpalaFront
2012ChevroletImpalaFront
2011ChevroletImpalaFront
2010ChevroletImpalaFront
2009BuickAllureFront
2009BuickLaCrosseFront
2009ChevroletImpalaFront
2008BuickAllureFront
2008BuickLaCrosseFront
2008ChevroletImpalaFront
2008PontiacGrand PrixFront
2007BuickAllureFront
2007BuickLaCrosseFront
2007ChevroletImpalaFront
2007ChevroletMonte CarloFront
2007PontiacGrand PrixFront
2006BuickAllureFront
2006BuickLaCrosseFront
2006ChevroletImpalaFront
2006ChevroletMonte CarloFront
2006PontiacGrand PrixFront

* 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:

19120261

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