HomeWiper and Washer > Windshield Washer and Related ComponentsDorman 603-159 Washer Fluid Reservoir - Front
Part #: 603-159

Dorman 603-159 Washer Fluid Reservoir - Front

Front
⚙️ 21 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$106.60Free 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: Ford, Mercury, and Lincoln, Explorer, Mountaineer, and Aviator
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Washer Fluid Reservoir 603-159

The Dorman Washer Fluid Reservoir 603-159 is designed for reliable windshield washer fluid storage and delivery. This replacement reservoir is compatible with select Ford, Lincoln, and Mercury models, including the Aviator, Explorer, and Mountaineer, ensuring proper fit and function.

  • Constructed from durable plastic material for long-lasting use
  • Includes reservoir cap, grommet, tubing, and level sensor for complete assembly
  • Available in black and white color combination
  • Does not include mounting hardware or mounting bracket
  • Compatible with Ford Aviator, Explorer, and Mercury Mountaineer models

Detailed Product Description

This Dorman Washer Fluid Reservoir (part number 603-159) is engineered to meet or exceed OEM specifications for windshield washer systems. Made from sturdy plastic, it resists corrosion and damage from washer fluid exposure. The package includes essential components such as the reservoir cap, grommet, tubing, and a level sensor to monitor fluid levels accurately. The black and white color scheme matches original equipment appearance. While mounting hardware and brackets are not included, this reservoir is designed for straightforward installation in compatible Ford, Lincoln, and Mercury vehicles.

Compatible Vehicles and Applications

This washer fluid reservoir is specifically compatible with the following vehicles:

  • Ford Aviator
  • Ford Explorer
  • Mercury Mountaineer

Using the correct reservoir ensures proper fitment and function within the windshield washer system of these models.

Common Issues Addressed by This Reservoir

  • Cracked or leaking washer fluid reservoir
  • Malfunctioning or missing fluid level sensor
  • Damaged or missing reservoir cap causing fluid contamination
  • Inadequate fluid delivery due to faulty reservoir components
  • Replacement of worn or deteriorated tubing and grommets

Installation Notes and Tips

  • Verify vehicle compatibility with Ford Aviator, Explorer, or Mercury Mountaineer before installation
  • Ensure all included components (cap, grommet, tubing, level sensor) are properly connected
  • Mounting hardware and brackets are not included; reuse existing parts or source separately if needed
  • Handle the plastic reservoir carefully to avoid damage during installation
  • Check for leaks and proper fluid level sensor operation after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet industry standards for quality and durability. The Washer Fluid Reservoir 603-159 undergoes rigorous testing to ensure reliable performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number603-159
ColorBlack and White
MaterialPlastic
Mounting Bracket IncludedNo
Mounting Hardware IncludedNo
Package ContentsReservoir; Cap; Grommet; Tubing; Level Sensor
Reservoir Cap IncludedYes

This part fits 21 vehicles. Search below:

YearMakeModel# DoorsPositionNotes
2010FordExplorerFront
2010MercuryMountaineerFront
2009FordExplorerFront
2009MercuryMountaineerFront
2008FordExplorerFront
2008MercuryMountaineerFront
2007FordExplorerFront
2007MercuryMountaineerFront
2006FordExplorerFront
2006MercuryMountaineerFront
2005FordExplorerFront
2005LincolnAviatorFront
2005MercuryMountaineerFront
2004FordExplorerFront
2004LincolnAviatorFront
2004MercuryMountaineerFront
2003FordExplorer4 DoorFront
2003LincolnAviatorFront
2003MercuryMountaineerFront
2002FordExplorer4 DoorFront
2002MercuryMountaineerFront

* 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:

3L2Z17618AA

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