Dorman 603-863 Washer Fluid Reservoir - Front

Brand Dorman 603-863
Position Front
Material Plastic
Material Plástico
Length 485
Color Black
Color Negro
Color Noir
Hoses Included No
Hoses Included Non
Attachment Type Bolt on
Attachment Type Con perno
Width 312.6
Mounting Hardware Included No
Mounting Hardware Included Non
Height 269.7
Hose Port Diameter 6
Washer Pump Included Oui
Washer Pump Included
Washer Pump Included Yes
Fluid Level Sensor Oui
Fluid Level Sensor
Fluid Level Sensor Yes
Mounting Bracket Included Oui
Mounting Bracket Included
Mounting Bracket Included Yes
Maximum Capacity 4.5
Working Capacity 4.5
Capacity 4,5l
Capacity 4.5 l
Contenidos del paquete 1 depósito de líquido
Housing Color Black
Fits Nissan · 11 vehicles

OE direct replacement. Matches the original reservoir's fit and function.

Bolt-on installation. Attachment type simplifies replacement with no modifications needed.

Includes pump and sensor. Comes with a washer pump, fluid level sensor, and mounting bracket.

Cross-references Partslink Numbering System NI1288163, Partslink Numbering System NI1288164 and Partslink Numbering System NI1288165 for the same application. See all 4.

$124.40Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $124.40
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Washer Fluid Reservoir for Nissan Altima and Maxima

This Dorman washer fluid reservoir is a direct-fit replacement for specified Nissan applications, including the Altima and Maxima. It is built to match original equipment fit and function while handling underhood heat and engine vibration.

  • Direct replacement washer fluid reservoir for front-mounted applications
  • Plastic construction with black housing color
  • Includes washer pump, fluid level sensor, mounting bracket, and reservoir cap
  • Bolt-on attachment type for OE-style installation
  • 4.5 L working capacity
  • Hose port diameter: 6 mm

Fitment Details

  • Fits 2016-2019 Nissan Altima, front
  • Fits 2016-2019 Nissan Maxima, front
  • Fits 2014-2015 Nissan Altima, front, wo/Rear Camera Washer
  • Fits 2015 Nissan Maxima, front, From 4/15

Product Description

Dorman 603-863 is a washer fluid reservoir engineered for specified Nissan vehicles where the original reservoir has cracked, leaked, or no longer holds fluid properly. The plastic reservoir is shaped for OE-style mounting and is designed to match the fit and function of the factory unit. This part number 603-863 also cross-references 289109HM0A for the same application.

With a 4.5 L capacity, integrated washer pump, fluid level sensor, mounting bracket, and reservoir cap, this reservoir supports a complete front washer system service on Nissan Altima and Nissan Maxima models. The black housing color and bolt-on attachment help maintain a factory-style appearance and installation layout.

Common Problems This Part Can Address

  • Washer fluid leaking from a cracked reservoir
  • Low washer fluid warning caused by a damaged reservoir sensor
  • Poor windshield washer spray from a failed reservoir assembly
  • Broken mounting points or reservoir movement from vibration
  • Loss of washer fluid capacity after impact or age-related wear

Installation Notes and Tips

Verify vehicle year, model, and front application before installation. This reservoir fits 2014-2015 Nissan Altima, front, without rear camera washer, and 2015 Nissan Maxima, front, from 4/15. Transfer or connect the washer system components as required by the vehicle configuration, and confirm hose port size and mounting alignment before filling the system.

Quality Assurance

Dorman designs this reservoir to match original equipment fit and function and to withstand underhood heat and engine vibration on the listed Nissan applications. Part number 603-863 is built for direct replacement use on the specified Altima and Maxima fitments.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2019NissanAltimaFront
2019NissanMaximaFront
2018NissanAltimaAdvanceFront
2018NissanMaximaFront
2017NissanAltimaSLFront
2017NissanMaximaFront
2016NissanAltimaSLFront
2016NissanMaximaFront
2015NissanAltimaFrontwo/Rear Camera Washer
2015NissanMaximaFrontFrom 4/15
2014NissanAltimaFrontwo/Rear Camera Washer
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Partslink Numbering System — NI1288163Partslink Numbering System — NI1288164Partslink Numbering System — NI1288165289109HM0A