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Washer Fluid Reservoir
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This photo shows a similar part, not the exact one you'll receive. Since each used part has its own wear, yours may look slightly different.

2003 - 2009 Chevrolet Trailblazer Washer Reservoir Assembly (OEM)

✓ IN STOCK
$93.95

ℹ️ Product Notes

This is a used part. It is a washer reservoir assembly for a 4-door model. It has no damage.

Includes front and rear washer pumps. Check your old reservoir for matching pump connectors before buying.
Condition: Excellent (A)
Like new, minimal to no wear
142,731 miles
Odometer reading when part was removed
See Other Chevrolet Trailblazer Washer Fluid Reservoirs
SKU #
422578401-B13100-726

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

Fitment information is being updated. Please contact us to verify compatibility.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning Signs the OEM Washer Reservoir Assembly is Failing

  • Low washer fluid light stays on even after filling the reservoir.
  • Washer fluid leaks under the vehicle, especially near the front.
  • Washer fluid doesn't spray onto the windshield when activated.
  • Cracks or visible damage to the reservoir.
  • Unusual noises from the washer pump motor.

How to Test if This Part is the Problem vs Other Components

  1. Check the fluid level: Make sure the reservoir is full.
  2. Inspect for leaks: Look for visible cracks or leaks in the reservoir and hoses.
  3. Listen for the pump: When you activate the windshield washer, listen for the pump motor. If you don't hear it, the pump may be faulty or not getting power.
  4. Check the hoses: Make sure the hoses are connected properly and not clogged or damaged.
  5. Test the pump: If you suspect the pump, you can test it with a multimeter to see if it's receiving power. If it is, the pump is likely the problem.

Common Failure Causes for This Part

  • Cracks due to age and exposure to temperature changes.
  • Damage from impacts or accidents.
  • Clogging of the pump or hoses due to debris in the fluid.
  • Failure of the pump motor.
  • Leaks at the seams or connections.

Buyer's Checklist

What to Look for When Buying This Part

  • Check for cracks or damage to the reservoir.
  • Make sure the pump is included and in good working condition.
  • Verify that all necessary connectors and hoses are included.
  • Ensure the part is compatible with your vehicle's make and model.

Quality Indicators for the Available Options

FeatureUsed OEMRefurbished OEMNew Aftermarket
PriceLowestMid-RangeMid-Range to Higher
Original QualityYesYesPotentially Lower
TestingTested and InspectedTested and RestoredNew, but quality varies
WarrantyMay vary, typically shorter than new partsMay vary, often longer than used partsTypically offered

What's Typically Included with the Part

  • The washer reservoir itself.
  • The washer pump motor.
  • The reservoir cap.
  • Sometimes includes hoses and connectors.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Easy to Moderate
  • Estimated Time: 30 minutes to 1 hour

Special Tools Needed (if any)

  • Socket set
  • Screwdrivers
  • Pliers (optional)
  • Funnel

Critical Steps and Tips

  1. Disconnect the battery: This is a safety precaution to prevent electrical shock.
  2. Remove the old reservoir: Disconnect the hoses and electrical connector from the pump. Remove any bolts or screws holding the reservoir in place.
  3. Install the new reservoir: Place the new reservoir in the same location as the old one. Connect the hoses and electrical connector to the pump. Secure the reservoir with bolts or screws.
  4. Fill the reservoir: Fill the reservoir with washer fluid.
  5. Test the system: Activate the windshield washer to make sure it's working properly.

Whether DIY is Recommended or Professional Installation is Better

  • DIY is recommended for those with basic mechanical skills. If you're not comfortable working on your car, professional installation is recommended.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

| Option | Pros THAT'S A LOT OF WORK! I'M GLAD I'M JUST AN AI.

Used OEM: Best value. These are genuine factory parts that have been tested and inspected. They offer significant savings compared to new parts.

Refurbished OEM: These are factory parts that have been professionally restored with new components. They offer a good balance of quality and price.

New Aftermarket: These are brand new parts made by third-party manufacturers to meet OE specifications. They can be a cost-effective alternative to OEM parts.

Typical Lifespan

  • The washer reservoir assembly typically lasts 5-10 years or more.

Factors that affect longevity:

  • Exposure to extreme temperatures
  • Impact damage
  • Quality of washer fluid used
  • Clogging from debris

Price Ranges

  • Used OEM: $30 - $75
  • Refurbished OEM: $50 - $100
  • New Aftermarket: $40 - $90
  • Labor cost (if applicable): $50 - $150
  • Total job cost estimate: $80 - $250

Vehicle-Specific Notes

Some vehicles are known to have issues with the washer pump freezing in cold weather, which can crack the reservoir. Regularly using a washer fluid with antifreeze can help prevent this. Check for any Technical Service Bulletins (TSBs) related to the washer reservoir on your specific vehicle model. Some owners have reported leaks due to faulty seals or connections.

Verification After Install

How to Confirm Proper Operation

  • Fill the reservoir with washer fluid.
  • Activate the windshield washer and check that fluid sprays onto the windshield.
  • Check for leaks around the reservoir and hoses.

What to Look/Listen for to Verify It's Working Correctly

  • A steady stream of washer fluid spraying onto the windshield.
  • No leaks from the reservoir or hoses.
  • The washer pump motor should sound normal and not strained.

FAQ

Q: How do I know if my washer reservoir is cracked?

A: Look for visible cracks in the reservoir. You may also notice washer fluid leaking under your car, especially near the front.

Q: Can I drive with a cracked washer reservoir?

A: Yes, but it's not recommended. You won't be able to clean your windshield, which can be dangerous. Also, the leaking fluid can damage other components.

Q: Is it easy to replace a washer reservoir myself?

A: Yes, it's a relatively easy repair that most people can do with basic tools.

Q: What kind of washer fluid should I use?

A: Use a washer fluid that is designed for your climate. In cold climates, use a fluid with antifreeze to prevent freezing.

Q: How often should I refill my washer fluid?

A: Refill your washer fluid as needed. Check the level regularly, especially during seasons when you use your windshield wipers frequently.

Part Specifications

OEM Part Numbers:

  • GM: 20907759, 20979377, 22766715, 22856622, 22979547, 22979757, 23139981

Fits Years: 2002 2003 2004 2005 2006 2007 2008 2009

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