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Engine Coolant Reservoir
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.

2021 - 2025 Chevrolet Trailblazer Coolant Reservoir (OEM)

✓ IN STOCK
$95.95

ℹ️ Product Notes

This is a used part. It has no damage. This part is for a 4-door vehicle with a 1.2L engine and an automatic transmission.

Fits 1.2L and 1.3L turbo engines. Check your engine size on the emissions sticker under the hood. Does not include the pressure cap.
Condition: Excellent (A)
Like new, minimal to no wear
38,774 miles
Odometer reading when part was removed
See Other Chevrolet Trailblazer Engine Coolant Reservoirs
SKU #
792068401-70201-176

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:

Chevrolet
Trailblazer 2021-2025 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
ACTIV SUV 2021 - 2025 L3 1.3L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
L SUV 2021 - 2022 L3 1.2L Turbo FWD | Automatic CVT | Fits 1.3L turbo engine
LS SUV 2021 - 2024 L3 1.2L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
LS SUV 2021 - 2025 L3 1.3L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
LT SUV 2021 - 2024 L3 1.2L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
LT SUV 2021 - 2025 L3 1.3L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
RS SUV 2021 - 2025 L3 1.3L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
LS SUV 2025 L3 1.2L FLEX Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
LT SUV 2025 L3 1.2L FLEX Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.3L turbo engine
2023

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

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 of a Failing Coolant Reservoir

  • Low coolant level warning light is on, even after adding coolant.
  • Visible coolant leaks around the reservoir or underneath the vehicle.
  • Overheating engine.
  • Sweet smell coming from the engine compartment.
  • Cracks or discoloration on the coolant reservoir.

Testing the Coolant Reservoir

  1. Pressure Test: A cooling system pressure tester can reveal leaks in the reservoir.
  2. Visual Inspection: Carefully check the reservoir for cracks, especially around seams and hose connections.
  3. Coolant Level Check: Monitor coolant levels to see if they drop rapidly, indicating a leak.
  4. Cap Test: A faulty cap can prevent the system from pressurizing correctly, leading to coolant loss. Test the cap's pressure rating.

Common Failure Causes

  • Age and wear: Plastic becomes brittle over time due to heat and pressure.
  • Overheating: Excessive heat can weaken the reservoir material.
  • Pressure: Constant pressure and pressure spikes can cause cracks.
  • Improper coolant: Using the wrong type of coolant can corrode the reservoir.

Buyer's Checklist

What to Look For

  • Material: Ensure the reservoir is made of durable, heat-resistant plastic.
  • Fit: Verify it is designed for your specific vehicle model and year.
  • Condition: Check for cracks, leaks, or damage, especially with used parts.
  • Cap: Make sure the cap is included and in good working order.

Quality Indicators

  • OEM markings: Original Equipment Manufacturer parts are generally higher quality.
  • Reputation: Check reviews or ratings of the part or seller.
  • Warranty: A warranty indicates the seller's confidence in the part's quality.

What's Included

  • The coolant reservoir itself.
  • A new cap (sometimes).
  • Sometimes, a coolant level sensor.

Installation Overview

Difficulty Level and Estimated Time

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

Special Tools Needed

  • Screwdrivers (various sizes)
  • Pliers
  • Drain pan
  • Coolant (compatible with your vehicle)

Critical Steps and Tips

  1. Safety First: Allow the engine to cool completely before starting.
  2. Drain Coolant: Partially drain the cooling system to prevent spills.
  3. Disconnect Hoses: Carefully disconnect the hoses connected to the reservoir.
  4. Remove Reservoir: Unbolt or unclip the old reservoir and remove it.
  5. Install New Reservoir: Install the new reservoir and reconnect the hoses.
  6. Refill Coolant: Refill the cooling system with the correct type of coolant.
  7. Bleed System: Bleed any air from the cooling system.

DIY or Professional Installation?

  • DIY is possible for mechanically inclined individuals.
  • Professional installation is recommended if you are not comfortable working on your car's cooling system.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

  • Used OEM: Genuine factory parts, tested and inspected, at significantly lower prices.
  • Refurbished OEM: Factory parts professionally restored with new components.
  • New Aftermarket: Brand new third-party parts built to OE specs.

Used OEM

  • Best value option.
  • Genuine factory part.
  • Tested and inspected for functionality.
  • Lower price compared to new.

Refurbished OEM

  • Factory part restored to like-new condition.
  • May include new components.
  • Reliable performance.

New Aftermarket

  • Brand new part.
  • Built to meet or exceed OE specifications.
  • Wide range of brands and price points.

Typical Lifespan

How Long This Part Normally Lasts

  • Typically lasts 5-10 years or 100,000-150,000 miles.

Factors That Affect Longevity

  • Climate: Extreme temperatures can shorten lifespan.
  • Coolant type: Using the wrong coolant can cause corrosion.
  • Maintenance: Regular coolant flushes can extend lifespan.
  • Driving habits: Aggressive driving can put more stress on the cooling system.

Price Ranges

Budget vs Mid-Range vs Premium Options

  • Used OEM: $30 - $75
  • Refurbished OEM: $50 - $100
  • New Aftermarket: $40 - $120

Labor Cost Considerations

  • Labor costs typically range from $50 - $150, depending on the shop and location.

Total Job Cost Estimates

  • DIY: $30 - $120 (parts only)
  • Professional Installation: $80 - $270 (parts and labor)

Vehicle-Specific Notes

Known Issues

  • Some models have reported cracking near the hose connections.
  • Check for coolant leaks after driving in extreme heat.

TSBs or Common Complaints

  • There may be Technical Service Bulletins (TSBs) related to coolant leaks in the cooling system. Check with your dealer or online resources.

Verification After Install

How to Confirm Proper Operation

  • Check coolant level after driving.
  • Monitor engine temperature gauge.
  • Inspect for leaks around the reservoir and hoses.

What to Look/Listen For

  • No coolant leaks.
  • Stable engine temperature.
  • No overheating.
  • No coolant warning lights.

FAQ

Q: How do I know if my coolant reservoir is leaking?
A: Look for visible coolant leaks, a low coolant level warning light, or a sweet smell coming from the engine compartment.

Q: Can I drive with a cracked coolant reservoir?
A: It is not recommended. A cracked reservoir can cause coolant loss and lead to overheating, which can severely damage your engine.

Q: What type of coolant should I use?
A: Use the coolant specified in your vehicle's owner's manual. Using the wrong coolant can damage the cooling system.

Q: How often should I replace my coolant reservoir?
A: Replace it if it is cracked, leaking, or damaged. Otherwise, inspect it regularly for signs of wear.

Q: Is it easy to replace the coolant reservoir myself?
A: It's generally a straightforward repair, but requires some mechanical knowledge and basic tools. If you're not comfortable, a professional can handle it.

Part Specifications

OEM Part Numbers:

  • GM: 13530506, 13537034, 13545831

Fits Years: 2021 2022 2023 2024 2025

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