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A/C Compressor
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2021 - 2025 Chevrolet Trailblazer AC Compressor (OEM)

✓ IN STOCK
$79.95

ℹ️ Product Notes

This is a used AC Compressor assembly. It fits vehicles with a 1.2L engine.

Fits 1.2L 3-cylinder engines only. Check your engine size on the sticker under the hood before buying.
Condition: Excellent (A)
Like new, minimal to no wear
2,557 miles
Odometer reading when part was removed
See Other Chevrolet Trailblazer A/C Compressors
SKU #
9584715-46301-286

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
L SUV 2021 - 2022 L3 1.2L Turbo FWD | Automatic CVT | Fits 1.2L engine only
LS SUV 2021 - 2024 L3 1.2L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.2L engine only
LT SUV 2021 - 2024 L3 1.2L Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.2L engine only
LS SUV 2025 L3 1.2L FLEX Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.2L engine only
LT SUV 2025 L3 1.2L FLEX Turbo AWD/FWD | Automatic & Automatic CVT | Fits 1.2L engine only
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

Is your car's AC blowing warm air? A failing AC compressor is often the culprit. Here's how to tell if yours is going bad:

  • Weak or Warm Air: The most common sign. The AC struggles to cool the air, or blows warm air instead of cold.
  • Strange Noises: Grinding, squealing, or rattling sounds coming from the compressor.
  • Clutch Problems: The compressor clutch might not engage, or it might cycle on and off rapidly.
  • Refrigerant Leaks: Visible leaks of refrigerant oil around the compressor.
  • Reduced AC Performance: The AC works, but not as well as it used to.

Testing the AC Compressor:

  1. Check the refrigerant level. Low refrigerant can mimic compressor problems.
  2. Inspect the compressor clutch. Make sure it engages when the AC is turned on.
  3. Listen for unusual noises coming from the compressor.
  4. Use a manifold gauge set to check the high and low side pressures. Abnormal pressures indicate a compressor issue.

Common Causes of Failure:

  • Refrigerant Leaks: Low refrigerant levels starve the compressor of lubrication, leading to damage.
  • Contamination: Debris in the AC system can damage the compressor's internal components.
  • Overheating: Excessive heat can cause the compressor to seize.
  • Age and Wear: Like any mechanical part, AC compressors wear out over time.
  • Improper Lubrication: Using the wrong type or amount of refrigerant oil.

Buyer's Checklist

What to Look For:

  • Compatibility: Ensure the compressor is specifically designed for your 2020-2025 Buick Encore GX, Envista, Trailblazer, or Trax.
  • Condition: Carefully evaluate the condition of the compressor, especially if buying used or refurbished.
  • Warranty: Check if the compressor comes with a warranty.
  • Brand Reputation: Consider the reputation of the seller or manufacturer.

Quality Indicators:

  • OEM Markings: Look for OEM markings on used or refurbished compressors.
  • Testing Reports: Ask for testing reports or documentation for used or refurbished compressors.
  • New Components: Refurbished compressors should have new seals, bearings, and other wear items.
  • Construction Quality: Inspect the overall construction and materials of new aftermarket compressors.

What's Included:

  • The AC compressor itself.
  • Sometimes, a small amount of refrigerant oil is pre-filled.
  • Installation instructions may or may not be included.
  • Seals and gaskets may or may not be included.

Installation Overview

Difficulty Level:

Replacing an AC compressor is generally considered a medium to high difficulty job.

Estimated Time:

Expect the job to take 3-6 hours, depending on your experience.

Special Tools Needed:

  • Refrigerant recovery machine
  • Vacuum pump
  • Manifold gauge set
  • AC system flush kit
  • Basic hand tools (sockets, wrenches, screwdrivers)
  • Torque wrench

Critical Steps and Tips:

  1. Recover the refrigerant properly using a recovery machine. It is illegal to vent refrigerant into the atmosphere.
  2. Flush the AC system to remove any debris or contaminants.
  3. Replace the receiver drier or accumulator.
  4. Add the correct type and amount of refrigerant oil.
  5. Evacuate the system with a vacuum pump to remove air and moisture.
  6. Charge the system with the correct amount of refrigerant.

DIY or Professional Installation?

Professional installation is recommended. Working with refrigerant requires specialized equipment and knowledge. Improper installation can damage the compressor and other AC system components.

Buying Options

Here's a comparison of your AC compressor buying options:

  • Used OEM: Genuine factory parts, tested and inspected, at a lower price. A great value option.
  • Refurbished OEM: Factory parts professionally restored with new components for reliable performance.
  • New Aftermarket: Brand new third-party parts built to meet or exceed OE specifications.

Used OEM:

  • Offers the best value for budget-conscious buyers.
  • Genuine factory parts ensure proper fit and function.
  • Thoroughly tested and inspected for reliability.

Refurbished OEM:

  • Provides a balance of quality and affordability.
  • Professionally restored with new components.
  • Offers reliable performance comparable to new.

New Aftermarket:

  • Brand new parts built to OE specifications.
  • Offers peace of mind with a new component.
  • Wide range of brands and price points available.

Typical Lifespan

A properly maintained AC compressor typically lasts 8-12 years or 100,000-150,000 miles.

Factors Affecting Longevity:

  • Refrigerant Level: Maintaining the correct refrigerant level is crucial.
  • System Cleanliness: Keeping the AC system clean and free of debris.
  • Driving Habits: Excessive idling or short trips can shorten compressor life.
  • Climate: Extreme temperatures can put extra stress on the compressor.
  • Regular Maintenance: Periodic AC system inspections and maintenance.

Price Ranges

Here's a general idea of AC compressor price ranges:

  • Used OEM: $150 - $300
  • Refurbished OEM: $250 - $450
  • New Aftermarket: $300 - $600

Labor Cost:

Professional installation typically costs $200 - $500, depending on the shop and location.

Total Job Cost Estimates:

  • DIY (parts only): $150 - $600
  • Professional Installation: $350 - $1100

Vehicle-Specific Notes

Some 2020-2025 Buick Encore GX, Envista, Trailblazer, and Trax models have reported issues with the factory AC compressor clutch failing prematurely. Check for any Technical Service Bulletins (TSBs) related to AC compressor issues for your specific model year. Some owners have also reported refrigerant leaks at the compressor fittings.

Verification After Install

After installing the new AC compressor, verify proper operation:

  • Check Air Temperature: Use a thermometer to measure the air temperature coming from the vents. It should be significantly cooler than the ambient temperature.
  • Listen for Compressor Noise: Listen for any unusual noises coming from the compressor.
  • Observe Clutch Engagement: Watch the compressor clutch to ensure it engages and disengages smoothly.
  • Check System Pressures: Use a manifold gauge set to verify the high and low side pressures are within the specified range.
  • Inspect for Leaks: Check all fittings and connections for refrigerant leaks.

FAQ

Q: How do I know if it's the AC compressor or something else?
A: Common signs of a failing compressor include weak or warm air, strange noises, and clutch problems. Have a professional diagnose the system to be sure.

Q: Can I replace the AC compressor myself?
A: Replacing an AC compressor requires specialized tools and knowledge. Professional installation is recommended.

Q: What happens if I don't replace the receiver drier when I replace the compressor?
A: The old receiver drier may contain contaminants that can damage the new compressor. It's best to replace it.

Q: How much refrigerant oil do I need to add?
A: The correct amount of refrigerant oil varies depending on the vehicle and compressor. Consult your vehicle's service manual or a professional.

Q: What kind of warranty comes with a used AC compressor?
A: Warranty coverage varies depending on the seller. Check the warranty terms before you buy.

Part Specifications

OEM Part Numbers:

  • GM: 42733191, 42769583

Fits Years: 2021 2022 2023 2024 2025

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