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Secondary Air Injection Pump
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.

OEM Air Injection Pump for 2006-2009 Buick, Chevrolet, GMC, Isuzu, & Saab

✓ IN STOCK
$119.95

ℹ️ Product Notes

This is a used part. It is an Air Injection Pump assembly. It fits vehicles that have a 4.2L engine and option K18.

Fits 4.2L 6-cylinder engines only. Check your engine size on the door sticker or under the hood before buying.
Condition: Excellent (A)
Like new, minimal to no wear
97,325 miles
Odometer reading when part was removed
See All Other Secondary Air Injection Pumps
SKU #
1444511-43100-143

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:

Buick 1 model(tapclick to expand)(tapclick to hide)
Rainier 2006-2007 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
CXL SUV 2006 - 2007 L6 4.2L AWD/RWD | Automatic | Fits 4.2L 6-cylinder engine only
Chevrolet 1 model(tapclick to expand)(tapclick to hide)
Trailblazer 2006-2009 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
A SUV 2006 - 2007 L6 4.2L RWD | Automatic | Fits 4.2L 6-cylinder engine only
B SUV 2006 L6 4.2L 4WD | Automatic | Fits 4.2L 6-cylinder engine only
B SUV 2006 - 2007 L6 4.2L RWD | Automatic | Fits 4.2L 6-cylinder engine only
Base SUV 2006 - 2008 L6 4.2L RWD | Automatic | Fits 4.2L 6-cylinder engine only
LS SUV 2006 - 2007 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
LT SUV 2006 - 2009 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
Base SUV 2008 L6 4.2L 4WD | Automatic | Fits 4.2L 6-cylinder engine only
GMC 1 model(tapclick to expand)(tapclick to hide)
Envoy 2006-2009 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
SLE SUV 2006 - 2009 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
SLT SUV 2006 - 2009 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
2007 - 2008
Isuzu 1 model(tapclick to expand)(tapclick to hide)
Ascender 2006-2008 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2006 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
LS SUV 2006 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
S SUV 2007 - 2008 L6 4.2L RWD/4WD | Automatic | Fits 4.2L 6-cylinder engine only
Saab 1 model(tapclick to expand)(tapclick to hide)
9-7x 2006-2009 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
4.2i SUV 2006 - 2009 L6 4.2L AWD | Automatic | Fits 4.2L 6-cylinder engine only
2007

⚠️ 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 the Air Injection Pump is Failing

  • Check Engine Light: This is the most common sign. The light might come on and stay on.
  • Loud Noises: You might hear a loud buzzing, whining, or grinding noise coming from the engine area. This is often most noticeable when the engine is first started.
  • Failed Emissions Test: A failing air injection pump can cause your vehicle to fail an emissions test.
  • Rough Idling: Sometimes, a failing pump can cause the engine to idle roughly, especially when cold.

How to Test if This Part is the Problem

  1. Visual Inspection: Check the pump and hoses for any visible damage, cracks, or disconnections.
  2. Listen to the Pump: When the engine is cold and first started, listen for the pump to activate. If you don't hear it, it might be the problem.
  3. Check the Electrical Connector: Make sure the electrical connector to the pump is securely attached and free from corrosion.
  4. Professional Diagnosis: A mechanic can use a scan tool to check for specific error codes related to the air injection system and test the pump's functionality.

Common Failure Causes for This Part

  • Moisture Damage: Water can get into the pump and cause it to rust and fail.
  • Electrical Issues: Problems with the wiring or the pump's motor can cause it to stop working.
  • Physical Damage: Impacts or debris can damage the pump.
  • Age and Wear: Like any mechanical part, the air injection pump can wear out over time.

Buyer's Checklist

What to Look For When Buying This Part

  • Compatibility: Make sure the part is designed for your specific year, make, and model vehicle.
  • Condition: Consider whether you want a used, refurbished, or new aftermarket part.
  • Warranty: Check if the part comes with a warranty. A warranty can protect you if the part fails soon after installation.
  • Seller Reputation: Buy from a reputable seller with good reviews.

Quality Indicators for the Available Options

FeatureUsed OEMRefurbished OEMNew Aftermarket
PriceLowestMid-RangeHighest
Original QualityYesYesPotentially lower than OEM
TestingTested and InspectedTested and RestoredNew, but quality varies by brand
WarrantyVaries by sellerOften IncludedOften Included

What's Typically Included With the Part

  • The air injection pump itself.
  • Sometimes, mounting hardware (check with the seller).
  • Gaskets or seals may or may not be included.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Intermediate
  • Estimated Time: 1-3 hours

Special Tools Needed (if any)

  • Socket set
  • Wrench set
  • Screwdrivers
  • Pliers
  • Possibly a scan tool to clear codes after installation

Critical Steps and Tips

  1. Disconnect the Battery: Always disconnect the negative battery cable before working on electrical components.
  2. Locate the Pump: Find the air injection pump in your vehicle. It's usually near the engine.
  3. Disconnect Electrical Connector: Carefully disconnect the electrical connector from the pump.
  4. Remove Hoses: Disconnect the hoses attached to the pump.
  5. Remove Mounting Bolts: Remove the bolts that hold the pump in place.
  6. Install New Pump: Install the new pump in the reverse order of removal.
  7. Reconnect Battery: Reconnect the negative battery cable.
  8. Clear Codes: Use a scan tool to clear any error codes related to the air injection system.

Whether DIY is Recommended or Professional Installation is Better

  • DIY is possible for mechanically inclined individuals. However, professional installation is recommended if you are not comfortable working on your car or if you lack the necessary tools.

Buying Options

Compare: Used OEM, Refurbished OEM, New Aftermarket

OptionProsCons
Used OEMLowest price, genuine factory part, typically tested and inspected.May have higher mileage/wear, shorter lifespan compared to new.
Refurbished OEMFactory part, professionally restored, often includes new components, good balance of price and reliability.Can be more expensive than used OEM.
New AftermarketBrand new, potentially longer lifespan, warranty often included.Quality can vary significantly between brands, may not meet original equipment (OE) specifications.

Used OEM: Best Value

  • Used OEM air injection pumps offer the best value. You get a genuine factory part that has been tested and inspected, all at a significantly lower price than new.

Refurbished OEM: Factory Parts Professionally Restored

  • Refurbished OEM air injection pumps are factory parts that have been professionally restored with new components. This option offers a good balance of price and reliability.

New Aftermarket: Brand New Third-Party Parts

  • New aftermarket air injection pumps are brand new parts built by third-party manufacturers to meet OE specifications. Quality can vary, so research brands carefully.

Typical Lifespan

How Long This Part Normally Lasts

  • The air injection pump typically lasts between 5 and 10 years, or 75,000 to 150,000 miles.

Factors That Affect Longevity

  • Driving conditions: Frequent short trips can shorten the lifespan of the pump.
  • Climate: Extreme temperatures and humidity can affect the pump's performance.
  • Maintenance: Regular maintenance, such as replacing air filters, can help extend the pump's lifespan.

Price Ranges

Budget vs Mid-Range vs Premium Options

  • Used OEM: $50 - $150
  • Refurbished OEM: $100 - $250
  • New Aftermarket: $150 - $350

Labor Cost Considerations if Applicable

  • Labor costs to install an air injection pump typically range from $150 to $300, depending on the shop and the complexity of the job.

Total Job Cost Estimates

  • Total job cost (parts and labor) can range from $200 to $650, depending on the parts you choose and the labor rate.

Vehicle-Specific Notes

Known Issues for This Vehicle's System Related to This Part

  • Some vehicles in this range are known to experience issues with moisture entering the air injection pump, leading to premature failure.
  • Check valves are also prone to failure.

Any TSBs or Common Complaints

  • There may be Technical Service Bulletins (TSBs) related to the air injection system on these vehicles. Check with your mechanic or search online for TSBs related to your specific year and model.

Verification After Install

How to Confirm Proper Operation

  • Start the engine and listen for the air injection pump to activate. You should hear a buzzing or humming sound for a short period of time.
  • Use a scan tool to check for any error codes related to the air injection system.

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

  • The Check Engine Light should be off.
  • The engine should idle smoothly.
  • You should not hear any unusual noises coming from the air injection pump.

FAQ

Q: What does an air injection pump do?
A: The air injection pump helps reduce emissions by pumping air into the exhaust system. This helps burn off any unburned fuel.

Q: How do I know if my air injection pump is bad?
A: Common signs include a Check Engine Light, loud noises from the engine area, and failing an emissions test.

Q: Can I drive my car with a bad air injection pump?
A: Yes, you can usually drive your car with a bad air injection pump, but it may affect your car's performance and emissions. You also may not pass an emissions test.

Q: Is it hard to replace an air injection pump myself?
A: Replacing an air injection pump is an intermediate-level job. If you're comfortable working on cars and have the right tools, you can do it yourself. Otherwise, it's best to have a professional do it.

Q: What happens if I don't replace a bad air injection pump?
A: If you don't replace a bad air injection pump, your car may fail an emissions test. It can also affect your car's performance and fuel economy.

Part Specifications

OEM Part Numbers:

  • GM: 10373306, 12594698, 12610063, 15928252, 20980043
  • Isuzu: 8103733060

Fits Years: 2006 2007 2008 2009

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