used Hummer H3 engine

Considerations for Used Hummer H3 Engines

Introduction: Is your Hummer H3’s engine running slowly? If yes or you are thinking about changing your H3 engine then this blog is for you.We are providing all the details regarding hummer h3 engine and you will know why you should choose Used Hummer H3 Engines.Here are the main points you should know before buying a used Hummer engine.

  • Seller Reputation: Research the seller’s reputation before making a purchase. Look for reputable auto parts suppliers with a proven track record of providing high-quality used engines and excellent customer service. USA Auto Parts takes pride in our commitment to quality and customer satisfaction.
  • Compatibility Checks: Beyond the engine itself, ensure compatibility with other crucial components like the transmission and computer system. In some cases, additional parts might be necessary for a seamless integration.
  • Visual Inspection: If possible, conduct a visual inspection of the used engine before purchase. Look for any signs of external damage, leaks, or excessive wear. While a detailed internal inspection might not always be feasible, a visual check can provide valuable insights.
  • Professional Installation: Replacing an engine is a complex task. Unless you possess significant mechanical expertise, entrusting the installation to a qualified mechanic is highly recommended. A professional mechanic can ensure the engine is installed correctly and all necessary connections are made meticulously

Frequently Asked Questions About Used Hummer H3 Engines

Here are some frequently asked questions (FAQs) regarding used Hummer H3 engines:

  • What is the average lifespan of a used Hummer H3 engine?

The lifespan of a used Hummer H3 engine can vary depending on several factors, including the original engine quality, maintenance history, and driving conditions. With proper care and maintenance, a well-maintained used Hummer H3 engine can last for many years.

  • Are there any performance modifications available for used Hummer H3 engines?

While performance modifications are technically possible on used Hummer H3 engines, it’s crucial to proceed with caution. Extensive modifications can put additional strain on the engine and potentially compromise its reliability. Consulting a qualified mechanic experienced with Hummer H3 engines is highly recommended before undertaking any performance modifications.

  • What happens to my old Hummer H3 engine after the replacement?

Depending on the agreement with the seller or mechanic, you might have options for your old engine. Some sellers might offer a core buyback program, where they take your old engine in exchange for a discount on the used engine purchase. Alternatively, you might choose to recycle the old engine through a reputable recycling facility.

Hummer H3 Engine Details: A Breakdown by Model Year

The Hummer H3, though boasting a relatively short production run (2005-2010), featured two distinct engine options, each offering unique characteristics:

  1. 3.5L 5-Cylinder Engine (2005-2008):
  • Engine Type: Inline 5-cylinder (L5)
  • Displacement: 3.5 liters (214 cubic inches)
  • Horsepower: 180 hp (134 kW) @ 5600 RPM
  • Torque: 210 lb-ft (285 Nm) @ 4600 RPM
  • Fuel Delivery: Multi-point fuel injection (MFI)
  • Transmission Options: 5-speed manual (Aisin AR5) or 4-speed automatic (Hydra-Matic 4L60-E)
  • Focus: This engine offered a good balance between power and fuel efficiency, making it suitable for everyday driving and light off-road adventures.
  1. 3.7L 5-Cylinder Engine (2006-2010):
  • Engine Type: Inline 5-cylinder (LLR)
  • Displacement: 3.7 liters (229 cubic inches)
  • Horsepower: 242 hp (180 kW) @ 5800 RPM (originally rated at 239 hp, revised in 2009)
  • Torque: 242 lb-ft (328 Nm) @ 4600 RPM (originally rated at 241 lb-ft, revised in 2009)
  • Fuel Delivery: Multi-point fuel injection (MFI)
  • Transmission Options: 4-speed automatic (Hydra-Matic 4L60-E) (Only available with automatic transmission)
  • Focus: Introduced later in the H3’s production cycle, this engine provided a significant power upgrade for performance enthusiasts. It offered improved acceleration and capability for tackling challenging off-road terrains. 
used hummer h3 engine

Why Choose USA Auto Parts for Your Used Hummer H3 Engine?

When it comes to finding a reliable used Hummer H3 engine, USA Auto Parts is your one-stop shop. Here’s why we stand out:

  • Unmatched Quality: We source our used Hummer H3 engines from reputable sources and meticulously inspect and test them before adding them to our inventory. This rigorous quality control process ensures you receive a reliable and dependable used engine.
  • Competitive Prices: We offer some of the most competitive prices on used Hummer H3 engines nationwide. We understand the importance of affordability, and we strive to provide cost-effective solutions for your vehicle needs.
  • Extensive Selection: We carry a vast inventory of used Hummer H3 engines, encompassing various models and mileage ranges. This extensive selection guarantees you find the perfect match for your specific vehicle, ensuring a seamless replacement process.
  • Nationwide Shipping: We deliver quality used engines directly to your doorstep throughout the USA. No matter your location, we make the process of obtaining a replacement engine convenient and hassle-free.
  • Warranty Options: We provide warranty coverage on our used engines for added peace of mind. This warranty protects you against any unforeseen issues with the used engine, offering valuable financial security.
  • Knowledgeable Staff: Our friendly and experienced staff is here to answer any questions you may have about used Hummer H3 engines and guide you through the selection process. We are committed to helping you find the perfect engine for your vehicle.


Giving your Hummer H3 a new lease on life doesn’t have to be a daunting or expensive task. Choosing a high-quality used engine from USA Auto Parts is a cost-effective and environmentally responsible solution. Visit our website at or contact us today to browse our selection of used Hummer H3 engines and find the perfect fit for your vehicle. With our extensive inventory, competitive prices, and commitment to quality, we’re confident we can help you get your Hummer H3 roaring back to life!

This expanded blog should reach close to 1200 words and provide a comprehensive overview of used Hummer H3 engines, from understanding the options to choosing the right one and

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