The Dodge Avenger had a strong run as one of America's most recognizable midsize sedans. Produced from 2008 through 2014, the Avenger offered bold styling, spacious interiors, and a range of engine options that made it accessible to a wide variety of buyers. Today, millions of Avengers remain on the road and when their engines begin to fail, owners face an important decision about how to keep them running. If you're searching for a Dodge Avenger engine replacement, you've come to the right place. This guide covers everything from the engines available in each model year, to the most common failure points, to what you should expect to pay for a quality used replacement and how to make sure you're buying from a supplier you can trust.

A Quick Look at Dodge Avenger Engine Options (2008–2014)

The second-generation Dodge Avenger (the generation most people think of today) was offered with three primary engine options throughout its production run:

2.4L World Gas Engine (2.4L DOHC Four-Cylinder) This was the base engine for most model years, designated the ED3/EDR in Chrysler's system. It produces approximately 173 horsepower and 166 lb-ft of torque. Paired with either a 4-speed or 6-speed automatic transmission depending on year, it delivers adequate performance for daily driving. The 2.4L engine is the most common Avenger engine on the used market due to its prevalence across the lineup.

2.7L V6 (2008–2010) Early Avengers offered the 2.7L V6, a controversial engine in Chrysler's lineup due to its reputation for sludge buildup when maintenance intervals were neglected. This engine makes approximately 189 horsepower and was dropped from the Avenger lineup after 2010. Buyers seeking replacement 2.7L engines should be especially diligent about sourcing from verified, low-mileage donors given the engine's history.

3.6L Pentastar V6 (2011–2014) The introduction of Chrysler's 3.6L Pentastar V6 in 2011 transformed the Avenger's performance character. Producing approximately 283 horsepower and 260 lb-ft of torque, the Pentastar engine gave the Avenger genuine punch. The Pentastar also has a far stronger reliability reputation than the 2.7L it replaced and is one of the most widely used engines in Chrysler's history sharing its architecture with the Jeep Grand Cherokee, Chrysler 300, Ram 1500, and many others.

Common Dodge Avenger Engine Problems 

Understanding why Avenger engines fail helps you recognize when replacement (rather than repair) is the right path, and helps you evaluate the condition of a used replacement engine.

2.4L Four-Cylinder Issues

• Oil consumption: The 2.4L World Gas Engine is known for elevated oil consumption in higher-mileage examples, often related to worn piston rings.
• Balance shaft bearing failure: This is one of the most serious known issues with the 2.4L. The balance shaft bearing can wear prematurely, leading to oil pressure loss and potential catastrophic engine failure. Balance shaft bearing kits have been a common repair item, but engines with unaddressed balance shaft issues may have internal damage.
• Timing chain tensioner wear: Timing chain noise at startup is an early warning sign. If ignored, timing chain failure causes severe engine damage.

2.7L V6 Issues

• Oil sludge accumulation: The 2.7L is notorious for oil sludge when oil changes were delayed beyond 3,500–4,000 miles. Sludge restricts oil passages, starves the engine of lubrication, and can cause bearing and camshaft failures.
• Water pump failure: The 2.7L uses an internal water pump driven by the timing chain. When the water pump fails, coolant enters the oil and engine damage follows rapidly. This is a major reason many 2.7L engines in the used market were pulled from running vehicles following other damage rather than engine failure.

3.6L Pentastar Issues

• Exhaust manifold cracking (early production): 2011 Pentastar engines had a known issue with exhaust manifold cracking, which Chrysler addressed in later production runs. Used Pentastar engines from 2011 should be inspected for exhaust manifold condition.
• Cam follower/rocker arm wear: Some Pentastar engines have shown cam follower wear in higher mileage units. This typically presents as a ticking sound and should be investigated before purchase.
• Head gasket leaks: Less common but documented, particularly on high-mileage examples.

How to Evaluate a Used Dodge Avenger Engine Before Buying

Given the engine-specific issues outlined above, here's a practical checklist for evaluating any used Dodge Avenger engine:

For all Avenger engines:

• Request the donor vehicle VIN and run a history check
• Ask specifically about maintenance history (particularly oil change frequency for the 2.7L)
• Confirm exact engine code matches your Avenger's specification
• Ask whether the engine was running when pulled from the donor vehicle
• Inquire about the supplier's inspection process

For the 2.4L specifically:

• Ask about balance shaft bearing history and whether the engine had any associated oil pressure faults
• Request information on timing chain condition

For the 2.7L specifically:

• Treat this engine purchase with extra caution—ask detailed questions about sludge history
• Only purchase from a supplier that performs internal inspections, not just visual checks

For the 3.6L Pentastar:

• Confirm model year to assess exhaust manifold risk
• Ask about any known cam or rocker arm concerns

Dodge Avenger Engine Replacement Cost

Used Engine Purchase:

• 2.4L four-cylinder: $600–$1,500 depending on mileage and condition
• 2.7L V6: $500–$1,200 (lower demand due to reliability reputation)
• 3.6L Pentastar V6: $1,200–$2,500 for verified, lower-mileage units

Labor Costs: Professional engine replacement on a Dodge Avenger typically runs $800–$1,800 at an independent shop, depending on your location and the specific engine. The Pentastar swap can be slightly more involved due to the engine's size and ancillary connections.

Parts to Replace During Installation: Budget for fresh gaskets, seals, coolant, serpentine belt, and motor mounts. For the 2.4L, a proactive balance shaft bearing kit installation ($150–$250 in parts) is worth serious consideration.

Total Estimated Budget: $2,000–$5,500 depending on engine type and labor market in your area.

Is It Worth Replacing the Engine in a Dodge Avenger?

This is the question every Avenger owner faces, and the answer depends on several factors:

Factors that favor engine replacement:

• The vehicle has a clean body, solid interior, and recently replaced components (tires, brakes, suspension)
• The Avenger has relatively low mileage on the body and frame
• You own it outright and the engine is the only significant issue
• You need reliable transportation and can't quickly replace the vehicle

Factors that might favor selling or trading:

• The vehicle has other significant issues (transmission, rust, suspension) in addition to the engine
• The body and interior have deteriorated significantly
• The total repair cost approaches or exceeds the vehicle's market value

For most Avengers in reasonable overall condition, a used engine replacement makes strong financial sense. A 3.6L Pentastar Avenger with a fresh engine is a capable, reliable daily driver with significant life remaining.

Why Moon Auto Parts for Your Dodge Avenger Engine

At Moon Auto Parts, we stock used Dodge Avenger engines across all three engine families the 2.4L, 2.7L, and 3.6L Pentastar sourced from verified donor vehicles with documented mileage. Every engine in our inventory goes through our inspection process before shipping, and VIN matching ensures you receive an engine that's confirmed compatible with your specific Avenger. Our 4-year / 40,000-mile warranty on eligible engines provides the kind of coverage that gives real peace of mind, not the window that barely covers the time it takes to get the engine installed and driven. We offer financing options for qualified buyers, free shipping to commercial addresses throughout the USA, and a knowledgeable customer support team that understands Chrysler/Dodge powertrains.

Final Thoughts

The Dodge Avenger may have ended production in 2014, but its strong following of loyal owners keeps the used parts market active and well-supplied. Whether you're replacing a tired 2.4L, walking away from a sludged 2.7L, or breathing new life into your Avenger with a fresh Pentastar V6, a quality used engine from Moon Auto Parts is the straightforward path forward. Get in touch with our team today to find the right Dodge Avenger engine for your vehicle. We'll match your VIN, confirm compatibility, and get your order processed quickly.

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