What years are Gen 4 4Runner?

The Gen 4 Toyota 4Runner corresponds to model years 2003 through 2009 in most markets. It was replaced by the fifth generation for the 2010 model year, marking the transition to a new platform.

Overview of Gen 4 (2003–2009)

The Gen 4 4Runner represented a styling and capability evolution from the third generation, while retaining the rugged, body-on-frame identity that defines the model. Across its seven-year span, Toyota refined interior features, safety options, and trim levels to keep pace with mid‑2000s SUV expectations, before giving way to the next generation in 2010.

Year-by-year scope and milestones

The following list enumerates the model years included in Gen 4. These are the years most buyers recognize when shopping for a Gen 4 4Runner.

• 2003


• 2004


• 2005


• 2006


• 2007


• 2008


• 2009

These years define the Gen 4 production window before Toyota introduced the fifth generation for the 2010 model year.

Key updates and evolution

Major milestones that shaped Gen 4 and its mid-cycle evolution:

1. 2003: Gen 4 debuts with a refreshed exterior and interior, advancing the design language of the era while maintaining traditional SUV capability.


2. 2006: Mid-cycle refresh brings exterior tweaks, interior refinements, and feature improvements to keep the model competitive through the late 2000s.


3. 2009: End of the Gen 4 era as Toyota prepares the transition to Gen 5 for the 2010 model year, introducing a new platform and updated styling cues.

Note that availability of features and trims varied by market and configuration, but the core Gen 4 design remained consistent across the 2003–2009 model years.

How to identify a Gen 4 4Runner

Identification hinges on the era’s styling cues, interior layout, and the model year badge. In most markets, 2003–2009 4Runners share the Gen 4 designation, while the 2010 model year marks the introduction of Gen 5 with a distinct design and updated platform.

Summary

In brief, Gen 4 4Runner spans model years 2003 through 2009, bridging the early 2000s SUV framework with the transition to Toyota’s next-generation design that began with the 2010 model year. For buyers and enthusiasts, this means focusing on 2003–2009 examples to access the Gen 4 blend of rugged capability and mid-2000s features.

What year is a 5th gen 4Runner?

The 5th generation Toyota 4Runner includes the model years 2010 through 2024. This generation was introduced in 2010 and is defined by a consistent 4.0-liter V6 engine and a durable platform. The first facelift occurred for the 2014 model year, which introduced updated exterior styling.
 

• 2010–2013: The initial years of the 5th generation, featuring the pre-facelift body style and Trail trim. 
• 2014–2023: The model years following the first major update, which gave the 4Runner its more modern look with updated headlights. 
• 2020–2024: The latest model years within the 5th generation include updated infotainment systems with features like Apple CarPlay and Android Auto. 

What year 4Runner is best?

The best 4Runner years are often considered to be the 2015-2024 fifth-generation models for their balance of modern features and reliability, with the 2017 and 2020-2021 models standing out for their high ratings and reliability enhancements. Other top contenders include the 2001-2002 and 2009 models from earlier generations, particularly for their known reliability.
 
5th Generation (2010-Present) 

• Best years: 2015-2024 
• Top picks: 2017, 2020, and 2021 
• Why they're great: These models offer the best blend of modern features, such as a rear backup camera and updated technology, with the 4Runner's signature reliability. The 2017 model received a high rating from J.D. Power, and the 2020 and 2021 models are noted for being the most reliable and fuel-efficient in the generation. 

This video provides a buyer's guide for the fifth-generation 4Runner, discussing reliability and common issues: 59sDiscerning CarsYouTube · Dec 28, 2023
3rd Generation (1996-2002) 

• Best years: 2001 and 2002 
• Why they're great: The 2001 model is highly rated for its reliability, and any model after 2001 benefited from updates that fixed earlier issues in this generation. The 3.4L V6 engine in this generation is particularly known for its durability. 

4th Generation (2003-2009) 

• Best year: 2009 
• Why they're great: This model year is recognized as a reliable option from the fourth generation, although some models from this era (2003-2009) are noted for potential undercarriage rust issues, so a thorough inspection is important. 

Things to consider

• Fifth Generation (2010-2024): Early models (2010-2013) can be a more budget-friendly option but may lack the tech updates of later models. 
• Rust: Models from 2003-2009 may have undercarriage rust issues and require inspection. 
• Maintenance: Regardless of the year, regular maintenance is crucial for ensuring long-term reliability, with most 4Runners exceeding 200,000 miles with proper care. 

What years are the 4Runner Gen 4?

2003 – 2009
If any Toyota 4Runner seems to fly under the radar, it is the 2003 – 2009 fourth-generation model. These SUVs were not loved when new, but they are a great value on the used market — especially compared to their predecessors.

What year 4Runner to stay away from?

The Toyota 4Runner years to avoid are generally 2003-2005 due to severe frame rust and engine issues, and earlier models like 1988-1995 (specifically with the 3.0L V6) due to head gasket failures. Other problematic years include 2001-2002 for rust and 2010-2011 for airbag defects. 
This video discusses the best and worst years for the Toyota 4Runner, including common problems to watch out for: 59scar PROblemsYouTube · Oct 29, 2024
Problematic model years by generation 

• First Generation (1984-1989): Avoid 1988-1989 models with the 3.0L V6 engine due to potential head gasket failures. 
• Second Generation (1990-1995): Avoid 1990-1995 models with the 3.0L V6 engine for the same head gasket issues. 
• Third Generation (1996-2002): Avoid 2001-2002 models due to reports of severe frame rust and suspension problems. 
• Fourth Generation (2003-2009): This is the most problematic generation. 
  • 2003-2005: These years are notorious for severe frame rust, and some 2003-2004 models are also associated with head gasket failure and dashboard cracks. The 2004 model is often cited as one of the worst due to a combination of rust, ABS problems, and poor rear impact safety ratings. 
• Fifth Generation (2010-present): Avoid 2010-2011 models due to dangerous airbag defects. 

Key issues to be aware of

• Frame and body rust: A significant problem, particularly for the 2003-2005 models, can lead to expensive repairs or a complete vehicle write-off. 
• Engine issues: The 3.0L V6 engine in the second-generation 4Runner is prone to head gasket failure. 
• Airbag defects: A recall affected the 2010-2011 models due to faulty airbags. 
• Dashboard cracks: This was an ongoing issue in some models, including the 2004. 
• Suspension and brake problems: The 2001-2002 models had suspension issues, while the 2004 had a high number of complaints about the ABS not working properly.