
Honda Engines: 2.4L K24A/K24Z/K24W Engine Hp, Reliability, and Performance
Some engines are renowned for the power they produce and others are praised because of how durable, flexible and robust they are. The K24A/K24Z/K24W family of engines is able to perform both. This K24 family has gained itself a reputation as one of the top Honda four-cylinder engines by powering sporty Civics and Accords and providing high-quality service for CR-Vs and international models. The K24 is an engine that’s worth celebrating if you’re a prospective buyer or an enthusiast or a company that is looking for reliability and performance.
What Is the 2.4L K24 Engine?
The K24 series comprises a set of inline four engines designed as a larger model of the K20. It was introduced in 2001, and became an integral part of Honda’s SUVs, sedans, and sporty trims, until the mid-2010s.
Key Specs:
Manufacturer | Honda Motor Company |
Production years | 2001-present |
Cylinder block material | Aluminum |
Cylinder head material | Aluminum |
Fuel type | Gasoline |
Fuel system | Multi-point fuel injection; |
Direct injection | |
Configuration | Inline |
Number of cylinders | 4 |
4 | |
Valves per cylinder | 4 |
4 | |
Valvetrain layout | DOHC |
DOHC | |
Bore, mm | 87.0 mm (3.43 in) |
87.0 mm (3.43 in) | |
Stroke, mm | 99.0 mm (3.89 in) – K24A(Z); |
99.1 mm (3.90 in) – K24W | |
Displacement, cc | 2,354 cc (143.6 cu in) – K24A(Z); |
2,356 cc (143.8 cu in) – K24W | |
Type of internal combustion engine | Four-stroke, naturally aspirated |
Compression Ratio | 9.6:1; |
9.7:1; | |
10.1:1; | |
10.5:1; | |
10.7:1; | |
11.0:1; | |
11.1:1; | |
11.6:1 | |
Power, hp | 160-206 hp (119-154 kW)/ 5,500-7,000 |
Torque, lb ft | 160-182 lb-ft (217-247 Nm)/ 3,600-4,500 |
Engine weight | 412 lbs (187 kg) |
Firing order | 1-3-2-4 |
Engine oil capacity, liter | 4.2 l (4.4 qt) |
Engine oil weight | SAE 5W-30, 5W-40 (K24A); |
Oil recommendations and capacity may vary depending on the car model, year, and market. Please check the service manual specific to your vehicle! | |
Oil change interval, mile | 9,000 (15,000 km) / 12 months |
Cars with this engine | 9,000 (15,000 km) / 12 months |
In short it’s true that the K24 provided the appropriate amount of power, displacement and reliability to function with a variety of Honda models.
K24A: The Original Power Player
K24A K24A is the very first model of its kind and soon became a huge hit.
- It was found on earlier models that were part of Honda Accord and CR-V.
- Based on the trims and setting It produced between 160 to 220 horsepower.
- High-performance versions, such as the K24A2 in the Acura TSX model, have more internal strength and a higher compression.
Many of the fans believe that it’s the K24A one of the more “tuner-friendly” of the series since it is easily swapped and altered.
K24Z: The Everyday Hero
The K24Z series followed and was utilized in Accords as well as CR-Vs and Elements through the mid 2000s and the beginning of 2010.
- The power output ranged between 170 and 205 horsepower and the torque was low.
- A little more tuned to improve efficiency and daily driving rather than pure power.
- It is known for its reliability in commuter vehicles that can often travel more than 200k miles.
It was the K24A’s flashier older brother however, the K24Z was one you could be sure of.
K24W: The Modern Evolution
K24W K24W was the final model within this family It was then employed in the later Accords from 2013 until 2017.
- Direct injection is added to improve efficiency and reduce on the amount of pollution.
- It produced between 185 and 182 pounds of torque.
- The Accords average 34 miles for every gallon when driving on the interstate. This is an excellent balance of performance and efficiency.
This engine assisted Honda to move toward the present Earth Dreams portfolio. It demonstrated that even larger four-cylinder engines can be beneficial in a world where efficiency is a major consideration.
Performance: Real-World Strength
The K24 engine’s numerous versions offered performance that was great for car lovers as well as families.
- Torque-rich: The K20 is powerful and torque-driven. It’s got more power in the low end than the less powerful K20 which is why it’s a great choice for larger vehicles.
- Smooth delivery: The VTEC engine was very smooth in its operation, in contrast to those with a high-rev “kick” of older engines.
- Sport applications: AKA the K24 has made it possible to make the Civic Si and Acura TSX extremely enjoyable to drive.
It was not as loud as the K20 However, it was more efficient and flexible, much like the marathon runner who could run at any time they wanted to.
Engineering Features That Stand Out
Honda developed its K24 engine for durability for a long time and to be durable.
Main Points:
- DOHC i-VTEC system: Intelligent valve timing ensured that power was always available throughout the range of RPM.
- Forged crankshaft: Strong enough to withstand heavy loads.
- Timing chain (not belt): Long-term maintenance costs.
- Aluminum block with cast iron sleeves: Aluminum block with sleeves made of cast iron The perfect mix of strength and lightness.
- Direct injection (K24W): It is more efficient in the later generations.
It was a long-lasting, flexible engine that was able to adapt and last for a long time.
Reliability: The K24 Legacy
The K24 is a well-known model for its reliability.
Positive points:
- Longevity: If given the proper maintenance the majority of K24 engines can last for more than 300,000 to 250,000 kilometres.
- Simple maintenance: It’s running great with the right amount of care: filters, oil and fluids.
- Wide parts availability: millions of cars and trucks that have K24 engines will ensure the aftermarket support and OEM is accessible.
Known Weak Spots:
- Timing chain tensioners: Timing chain tensioners for chains are among the weak points. They get worn out after lots of miles, and make noise.
- Oil consumption: Certain K24Z models require greater amounts of oil when there are more miles.
- Carbon buildup (K24W): Models that have direct injection might require cleaning.
The K24 remains among the top robust engines in its class but, it is not as reliable as its rivals.
Fuel Economy: Balance Over Bragging Rights
The K24 was not built to give the same gas mileage as hybrids however, it was quite adequate for an engine of 2.4L.
- Accord/CR-V: is 23-27 mpg in the city, and 31-34 mpg on the highway.
- Civic Si/TSX: Its Civic Si and TSX get approximately the equivalent of 21 to 23 miles within the city, and 29-30 miles per gallon when on the highway.
- K24W Accord: up to 34 mpg on interstate, which is excellent for its dimensions
The K24 was a favorite among business and family members due to its excellent combination of powerful power and a good gas mileage.
Buyer’s Perspective: Why Choose the K24?
There are numerous reasons why buyers would prefer a car that has a K24 engine. K24 engine.
- Affordability: Used Hondas equipped with K24s typically aren’t excessively expensive.
- Proven track record: A track record of success with a track record of being reliable over many years.
- Aftermarket potential: The potential of the aftermarket Fans encourage improvements in performance.
- Resale value: Hondas that come with K24s are still highly sought-after for sale.
It’s akin to having a tool that you can depend on, which you can use in numerous ways, and is always in use.
Business Perspective: Fleet and Resale Benefits
The K24A/K24Z/K24W engines are ideal for businesses as they make money.
- Durable fleet option: A fleet option that will last Ideal for delivery trucks, taxis and ridesharing.
- Predictable maintenance: Helps keep costs down and downtime to the minimum.
- Strong resale: Hondas maintain their value, therefore selling them is beneficial.
- Fuel savings: Efficiency helps reduce cost over time.
This is the reason that companies all over the globe all over the world, all the way from Asia all the way to North America, used Hondas equipped with K24 engines to power their fleets.
Real-World Example: Accord with K24W
Imagine driving in a year-end 2015 Honda Accord with a K24W engine. It can get 34 mpg on the highway, and can handle the daily commute during the week. It is able to carry bags for families on weekends without issues. It’s still dependable after 200,000 miles. This is the reason why businesses and buyers are able to trust the K24.
Maintenance Tips for Longevity
Take these measures to ensure that your K24 engine is able to last for many years:
- Oil changes: Make adjustments to the oil Good synthetic oil should be changed every 5,000-7,000 miles.
- Valve adjustments: For optimal performance, make adjustments to the valves at least every 100,000 miles.
- Timing chain inspection: after 150,000 miles check for crackling sound when you start the vehicle.
- Carbon cleaning (K24W): Carbon cleansing (K24W) stops the build-up in engines that have direct injection.
- Use quality fluids: Make sure you use the right fluids. OEM-spec coolant and gearbox fluids can make things last longer.
If you care for your Honda engine on a regular basis it will last longer than other engines.
Aftermarket & Tuning Potential
The K24 is renowned for its amount of support from aftermarket vendors.
- ECU tuning: ECU tuning for more power and improved throttle response.
- K24/K20 “Frankenstein” builds: A popular method to generate lots of power is by using K20 heads to build K24 blocks.
- Turbocharging: Certain models with turbocharging could achieve K24s up to 400 horsepower.
- Track builds: K24A2 is a well-known option for endurance racing especially for track build.
The K24 is among the most popular platforms for those who enjoy it.
Why the K24 Still Matters in 2025
It is believed that the K24 engine family remains essential even though there are electric and hybrid vehicles in the present.
- Affordable used cars: Civics, Accords and CR-Vs that have K24s remain the top second-hand cars for sale that are affordable.
- Swap culture: Swap culture is still prevalent in builds for performance.
- Proven reliability: Users that use the software for work or personal reasons have said it is effective.
- Balanced design: Not many engines have the combination of efficiency, torque and endurance.
The K24 illustrates that there is still a need for an internal combustion motor in the modern automobiles.
Key Points
- K24A: K24A is a strong and sporty engine.
- K24Z: A motor that performs well throughout the day.
- K24W: A more modern version that has direct injection.
- Performance: 160 – 220 horsepower, and lots of torque.
- Reliability: It’s been reported to last for more than 250,000-350,000 km.
Conclusion
The 2.4L K24A/K24Z/K24W engine is much more than a regular Honda engine. It’s an example of power, utility and flexibility. It gives buyers peace of mind since it’s long-lasting and doesn’t come at a high cost. It’s a great fleet option for businesses due to its excellent resale value. It’s also an engine that continues to spark fresh ideas. The K24 remains a benchmark engine until 2025, and combines Honda’s engineering expertise with practicality in the real world.
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