Is the 4.0 engine the best engine Jeep makes: Things to Know
Jeep has been using the 4.0L engine for the last 20 years. Jeep Wrangler, Jeep Cherokee, Grand Cherokee, and other Jeeps have used this engine for a long time. Reliability & upgrade of the 4.0L engine is the main reason for that.
So, Is the 4.0 engine the best engine Jeep makes? It is. The 4.0L engine is powerful & reliable since the manufacturer upgraded it several times. Both the Horsepower & Torque are increased to make it a perfect Jeep engine in every way possible. Still, this engine has some issues that you must consider.
Therefore, I’ll go through the entire 4.0L engine and see if it’s the best Jeep engine. Before that, you should watch this video and have some ideas about the 4.0L engine.
Key Specs of 4.0L Engine
The Jeep 4.0 engine reliability depends on its key specs. Only the specs & the performance can explain if this engine is worthy for Jeep. Let’s get through the specification.
- Straight Inline-6/Straight-6
- 3965 CC
- Block & Head Materials is Cast Iron
- Power is Between 173 to 190 HP
- Torque is Between 220-235 Ib
Here, the HorsePower starts at 173 and is upgraded to 190 in three stages. The same goes for the Torque power, which starts at 220 and goes up to 235 lb. In 1986, the 4.0L engine was only about 173 HP & 220 lb. Then it goes through three stages and is increased accordingly. So, is the 4.0L Jeep Engine Good? Yes, it is good for the above specifications.
What does the liter mean in a 4.0 liter v6 engine jeep? Go through that write-up to know in detail.
Why Is the 4.0L Engine Best for Jeep?
The Jeep 4.0L engine is best for 4 different reasons. Reliable & Stable performance, Durability & lasting time, simple design, and easy to maintain. Let’s see how they make this engine best for Jeep.
Reliable & Stable Performance
From 1972 to 1980, the 4.0L engine was the best for most off-road vehicles. This engine’s performance gets the attention of most manufacturers & people give their positive feedback on this engine.
This engine gives reliable and stable performance for 10 to 15 years. You can think about something other than stable performance. It has good torque power & horsepower to ensure reliable performance for a long time. Therefore, you’ll enjoy the stable performance as long as the engine is in good condition.
Durability & Lasting Time
Another reason why the 4.0L engine is best for Jeep is because of its durability and lasting time. Typically, this engine lasts for 200k miles. But proper maintenance can increase the lasting time and make it serve you for 300k to 400k miles.
Make sure you change the damaged exhaust and other parts related to the engine to enhance the engine performance. Otherwise, the damaged and faulty exhaust, fuel system, or the cooling system may damage the entire engine within a few months.
Simple Design
Engine design is a great factor in shaping the entire Jeep. In that case, the 4.0L comes with a minimalistic & simple design. Therefore, it can be inserted and installed on most Jeeps without thinking of extra space & requirements. The design makes it easier to take care of and change whatever you need.
Some engines come with complex designs; therefore, maintenance becomes harder. It takes months & years to get used to the engine and take care of it properly. That’s why the simple design is the third most important factor for any off-road Jeep.
Easy to Maintain
As I said, the 4.0L engine is easy to maintain & change the damaged part. Cleaning your engine, changing the exhaust & fuel system, or intake air is possible if you need more knowledge or DIY skills.
All the parts are still available everywhere, including eBay and other marketplaces. You can search for your required parts and install them within an hour.
How Much Does A Jeep 4.0 Engine Cost?
A Jeep 4.0L Engine costs around 2500-3000 bucks without the labor cost. If you want to install the engine with a professional, you must add an extra $1000-$1500. However, the cost of your engine may depend on the engine’s condition, complexity, and type.
You’ve two options to buy the required engines. One is for the new engine, which may cost you around $3000 to $5000. On the other hand, the old or used engine might be available from $1500 to $2500.
To get the current price, you should check out the marketplace and ask if they include the labor cost. Otherwise, the engine cost & labor cost might be equal, and you need to pay for it.
People Also Asked
Is The Jeep 4.0 An Interference Engine?
The Jeep 4.0 is a non-interference engine. It means the valves won’t collide with the piston. But the 2007-2011 model 4.0L engine is an interference engine. So, it depends on the engine model and the current version.
Can I Change My 4.0L Engine?
Yes, you can change your 4.0L engine anytime you love to. After 200k miles, replace the existing engine with a new/used one. In that case, buying a new one would be a perfect choice from every side.
Which Is The Best Engine for Jeep?
Considering the engine performance, power, and maintenance, the 4.0L engine is the best for Jeep. It’ll provide you with the best performance on any terrain. It’s enough torque & HP to kick-start under any condition. That’s why the 4.0L engine is one of the best engines for Jeep.
How Long Does the 4.0 Engine Last?
The 4.0L engine lasts for 200k to 300k miles. It can last about 400k miles, but proper maintenance is necessary. You should change the damaged engine parts, intake air filter & other parts.
Closing Words
Is the 4.0 the best engine Jeep makes? Yes, it is. Performance, ease of maintenance, durability, and simple design are the main reasons why the 4.0L engine is the best Jeep. You can change this engine anytime by spending around $3000 to $5000.
Remember, you must maintain the engine regularly. Otherwise, it’ll only last for a while, and you’ll face different challenges and problems. So, solve them soon and get the best engine performance.
