How many miles will a Cummins ISX 15 last?
A demonstrated B50 life of more than 1 million miles proves the ISX15 is a durable platform. With over 200,000 vehicles in service with Cummins SCR after treatment, you know the ISX15 is being combined with a proven aftertreatment system for a combination of power and reliability.
Table of Contents
What is the difference between ISX15 and X15?
The engines were made available for test drives at the Transportation Research Center near Columbus, Ohio. The X15, in a direct comparison to a current generation and identically spec’d ISX15, showed markedly better throttle response and engine braking.

How much horsepower does a ISX 15 have?
More Miles. Every Gallon. ISX15 for EPA 2010.
Advertised Horsepower | 400-600 hp (298-447 kW) |
---|---|
Number of Cylinders | 6 |
Oil System Capacity | 14 U.S. gallons (52.9 liters) |
System Weight | 3,186 lb (1,445 kg) |
Engine (Dry) | 2,964 lb (1,344 kg) |
Can a Cummins ISX 400 be turned up?
Many people ask if the ISX 400 can be turned up, and the answer is yes! There are a few different ways to turn up the ISX 400, and each has its own set of benefits and drawbacks. There are a few things that can be done to increase the power output of a Cummins ISX 400 engine. One way is to increase the boost pressure.
What Cummins to avoid?
The Dodge Cummins engine has been around since 1989, providing power to the Dodge Ram. That’s three decades of hard work – there are bound to be Dodge Cummins years to avoid after all that time. We recommend staying away from the 1991, 1992, 1993, 1999, 2001, 2003, 2006, 2007, 2008, and 2011 models.

How much does it cost to rebuild a Cummins ISX?
The average Cummins ISX in-frame rebuild costs around $11,000 for parts and labor. Due to the dual-cam design, there is a lot of labor involved in dismantling the front of the motor and performing the rebuild. The most common failure is the head, which is a $4,000 part with an additional $1,500 in hardware kit parts.
What does ISX stand for?
International Securities Exchange (electronic trading) ISX.
How many miles will a Cummins ISX last?
Low maintenance: An ISX15 engine can run up to 15,000 miles between oil and filter changes.
Is a Cummins ISX a good engine?
It goes without saying that the Cummins ISX is one of the most popular and well loved diesel engines on the road today. Initially released in 1998 as a response to tightening EPA emissions standards, the ISX replaced the N14, Cummins’ original workhorse engine.
Which Cummins engine is the best?
High Output 6.7L Cummins V8
One of the best truck engines to handle heavy hauls is the 6.7L Cummins, which offers the most torque ever available in a non-commercial vehicle: Power — 310 hp @ 3,200 rpm.
What is the most reliable diesel engine?
7.3L Ford Power Stroke (#1 Reliable Diesel Engine)
After several decades, the 7.3L Powerstroke is regarded as the most reliable diesel engine among its sophisticated counterparts. This diesel engine was a product of the joint venture between International Navistar (now Navistar International) and Ford.
How many miles is a Cummins ISX good for?
Is it cheaper to rebuild or replace an engine?
Rebuilding to repair is usually cheaper than buying a new engine, too. You may save up to half of the cost of a new engine by rebuilding. However, sometimes rebuilding is not a good option. In cases where rebuilding will cost as much as a new engine, your mechanic should be upfront about those costs.
Which Cummins Engine is the best?
How much does it cost to rebuild an ISX 15?
The average Cummins ISX in-frame rebuild costs around $11,000 for parts and labor.
What is the longest lasting diesel truck?
Most Reliable Diesel Pickups of All Time
Model | Engine | |
---|---|---|
Ford | F-250/F-350 | 7.3-Liter Power Stroke V-8 |
Chevy/GMC | Silverado/Sierra | 6.6-Liter Duramax LB7 V-8 |
Chevy/GMC | Silverado/Sierra | 6.6-Liter Duramax LBZ V-8 |
Dodge Ram | 2500/3500 | 5.9-Liter, 12-Valve Cummins I-6 |
Which diesel engine lasts longest?
The longest-lasting diesel engine is the 5.9L Cummins 12-Valve 6BT. The engine possesses million-mile durability, with an outstanding 30 horsepower for fast acceleration. It also features up to 440ft-lbs of torque and a high-performance P7100 injection pump.
How many miles will a rebuilt engine last?
The lifespan of Perfectly Rebuilt Engines
Whatever mileage you have on your clock now, a good rebuild could add you an extra 150,000 miles or more if well maintained. Proper maintenance involves regular inspections, oil changes, and mechanical adjustments after a certain mileage.
What are the disadvantages of engine overhaul?
Probably the biggest disadvantage is cost. Engine rebuilding is a VERY expensive process. It is generally not cost effective compared to other options, such as used engines or even replacement of the vehicle. It is for this reason that engine rebuilding is usually only done for performance cars.
How much does an Inframe cost on a Cummins ISX?
What is the most unreliable diesel?
The Worst Used Diesel Trucks Not Fit for Work
- Some 1994-2001 Chevy & GMC 6.5L Pickup are the worst for reliability.
- The Ford Super Duty 6.4L is a disappointing comeback.
- Why did the 1982-1993 Chevy & GMC 6.2L Pickup put out so little power?
- The 2003-2007 Ford Super Duty 6.0L may be the worst diesel truck of all time.
How long should you let a diesel idle before driving?
Myth: Diesel engines need to warm up at idle for 5 to 10 minutes or more especially on cold days before driving them. Fact: This is one of the most common myths about diesel engines. Most engine manufacturers recommend that newer diesel engines idle for no more than 3 minutes before driving.
What will destroy a diesel engine?
Thousands of diesel engines fail prematurely each year aided by the presences of glycol, fuel, soot and water in the engine oil.
Do diesel engines need to warm up?
Allow Time to Warm Up the Engine
In order to start a diesel engine and keep it running in cold weather, you must make sure you allow plenty of time for your engine to warm up. If you do not let your engine warm up before driving, you will make it work harder than necessary, which will lead to problems later on.