Anyone who’s managed a fleet of heavy-duty trucks knows the feeling—that sinking sensation when you get the call that another rig is down with emission system problems. It’s not just the immediate repair costs that hurt; it’s the lost revenue, the scrambling to cover routes, and the headaches that come with keeping everything EPA compliant.
Continue reading Dinex Exhaust & Emission: OEM Alternative Solutions for Repair Shops
On a Caterpillar C15 or 3406E, the turbocharger isn’t just about power – it’s about air control, combustion efficiency, and engine balance.
When the turbo is working correctly, you get:
When it starts to fail, everything changes – and it usually shows up under load first.
Continue reading Caterpillar C15, 3406E Turbocharger (177148): Boost, Failure, and What Happens When It Goes Bad
If your Caterpillar C15 ACERT is running rough, smoking more than usual, or losing power under load, there’s a good chance the issue is in the fuel system.
More specifically – the fuel injectors.
And when an injector like the 10R1273 starts to fail, it doesn’t just affect performance. It can impact combustion, fuel economy, and long-term engine health.
Continue reading Caterpillar C15 ACERT Fuel Injector (10R1273): Symptoms, Failure Causes, and Replacement Guide
The Caterpillar 3406E is known for durability – but when it starts to go, it usually doesn’t fail all at once.
It starts small.
A little blow-by.
A little oil consumption.
Maybe a slight drop in power under load.
Then it builds.
And before long, you’re not looking at a repair anymore – you’re looking at a full engine rebuild.
Continue reading Caterpillar 3406E Engine Rebuild Kit: What Actually Fails and What You Need to Fix It Right
Cylinder heads are one of the most critical components in a diesel engine. They seal combustion pressure, manage airflow, house the valves and injectors, and help transfer heat away from the combustion chamber.
Because cylinder heads operate under extreme pressure and temperature, they are also one of the most failure-prone areas in a diesel engine.
Many major engine failures eventually trace back to cylinder head problems caused by:
Some cylinder head failures develop slowly over hundreds of thousands of miles. Others can happen suddenly and cause catastrophic engine damage in minutes.
A failed cylinder head can lead to:
That is why accurate diagnosis matters so much.
Continue reading Most Common Cylinder Head Problems in Diesel Engines
When a turbocharger fails, the damage is often concentrated in one place:
The center housing rotating assembly (CHRA).
This is the core of the turbocharger – and in many cases, replacing it is the most efficient way to restore performance.
Continue reading Turbocharger Cartridges (CHRA): How Jrone Turbo Cores Restore Performance Without Replacing the Full Turbo
Detroit Diesel Series 60 engines are known for durability – but when they reach high mileage, failure doesn’t happen all at once.
It happens in stages.
Most rebuild decisions start with symptoms like oil consumption, blow-by, or low oil pressure—but the real question is:
What’s actually worn out inside the engine – and what needs to be replaced to fix it correctly?
This guide breaks down the technical failure points and measurements that determine whether your Series 60 rebuild lasts – or comes back.
Continue reading Detroit Diesel Series 60 Inframe Rebuild Kit: Liner Height, Bearing Wear, and What Actually Fails
The Caterpillar 3406E is known for durability.
But like any diesel engine, it eventually needs a rebuild.
An inframe rebuild is one of the most common ways to restore performance without removing the engine from the chassis.
The success of that rebuild depends on more than just replacing parts.
It depends on how those parts work together under load.
Continue reading Caterpillar 3406E Inframe Rebuild Kit: What Actually Matters During a Rebuild
If your Caterpillar 3406E is losing power, popping through the intake, or backfiring through the exhaust, the problem may not be fuel-related at all. In many cases, those symptoms point back to camshaft or valve train wear. When those components start to fail, performance can drop quickly, and if the issue is ignored, it can lead to more extensive engine damage and a much more expensive repair.
This article breaks down what the camshaft does, common signs of failure, why proper installation matters, and what to keep in mind when replacing a 3406E camshaft. If you are already looking for replacement parts, you can start by reviewing our Caterpillar 3406E Camshaft here.
Continue reading Caterpillar 3406E Camshaft: Symptoms, Failure Causes, and Replacement Guide
If your Caterpillar C12 is losing power, running rough, or showing signs of valve train issues, the camshaft may be part of the problem. A worn camshaft can affect valve timing, engine efficiency, fuel economy, and overall performance. Left too long, what starts as a drivability issue can turn into a much larger repair.
Because the camshaft plays such a major role in how the engine breathes and performs, wear in this area should never be ignored. If you are already narrowing down the repair, our Caterpillar C12 Camshaft is a good place to start, and you can also browse more Caterpillar Engine Parts if the repair involves other related components.
Continue reading Caterpillar C12 Camshaft Problems, Symptoms, and Replacement
If your Cummins ISX is starting to lose power, burn oil, or show signs of internal wear, you’re not alone. These engines are built to work – but over time, even the best engines need a rebuild.
The real question is: Are you getting the right rebuild kit the first time?
Because one wrong part… one missed component… or one bad fitment can turn a rebuild into a repeat failure.
Before you even think about parts, you need to know if your engine is truly at that point.
Here are some of the most common warning signs:
If you’re seeing more than one of these, it’s usually not a quick fix – it’s time to start planning for a full rebuild.
A complete engine rebuild kit is designed to give you everything needed to restore performance, reliability, and efficiency.
At a high level, most kits include:
Some kits may also include upgraded or performance components depending on your application.
The key isn’t just having parts – it’s having the right parts matched correctly to your engine.
Not all ISX engines are built the same. There are differences in:
… which can all impact what parts actually fit your engine.
That’s why at Highway and Heavy Parts, we focus on verified fitment before anything ships.
Instead of guessing, our team checks your ESN to make sure every part in your kit is correct the first time.
A rebuild isn’t cheap. But doing it twice? That’s where things really get expensive.
Here’s what we see happen all the time:
That’s why choosing the right supplier matters just as much as choosing the right parts.
When you’re rebuilding an engine, you don’t just need parts – you need confidence that the job is being done right.
At Highway and Heavy Parts, every rebuild kit is backed by:
These kits are built with all-new components – no remanufactured parts, no cores required – and are manufactured to strict quality standards for long-term durability.
If you’re unsure whether your engine needs a rebuild or which kit is right, their team will help you figure it out before you buy.
If your ISX is showing signs of wear, waiting only leads to more damage—and more expensive repairs down the road.
An inframe rebuild done at the right time restores performance, improves efficiency, and extends the life of your engine without the cost of a full replacement.
Call 844-304-7688 to speak with a diesel parts specialist
or visit highwayandheavyparts.com to find the right rebuild kit for your engine.
From diagnosis to delivery, Highway and Heavy Parts has your back.
