If your Cummins ISX or QSX is overheating, losing coolant, or showing signs of combustion issues, the problem may be deeper than a gasket or sensor.
It could be your cylinder head.
And when a cylinder head starts to fail, it doesn’t take long before it affects the entire engine.
Continue reading Cummins ISX, QSX Cylinder Head: Symptoms, Failure Causes, and Replacement Guide
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
If you’re hearing noise when engaging the clutch, don’t ignore it.
What might seem like a minor issue – grinding, chatter, or a harsh engagement – can point to mechanical or hydraulic problems that will only get worse over time.
On heavy-duty diesel applications, clutch engagement issues typically fall into three categories:
Understanding the difference is critical – because each one leads to very different failure paths.
Continue reading Diesel Engine Noise During Clutch Engagement: Diagnosing Drag, Slip, and Hydraulic Failure
When it comes to diesel engine parts, one of the most common questions is: why are OEM parts so expensive?
Many assume higher cost means higher quality – but that’s not always the case. In reality, the difference between OEM and aftermarket parts often comes down to manufacturing, distribution, and how the parts reach you.
If you’re comparing options right now, you can shop diesel engine parts to find high-quality components built for your specific engine and application.
Understanding that difference can help you make a more informed – and more cost-effective – decision when it’s time to repair your engine.
Continue reading Aftermarket vs OEM Diesel Parts: What’s the Real Difference?
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
When diagnosing valvetrain issues in a diesel engine, rocker arms are often overlooked.
But on engines like Cummins ISX, Detroit Diesel Series 60, and Caterpillar platforms, rocker arm assemblies – and more specifically the pin and roller components – are critical wear points.
Understanding the difference between replacing a full rocker arm versus servicing pin and roller kits can prevent repeat failures and unnecessary downtime.
Continue reading Diesel Engine Rocker Arms vs Pin and Roller Kits: What Actually Wears Out and Why It Matters
If your Caterpillar C15 or 3406E isn’t running like it used to – losing power, misfiring, or making unusual noise – the problem might not be what you think.
It could be your camshaft.
And if that’s the case, waiting too long can turn a manageable repair into a full engine rebuild.
Continue reading Caterpillar C15, 3406E Camshaft: Symptoms, Failure Causes, and Replacement Guide
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
The Cummins ISL G natural gas engine is built for a different type of combustion.
And that difference is exactly why the cylinder head fails the way it does.
Unlike diesel engines, ISL G failures are not typically caused by pressure.
They are caused by heat, material fatigue, and valve seat wear.
Continue reading Cummins ISL G Cylinder Head Failures: Why Valve Seats Drop and How to Prevent It
You finished the in-frame. New liners, pistons, rings – everything looks right.
But now you’re seeing:
This isn’t uncommon on Cummins ISX engines – and it usually comes down to one issue:
Improper liner protrusion and ring seating during install.
If you don’t get this right, your rebuild won’t last – no matter how good your parts are.
Continue reading Cummins ISX In-Frame Rebuild Failure: Why Your New Liners Aren’t Sealing (And How to Fix It)
