If your Skytrack 8042 telehandler is struggling to start, losing power, or stalling under load, there’s a good chance the issue lies with the 8042 Skytrack fuel pump. Whether you’re a fleet mechanic or site operator, this guide will help you understand how the fuel pump works, how to spot issues, and how to fix them—without wasting time or money.
What Is the 8042 Skytrack Fuel Pump and Why Is It So Important?
The 8042 Skytrack fuel pump is the heart of the machine’s fuel system. It pulls diesel from the tank and sends it to the engine at the correct pressure. Without a properly functioning pump, fuel can’t reach the engine, and your Skytrack simply won’t start—or worse, will stop working mid-job.
There are two key types of fuel pumps found in the Skytrack 8042:
- Transfer Pump – Moves fuel from the tank to the engine.
- Injection Pump – Pressurizes fuel and delivers it into the combustion chamber.
Both are critical to the operation of your telehandler.
Signs Your 8042 Skytrack Fuel Pump Might Be Failing
Here are some of the most common symptoms of a failing 8042 Skytrack fuel pump:
- Engine cranks but won’t start
- Stalling during operation
- Loss of power, especially under load
- Poor throttle response
- Fuel leakage or whining noise near the pump
If you’re experiencing any of these, it’s important to act fast—fuel system issues can damage other components if left untreated.
Diagnosing the Problem: Is It Really the Fuel Pump?
Before you buy a new 8042 Skytrack fuel pump, take a few minutes to rule out related issues:
- Dirty or clogged fuel filter
- Air in the fuel system
- Faulty fuel lines or electrical wiring
Perform a fuel pressure test if possible. If pressure is too low, it’s likely a problem with the transfer pump or injection pump. In some cases, performing a proper fuel system bleeding procedure after replacing filters or pumps can resolve the issue.
Choosing the Right Replacement: OEM or Rebuild?
When it’s time to replace your 8042 Skytrack fuel pump, you have a few options:
✅ OEM Transfer Pump
The OEM part, often labeled as “Skytrack 8042 transfer pump OEM part,” is built specifically for your machine. It ensures proper fitment, factory reliability, and minimal troubleshooting.
Advantages:
- Plug-and-play install
- Proven performance
- Backed by warranty
Disadvantages:
- Slightly higher price
- Limited availability in some areas
🔧 Rebuilt Injection Pump
If your injection pump has failed and you’re trying to control costs, a Skytrack 8042 injection pump rebuild is a smart option. These are remanufactured pumps using new internal components, tested to meet OEM standards.
Pros:
- Lower cost than brand-new OEM
- Available with or without core exchange
- Can last just as long when rebuilt correctly
Cons:
- Requires some mechanical knowledge
- May require tuning after install
Cost of a Skytrack 8042 Fuel Pump
The 8042 Skytrack fuel pump cost depends on the part type and where you buy it:
| Part Type | Price Range (USD) |
|---|---|
| OEM Transfer Pump | $80 – $120 |
| Rebuilt Injection Pump | $1,400 – $2,200 |
| New Injection Pump (OEM) | $2,500 – $3,200 |
Keep in mind that shipping, taxes, and possible core charges may apply. It’s always worth checking your machine’s serial number to ensure compatibility.
How to Replace the 8042 Skytrack Fuel Pump (Step-by-Step)
Replacing the 8042 Skytrack fuel pump isn’t overly complicated, but it does require attention to detail. Below is a simplified guide for replacing the transfer pump—the more common component to fail:
🧰 Tools You’ll Need:
- Basic socket set and screwdrivers
- Fuel line clamps
- Drain pan
- Replacement pump
- Safety gloves and goggles
🔧 Steps:
- Turn off the machine and disconnect the battery.
- Locate the fuel pump near the engine bay.
- Clamp off the fuel lines to prevent spills.
- Disconnect the fuel lines and electrical connectors from the old pump.
- Remove mounting bolts and extract the pump.
- Install the new 8042 Skytrack fuel pump, ensuring all seals and lines are tight.
- Reconnect battery, turn key to “run” position to prime the pump.
- Perform a fuel system bleeding procedure to remove air (see next section).
Fuel System Bleeding Procedure for Skytrack 8042
Once you install a new fuel pump or change filters, you must remove air from the system. Here’s how to bleed the fuel system properly:
- Locate the primer pump or hand bulb (if equipped).
- Pump until you feel resistance.
- Crack the bleeder screw on the injection pump slightly.
- Continue pumping until diesel fuel (without bubbles) comes out.
- Tighten the bleeder screw and try starting the engine.
- Let it idle for 5–10 minutes to push any remaining air through.
Skipping this step is one of the most common reasons a machine won’t start after replacing the 8042 Skytrack fuel pump.
Where to Buy the 8042 Skytrack Fuel Pump
Looking for a trustworthy source for the right fuel pump?
- JLG Parts Dealers – Direct OEM replacements
- Aftermarket Sellers – Like Diesel Pro, ConEquip, or BK Diesel
- Online Marketplaces – eBay, Machinery Trader (for rebuilt pumps)
Always check the part number and match it to your machine’s serial number range.
Final Thoughts: Keep Your Skytrack Running Strong
The 8042 Skytrack fuel pump is one of the most critical parts of your machine’s operation. If it fails, your entire jobsite suffers. By recognizing the warning signs early, diagnosing correctly, and choosing the right replacement, you can avoid long downtime and costly repairs.
Here’s a quick recap:
- Know the signs of fuel pump failure
- Use OEM or quality rebuilt components
- Follow the correct bleeding procedure
- Match the part to your serial number
Ready to Get Back on Track?
If you’re still unsure which fuel pump your 8042 Skytrack needs, don’t guess. Contact your parts supplier with your serial number or reach out to a trusted mechanic. The sooner you act, the sooner your machine gets back to work—stronger and more reliable than ever.
