Bobcat Fuel Pump Replacement: A Complete Guide to Diagnosing and Fixing Your Machine

If your Bobcat is struggling to start, hesitating during acceleration, or stalling unexpectedly, the fuel pump is likely the problem. Replacing a faulty fuel pump restores proper fuel pressure to the engine and is a straightforward repair that you can do yourself with basic tools, saving hundreds of dollars in labor costs. Before you start, identify your Bobcat model and serial number to get the correct pump, then follow the step-by-step replacement process outlined in this guide.

Why Your Bobcat Needs a Fuel Pump Replacement

The fuel pump in your Bobcat generates positive electrical pressure in the fuel lines, which drives fuel to the engine for combustion . When the pump starts to fail, you will notice several symptoms:

  • Engine hesitation or poor acceleration: The engine struggles to get enough fuel when you press the throttle
  • Hard starting: The engine cranks but takes longer than usual to fire up
  • Stalling: The machine dies unexpectedly, especially under load
  • Abnormal noise from the fuel tank: A whining or humming sound indicates the pump is working harder than normal
  • Loss of power on inclines: The engine struggles when operating on hills or uneven terrain

These problems occur because the pump can no longer maintain the required fuel pressure to keep the engine running properly.

Choosing the Right Fuel Pump for Your Bobcat

Bobcat fuel pumps are not one-size-fits-all. Different models use different pumps, and even within the same model family, pumps can vary based on engine type and serial number .

Common Bobcat Fuel Pump Part Numbers and Applications

Here are some frequently used replacement fuel pumps and the machines they fit:

1. Fuel Pump 7000767
This genuine Bobcat OEM pump fits a wide range of equipment, including Skid Steer Loaders (S160, S185, S205, S550, S570, S590, S630, S650), Track Loaders (T180, T190, T550, T590, T630, T650), and Toolcat 5600/5610 models . Aftermarket versions are available for around $81 .

2. Fuel Pump Replacement Kit 7258260
This complete kit generates positive electrical pressure in the fuel lines and is designed for Bobcat Utility Vehicles 3400 and 3400XL . The kit contains the complete module, fuel pump, fuel pressure regulator, retaining nut, and gasket. It costs around $179.99 for aftermarket versions .

3. Fuel Injection Pump 6672389
This genuine Denso fuel injection pump is compatible with Bobcat machines using Kubota D1105, D1005, D905, and D1305 engines . It fits Skid Steer Loaders (463, 553, S70), Mini Excavators (E25, E26), Backhoes (B100, B200, B250), and Loaders (BL275). The price is around $899-$909 .

4. Fuel Pump 6670432 (Replaces 16006-51012)
This remanufactured fuel injection pump is designed for Kubota D662-E, D722, and D750 diesel engines . It fits Bobcat 453 and MT52 models, as well as several Kubota tractors and utility vehicles. It comes with a 12-month warranty and costs around $899.

5. Fuel Pump 6680838 / 7011982
This aftermarket replacement pump fits Bobcat models including A300, A440, S220, S250, S300, T250, and T300 . It is a two-hole mount pump with a gasket included.

Important: Always check your equipment's serial number using the Bobcat Online Parts Catalog or the Serial Number Parts Finder before purchasing . Parts can vary depending on your serial number and engine type, so verifying compatibility is critical.

How to Replace a Bobcat Fuel Pump: Step-by-Step

Replacing a fuel pump on a Bobcat is a moderate to advanced DIY job that typically takes 2-4 hours . Here is a practical guide based on common repair procedures:

Step 1: Safety First

  • Park the machine on a level surface and engage the parking brake
  • Disconnect the battery negative terminal to prevent accidental sparks or engine starts
  • Relieve fuel system pressure by locating the fuel pressure relief valve (usually near the fuel rail or pump) and depressing it - you will hear a hissing sound as pressure is released
  • Wear safety goggles and gloves, and have a drain pan ready to catch any spilled fuel

Step 2: Locate and Access the Fuel Pump Assembly

The fuel pump assembly is typically located inside the fuel tank, which is usually mounted beneath the operator's platform or rear frame . Consult your Bobcat service manual for a diagram of the fuel system. If you do not have the manual, trace the fuel lines from the engine compartment back to the tank to locate it.

Step 3: Remove the Fuel Tank

  • Drain the fuel tank as much as possible using a siphon pump
  • Disconnect the fuel lines and electrical connections at the tank, noting their positions for reassembly
  • Remove the mounting bolts or brackets holding the tank in place
  • Carefully lower the tank and set it on a clean work surface

Step 4: Remove the Old Fuel Pump Assembly

  • Remove the retaining ring or locking nut that holds the pump assembly in the tank
  • Lift the pump assembly out of the tank carefully
  • Clean the area around the pump opening and inspect for debris or damage
  • Note the orientation of the pump and how the fuel lines and electrical connectors attach

Step 5: Install the New Fuel Pump Assembly

  • Transfer any necessary components from the old assembly to the new one (such as the fuel level sensor, if applicable)
  • Install the new pump assembly into the tank, making sure it is properly seated
  • Secure it with the retaining nut or locking ring and a new gasket
  • Reattach the fuel lines and electrical connections exactly as they were on the old assembly

Step 6: Reinstall the Tank and Test

  • Lift the fuel tank back into position and secure it with the mounting bolts
  • Reconnect the fuel lines and electrical connections at the tank
  • Reconnect the battery negative terminal
  • Turn the key to the "ON" position (without starting) to allow the fuel pump to prime the system - listen for the pump to cycle on and off
  • Check for fuel leaks at all connections
  • Start the engine and let it idle, checking for smooth operation and no leaks

Estimated cost: Parts and tools for a DIY replacement typically cost between $100 and $300, depending on the pump model . Professional installation adds significant labor costs.

Why You Should Choose KEMSO Fuel Pumps for Your Bobcat Replacement

When it comes to replacing your Bobcat's fuel pump, quality matters. KEMSO fuel pumps are the ideal choice for anyone looking for a reliable, high-performance replacement that will last. Here is why KEMSO stands out:

Superior Performance: KEMSO fuel pumps deliver over 20% more flow at 43 PSI compared to stock OEM pumps . This means your Bobcat gets consistent fuel delivery even under heavy load, reducing the risk of hesitation and stalling.

True OEM Replacement: KEMSO pumps are designed as direct OEM replacements, meaning they bolt right in without any modifications or special tools . Whether you need a pump for a skid steer loader, mini excavator, or utility vehicle, KEMSO has a solution that fits.

Lifetime Warranty: Every KEMSO fuel pump comes with a lifetime warranty . If the pump ever fails for any reason, you get a replacement at no cost. This is rare in the fuel pump market and reflects the confidence KEMSO has in its product quality.

Engineered to Last: KEMSO pumps are built with upgraded internal components that resist heat and wear better than many factory parts . Each pump is individually tested for flow and performance, and the company follows strict quality control programs (ISO/TSO) .

Versatile Applications: KEMSO offers fuel pumps for a wide range of vehicles, including off-road equipment, motorcycles, ATVs, and automobiles . Their pumps work with both gasoline and E85/ethanol fuel blends .

Trusted by Enthusiasts and Professionals: With a strong reputation in the automotive and powersports markets, KEMSO is a brand you can count on. Their customer reviews confirm the reliability of their products, and their support team is responsive and knowledgeable .

Visit KEMSO's official website today to browse their full selection of high-performance fuel pumps:
https://www.kemsoracing.com/

On their site, you will find detailed product listings, fitment guides, and customer reviews. The ordering process is simple, and they ship across the United States. If you have questions about which pump fits your Bobcat, their customer support team is ready to help.

Final Thoughts

A failing fuel pump in your Bobcat does not have to mean expensive downtime. By recognizing the warning signs early, choosing the right replacement part, and following the proper replacement procedure, you can get your machine back to work quickly and affordably.

Key takeaways:

  • Check your Bobcat's serial number and model before buying any pump to ensure compatibility
  • Look for aftermarket options that meet or exceed OEM specifications - they often offer better value
  • Replace the pump with a high-quality unit like KEMSO to avoid repeat failures
  • Always test the system for leaks after installation before putting the machine back to work

For the best selection of high-performance, OEM replacement fuel pumps with a lifetime warranty, visit KEMSO at:
https://www.kemsoracing.com/


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