Owners of excavators, tractors, and similar machinery rely on fuel injectors to precisely control the injection of fuel. However, they may find poor injector performance, misalignment, or clogging, which means replacing a new one. Upgrading for enhanced performance is often the best solution. But how much does a fuel injector cost? And how do you replace one?
Following a step-by-step guide can make replacing a fuel injector easier. Typically, the installation cost falls within the budget, ranging from $100 to $250. Here, you can find compatible fuel injectors that meet OEM quality standards, such as DD15, E46 fuel injector, or Duramax fuel injectors, etc. Different brands and models may vary in replacement costs. With a wide selection available, there’s surely one suitable for your excavator or model.
How often should fuel injectors be inspected?
Generally, fuel injectors should be inspected and adjusted every 500-600 hours to repair or replace damaged components and ensure optimal performance of the diesel engine.
How to replace a fuel injector?
Replacing a fuel injector involves several steps and requires certain tools, such as needle-nose pliers and wrenches.
Step 1. Locate the black return pipe and use needle-nose pliers or snap ring pliers to remove the pipe clamp and pull out the return pipe.
Step 2. Loosen the screw of the high-pressure oil pipe at the injector pump end, then use a wrench to remove the screw at the cylinder head cover end of the high-pressure oil pipe.
Important: Do not force the high-pressure oil pipe to avoid bending or breaking it.
Step 3. Use a socket wrench to loosen the two nuts that secure the injector, remove the cover plate above the injector, and then remove the injector.
Please note the following:
- If the injector is difficult to pull out, gently pry the connection of the return pipe with the handle of a socket wrench to make it easier to remove the injector.
- When removing the injector, be aware that there is a heat shield and copper washer underneath. The heat shield is at the bottom, followed by the copper washer, which may have two or more layers depending on the machine model.
- If the heat shield and copper washer remain in the injector hole after removing the injector, reinsert the injector and tighten it before pulling out the heat shield.
- Check if the rubber edge of the heat shield is damaged, cracked, or burnt. If so, replace it with a new one.
- If there is no damage, place the heat shield and copper washers in the correct order on the new injector.
Step 4. Align the locator pin on the injector with the locator groove on the cylinder head and slowly insert the injector into the hole.
Step 5. Install the injector cover plate with the smooth side facing down. Then tighten the two securing nuts.
Step 6. Reinstall the high-pressure oil pipe and tighten the nuts, then tighten the high-pressure oil pipe nut at the injector pump end.
Step 7. Finally, reconnect the return pipe and secure the pipe clamp.
How much does a fuel injector cost?
The replacing fuel injector cost mainly depends on the brand of equipment and the installation method chosen. Opting for professional installation may range from $100 to $500, with labor costs typically on the higher side. For a DIY installation guide, please feel free to contact our parts expert. Prices range from $23 to over a thousand dollars, depending on type and quality.
Fuel injector supplier – FridayParts
As a reliable fuel injector supplier, FridayParts.com offers a wide range of fuel injectors, exceeding OEM quality standards. Our products are known for easy installation compared to others on the market. Additionally, the cost of replacing fuel injectors is satisfying. Our dedicated customer service team provides detailed installation procedures and addresses any issues encountered during installation, ensuring a pleasant shopping experience and satisfactory results. Last but not least, FridayParts is your one-stop online shop, providing competitively priced OEM-quality engine parts and excellent service. And do not forget the deals before ordering. FridayParts deals: https://www.fridayparts.com/deals.
