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Merchant Automotive Merchant Automotive Fuel Injector - LB7, Duramax| 2001 - 2004

$299.95 - $3,525.19


Due to daily fluctuating stock levels, please call (616) 772-9551 for time sensitive orders.

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Product Information

Duramax Diesel Bosch Fuel Injector

Faulty Duramax fuel injectors can cause your diesel engine to run rough and give you poor performance from your truck. You may experience anything from engine misfiring up to no-start conditions with a faulty fuel injector. Clogged or faulty fuel injectors will most certainly present themselves with some type of drivability issue on your LB7 equipped truck.

If you are experiencing slight misfiring or rough idling, you may only have one fuel injector that is causing the problem. Since fuel injectors are not a common wear item, it can be quite costly to replace them all for one failing injector. That is why we offer our fuel injectors in a kit of 8 or as a single injector, much like this one.

This single fuel injector is the same fuel injector that came on your LB7 engine to restore factory-like driving performance. There are no core charges on these injectors and they are backed by a 12-month, unlimited mileage warranty. This is the perfect injector to replace one clogged or faulty injector on your Duramax Diesel.  


  • Direct Replacement
  • Allows For Replacing Single Fuel Injector
  • OEM Like Fit And Finish


  • Designed For LB7
  • No Core Charge
  • Can Be Purchased Individually Or In Kit

What's In The Box

  • 1 LB7 Fuel Injector

Symptoms Of Clogged Or Bad Duramax Fuel Injector

One of the most common questions revolving around Duramax fuel injectors is “how do I know if my Duramax fuel injector is bad?”. Like any vehicle, a bad fuel injector can present itself in a few different ways. If you experience the following symptoms, you may want to have your fuel injectors professionally tested:

  • Engine Misfiring
  • Rough Idling
  • Gas Mileage Decreases
  • RPM Needle Bounces
  • Truck Becomes Hard To Start
  • Truck Won’t Start

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