Fuel Injector for 2007 - 2010 6.6L LMM Chevy/GMC Duramax
Fuel Injector for 2007 - 2010 6.6L LMM Chevy/GMC Duramax
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Our remanufactured LMM Duramax fuel injector is a direct OEM replacement for 2007.5–2010 Chevrolet Silverado and GMC Sierra trucks equipped with the 6.6L LMM Duramax diesel engine. Professionally rebuilt to meet or exceed OEM specifications, each injector is precision tested on a Nova Ditex EDX-611 common rail injector test stand to verify proper fuel delivery, return flow, injection performance, and overall operation before shipment.
Whether you're replacing a failed 6.6L LMM injector, repairing an injector balance rate issue, or restoring lost power, our remanufactured injector delivers dependable OEM-quality performance at an exceptional value. This injector arrives ready for installation with a new copper washer and external O-rings already installed.
🧰 Easy Installation + Core Charge Information
Our 6.6L LMM Duramax fuel injector is professionally remanufactured and arrives ready to install.
✅ 1-Year Unlimited Mileage Warranty
✅ Precision tested before shipment
✅ Tested on a Nova Ditex EDX-611 common rail injector test stand
✅ New copper washer installed
✅ New external O-rings installed
✅ Ready for installation
⚠️ Core Charge Information
Due to the limited availability of LMM Duramax injector cores, this product requires either a refundable core deposit or your core to be received prior to shipment.
Option 1 – Pay the Refundable Core Deposit (Most Popular)
- Pay the $100 refundable core deposit during checkout.
- Your order will ship once payment has been received.
- Return your old injector within 60 days of receiving your order.
- Your $100 core deposit will be fully refunded once your core is received and approved.
Option 2 – Send Your Core First
- Ship your old injector to Diesel Care & Performance before placing your order.
- Once your core has been received and approved, your order will be processed.
- No core deposit is required when an approved core is received before shipment.
📞 Questions? Call our diesel experts at 1-800-961-9290.
Please Note: This product does not qualify for deferred core returns. A refundable core deposit must be paid prior to shipment, or an approved core must be received before your order can be fulfilled.
🔍 Why Choose Diesel Care & Performance?
For nearly 20 years, Diesel Care & Performance has been a trusted supplier of Duramax fuel injectors, diesel fuel systems, and OEM-quality replacement diesel components.
Every injector is:
- Professionally disassembled
- Thoroughly cleaned
- Carefully inspected for wear and damage
- Rebuilt using premium-quality components
- Precision tested on a Nova Ditex EDX-611 common rail injector test stand
- Verified to meet or exceed OEM specifications
- Lubricated before packaging
- Individually wrapped for protection during shipping
Each injector is individually tested before leaving our facility to ensure dependable performance, proper fuel delivery, and long-lasting reliability.
🚨 Common Signs of a Failing LMM Duramax Fuel Injector
If your LMM Duramax fuel injector is beginning to fail, you may notice one or more of the following symptoms:
- Loss of engine power
- Hard starting
- Rough idle
- Injector balance rate issues
- Poor throttle response
- Excessive black smoke
- Excessive white smoke
- Increased fuel consumption
- Misfires
- Fuel knock or injector noise
- Check Engine Light
Replacing a worn or failing 6.6L LMM Duramax fuel injector can restore horsepower, improve throttle response, reduce excessive smoke, improve fuel economy, and return your Duramax diesel engine to reliable operation.
🛡 Warranty Information
Your injector is backed by our:
✅ 1-Year Unlimited Mileage Warranty
Diesel Care & Performance recommends reviewing our warranty policy before installation to fully understand warranty coverage and installation requirements.
🔧 Vehicle Fitment
This remanufactured LMM Duramax fuel injector fits the following vehicles equipped with the 6.6L LMM Duramax diesel engine:
Chevrolet
- 2007.5 Silverado 2500HD
- 2008 Silverado 2500HD
- 2009 Silverado 2500HD
- 2010 Silverado 2500HD
- 2007.5 Silverado 3500HD
- 2008 Silverado 3500HD
- 2009 Silverado 3500HD
- 2010 Silverado 3500HD
GMC
- 2007.5 Sierra 2500HD
- 2008 Sierra 2500HD
- 2009 Sierra 2500HD
- 2010 Sierra 2500HD
- 2007.5 Sierra 3500HD
- 2008 Sierra 3500HD
- 2009 Sierra 3500HD
- 2010 Sierra 3500HD
Not sure this is the correct LMM fuel injector for your truck?
📞 Call 1-800-961-9290 and one of our diesel experts will verify your application before ordering.
🔄 OEM & Cross Reference Part Numbers
This OEM replacement LMM Duramax fuel injector interchanges with the following OEM and aftermarket part numbers:
- 0445120082
- 0986435520
- 0986435520RX
- 0 986 435 520
- 0 986 435 520RX
- 19208742
- 2172912
- 2411300001
- 2900717000
- 2-90071-700-0
- 502516
- 502-516
- 68002368
- 732504
- 732-504
- 8980023684
- 8-98002368-4
- 97780360
- 98002368
- AP55520
📦 Product Features
- Single remanufactured LMM Duramax fuel injector
- Direct OEM replacement
- Fits 2007.5–2010 Chevrolet Silverado & GMC Sierra equipped with the 6.6L LMM Duramax diesel engine
- Meets or exceeds OEM specifications
- Precision tested on a Nova Ditex EDX-611 common rail injector test stand
- New copper washer installed
- New external O-rings installed
- Ready for installation
- Individually lubricated and packaged
- Backed by a 1-Year Unlimited Mileage Warranty
- Ideal for replacing a failed injector while maintaining OEM performance and reliability
🚚 Order with Confidence
When you purchase from Diesel Care & Performance, you're buying from a company with nearly 20 years of diesel fuel system experience. Every LMM Duramax fuel injector is professionally remanufactured, individually tested, and carefully packaged to provide dependable performance from the moment it arrives.
Whether you're replacing a failed injector, correcting an injector balance rate issue, or restoring lost engine performance, you can purchase with confidence knowing your injector is backed by our 1-Year Unlimited Mileage Warranty.
📞 Need help with fitment, core returns, or installation? Call our diesel experts today at 1-800-961-9290. We're here to help you get the right part the first time.

Policies
Core Policy
All orders which required the return of a core also require that Diesel Care and Performance has a signed core agreement and a valid credit / debit card on file prior to fulfillment and shipment of the order. If you do not wish to have a credit card on file for your convenience, you may pay for the core value at the time of order fulfillment, or Diesel Care and Performance may hold your order until the cores are received into our facilities. Once cores are received, inspected, and processed, we will fulfill and ship your order.
The on-file payment method will not be charged unless the core is not returned within 35 days of product delivery. Once the core return is deemed late, the customer agrees to a 1% late fee per day, totaling no more than 30% of the monetary value of the cores, also known as consecutive late fees, until the core is either returned to Diesel Care and Performance, or the full monetary value of the core is billed to the customer.
Core Return Policy
If you have purchased an exchange product, your order requires the return of a core. Cores must be returned within 35 days from the date of delivery to avoid late fees or core charges billed to your account. We are unable to provide a return shipping label for your cores, but we strongly suggest including this form in the box with your cores to ensure the core credit is awarded to the correct account. We also suggest documenting the tracking number for your core return shipment, and monitoring its transit until the tracking number shows delivery. If you are charged for cores or late charges and attempt to dispute the charges, you will be expected to provide a valid tracking number showing delivery of a valid weight to redeem credit.
Packaging Instructions
We suggest removing all drain plugs and completely draining oil from your core unit prior to packaging and shipment.
- Properly secure the cores into a box with at least three inches of clearance on all sides.
- Use an appropriate container, cushioning materials and at least three strips of packing tape.
- If reusing packaging, remove or black out old shipping labels including their barcode(s).
For more information, please contact our offices at 901-343-6453 or via email at sales@dieselcare.net
Warranty
Diesel Care and Performance offers products with various warranty coverage. Our 3 main warranty options are Refurbished, Standard, and Premium. The warranty terms and conditions of each warranty option are the same, varying only in length of coverage. High performance products will not carry a warranty of any kind. All specific warranty coverage options are listed in the product description. For more information, please click here..
REFURBISHED
- 90-Day Warranty Coverage
STANDARD
- 1 Year Warranty Coverage
PREMIUM
- 2 Year Warranty Coverage
Installation of our products constitutes your agreement with the following warranty disclaimer. Please do not install our products until you have read, understand and agree to the following warranty policy.
WARRANTY TERMS
Diesel Care and Performance Inc. hereafter mentioned as DCP, issues the following warranty on all DCP product. This warranty is extended to the original purchaser of the product only, unless approved of in writing by DCP. Our product is warranted to be free from defects in material or workmanship under normal use and service, for a period of one year from the original purchase date. The obligation of DCP under this warranty is limited to the repair or exchange of the defective unit. Either repair of unit or replacement of the unit shall be at the sole discretion of DCP. If an exchange unit is provided, the old, defective unit must be returned within 15 days of the failure date to be considered for warranty. DCP warranty agreement is limited to one year from product purchase, unless otherwise stated at time of purchase of premium (2 year) or extended warranty terms.
WARRANTY DISCLAIMERS
This limited warranty is in lieu of all other warranties, either expressed or implied. All obligations or liabilities of DCP are expressly disclaimed, including claims for REMOVAL AND REINSTALLATION expenses, liability of consequential damages, down time, loss of revenue, or any other inconvenience cost. Our product is intended to be installed by the purchaser of DCP product. Any damage or defect caused by a third-party installer is the sole responsibility of the original purchaser of the product. In addition, DCP is not responsible for any R & R expenses, liability of consequential damages, down time, loss of revenue, or any other inconvenience cost relative to third party installers of our product. Any product that is not installed according to the manufacturer’s guidelines is not covered under any warranty by DCP. DCP assumes no liability or responsibility for pump failure that are the result of the use of fuels and/or additives not approved by the original manufacturer of the engine and/or vehicle. This warranty does not apply to any part or unit that has been altered or repaired by anyone other than DCP. Nor, to any product which has been subject to misuse, abuse, neglect, accident, improper installation, or damage from foreign material such as water or dirt. This warranty will only be honored at the facilities of DCP.
Refunds
Refund Summary:
- Diesel Care and Performance will only refund the full product amount if product is return within 30 days of the delivery date and is uninstalled. Shipping cost will not be refunded under any circumstance.
- If your product is already installed, or falls outside our 30-day window, Diesel Care and Performance reserves the right and discretion to impose a 20% restocking fee of the product value. If a product is returned after 90 days from the order date, Diesel Care and Performance reserves the right to impose a 40% restocking fee.
- Diesel Care and Performance will not allow any product to be returned for credit for orders older than 6 months, regardless of circumstance. Again, no credit will be issued on any order older than 6 months.
This is a summary of our complete refund policy. For a complete copy of our Refund Policy, please click here.