A healthy 6.7 Cummins engine is a beautiful thing. But when those injectors start acting up, you’ll notice it right away. Rough idling, poor fuel economy, and a loss of power are all telltale signs. Replacing your injectors can feel like a big job, but it’s often the best way to get your truck back to its old self. We’ve looked at a bunch of options to help you find the best 6.7 Cummins injectors to suit your needs and budget.
Here’s a quick rundown of the injectors we’ll be covering:
- Bosch Remanufactured Fuel Injector: A reliable, factory-rebuilt option.
- Dynomite Diesel Performance Injectors: Performance upgrade for increased power.
- XDP Remanufactured Fuel Injector: A budget-friendly remanufactured injector.
- Alliant Power Fuel Injector: A quality aftermarket option designed for durability.
- Industrial Injection Stock Replacement Injectors: Direct replacements for a stock setup.
Top 5 Best 6.7 Cummins Injector Reviews
1. Bosch Remanufactured Fuel Injector
These are remanufactured injectors from Bosch, the original equipment manufacturer. They offer a great balance of performance and reliability, and they are a solid choice for anyone looking to restore their Cummins to its original glory. Bosch remanufactures these to meet the original factory specs.
Pros:
- ✅ Direct fit replacement, no modifications needed.
- ✅ Remanufactured by the original manufacturer.
- ✅ Provides reliable performance and fuel efficiency.
Cons:
- ❌ Can be pricier than some aftermarket options.
- ❌ Remanufactured, so not brand new.
- ❌ Core charge may apply, adding to the initial cost.
Verdict: These are a great choice for someone who wants a reliable injector and doesn’t mind paying a bit extra for the Bosch name and quality. It’s a solid, dependable option for stock or near-stock trucks.
2. Dynomite Diesel Performance Injectors
If you’re looking to boost your 6.7 Cummins’ horsepower, Dynomite Diesel injectors are worth considering. They offer various flow rates to match your performance goals. Just remember, you’ll likely need supporting modifications like a better turbo and tuning.
Pros:
- ✅ Significant horsepower and torque gains.
- ✅ Improved throttle response.
- ✅ Various flow rates available to match your needs.
Cons:
- ❌ Requires supporting modifications (turbo, tuning).
- ❌ Higher cost than stock replacement injectors.
- ❌ May reduce fuel economy if not properly tuned.
Verdict: These are a great option for enthusiasts who want more power from their Cummins, but they aren’t a drop-in replacement. Be prepared to invest in other upgrades to get the most out of them.
3. XDP Remanufactured Fuel Injector
XDP offers a remanufactured injector option that provides a more budget-friendly alternative to brand-new or Bosch remanufactured units. They are designed to meet or exceed OEM specifications and offer a good balance of value and performance. If you are on a tight budget but need a reliable replacement, XDP is worth a look.
Pros:
- ✅ Lower cost than new or Bosch remanufactured injectors.
- ✅ Remanufactured to meet or exceed OEM specs.
- ✅ Good option for budget-conscious buyers.
Cons:
- ❌ Remanufactured, not new.
- ❌ May not have the same longevity as premium options.
- ❌ Core charge often applies.
Verdict: These are a solid choice for those who need to replace their injectors without breaking the bank. They offer good value and reliable performance for the price.
4. Alliant Power Fuel Injector
Alliant Power is known for producing quality aftermarket diesel parts, and their 6.7 Cummins injectors are no exception. Designed for durability and performance, these injectors aim to provide a reliable and long-lasting solution. They are engineered to meet or exceed OEM specifications, ensuring proper fit and function.
Pros:
- ✅ High-quality aftermarket option.
- ✅ Designed for durability and long life.
- ✅ Meets or exceeds OEM specifications.
Cons:
- ❌ Can be more expensive than some remanufactured options.
- ❌ May not offer performance gains over stock.
- ❌ Availability can sometimes be limited.
Verdict: If you’re looking for a reliable, durable aftermarket injector, Alliant Power is a good choice. It’s a solid option for those who want a long-lasting replacement without necessarily seeking performance upgrades.
5. Industrial Injection Stock Replacement Injectors
Industrial Injection offers stock replacement injectors specifically designed to match the original specifications of your 6.7 Cummins. These are a straightforward replacement option for those who want to maintain their truck’s original performance and reliability. Ideal for daily drivers or work trucks, they ensure a smooth and consistent operation.
Pros:
- ✅ Direct replacement for stock injectors.
- ✅ Maintains original performance and reliability.
- ✅ Suitable for daily drivers and work trucks.
Cons:
- ❌ No performance gains over stock injectors.
- ❌ May not be suitable for modified engines.
- ❌ Can be pricier than some remanufactured options.
Verdict: These are perfect for those who simply want to replace their worn-out injectors with a reliable option that restores their truck to its original condition. It’s a no-frills, dependable choice for stock setups.
Buying Guide
Choosing the right 6.7 Cummins injectors can seem daunting, but focusing on a few key areas will help you make the best decision.
- Performance Needs: Are you looking for stock replacement injectors or performance upgrades? If you want more power, you’ll need injectors with a higher flow rate. But remember, increased flow requires supporting modifications.
- Budget: Injector prices can vary widely. Remanufactured injectors are generally more affordable than new ones. Consider your budget and how much you’re willing to spend.
- Brand Reputation: Stick with reputable brands known for quality and reliability. Bosch, Dynomite Diesel, Alliant Power, and Industrial Injection are all well-regarded in the diesel community.
- Core Charge: Many remanufactured injectors come with a core charge. This is a deposit you get back when you return your old injectors. Factor this into the overall cost.
- Warranty: Check the warranty offered by the manufacturer or seller. A longer warranty can provide peace of mind.
- Installation: Injector installation can be complex. If you’re not comfortable doing it yourself, factor in the cost of professional installation.
FAQs
Q: How do I know if my 6.7 Cummins injectors are bad?
A: Common symptoms include rough idling, excessive smoke, decreased fuel economy, loss of power, and a ticking sound from the engine.
Q: Can I install injectors myself?
A: Injector installation requires specialized tools and knowledge. It’s generally recommended to have them installed by a qualified mechanic.
Q: What is a core charge?
A: A core charge is a refundable deposit you pay when purchasing remanufactured parts. You get the deposit back when you return your old part to the seller.
Q: Do I need to tune my truck after installing new injectors?
A: If you install performance injectors with a higher flow rate, tuning is highly recommended to optimize performance and prevent potential issues.
Conclusion
Finding the right 6.7 Cummins injectors is a crucial step in maintaining or upgrading your truck. Whether you’re looking for a reliable stock replacement or a performance boost, there are plenty of options to choose from. Consider your needs, budget, and the advice in this guide to make an informed decision. A healthy set of injectors can make a world of difference in your Cummins’ performance and longevity.
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