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Aftermarket vs. OEM Diesel Engine Rebuild Kits

The debate of aftermarket vs OEM debate is as old as the auto industry itself. You will get people on both sides of the fence trying to convince anyone why aftermarket is better or why OEM rebuild kits are the only way to go.

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Cummins ISLG Natural Gas Engines Cylinder Head (4933818)

This is our standard, no-frills natural gas cylinder head. It comes loaded with all the essential components you need in an OE-quality cylinder head, and costs up to 50% less. But we didn’t stop there! This cylinder head has some serious improvements over the original OEM casting.

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Cummins ISLG Cylinder Head, Cummins Natural Gas Engines, Why they fail, Upgrades to new heads

Why You Should Buy Your Cummins ISL Natural Gas Cylinder Head From HHP!

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Bosch Denoxtronic 2.2 Supply & Dosing Module for Cummins (2888173)

At Highway and Heavy Parts, we do parts differently. We won’t just sell you any part, we won’t sell you just the lowest price part, and we certainly won’t sell you apart from an inferior supplier. That’s why we’re pleased to announce, we now offer genuine Bosch exhaust gas treatment components for heavy duty diesel applications.

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Why Are There Few Options For Natural Gas Cylinder Heads?

Due in part to high demand and low supply, people have had a hard time finding cylinder heads for their natural gas engines, leading them to spend money on parts they’ll just have to replace again soon.

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Why Is My Cummins ISLG Natural Gas Cylinder Head Cracking?

Is your cylinder head in your Cummins ISL or ISLG natural engine cracked in multiple places? Are you looking for a replacement head but cant find quality options?

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Natural Gas Cylinder Head, Cummins ISL G & ISL Diesel Engine, Cummins Engines, Why they crack?

Cummins ISL G & ISL Diesel Engine Natural Gas Cylinder Head Problems? HHP Can Help!

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Common Diesel Turbocharger Problems

Modern diesel engines all have turbochargers. Boosting your internal combustion engine’s potential both physically and figuratively is nothing new. Diesel engines have been taking advantage of wasted exhaust gas for decades.

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When Is It Time To Rebuild My Detroit Diesel DD15?

Rebuilding your engine can be a large and costly job. And we know that choosing the right kit for your engine can sometimes be difficult.

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Differences in DD15 Pistons And When You May Need An Overhaul

Ever wonder why there are many different types of pistons in your diesel engine? And why certain pistons are included in your engine rebuild kits?

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Your Premier Source for Cummins Heavy-Duty Engine Parts

Highway and Heavy Parts is the premier source for high-quality heavy-duty Cummins diesel engine parts. You know the value of dependable and long-lasting parts as a fleet owner, technician, or equipment operator to maintain your Cummins engines operating at their peak efficiency.

Here you will find blogs that focus on Cummins diesel engines and the heavy-duty parts you need to keep your large truck on the road. Read about diesel engine issues, diagnostic tips, and the best engine parts for the job.

Complete Cummins Engine Coverage

Popular Cummins Engine Models

Our comprehensive inventory covers all major Cummins engine families, including ISX, ISX15, N14, ISM, ISC, M11, and X15 engines. Whether you’re maintaining legacy engines or modern powerplants, we stock the critical components needed to keep your Cummins engines performing at their best.

ISX and N14 Engine Solutions

The ISX12 and ISX15 were involved in the phase out of the N14 and M11 engines, which were unable to meet emissions standards. Because of the shift to electronic controls, the N14 has more valve train components than the ISX. We carry parts for both engine families to support your fleet’s diverse needs.

Quality Cummins Components & Services

Engine Rebuild Parts

From complete engine rebuild kits to individual components, our Cummins parts selection includes pistons, cylinder heads, fuel injectors, turbochargers, and gasket sets. Whether you’re performing routine maintenance or major rebuilds, we have the quality parts you need.

Engine Identification Support

Need help identifying your Cummins engine? For ISB engines, you’ll find the serial number on your rocker cover or on the side of the gear housing. For Cummins ISM engines, the serial number is located on the rocker housing on the fuel pump side. Our experts can help you identify the right parts for your specific engine model.

Why Choose Highway and Heavy Parts for Cummins?

Unmatched Expertise

Our diesel engine experts understand the evolution of Cummins engines and can help you navigate the differences between engine families. From the mechanical N14 to the electronic ISX series, we know what it takes to keep these engines running strong.

Quality & Reliability

Every Cummins component in our inventory meets or exceeds OEM specifications. We understand that downtime is costly, which is why we stock only the highest quality parts designed for durability and long-lasting performance.

Comprehensive Support

Whether you’re rebuilding a Cummins ISX or maintaining an N14, our team provides expert technical support and fast shipping to minimize your equipment downtime. We serve fleet owners, technicians, and equipment operators with the parts and knowledge they need.

Fast Service & Shipping

With our extensive inventory and efficient logistics, we can quickly get you the Cummins parts you need. Our commitment to fast service helps keep your heavy-duty equipment operational and productive.

Browse Our Complete Cummins Parts Catalog

Browse our complete Cummins parts catalog today and discover why Highway and Heavy Parts is the trusted choice for diesel professionals nationwide.