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1989-1993 5.9L 12 Valve Cummins Parts

Pure Diesel Power offers a large variety of parts for the 1989-1993 Dodge D250 & D350 pickups equipped with the 5.9L Cummins diesel that feature the VE rotary injection pump. We offer performance parts, air intakes, exhaust systems, maintenance items, fuel system parts, turbos, overhaul kits, transmission parts & components, and much more. 

We offer many different parts options for both intercooled and non-intercooled trucks. 1989-1991 trucks were not intercooled, whereas 1991.5-1993 trucks were intercooled. 

Let the Rubber Hit the Road With Aftermarket 1st Gen Cummins Parts

Unleash the full potential of your 1st Gen Cummins engine with a wide range of 1st Gen Cummins aftermarket parts. From power upgrades to improved efficiency and durability, aftermarket options offer endless possibilities to customize and optimize your Cummins-powered truck.

1st Gen Cummins Air Intakes

When it comes to optimizing the performance and efficiency of your 1st Gen Cummins, upgrading your air intake system is a great first step. The air intake system plays a vital role in supplying your engine with a steady flow of clean, oxygen-rich air, which is essential for combustion and power generation. Upgrading your air intake improves engine performance, fuel efficiency, and overall driving experience.

1st Gen Cummins Exhaust

The exhaust system of your 1st Gen Cummins engine is an essential modification. An aftermarket exhaust system enhances your truck's aesthetic appeal and delivers tangible benefits in terms of power and torque.

1st Gen Cummins Transmission

The stock transmission may not always be able to handle the increased power and torque generated by aftermarket modifications. Upgrading to a robust aftermarket 1st Gen Cummins transmission ensures power is efficiently transferred to the wheels.

1st Gen Cummins Turbos

Upgrade the power and performance of your 1st Gen Cummins with a turbocharger designed to deliver exhilarating performance and increased horsepower. The turbocharger helps in maximizing the engine's efficiency by compressing air and delivering it to the combustion chamber. Upgrading to an aftermarket 1st Gen Cummins turbocharger allows you to unlock the true potential of your Cummins-powered diesel truck.

Other 1st Gen Cummins Parts

While air intakes, exhausts, transmissions, and turbochargers are great ways to boost the performance of your first gen Cummins diesel engine, there are more aftermarket performance parts that can greatly influence your truck's power, fuel efficiency, and overall drivability.



      Fuel Pumps

      Exhaust Manifolds

      Air Intake Systems

●      Exhaust Systems

1st Gen Cummins Performance Parts, Specs, & History

One of the grandfathers of American diesel power, the 1st Gen Cummins engine remains an enduring symbol of performance and attitude. After thirty years of reliable service and dependability, Dodge’s 1st generation truck featuring the Cummins engine remains a very popular collector’s item and contains a rotary-style mechanical injection pump. 


When it comes to performance upgrades for your 1st Gen Cummins, a wide range of aftermarket parts are available to help you unleash its full potential. Whether you're looking to enhance its horsepower, torque, or fuel efficiency, there are performance upgrades designed to cater to your specific needs.


Beyond performance upgrades, it's essential to understand the historical significance of the 1st Gen Dodge Cummins engine. Its introduction marked the beginning of a new era in diesel power, revolutionizing the truck industry. With its reputation for reliability and dependability, the 1st Gen Dodge Cummins has become an icon among enthusiasts and truck owners.

History of the Dodge 1st Gen Cummins Diesel Engine

Back in 1981, Dodge introduced their first Ram pickup. It was designed as a successor to the D-series and intended to compete with Ford and Chevy in the passenger truck space. Available in single cab, crew cab, and extended cab variants, the Dodge Ram saw middling success in the 1980s.


It wasn't until 1989 — with the introduction of the 12-valve, six-cylinder Cummins (B Series) diesel engine — that the Dodge Ram pickup became a staple in the American automotive landscape. The first generation Dodge Ram began using a 5.9-liter Cummins modified B series engine that saw a lot of use in school buses, box trucks, delivery vans, and other commercial vehicles.


Dodge took the B series engine and dropped it into its 1989 chassis. The 5.9L turbo-diesel became one of the best-selling pickups on the market. The 1st Gen Dodge Ram with a Cummins diesel engine was so popular that Chrysler had to stop taking orders for it in 1989.


Despite a modest 160hp at 2,500rpm, the Cummins diesel engine was a class leader with 400 lb-ft of torque at 1,700rpm. Coupled with Dodge's foresight to offer an all-welded bed floor design — which eliminated trapped water and rust formation around fittings — the Dodge Ram became a long-lasting success,

Then and Now: The Dodge/Cummins Partnership

Today, the 1st Gen Cummins diesel pickup from Dodge Ram has become an American classic. The 1st Gen Dodge with the 5.9L Cummins remains a highly sought-after work truck and collector's item. People love the 5.9L Cummins diesel engine so much that many truck collectors and hobbyists will retrofit older models of the Dodge Ram pickup to harness the potential of its big block design.


Changes to emissions standards, engine sizes, and other introduced technologies have pushed modern diesels to output more torque and horsepower. However, the Cummins diesel paired with the 1st Gen Dodge Ram remains a classic.

Frequently Asked Questions About the 1st Gen Dodge Cummins Engine

We could only cover some things about our selection of 1st Gen Cummins engine parts. Here's some more information our customers frequently ask about.

What Model Years Include the Cummins Engine?

The production line from 1989 to 1993 included the Cummins diesel engine in the first generation of Dodge Ram pickup. 1989 was the introductory year of the 5.9L inline-six that made the Dodge diesel pickup truck one of the most popular trucks in the country.

Do Dodge Ram Pickups Still Use Cummins Engines?

Yes. The 5th generation of Dodge Ram pickup is currently powered by a Cummins diesel engine. This generation has been running since 2019, with the 6th generation expected to launch in 2024.

What Are the Most Common Upgrades for a 1st Gen Dodge Cummins Engine?

Many of the upgrades you want for your Cummins 1st Gen diesel engine will depend on what you hope to achieve. Having a goal in mind — more power, better fuel economy, etc. — will help determine which upgrades to pursue. If you have any questions about what you want to order, contact us, and we will help you decide on the best products for your 1st Gen Cummins engine.

Order 1st Gen Cummins Performance Parts Online

Take your 1st Gen Cummins to new heights of performance and reliability with Pure Diesel Power, your ultimate destination for top-quality performance parts. As a trusted industry leader, we specialize in providing a wide range of performance and replacement parts specifically designed to meet the needs of your 1st Gen Cummins diesel engine.


Whether you're looking to maintain your beloved Cummins powerhouse or seeking to upgrade its capabilities, our extensive selection of parts has you covered. From fuel injectors to turbochargers, exhaust systems to air intakes, and everything in between, we have the products you need to unlock the true potential of your 1st Gen Cummins.


At Pure Diesel Power, we source our products from today's top brands, ensuring you have access to the highest quality parts available in the market. We meticulously select our inventory to ensure superior performance, durability, and reliability, so you can confidently enhance the performance of your diesel engine.


Don't wait any longer to elevate your 1st Gen Cummins to its full potential. Take action today and order your 1st Gen Cummins engine parts from Pure Diesel Power.


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