N14 Cummins for Sale
Every machine, vehicle, or heavy movers rely on their engines to power them. Engines are the heart of any machinery, that is why professionals emphasize choosing the right engine. If you have the engine that fulfills your needs, then it’s half the job done.
This is precisely why diesel engines are preferred the world over for performing heavy-duty tasks and providing the right amount of output with minimum fuss and investment.
Diesel engines have been powering vehicles and machines for decades and they have only grown from strength to strength.
Their efficiency and effectiveness are unparalleled as compared to their counterparts, and all this without requiring too much maintenance and repair work.
Learn more: How to Choose Used Cummins Diesel Engine Compression That Suit You Best?
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Why the N14 Cummins is still in demand?
Those who love machines would know that one such diesel engine that remained one of the top choices for commercial trucks, RVs, and agricultural and construction equipment is Cummins N14.
It is considered quite easily the best engine that the brand has manufactured from its range of all products. And so, it comes as no surprise that it is a part of the coveted 1,000,000-mile club. Manufactured keeping in mind the best engineering fundamentals and a great design, the N14 was amongst the first to have an electronic control system.
It was first designed in the late 1980s before going into full production in 1991, and since then, it continued to rule the hearts of countless professionals who swore by its amazing performance, durability, efficiency, and unparalleled experience.
It is believed to be the follow-up of Cummins 855 Big Cam that was manufactured between 1976 and 1985. Keeping in mind the feedback and demand by its loyal customer base, Cummins designed a more powerful engine while keeping the basics of 855 Big Cam in its new product.
And the result was an improved engine that quickly became the sweetheart of all professional users who could not imagine using any other vehicle/machine that didn’t have a Cummins N14. The only noticeable difference between these two engines was that the air-to-air cooling system was modified while keeping the rest of the specs intact.
This amazing engine was produced till 2001 and during this period, it went through a number of changes. Amongst all of them, the most significant one was the inclusion of the Electronic Control Module (ECM). Even though Cummins was not the first brand to include ECM, it sure mastered the art of incorporating it N14 and making the most out of it.
It was Detroit Diesel that first launched the electronic controlled diesel commercial engine with its Series 60 Engine, and Cummins followed suit later on. In 1994, the first EPA Tier emissions regulations were launched making it clear to the world that electronic diagnostics was the future and the manufacturer introduced the electronic injection cycle with Cummins N14 Celect.
Over a period of time, the engineers at Cummins have added several amazing specs that make the N14 a dream engine. From adding new kinds of pistons for better performance to developing a new kind of engine oil, particularly for the N14, there have been some marvelous additions to its repertoire.
Cummins N14 Specs
- Manufacturer: Cummins Inc.
- Production Years: 1987 – 2001
- Applications: Class 7/8 on-highway trucks
- Configuration: Inline 6 Cylinders
- Engine: 4-cycle turbo diesel
- Engine block: Cast iron, wet cylinders liners
- Compression ratio: 14.0 to 17.0: 1
- Engine brake clearance: 0.023 inches
- Injection: Between 1987 to 1989, it had a mechanical injection pump, camshaft controlled mechanical unit injectors, and pressure-time (PT) injection system. Between 1990 and 1996, things changed to electronically controlled injected systems, electronically actuated unit injectors. And from 1997 onwards, it was N14 Celect Plus EC injection system
- Dimensions: 59 inches length, 37 inches width, and 51 inches height
- Weight: 2,550 to 2,625 lbs dry | 2,650 to 2,750 lbs wet (approximate figures)
- Oil capacity: 11 US gallons
- Operating Oil Pressure: 10 – 25 pounds per square inch
- Horsepower: 310 – 525 hp @ 1,800 – 2,100 RPM
- Maximum Speed: 2100 RPM
- Intake Valve Clearance: 0.014 inches
- Exhaust Valve Clearance: 0.027 inches
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N14 Fuel System
Built on a powerful diesel engine, the N14 went through slight modifications after some regulatory changes were suggested by the Environment Protection Agency. And the brand made the most of this opportunity and re-branded the engine to ‘Cummins N14 Celect’.
And as mentioned above, it utilized an electronically controlled module (ECM) to regulate the amount of fuel being provided to the newly installed electric fuel injectors. This made the operation and functioning even better for the N14.
Some common issues with The Cummins N14 Engine
- Injector conking off
- Overfilling of injectors with fuel
- Cracked cylinder head
- Camshaft failure
- Lack of oil pressure Scored pistons and liners
- Connecting rod failure
- Oil cooler clogging
- Fraying of fuel lines impacting the fuel delivered
Even though there are certain issues with the engine and its injectors, the N14 is still the workhorse that will get your work done in any situation. No wonder those who love their vehicle’s engine still swear by Cummins N14’s ability to overpower several of its competitors.
The machine has been crafted to last and perform the most difficult tasks. A niggle here and there can’t undermine the actual ability of the engine.
Frequently asked questions about N14 Cummins and N14 Celect Plus
Why is Cummins N14 still called one of the best diesel engines?
The Cummins N14 was built in 1987 and came into full production in 1991. And since then, it is regarded as the best engine Cummins Inc. manufactured. It is considered a workhorse by professional users for its amazing power and performance ability even in difficult conditions. Furthermore, its fuel efficiency has been one of the top-selling points. Be it oversized trucks, LVs, agricultural or construction equipment, Cummins N14 has been the first choice.
What are some of the issues that Cummins N14 poses to its users?
The fuel injectors have remained a matter of concern for N14 that can pose some issues. From injector failure to overfilling of injectors, oil leak, oil cooler clogging, fraying of fuel lines, misfiring due to clogged filter screen, etc are some issues that the engine might pose. Apart from that, it continues to be a real workhorse.
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