Cummins QSB Engine for sale Online

Cummins QSB Engine For Sale Online – Power in Your Hands

If you’re looking for a fuel-efficient, high-performance, and reliable diesel engine to power your truck or equipment, look no further than the Cummins QSB engine. If you’re replacing a dead engine, upgrading equipment, or starting a new project, the Cummins QSB series provides the performance and reliability you need—and we’re here to have the correct QSB engine shipped quickly and at the right price.

We are internet-based Cummins QSB engine sales experts, offering rebuilt, remanufactured, and low-hour used engines to meet your specific needs. Each engine we provide is inspected, tested, and backed by knowledgeable customer service so you can buy with assurance.

What Is the Cummins QSB Engine?

Cummins QSB (Quantum System B) series is a series of Cummins’ premium mid-range industrial, agricultural, marine, and construction diesel engines. QSB engines are compact, with acceptable combustion efficiency, and high power output and are used in excavators and loaders, tractors, and power generation sets, among others.

“QSB” stands for:

Q – Quantum series (with electronic engine controls)

S – Mid-range displacement

B – Backed by the successful B-Series platform

Available in 4-cylinder and 6-cylinder applications, the QSB series includes:

QSB3.3 – 3.3L 4-cylinder

QSB4.5 – 4.5L 4-cylinder

QSB5.9 – 5.9L 6-cylinder

QSB6.7 – 6.7L 6-cylinder

Cummins QSB engines are compliant with Tier 3, Tier 4 Interim, and Tier 4 Final emissions regulations, making them suitable for worldwide applications.

Why a Cummins QSB Engine?

Cummins QSB series is engineered for power, fuel efficiency, and versatility. These are the reasons why thousands of equipment owners and operators around the world are counting on QSB engines:

1. Proven-and-Proven Performance

QSB engines deliver 80 to 275 horsepower (model specific) and high torque at low RPM, making them ideal to do tough work in tough conditions.

2. Electronic Controls

All QSB engines feature full-authority ECMs (Electronic Control Modules) that offer peak performance, fuel efficiency, and sophisticated diagnostics.

3. Compact Design

QSB engines are light and compact in their power class and therefore perfect for equipment where compactness is desired but high performance remains a requirement.

4. Emissions Compliance

QSB series models meet or exceed emissions standards such as:

Tier 3 (EPA)

Stage IIIA (EU)

Tier 4 Interim and Final

Stage IV (EU)

This makes them suitable for application in both regulated and unregulated markets.

5. Industry Versatility

QSB engines drive a range of equipment, including:

• Excavators
• Wheel loaders
• Skid steers
• Tractors
• Harvesters
• Drilling rigs
• Marine boats
• Industrial pumps and compressors

Cummins QSB Engine Models and Specifications

Below is a summary overview of our top-selling QSB engine models we offer online:

✅ Cummins QSB3.3
Displacement: 3.3L
Configuration: 4-cylinder, inline
Power Output: 60–99 HP
Applications: Small compact equipment, mini-excavators, compact tractors
✅ Cummins QSB4.5
Displacement: 4.5L
Configuration: 4-cylinder, inline
Power Output: 110–160 HP

Applications: Loaders, forestry equipment, ag equipment

✅ Cummins QSB5.9
Displacement: 5.9L

Configuration: 6-cylinder, inline

Power Output: 150–230 HP

Applications: Construction equipment, gen sets, mining

✅ Cummins QSB6.7
Displacement: 6.7L

Configuration: 6-cylinder, inline

Power Output: 160–275 HP

Applications: Heavy-duty equipment, agriculture, marine

Need a Cummins QSB Engine for Sale Online? You’ve Come to the Right Place.
Our online engine inventory features an excellent selection of Cummins QSB engines that are:

✅ Professionally inspected

✅ Compression tested and diagnosed

✅ Ready to ship immediately

✅ Back to buy with limited warranties (on most units)

We carry rebuilt, remanufactured, and clean low-hour used Cummins QSB engines so you can select what is best for your budget and operating needs.

What We Offer:

• Tier 3 or Tier 4 compliant QSB engines
• We deliver factory-tested performance and emissions
• We provide shipping convenience in the U.S. and worldwide
• We have comprehensive customer support before and after sale

What is the Difference Between Rebuilt, Used, and Remanufactured QSB Engines?

When purchasing Cummins QSB engines online, it is in your interest to know the various engine sale conditions:

Rebuilt QSB Engines

• Rebuilt and reassembled with new or remanufactured components
• Examined and tested for operation
• Good price/reliability trade

Remanufactured QSB Engines

• Remanufactured to OEM specifications in its entirety
• New pistons, bearings, gaskets, injectors, etc.
• Extended warranty typically provided
• Best for mission-critical or long-term use

Used QSB Engines (Low-Hour Take-Outs)

• Engines removed from low-run equipment
• Carefully inspected and tested
• Low price, fast shipping

No matter what kind you’re looking for, all of the engines that we have posted on our site are high quality, long lasting, and operate well.

Common Applications for Cummins QSB Engines

The QSB line engine is used by world-class piece of equipment builders. Some equipment and systems detailed below are only a few which use the QSB:

• Caterpillar 416E Backhoes (QSB4.5)
• Bobcat excavators
• Case IH tractors
• Hitachi and Komatsu Excavators (QSB6.7)
• John Deere Skidders
• JLG Aerial Lifts
• Terex Cranes
• Volvo Wheel Loaders
• Doosan Heavy Equipment
• Marine propulsion and generator sets

If you operate equipment with a Cummins QSB engine, we can help you locate an acceptable substitute that’s tested, installation-ready, and available today.

How to Purchase a Cummins QSB Engine Online

Online purchasing of diesel engines is now convenient. The following are steps to follow:

1. Contact Our Team
Let us know your application, engine model, and any specific requirements. If you’re unsure of the engine variant, just share your machine’s make/model and we’ll help.

2. Get a Quote
We’ll provide a competitive price based on your preferred engine type (rebuilt, reman, used) and location.

3. Confirm and Pay
We accept major payment methods and provide all necessary documentation, including spec sheets and warranty details.

4. Fast Shipping
We’ll have your QSB engine delivered to your garage or shop—fully crated and insured.

5. Post-Sale Support
Installation or diagnostic questions? Our trained support staff is at your disposal.

Cummins QSB Engine Prices – What You Can Expect

QSB engine prices vary based on their condition, model, and configuration. Here’s a rough estimate:

Need a quote on your particular application? Call us straight — we’ll locate the proper engine at the proper price.

Why Buy Your Cummins QSB Engine from Us?

We’re not an engine warehouse—we’re your one-stop shop for diesel engine replacement. Here’s why:

✅ Quality Assurance
Our experts inspect and test every engine. We guarantee the quality of each engine sent.

✅ Quick, Guaranteed Shipping
Our shipping center ensures secure packaging and fast shipping across the U.S. or around the world.

✅ Proven Customer Support
We are here to support you to the right QSB engine and get your installation successfully completed.

✅ Actual Inventory, Actual Engines
When you see an engine on our website, it is in stock and ready to be shipped. No wait, no surprise.

Frequently Asked Questions (FAQs)

Do you ship Cummins QSB engines internationally?
Yes! We export all over the world with trustworthy freight carriers. We handle customs documents and can quote CIF or FOB.

Do your QSB engines go through run-testing before shipping out?
Yes. Every engine goes through run-testing (where possible), compression-testing, and codeFAULT-checked via ECM prior to shipping.

Do you help find me the proper QSB engine for my equipment?
Yes, just provide us your current model engine number or equipment details and we’ll match it exactly.

Are your QSB engines guaranteed?
Rebuilt and remanufactured QSB engines often have a limited guarantee. Used engines can also be shipped with startup guarantees.

Buy Your Cummins QSB Engine Online Today

When you’re ready to buy a Cummins QSB engine online, you’ve landed on the right website. We carry a stock of QSB3.3, QSB4.5, QSB5.9, and QSB6.7 engines—shipped ready with support every step of the way.

Call us 
Reduce downtime or waiting. Our specialists can procure a reliable Cummins QSB engine quickly, at a reasonable cost. Let us find you the power you need to get back to work.