Buy Connecting Rods For Cummins Engines
Connecting rods play an important role in Cummins Engines. These components are an integral part of the engine and are responsible for transferring the power generated by the piston to the crankshaft. Without them, the engine would not be able to turn and could not generate power.
Connecting rods are typically made from steel, alloy or aluminum and are designed to withstand the extreme heat and pressure of the combustion process. The connecting rods are designed to be lightweight yet strong enough to handle the load of the piston. The connecting rods are connected to the piston at the big end, and the crankshaft at the small end.
Getting The Right Connecting Rods For Your Cummins Engine
Cummins engines use a floating pin design, which allows the connecting rod to be self-aligning. This design helps to reduce vibration, which can be damaging to the engine. The floating pin design also helps to reduce friction, which can reduce engine wear and tear.
Connecting rods are subjected to a great deal of stress during the combustion process, and it is important that they are properly maintained. Cummins recommends using a connecting rod bearing kit to ensure the proper functioning of the connecting rods. The bearing helps to reduce friction and helps to improve the life of the connecting rods.
It is important to inspect the connecting rods regularly, and to replace them if they show signs of wear and tear. Connecting rods should be replaced if the bearing is worn or cracked, the washer is loose, or the locking nut is damaged.
Cummins engines are designed to provide exceptional performance, and properly functioning connecting rods are essential for optimal performance. By maintaining the connecting rods and replacing them when necessary, you can ensure that your engine is running at its best.
Why Buy Your Cummins Connecting Rods From Diesel Pro Power

When it comes to maintaining or rebuilding a Cummins engine, choosing the right supplier is just as important as selecting the right components. Diesel Pro Power has established itself as a trusted global source for diesel engine parts, serving more than 40,000 customers across 180 countries. Customers rely on Diesel Pro not just for parts, but for reliability, experience, and unmatched service.
A Trusted Leader With Worldwide Reach
Diesel Pro Power’s international presence ensures fast order processing and dependable delivery—no matter where your equipment is operating.
What This Means for You
-
Shipping to 180 countries with proven logistical expertise
-
Same-day order processing on most in-stock items
-
Consistent fulfillment accuracy built on decades of experience
Exceptional Customer Support From Real Experts
Diesel Pro Power believes in direct, knowledgeable service rather than automated systems. Whether you’re verifying compatibility or confirming details before placing an order, support is always one call away.
Service Advantages
-
Live phone assistance from diesel-engine specialists
-
Clear, reliable guidance tailored to Cummins applications
-
Proactive order verification to prevent delays or downtime
Fast, Simple, and Efficient Online Ordering
Diesel Pro Power’s online experience is built to save time and reduce complexity. Customers can easily locate the correct components without sorting through confusing diagrams or outdated catalogs.
Benefits of the Online Platform
-
Clean, intuitive navigation
-
Organized engine-specific categories
-
Real-time inventory visibility
A Proven Partner You Can Rely On
With a strong reputation for accuracy, customer satisfaction, and global dependability, Diesel Pro Power provides more than parts—it provides confidence. Choosing Diesel Pro means choosing a long-term partner committed to keeping your equipment running.
Compatible Cummins Engine Models
At Diesel Pro, we carry connecting rods for a wide range of Cummins engine series. Below are some of the most requested models we support:
B Series
- Cummins 4BT / 6BT / 6BTA – Widely used in marine, industrial, and vehicle applications. Known for rugged simplicity.
- Common Applications: Marine fishing boats, small tugboats, gensets, off-road machinery.
- Connecting Rod & Related Components for Cummins 4BT
- Connecting Rod & Related Components for Cummins 6BT
- Connecting Rod & Related Components for Cummins 6BTA
Bearing Set for Cummins B series engines
Connecting Rod Bushing 4BT, 6BT and 6BTA
Connecting Rod Cap Bolt for Cummins B series engines
C Series
- Cummins 6C / 6CT / 6CTA 8.3 – Larger displacement, found in commercial marine engines and larger machinery.
- Common Applications: High-horsepower marine vessels, heavy-duty construction equipment.
- Connecting Rod & Related Components for Cummins 6C
- Connecting Rod & Related Components for Cummins 6CT
- Connecting Rod & Related Components for Cummins 6CTA
Bearing Set for Cummins C series engines
Connecting Rod Bushing for Cummins C series
Connecting rod for Cummins C series
QSM Series
- Cummins QSM11 – An electronically controlled powerhouse in offshore, oilfield, and high-performance marine applications.
- Common Applications: Workboats, dredges, power generators, and commercial fishing vessels.
- Connecting Rod & Related Components for Cummins QSM11
Bearing Set for Cummins QSM11 engine
K Series
- Cummins KTA19 / KTA38 / KTA50 – High-horsepower engines used in major marine propulsion systems and mining.
- Common Applications: Tugs, barges, cargo ships, mining excavators.
- Connecting Rod & Related Components for Cummins KTA19
- Connecting Rod & Related Components for Cummins KTA38
- Connecting Rod & Related Components for Cummins KTA50
Bearing Set for Cummins K series engines
Connecting Rod Bushing for Cummins K series
Connecting Rod Bolt for Cummins K series
ISX / QSX Series
- Cummins ISX / QSX15 – Found in larger land-based and power generation systems.
- Common Applications: Commercial trucks, gensets, oil & gas power units.
Don’t see your model listed? Contact us—our inventory continues to grow, and we specialize in sourcing hard-to-find Cummins connecting rods for legacy and high-output engine models.
- Connecting Rod & Related Components for Cummins ISX Single Cam
- Connecting Rod & Related Components for Cummins ISX Dual Cam
- Connecting Rod & Related Components for Cummins QSX
Bearing Set for Cummins ISX and QSX engines
Connecting Rod Bolt for Cummins ISX and QSX engines



Free US Calls: 1-888-433-4735
International: 305-545-5588

