Cummins Connecting Rod 3078330 | Genuine Engine Component for N14 & NT Series
Ensure the structural integrity and reliable performance of your Cummins diesel engine with the Cummins Connecting Rod 3078330. This precision-engineered component connects the piston to the crankshaft, transmitting the reciprocating motion of the piston into rotational motion to drive your vehicle. It is a critical part of any engine rebuild or overhaul, designed to withstand the extreme forces generated during combustion .
3078330
Cummins Connecting Rod 3078330 – Product Overview
The 3078330 is a high-quality connecting rod manufactured to meet or exceed original equipment specifications. It is specifically designed for the legendary Cummins N14, NTA14, and related heavy-duty engine platforms.
Compatible Engine Platforms
The connecting rod 3078330 is compatible with the following Cummins engine models and CPLs (Control Parts Lists) :
| Engine Series | Specific Models / CPLs | Applications |
|---|---|---|
| N14 | CPLs: 1391, 1393, 1395, 1405, 1532, 1573, 1574, 1580, 1652, 1807, 1844, 2027, 2390 | Heavy-duty trucks (Kenworth, Peterbilt, Freightliner) |
| N14 (STC) | CPLs: 2026, 2261, 2398, 2591 | Trucking, industrial |
| NTA14-C (STC) | CPLs: 2033, 2038 | Heavy haulage |
| NTA14-E | CPLs: 2389, 2391, 2590, 2592 | Power generation, marine |
| NT855 | NTA855, NTC855 | Construction, mining, industrial |
| KTA19, KTA38, KTA50 | Various CPLs | Marine propulsion, generator sets, mining |
These engine platforms are widely used in:
- Heavy-Duty Trucks: Kenworth T800, Peterbilt 379, Freightliner Classic
- Construction Equipment: Excavators, loaders, bulldozers
- Marine: Commercial vessels, workboats
- Power Generation: Standby and prime power generators
- Mining: Haul trucks, drilling equipment
Technical Features & Benefits
The Cummins connecting rod 3078330 is engineered with advanced features for reliable operation:
✅ Precision Forging: High-strength material withstands extreme combustion pressures
✅ Cracked-Cap Design: Ensures perfect cap alignment and superior strength at the big end
✅ Precision Bored: Factory-machined to exact tolerances for proper bearing fit
✅ Weight-Matched: Balanced for smooth engine operation and reduced vibration
✅ Direct Replacement: OE-spec component for seamless installation
Why Choose a Premium Connecting Rod?
The connecting rod is one of the most stressed components in any diesel engine. A quality rod like the 3078330 ensures:
- Engine Integrity: Prevents catastrophic failure due to rod fracture or bending
- Power Transfer: Efficiently transmits combustion force to the crankshaft
- Durability: Withstands millions of high-load cycles over the engine’s life
- Reliability: Critical for achieving million-mile engine life in N14 platforms
Remanufactured & ReCon Options
The 3078330 is also available as a genuine Cummins ReCon® remanufactured part (3078330RX). ReCon parts are factory-remanufactured to original specifications and come with a 12-month warranty, offering a cost-effective alternative without sacrificing quality .
Complete Range of Cummins Engine Components
At Multistar Parts Co., Ltd., we supply a comprehensive selection of Cummins engine parts for N14, NT855, and KTA series engines:
Connecting Rods & Rotating Components:
- 3078330 – Connecting rod for N14/NTA14
- 3078330RX – ReCon remanufactured rod
- 3070449 – Related connecting rod number
- 3078328 – Casting number reference
- Rod bearings and bolts
Complete Rebuild Kits:
- Inframe overhaul kits with gaskets
- Complete engine rebuild kits
- Cylinder kits (liners, pistons, rings)
Additional Components:
- Crankshafts and camshafts
- Cylinder heads and gaskets
- Fuel injection systems
- Turbochargers
Why Choose Multistar Parts Co., Ltd.?
As a specialized supplier of Cummins engine parts from China, we offer:
- ✅ Premium Quality: Genuine-grade and OEM-spec components
- ✅ Extensive Inventory: Comprehensive stock of 3078330 and related parts
- ✅ Global Logistics: Worldwide shipping to minimize downtime
- ✅ Competitive Pricing: Wholesale rates for fleets, workshops, and distributors
- ✅ Technical Support: Expert assistance for parts identification and CPL verification
- ✅ Quality Assurance: Components tested for durability and performance
Installation Tips for Connecting Rods
When replacing the connecting rod 3078330 on your Cummins engine:
- Verify CPL Number: Ensure your engine’s Control Parts List matches compatible CPLs
- Check Rod Bolts: Always use new rod bolts and torque to specification
- Measure Big End Bore: Verify proper dimensions for bearing clearance
- Lubricate During Assembly: Use clean engine oil on bearings and journals
- Follow Torque Specs: Adhere to factory torque sequences (typically angle-torque method)
- Verify Core Return: If using remanufactured rod, follow core return policy within 45 days
Keep Your Cummins Engine Running Strong
The Cummins N14, NT855, and KTA series engines are renowned for their durability and longevity. Using a quality connecting rod 3078330 ensures your engine delivers optimal power, reliability, and service life—whether on the highway, at the job site, or in continuous power generation.
Contact Multistar Parts Co., Ltd. today to order the Cummins 3078330 Connecting Rod or inquire about our full range of Cummins engine parts. Whether you need a single connecting rod for repair or wholesale quantities for fleet maintenance, we deliver the quality, reliability, and support your operations demand.
Trust Multistar Parts Co., Ltd. as your dedicated partner for genuine-quality Cummins engine components.
About Multistar Parts
Multistar Parts Cp.,Ltd is your reliable truck parts supplier for OEM truck parts and aftermarket truck parts solutions! We save your purchase time and give a best price!