Cummins X15 ISX15 QSX15 Dual Overhead Cam Valve Camshaft 4298626 & Injector Camshaft 4101432 Diesel Engine Parts

Product Details

Product Overview

This high-precision camshaft set is specifically designed for the heavy-duty Cummins X15, ISX15, and QSX15 diesel engines. As a critical component of the Dual Overhead Cam (DOHC) system, this package includes both the Valve Camshaft (Part No. 4298626) and the Injector Camshaft (Part No. 4101432). Manufactured to meet or exceed OEM specifications, these camshafts ensure optimal valve timing and fuel injection precision, delivering maximum power output and fuel efficiency for your fleet. We provide global shipping to major industrial markets including North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Ground Lobes: Advanced CNC grinding ensures accurate lobe profiles for consistent valve lift and injection timing, reducing engine vibration and noise.
• Superior Durability: Made from high-strength alloy steel with induction-hardened bearing journals and lobes, providing exceptional wear resistance against high spring pressures.
• DOHC Optimization: Specifically engineered for the X15/ISX/QSX platform, separating valve and injector actuation to reduce parasitic loss and improve high-RPM performance.
• Direct Fitment: 100% interchangeable with OEM components. Includes keyway and gear alignment marks for simple installation without modification.
• Stringent Quality Control: Each camshaft undergoes 100% dimensional inspection, hardness testing, and magnetic particle inspection to ensure zero defects.

Technical Specifications

OEM Cross-Reference

• Valve Camshaft: 4298626 (Cummins OEM)
• Injector Camshaft: 4101432 (Cummins OEM)
• Alternative/Interchange Numbers: 4101431, 4298625 (Superseded versions)

Compatibility

• Engine Models: Cummins X15 (Performance & Efficiency Series), ISX15 (2010-2020), QSX15 (Industrial/Marine).
• Vehicle Applications:
  • Kenworth T680, T880
  • Peterbilt 567, 579
  • Freightliner Cascadia, Coronado
  • International LT Series
  • Western Star 4700, 4900
• Note: Always verify engine serial number (ESN) to confirm compatibility with specific ECM calibrations.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast delivery to our B2B partners worldwide. Our logistics network supports:

• North America: Stock in Los Angeles, Houston, and Chicago for 2-5 day delivery.
• Europe: Express shipping to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct shipping from manufacturing hub to Singapore, Shanghai, and Dubai.
• Middle East & Africa: Dedicated routes to Jebel Ali, Jeddah, and Durban.

We offer flexible trade terms including FOB, CIF, and EXW. All shipments are fully insured and compliant with international trade regulations.

Quality Assurance

• Certifications: ISO 9001:2015 certified manufacturing facility.
• Testing: Each camshaft is tested for lobe profile accuracy (CMM), hardness (Rockwell), and surface finish (Ra).
• Warranty: 12-month or 500,000 km warranty against manufacturing defects (whichever comes first).
• Traceability: Laser-marked part numbers and batch codes for full traceability.

FAQ

Q1: Can I install only one camshaft (e.g., just the valve cam) from this set?
We strongly recommend replacing both camshafts simultaneously. The DOHC system is precisely timed. If one camshaft is worn, the other is likely near the end of its service life due to similar operating conditions. Replacing both ensures balanced wear and prevents premature failure of the new component.

Q2: What are the critical steps for installing these camshafts on an ISX15?
Installation requires specific tools including a camshaft holding fixture and a timing pin kit. Key steps include: 1) Rotating the engine to TDC on cylinder #1. 2) Installing the valve camshaft with the timing pin engaged. 3) Ensuring the injector camshaft gear backlash is within 0.10-0.30 mm. 4) Torquing bearing cap bolts to 55 Nm (41 lb-ft) in the correct sequence. We recommend consulting the Cummins service manual for full details.

Q3: How can I identify if my existing camshafts are worn and need replacement?
Common symptoms include: 1) Increased engine noise (ticking or knocking) from the valve cover area. 2) Reduced engine power or erratic idling. 3) Visible scoring or pitting on the cam lobes. 4) Failed injector response codes (e.g., 559 or 689). A visual inspection of the lobes for a “spalled” or polished appearance is the most reliable method.