Cummins Main Bearing Kit AR12270 – Reliable Crankshaft Support for Heavy-Duty Engines
The Cummins Main Bearing Kit AR12270 gives strong and steady support to the crankshaft, especially in large engines like the KTA19 and QSK19. It is built to reduce wear, keep oil flow steady, and ensure smooth engine rotation. Designed to fit well with Cummins parts, Cummins genuine parts, and CCEC parts, this kit helps extend engine life and boost performance.
🔩 Specifications
- Part Number: AR12270
- Part Name: Main Bearing Kit
- Contents: Standard-size main bearings and thrust washers
- Material: Durable alloy with anti-wear coating
- Condition: 100% Brand New
- Category: Engine Bearings
- Fitment: KTA19, QSK19 engines
- Built To: Cummins OEM standards
⭐ Key Features
- Keeps crankshaft running smooth with tight oil control
- Includes thrust washers to stop unwanted movement
- Strong build for long life and high-load use
- Simple to install with no adjustments needed
- Matches all Cummins parts and CCEC parts perfectly
⚙️ Technical Insights
To begin with, this bearing kit uses factory-matched sizes for a snug, no-hassle fit.
In addition, the smooth surface cuts down friction, helping your engine run cooler and last longer.
The included thrust washers stop the crankshaft from shifting forward or back, which protects other parts.
Also, thanks to its OEM-level specs, it fits straight into your engine with no extra work.
🛠 Application Scenarios
This kit works well in many real-world cases, such as:
- Heavy-duty trucks or machines with Cummins KTA/QSK engines
- Engine rebuilds that require strong, precise Cummins genuine parts
- Workshops replacing worn bearings during routine service
- Fleet overhauls where CCEC parts are used
- Long-haul engines that need dependable crankshaft support
📦 Availability
The AR12270 main bearing kit is in stock now and ready for worldwide shipping.
To make sure it fits your engine, please send us your Engine Serial Number (ESN).
We’re here to help you find the right Cummins parts and keep your equipment running strong.
