This main bearing pair is designed for the Cummins QSB5.9 engine, commonly used in excavators and other construction machinery. It is an aftermarket new replacement part, manufactured to meet the dimensional and performance requirements of the original component.
This bearing pair is suitable for Cummins QSB5.9 engines installed in excavators and other equipment. It provides reliable support for the crankshaft, helping maintain proper oil clearance and smooth rotation under load.
In addition to this main bearing pair, we supply a wide range of engine spare parts for the QSB5.9 and other models, including:
Hangzhou XC Machinery Co., Ltd. is a parts wholesaler based in China, serving the construction equipment industry for over 8 years. We supply excavator hydraulic pumps and parts, engine parts, undercarriage parts, electric parts, seal kits, filters, final drives and gear parts, hydraulic breakers, rock buckets, and scanner diagnosers.
We serve customers worldwide, including the US, Canada, Turkey, Italy, Brazil, Colombia, South Africa, UAE, and India. Our product range covers OEM and genuine parts for South Korean brands such as Daewoo, Doosan, Hyundai, Volvo, and Samsung; Japanese brands like Komatsu, Hitachi, Kobelco, Kato, Isuzu, and Mitsubishi; and Chinese brands such as SDLG, Sany, Zoomlion, and Liugong.
WhatsApp/Phone: +86 136 4581 9133
Skype: robinwanguuu@hotmail.com
Email: Ricardo@xcgparts.com
WeChat: welchanparts_luke
Website: www.xcgparts.com
The Cummins QSB5.9 Main Bearing Pair 3929021 is an aftermarket new engine spare part designed for the Cummins QSB5.9 engine. It supports the crankshaft and helps maintain proper oil clearance and smooth rotation under load. This bearing pair is commonly used in excavators and other construction machinery. It is manufactured to meet the dimensional and performance requirements of the original component.
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