You are here: Home » Products » Engine Spare Parts » Hot Sale Diesel Engine Parts Exhaust Manifold 3973422 for Cummins QSB6.7


Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button

Hot Sale Diesel Engine Parts Exhaust Manifold 3973422 for Cummins QSB6.7

Type: Exhaust Manifold
Application: Diesel Engine Parts
OE NO.: 3973422
Condition: 100% New
  • 3973422

  • DCEC

  • QSB6.7

  • Construction Machinery

  • Diesel

  • DCEC


The function of the exhaust manifold mainly has two aspects. One is to exhaust the waste gas from the diesel engine cylinder, and the other is to prevent mutual interference and backflow of waste gas from the cylinder. The Cummins diesel engine uses an "arterial" exhaust manifold with a multi-stage turbocharged inlet pipe section (exhaust manifold outlet).

The working order of each cylinder of the 6BT diesel engine is 1-5-3-6-2-4. Connect the exhaust ducts of cylinders 1, 2 and 3 with those of cylinders 4, 5 and 6 to the two exhaust manifolds respectively, and then lead them to the two air inlets on turbine housing. In this way, the exhaust of each cylinder does not interfere with each other, which can fully utilize the pulse energy of the waste gas and prevent the exhaust pressure wave of one cylinder from flowing back to another that is sucking gas in.

Quality High Quality
Package Carton Package
Delivery time 3-7 Working Days
Warranty 6 Months
Service 24 Hours Online Service
Color Picture Showing
Size Standard
Place of Origin Hubei,China

Hubei Dongsheng Herui Import and Export Trading Co., Ltd.

We supply products mainly from DCEC CCEC XCEC FOTON factories located across China. The genuine engines we carry include ISF2.8-3.8,B3.3,4B3.9, QSB4.5-6.7, 6B5.9, ISBe, 6CT8.3, 6L8.9, ISLe, M11, ISM11, QSM11, NT855, KT19,QSX15 and KT38 models. Our product catalog covers all series of the best selling parts such as A2300, B3.3, 4B3.9, 6B5.9, 6C8.3, 6L8.9, ISBe, ISCe, ISDe, ISLe, M11,QSB, QSM, ISM, NT855, KT19, KT38, and more.





Product Category

Latest News

  • Sign up for our newsletter
  • get ready for the future
    sign up for our newsletter to get updates straight to your inbox