Offered is our replacement for the 130-4702-03CN Cummins Onan Heat Exchanger.  

• • The OEM does not build this part with a sensor port. 
  • It comes complete with end caps, gaskets and the anode/zinc and a ground stud, as well as a new petcock for bleeding the air from the glycol loop.
  • This part is made with OEM equivalent materials and is guaranteed for fit and function.
  • The part is built with the more durable copper nickel bundle which will last longer than a copper bundle against corrosion, erosion and electrolysis.     
  • This part does not have a sensor port. 
  • OEM level quality with pricing that won't punish your wallet.     This is a popular replacement part that we commonly keep in stock.   Order with confidence. 

Some details to note:   

• If you look at the pictures in this ad.  You will find there are two models that are close to each other but with two important differences. 

  • 130-7489-03 has a sensor port and a straight Seawater fitting.   

  • 130-4702-03CN has two bunny eared fittings and does not have a sensor port.

  • These heat exchangers are primarly for 9.5KW to 11.5KW generators

• Model information below:
  • Spec Builds are a level of build which changes as the generator models age.   Spec A would be an earlier version than spec B as an example, and that earlier than spec C.    
  • See the model numbers or pictures to match up what part you have on your generator.   Trust the pictures we have on the site more than the model numbers.   We've seen examples of data from operation manuals that didn't exactly match what the customers had for parts. 

Our product is a drop in replacement for these part numbers:

• Cummins Onan 
  • 130-6547
  • 130-6547-01
  • 130-6547-02
  • 130-6547-03
  • 130-6547-03CN 
  • 130-4985-01CN
  • 130-4985-02
  • 130-4985-03
  • 130-4702-02
  • 130-4702-03

This part fits the following models (possibly more):

• MDKA
  • mdkab
  • mdkal
  • mdkav
  • mdkaw
  • mdkaz
• MDKBN
  • Click the following links to compare pictures and determine which part you have.  
  • 130-6547-02 or 130-7489-03.
• MDKB
  • mdkbk spec a-c
  • mdkbl spec a-c
  • mdkbm spec a-c
  • mdkbr spec a-c
  • mdkbs spec a-c
  • mdkbt  spec a-c
  • mdkbu spec a-c
  • For any MDKB listed above for spec D thru G order 130-7489-03. 
• MCKB
  • mckbm

We only sell this part with a copper nickel bundle.