Muffler on my Komatsu PC45R-8 1998 !!!

This topic contains 1 replies and was last updated by trainbuff57x 8 years 11 months ago
January 28th, 2013 2:53pm
Hey All !!!

New here !!

Looking for some insight !!! Does anyone know if I can change the muffler on my 1998 Komatsu PC45R-8 while it is still in the machine !! (without removing the engine) It has a 4 cyc. Yannmar engine !!

Also a good source for aftermarket (cheaper )parts for my machine !!!

All tips will be Greatly appreciated !!


Mike M.
June 28th, 2013 7:23pm
Hi Mike,

A muffler is just a muffler. Every muffler is good if you must keep in mind certain aspects:

-proper fitting on exhaust manifold

-same engine displacement, RPM.

-turbo Y/N?

-proper mounting under the hood

-same length of pipes

Results: different sound...

If you want to be very precise, measure the back pressure on exhaust before and after muffler change. Thermal regime of operation can influence the fuel consumption

Bay the way, why you want to change the muffler?

Good luck,


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