This is a new gasket change for the MCV115. If you use the older gasket, it must be used on the MCV112, the MDC control and MCV111 EDC control. If you do not use the correct gasket then there will be uncontrolled displacement in the pump.

It will affect these models

Frame size – 30/42/55cc Control gaskets for EDC MCV111 – 8800520 Control gasket for HDC MCV112- 880520 MCV115 – K11419 Control gasket for MDC – 8800520

Frame size – 75/100/130cc Control gasket for EDC MCV111 – 8800521 Control gasket for HDC MCV112 – 8800521 MCV115 – K11420 Control gasket for MDC – 880521

If you need further info on these models call us at 800-361-0068 or email us at sales@htsrepair.com