Mack Boring & Parts Company

Yanmar engines and Aquadrive anti-vibration systems are a perfect pair. View photos of Yanmar/Aquadrive applications

World Class Service

Service after the sale is what has separated Mack Boring from the competition for over 85 years.
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Discontinued Historical/Discontinued Sailboat Models

Model	Kilowatts (KW)	Horsepower	RPM	Weight (kg)	Weight (lb)
1GML	5	7	3600	67	148
YSB8	5	7	3200	104	229
YSM8	5	7	3200	102	225
YSB12	7	10	3000	134	295
YSM12	7	10	3000	130	287
2GML	10	13	3600	97	214
2QM20		20	2600	218	480
2QM20H		20	2600	190	419
3GML	15	20	3600	122	269
3HML	19	26	3600	147	324
3QM30		30	2600	268	590
3QM30H		30	2600	260	573
3JH4-CE Saildrive	29	40	3000	212	467
3JH4-E	29	40	3000	173	381
4JH4AE	40	54	3000	201	443
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