Betamarine, (800) 682-8003, www.betamarinenc.com
Caterpillar, (800) 321-7332, www.Cat-Marine.com
Cummins, (800) 343-7357, www.cummins.com
Lister-Petter, (913) 764-3512, www.lister-petter.com
Norpro, (978) 281-7876, www.northeastpower.com
Perkins Sabre, (904) 278-9919, www.perkins-sabre.com
Phasor Marine, (954) 979-5899, www.phasormarine.com
SABB, +47 55 34 88 00, www.sabb.no
Vetus den Ouden, (410) 712-0740, www.vetus.com
Volvo Penta, (757) 436-2800, www.penta.volvo.se
Westerbeke/Universal, (508) 823-7677, www.westerbeke.com
Yanmar, (800) 667-3153, www.yanmar.com
