DMG Part Number - GWP201. • Vitesse 2000, 2500. Water Pump assembly suitable for the following Triumph models ROVER V8 WATER PUMP SHORT NOSE P5B P6B 3500 TRIUMPH TR8 MORGAN MGB V8 - GWP310. MG MIDGET, AUSTIN HEALEY SPRITE 948cc 1098cc WATER PUMP & GASKET GWP132.