WATER PUMP ENGINE COOLING FITS: ISUZU TROOPER/BIGHORN I 2.8 TD /2.8 TD.ISUZU BIGHORN I 2.8 TD /2.8 TD.ISUZU FASTER 2.5. I. Water Pump Impeller Material. Water Pump Type. We will get back to you as soon as possible in 1-2 working hours and in 24 hours during the weekend.