7 models serves most engine applications Easy installation Proven cold weather performance Government approved - #98-752 Please contact us if you would like confirmation on the correct size for your application or if you have any other questions. Dealer Inquiries Welcome   Product Description Dimensions Oil Pan Capacity Price Quantity Model 4.5 50 WATTS Volts: 110 1.25 in. x 3.5 in. 1-2 U.S. Qts.(.95 - 1.9 Liters) $39.95 Model 9.0 125 WATTS Volts: 120 240 3 in. round diameter 3-6 U.S. Qts.(2.85 - 5.7 Liters) $49.95 Model 9.1 125 WATTS Volts: 120 240 1.5 in. x 6.0 in. 3-6 U.S. Qts.(2.85 - 5.7 Liters) $49.95 Model 16 250 WATTS Volts: 120 240 3.75 in. x 4.25 in. 5-13 U.S. Qts.(4.7 - 12.3 Liters) $59.95 Model 40 500 WATTS Volts: 120 240 5 in. x 7 in. 13 - 27 U.S. Qts.(12.3 - 25.5 Liters) $79.95 Model 80 1000 WATTS Volts: 120 240 6 in. x 11.75 in. 26 -48 U.S. Qts.(24.6 - 45.4 Liters) $119.95 Model IPH - 500 WATTS 110 Volts Models: Caterpillar Model 3406 Cummins Big Cam Detroit 60 series In-Pan-Heater10.75 in. x .75 dia. 26 - 48 U.S. Qts.(24.6 - 45.4 Liters) $119.95 Battery Heater Volts: 110 5 in. x 7 in. N/A $29.95 Battery Heater Volts: 240 5.5 in. x 8.5 in. N/A $49.95 Fuel Filter Heater (12V) Watts: 50 100 4 in. x 12 in. N/A $49.95 United States Shipping UPS $10.00 International Shipping USPS $30.00