Linked parts marked with a can be purchased directly from the DAVCO Web Store. Links will take you directly to the service part on the DAVCO Web Store. All other items can be purchased from OEM distributors.

Heater Part Number and Photo	Electrical	Heater threads	Approximate Harness Length	Unit Used On	OEM	Connector	End
103504	24V-195W	1/2"-14 NPTF	20"	Fuel Pro 482	Vanhool (Replaces 103185)	Metri Pack
103214	12V-195W	1/2"-14 NPTF	10.5"	Fuel Pro 382	Hino	Yazaki
103525	12V-195W	7/8-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 245	DAVCO, Navistar, Paccar	Weather Pack
103526	12V-195W	7/8-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 243	DAVCO, FTL	Metri Pack
103527	12V-195W	7/8"-14 UNF	30.5"	Diesel Pro 243	Hino	Yazaki
103528	12V-195W	1/2"-14 NPTF	20"	Fuel Pro 382, 385, 386, 483, 485, 487, 488	Volvo, FTL	Metri Pack
103529	12V-195W	1/2"-14 NPTF	20"	Fuel Pro 382, Fuel Pro 483, Fuel Pro 488	DAVCO, Navistar, Paccar, Mack	Weather Pack
103530	12V-195W	1/2"-14 NPTF	20"	Fuel Pro 382, Fuel Pro 483, Fuel Pro 488	DAVCO, Mack, FTL	MALE Metri Pack
103505	24V-195W	1/2"-14 NPTF	19"	Fuel Pro 382, Fuel Pro 483, Fuel Pro 487	DAVCO, Bus (Replaces 103539)	Weather Pack
103540	24V-195W	7/8"-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 245	DAVCO	Weather Pack
103552	12V-195W	7/8"-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 245	Reefer Kits	MALE Metri Pack
103574	12V-195W	1/2"-14 NPTF	19"	Fuel Pro 382	Mack	Weather Pack
103593	12V-155W	7/8"-14 UNF	17"	Diesel Pro 243	Carrier	MALE Metri Pack
103594	12V-155W	1/2"-14 NPTF	20"	Fuel Pro 382, Fuel Pro 482, Fuel Pro 487	Freightliner	Metri Pack
103595	12V-155W	7/8"-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 245	Freightliner	Metri Pack
103596	12V-155W	7/8"-14 UNF	7.5"	Diesel Pro 243, Diesel Pro 245	Carrier, FTL	MALE Metri Pack