(61131378410) - Terminal Plug Housing (black) - temp & aux fan switches (3 pole) - E30/E36, E34, E23/E32, Z3 (see details) (Genuine BMW) (1 available)

BMW part number 61131378410 (61-13-1-378-410) is a 3-pin black plastic electrical plug housing. It's primarily used for engine bay temperature switches, HVAC blower fan switches, and auxiliary cooling fan circuits. 

What It Does & Common Applications

• 3-Pole Connector Shell. It holds three female electrical terminals in a black plastic housing, securing connections to temperature switches, relays, and interior controls.
• Primary Uses. Most commonly found on the radiator auxiliary fan dual-temperature switch, HVAC blower motor speed switch, and under-hood climate control capacitors. 
• Empty Housing Only. Like BMW's other plug housings, this part number covers only the bare plastic connector body. Matching right-angle metal terminals (such as 61130007445 or 61130005197) are sold separately

Compatible Models & Years

• 3 Series (E30 & E36, 1984–1999). Fits 318i, 318is, 318ti, 323i, 323is, 325, 325e, 325es, 325i, 325is, 325iX, 328i, 328is, and M3.
• 5 Series (E34, 1989–1995). Fits 525i, 530i, 535i, 540i, and M5.
• 7 Series (E23 & E32, 1987–1994). Fits 735i, 735iL, 740i, 740iL, and 750iL.
• Z3 Roadster (E36/7, 1996–1998). Fits 1.9L 4-cylinder models.