Specifications: 12-V, 30-A, 5-terminal normally open (SPST) mini relay; twin 87 outputs (87/87); terminals 85/86 coil, 30 power feed; integrated metal bracket; coil ≈85 Ω.
Functions: Switches high-current loads for fuel pump power, rear window defroster, and classic starter-control circuits.
Common symptoms resolved: no-start/no-crank, fuel pump not priming, inoperative rear defroster caused by loss of switched power.
Compatibility (confirm socket & terminal map):Compatible with BMW: 2800 (1968–1974), 3.0CS/CSi/S (1971–1974), Bavaria (1972–1974), 3.0Si (1975–1976), selected 528i (1979–1981) and 530i (1975–1978).
Compatible with Volkswagen: Beetle (1967–1979) rear-defroster; Super Beetle (1971–1974) rear-defroster; Karmann Ghia (1967–1974) rear-defroster; Type 3 (1968–1973) fuel pump/rear-defroster; 412 (1974).
Compatible with Volvo: 142 (1972–1973), 144 (1972–1973) where specified.
OE & cross numbers (for reference only): 0332019150, 0 332 019 150, 0986332300, 332019150, 311906061C, 83553042101.
Install notes: Disconnect battery; verify NO twin-87 (not 87a). Match 85/86 (coil), 30 (power in), 87/87 (outputs). Seat in the fuse/relay block or mount via bracket.
Complementary items (not replacements): 171937503 4-pin multipurpose relay and 111955531 intermittent wiper relay for other circuits.
Vehicle names are used only to indicate compatibility. This is a replacement part, not affiliated with the OE brand.