Genuine BMW M30 Refurbished Thermostat Housing 11531710959

Genuine BMW thermostat housing for M30 engines, manufactured around 1985/1986. This aluminum thermostat housing has been refurbished and comes with two installed temperature sensors.

Suitable as a replacement for several earlier versions of the M30 thermostat housing. Because sensors, connections, and production periods may vary, we always recommend comparing the part numbers and electrical connectors before ordering.

Details

• Part: Thermostat housing
• Engine family: BMW M30 inline-six
• Material: Aluminum
• Approximate casting period: 1985/1986
• Condition: Refurbished
• Casting number: 1 250 351.9
• Included: 2 installed temperature sensors
• Supplied exactly as shown in the photos

BMW Thermostat Housing Part Numbers

The number 1 250 351.9 cast into the housing is a casting number.

Associated BMW part numbers and supersession chain:

• 11531250352 — 11 53 1 250 352
• 11531271475 — 11 53 1 271 475
• 11531272870 — 11 53 1 272 870
• 11531278187 — 11 53 1 278 187
• 11531710959 — 11 53 1 710 959 — final superseding version

According to the BMW parts catalog, part number 11531710959 supersedes the earlier versions listed above.

Installed Temperature Sensors

• 13621357414 — 13 62 1 357 414
  Coolant temperature sensor for the engine management system
  Specification: 2,500 ohms at 20°C
• 13621362599 - Most likely!
  
  

The functions and production periods of these sensors are listed accordingly in the BMW parts catalog.

Vehicle Compatibility

Depending on the production date, engine version, and sensor connections, this part is suitable for various classic BMW models equipped with an M30 engine, including:

• BMW E3: 2500, 2800, 3.0 S, 3.0 Si and 3.3 L/Li
• BMW E9: 2500 CS, 2800 CS, 3.0 CS, 3.0 CSi and 3.0 CSL
• BMW E12: 525, 528, 528i and 530i
• BMW E23: 728, 728i, 730, 732i, 733i and 735i
• BMW E24: 628 CSi, 630 CS, 633 CSi and 635 CSi
• BMW E28: 525i, 528i, 533i and 535i
• BMW E32: 730i and 735i with M30 engine
• BMW E34: 530i and 535i with M30 engine

Condition

Genuine used BMW component that has been refurbished and refinished. Minor signs of age or previous installation may still be present.

Important Notes

• Compare the thermostat housing, hose connections, and electrical connectors with your original part before ordering
• The two installed sensors are included as shown
• Verify that the installed sensors are suitable for your vehicle’s production date and wiring harness
• Some applications may require unused ports to be sealed with the correct BMW plugs
• The thermostat, cover, O-ring, mounting gasket, and hardware are only included when shown in the product photos
• Genuine BMW component, ideal for an OEM-correct restoration or repair.