Gates 34788 Engine Coolant Thermostat
OE Quality 60-Day Returns
Gates
 Integrated Housing Thermostat

Gates 34788 Engine Coolant Thermostat

Brand Gates 34788
Outlet Outside Diameter 1.023
Outlet Outside Diameter 1.496
Outlet Outside Diameter 1.515
Bolt Hole Quantity 2
Type Integrated housing thermostat
Jiggle Pin Weep Hole No
Start to Open Temperature 108
Start to Open Temperature 226
Electric Yes
9841 0
Check Valve No
Electric Yes
Jiggle Pin/Check Valve No
Number of Bolt Holes 2
Number of Jiggle Pins/Check Valves 0
Number of Seals 0
OE Comparison Rating Oe exact
OE Exact Yes
Outlet Outside Diameter 1 (in) 1.515
Outlet Outside Diameter 2 (in) 1.496
Outlet Outside Diameter 3 (in) 1.023
Temperature (C) 108
Product line Integrated Housing Thermostat
Fits BMW · 74 vehicles

OE-exact replacement. Built as an integrated thermostat housing for direct aftermarket service.

Electronic control. Uses an electric thermostat design for precise coolant temperature regulation.

226 degree opening. Matches the specified start-to-open temperature for listed applications.

Cross-references Dorman - OE Solutions 902-5135, Febi-Bilstein 34788 and Four Seasons 85991 for the same application. See all 14.

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Integrated Thermostat Housing

Gates part 34788 is an OE-exact integrated housing thermostat built for BMW cooling systems that use an electronically controlled thermostat assembly. It helps maintain accurate coolant temperature control for efficient engine operation and consistent thermal management.

  • OE-exact integrated housing thermostat for direct replacement use.
  • Electronic thermostat design with a 226 degree start-to-open temperature.
  • Two-bolt housing layout with multiple outlet diameters for application-specific fitment.
  • Gates Integrated Housing Thermostat line focuses on aftermarket thermostat solutions for modern cooling systems.

Fitment Details

Compatible with BMW applications including 2012-2016 328i, 2012-2016 528i, 2012-2016 Z4, 2012-2015 X1, 2013-2018 320i, 2013-2018 320i xDrive, 2013-2018 X3, 2013-2016 328i xDrive, 2014-2016 228i, 2014-2016 328i GT xDrive, 2014-2016 428i, 2014-2016 428i xDrive, 2015-2016 228i xDrive, 2015-2016 428i Gran Coupe, 2015-2016 428i xDrive Gran Coupe, 2015-2018 X4, 2016-2018 X5, 2018 120i, and 2018 220i. Fits 2012-2016 BMW 328i, 2013-2018 BMW X3, and 2016-2018 BMW X5, integrated housing thermostat applications.

This part cross-references Dorman - OE Solutions 902-5135 and Motorad 822-226 for the same application.

Installation Notes

Verify the thermostat housing style, electrical connector, and outlet dimensions before installation. Confirm the vehicle uses the 226 degree integrated housing thermostat configuration listed in the fitment notes. Replace coolant according to the vehicle service procedure and bleed the cooling system after installation.

Quality Assurance

Gates positions this integrated thermostat housing as an OE-exact aftermarket alternative for modern cooling systems, with engineering focused on accurate temperature regulation and control.

Related reading

This part fits 74 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypeNotes
2018BMW120i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMW220i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMWX42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2018BMWX52.0LL4ELECTRIC/GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMWX32.0LL4DIESEL226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMWX42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2017BMWX52.0LL4ELECTRIC/GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW228i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW228i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW328i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW328i GT xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW328i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW428i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW428i Gran Coupe2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW428i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW428i xDrive Gran Coupe2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW528i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMW528i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMWX42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMWX52.0LL4ELECTRIC/GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2016BMWZ42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW228i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW228i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW328i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW328i GT xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW328i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW428i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW428i Gran Coupe2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW428i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW428i xDrive Gran Coupe2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW528i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMW528i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMWX12.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMWX42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2015BMWZ42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW228i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW328i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW328i GT xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW328i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW428i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW428i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW528i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMW528i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMWX12.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2014BMWZ42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW320i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW320i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW328i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW328i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW528i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMW528i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMWX12.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMWX32.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2013BMWZ42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2012BMW328i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2012BMW528i2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2012BMW528i xDrive2.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2012BMWX12.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
2012BMWZ42.0LL4GAS226 Degree; OE Temperature; Integrated Housing Thermostat
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 902-5135Febi-Bilstein — 34788Four Seasons — 85991Genuine — 11537633476Motorad — 822-226NGK — 49618115375882571153763347711538635689115386365941153863659511538648791HT226-228TM25108