Dress Up Your BMW's Engine Bay With MMX's Billet Expansion Tank Cap!
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BMW Z4 3.0Si N52 3.0L Engine Cooling Parts
- Bleeder Screw
- Coolant
- Coolant Flanges
- Drain Plug
- Expansion Tank
- Fan
- Freeze Plug
- Heater Core
- Hoses
- Lines
- Oil Cooler
- Performance
- Radiator
- Temperature Sensor
- Thermostat
- Tools
- Water Pump
Keep your oil temps low and your engine protected
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This product was last offered at the strikethrough price on
12-15-2025
Attaches from inlet pipe to heat exchanger
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Used for the rubber radiator mount grommet
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Replace when performing cooling service.
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934 CFM - 5.7 amps at 12.3 volts
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Measurements: 20x3
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This product was last offered at the strikethrough price on
05-07-2026
Located underneath the expansion tank
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This product was last offered at the strikethrough price on
05-07-2026
954 CFM - 5.6 amps at 12.3 volts
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Located in expansion tank mounting
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We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
05-07-2026
934 CFM - 5.7 amps at 12.3 volts
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Seals your cooling system
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Found at the flange end of the upper thermostat hose
Provides .25" stand off from radiator
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Replaces the rubber section of the water pump inlet pipe
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This product was last offered at the strikethrough price on
05-02-2026
Located in expansion tank mounting
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Attaches from inlet pipe to heat exchanger
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This product was last offered at the strikethrough price on
05-07-2026