2019 BMW Z4 Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

13 Coolant / Antifreeze parts for the 2019 BMW Z4 come from 5 brands — PRESTONE, PEAK, VALVOLINE and 2 other brands. The "Popular" part is FVP MV5050GAL. 10 parts fit every engine; the other 3 are engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 4 options from FVP, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE and AISIN supply 3 parts: built to original-equipment specification. A representative part number is AISIN ACE008.

This table covers the bleeders used to purge air from the coolant circuit. Read more

DORMAN supplies both parts for the 2019 BMW Z4.

This group includes DORMAN 902404 and DORMAN 902404HP.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2019 BMW Z4 — ELRING 283410.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

6 Coolant Reservoir parts are listed for the 2019 BMW Z4, from TECHPRO and MAHLE / CLEVITE. TECHPRO BM3014121 carries the "Popular" badge. 3 parts fit every engine; the other 3 are engine-specific.

This group includes TECHPRO BM3014121, MAHLE / CLEVITE CRT299000S and MAHLE / CLEVITE CRT254000S and the remaining parts above.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

4 Coolant Reservoir Cap parts are listed for the 2019 BMW Z4, from CALORSTAT, MOTORAD, REIN and 1 other brand.

Part numbers include CALORSTAT RC0084, MOTORAD T64 and REIN CPE0078, among others listed above.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

9 Radiator parts for the 2019 BMW Z4 come from 6 brands — NISSENS, UAC, ULTRA-POWER and 3 other brands. The "Popular" part is ULTRA-POWER 13799. 6 parts fit every engine; the other 3 are engine-specific.

The Economy section: 2 options from ULTRA-POWER and GPD. ULTRA-POWER 13799 is listed in this group.

Standard Replacement: 7 parts, from NISSENS, UAC, AGILITY and 1 other brand. A representative part number is NISSENS 606783.

Listed part numbers: ULTRA-POWER 13799, GPD 13799C and NISSENS 606783, plus the other parts above.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

11 Temperature Sender / Sensor parts for the 2019 BMW Z4 come from 9 brands — GPD, WALKER PRODUCTS, HOLSTEIN and 6 other brands. The "Popular" part is HOLSTEIN 2CTS0198. 3 parts fit every engine; the other 8 are engine-specific.

The Economy section: 4 options from GPD, HOLSTEIN and VEMO. HOLSTEIN 2CTS0198 is listed in this group.

Standard Replacement: 6 parts, from WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, FACET and 2 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX332.

1 further part sits outside the graded sections, with the same engine-level match.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

5 Thermostat parts are listed for the 2019 BMW Z4, from SKP, MOTORAD and FOUR SEASONS. 1 part fits every engine; the other 4 are engine-specific.

Economy: 2 parts, from SKP. A representative part number is SKP SKTA9251.

The Standard Replacement section: 3 options from MOTORAD and FOUR SEASONS. FOUR SEASONS 86364 is listed in this group.

Listed part numbers: SKP SKTA9251, SKP SK1120221 and FOUR SEASONS 86364, plus the other parts above.

This table covers the housings and outlets the thermostat sits in. Read more

One part is listed for the 2019 BMW Z4 — VEMO V20991310.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

10 Water Pump parts are listed for the 2019 BMW Z4, from GRAF, FVP, VAICO and 4 other brands. GATES 41236 carries the "Popular" badge.

Economy: 1 part, from VAICO. A representative part number is VAICO V204292.

The Standard Replacement section: 6 options from GRAF, GATES, GMB and 2 other brands. GATES 41236 is listed in this group.

3 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: ELRING 113600.