2020 BMW 430I 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 2020 BMW 430I come from 5 brands — PRESTONE, PEAK, VALVOLINE and 2 other brands. The "Popular" part is FVP MV5050GAL.

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, AISIN, PEAK and VALVOLINE supply 3 parts: built to original-equipment specification. A representative part number is AISIN ACE008.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

9 Coolant Hose / Pipe parts for the 2020 BMW 430I come from 3 brands — REIN, ÜRO PARTS and VAICO. The "Popular" part is REIN CHE0925.

This group includes REIN CHE0925, ÜRO PARTS 17129845173 and REIN CHE0994 and the remaining parts above.

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 2020 BMW 430I — ELRING 283410.

This table covers the Coolant Hose Connector flanges. Read more

5 Coolant Hose Connector / Flange parts for the 2020 BMW 430I come from 4 brands — VAICO, REIN, MOTORAD and 1 other brand. The "Popular" part is REIN CHU0929.

Part numbers include REIN CHU0929, MOTORAD CH7113 and VAICO V203560, among others listed above.

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

8 Coolant Reservoir parts are listed for the 2020 BMW 430I, from REIN, MAHLE / CLEVITE, ÜRO PARTS and 2 other brands. REIN EPK0235 carries the "Popular" badge.

This group includes REIN EPK0235, ÜRO PARTS 17138677649 and GPD 2411316 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

5 Coolant Reservoir Cap parts are listed for the 2020 BMW 430I, from MOTORAD, CALORSTAT and REIN. MOTORAD T64 carries the "Popular" badge.

Listed part numbers: MOTORAD T64, CALORSTAT RC0084 and CALORSTAT RC0083, plus the other parts 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

11 Radiator parts for the 2020 BMW 430I come from 4 brands — NISSENS, KOYORAD, TYC and 1 other brand. The "Popular" part is KOYORAD A137821.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

5 Radiator Fan Assembly parts are listed for the 2020 BMW 430I, from TECHPRO, FOUR SEASONS and SKP. SKP SK621303 carries the "Popular" badge.

Economy: 3 parts, from TECHPRO and SKP. A representative part number is SKP SK621303.

The Standard Replacement section: 2 options from FOUR SEASONS. FOUR SEASONS 75321 is listed in this group.

Listed part numbers: SKP SK621303, TECHPRO BM3115131 and TECHPRO BM3115132, plus the other parts above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

REIN supplies the 3 Radiator Hose parts for the 2020 BMW 430I.

Listed part numbers: REIN CHR0854, REIN CHR0860 and REIN CHR1047.

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

8 Temperature Sender / Sensor parts for the 2020 BMW 430I come from 6 brands — HOLSTEIN, STANDARD MOTOR PRODUCTS, GPD and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TS658.

The Economy section: 3 options from HOLSTEIN and GPD. GPD 1814534 is listed in this group.

Standard Replacement: 5 parts, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, FACET and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS TS658.

Part numbers include STANDARD MOTOR PRODUCTS TS658, GPD 1814534 and HOLSTEIN 2CTS0198, among others listed above.

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 2020 BMW 430I, from ÜRO PARTS, MOTORAD, BECK/ARNLEY and 2 other brands. MOTORAD 1225221 carries the "Popular" badge.

Economy: 1 part, from ÜRO PARTS. A representative part number is ÜRO PARTS 11537644811.

The Standard Replacement section: 4 options from MOTORAD, BECK/ARNLEY, FOUR SEASONS and 1 other brand. MOTORAD 1225221 is listed in this group.

Part numbers include MOTORAD 1225221, ÜRO PARTS 11537644811 and BECK/ARNLEY 1430991, among others listed above.

This table covers the seals at the thermostat housing and water outlet. 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

This group shows a single part: MAHLE / CLEVITE C33608.

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

3 Thermostat Housing / Water Outlet parts are listed for the 2020 BMW 430I, from SKP, VEMO and MOTORAD.

Economy: 2 parts, from SKP and VEMO. A representative part number is SKP SK121546.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD CH7107 is listed in this group.

Listed part numbers: SKP SK121546, VEMO V20991307 and MOTORAD CH7107.

This table covers the Thermostat Housing / Water Outlet plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2020 BMW 430I — REIN CHM0981.

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 2020 BMW 430I, from VAICO, BOSCH, SALERI and 4 other brands. BOSCH 0392023509 carries the "Popular" badge.

Economy: 2 parts, from VAICO. A representative part number is VAICO V20500701.

The Standard Replacement section: 8 options from BOSCH, SALERI, GMB and 3 other brands. BOSCH 0392023509 is listed in this group.

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 B07530.