2018 Buick Envision 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

17 Coolant / Antifreeze parts for the 2018 Buick Envision come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.

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, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.

In the Premium grade, PRESTONE and PEAK supply 4 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, PRESTONE, ACDELCO and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is ACDELCO 105027.

This table covers the Coolant Air Bleed Hose pipes. Read more

5 Coolant Air Bleed Hose / Pipe parts for the 2018 Buick Envision come from GM GENUINE. 2 parts fit every engine; the other 3 are engine-specific.

Part numbers include GM GENUINE 12634280, GM GENUINE 23497241 and GM GENUINE 12683453, among others listed above.

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

2 Coolant Hose / Pipe parts for the 2018 Buick Envision come from GM GENUINE. 1 part fits every engine; the other 1 is engine-specific.

This group includes GM GENUINE 12627054 and GM GENUINE 12679317.

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

3 Coolant Hose / Pipe Seal parts are listed for the 2018 Buick Envision, from FEL-PRO, GM GENUINE and MAHLE / CLEVITE. All of them fit every engine offered in the 2018 Envision.

Part numbers include FEL-PRO 36156, GM GENUINE 12627055 and MAHLE / CLEVITE C33470.

This table covers the seals at the Coolant Hose Connector / Flange. 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 2018 Buick Envision — ELRING 599130.

This table covers the Coolant Hose retainers and clips. Read more

2 Coolant Hose Retainer / Clip parts for the 2018 Buick Envision come from GM GENUINE. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.

Listed part numbers: GM GENUINE 23486366 and GM GENUINE 13220805.

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

2 Coolant Reservoir parts are listed for the 2018 Buick Envision, from GM GENUINE and VAICO. All of them fit every engine offered in the 2018 Envision.

Part numbers include GM GENUINE 84390872 and VAICO V402113.

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

6 Coolant Reservoir Cap parts are listed for the 2018 Buick Envision, from DORMAN, SKP, AUTOTECNICA and 3 other brands. DORMAN 54218 carries the "Popular" badge. All of them fit every engine offered in the 2018 Envision.

This group includes DORMAN 54218, SKP SK54218 and AUTOTECNICA GM0714619 and the remaining parts above.

This table covers the adapters used to pressure-test this cooling system. Read more

3 Cooling System Tester Adapter parts for the 2018 Buick Envision come from 2 brands — MOTORAD and GATES. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include GATES 31391, MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

4 Hose Clamp parts for the 2018 Buick Envision come from GM GENUINE. 3 parts fit every engine; the other 1 is engine-specific.

Part numbers include GM GENUINE 90572595, GM GENUINE 90530642 and GM GENUINE 90572587, among others listed above.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

5 Intercooler parts for the 2018 Buick Envision come from 5 brands — TYC, GPD, TECHPRO and 2 other brands. The "Popular" part is TYC 18089. 1 part fits every engine; the other 4 are engine-specific.

Listed part numbers: TYC 18089, GPD 2711360 and TECHPRO GM3012111, plus the other parts above.

This table covers the Intercooler Air Hose pipes. Read more

2 Intercooler Air Hose / Pipe parts for the 2018 Buick Envision come from GM GENUINE.

Part numbers include GM GENUINE 23176127 and GM GENUINE 23313886.

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

15 Radiator parts for the 2018 Buick Envision come from 10 brands — CSF, AGILITY, GM GENUINE and 7 other brands. The "Popular" part is ULTRA-POWER 13633.

The Economy section: 2 options from ULTRA-POWER and GPD. ULTRA-POWER 13633 is listed in this group.

Standard Replacement: 7 parts, from CSF, AGILITY, GM GENUINE and 4 other brands. A representative part number is CSF 3864.

6 further parts sit outside the graded sections, with the same engine-level match.

This table covers the caps that hold system pressure at the radiator or reservoir neck. 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

2 Radiator Cap parts for the 2018 Buick Envision come from 2 brands — ACDELCO and PROFESSIONAL PARTS SWEDEN. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.

Listed part numbers: ACDELCO RC124 and PROFESSIONAL PARTS SWEDEN 21342353.

This table covers the petcocks used to drain the radiator. Read more

2 Radiator Drain Petcock parts are listed for the 2018 Buick Envision, from ACDELCO and DORMAN. All of them fit every engine offered in the 2018 Envision.

Part numbers include ACDELCO 22985584 and DORMAN 61134.

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

8 Radiator Fan Assembly parts are listed for the 2018 Buick Envision, from TECHPRO, GM GENUINE, FOUR SEASONS and 3 other brands. FOUR SEASONS 75187 carries the "Popular" badge.

Economy: 2 parts, from TECHPRO. A representative part number is TECHPRO GM3115325.

The Standard Replacement section: 6 options from GM GENUINE, FOUR SEASONS, AGILITY and 2 other brands. FOUR SEASONS 75187 is listed in this group.

This group includes FOUR SEASONS 75187, TECHPRO GM3115325 and TECHPRO GM3115293 and the remaining 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

3 Radiator Hose parts are listed for the 2018 Buick Envision, from ACDELCO and GM GENUINE. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: ACDELCO 84515021, ACDELCO 23262490 and GM GENUINE 23486368.

This table covers the Radiator Insulator sleeves. Read more

GM GENUINE supplies both parts for the 2018 Buick Envision. All of them fit every engine offered in the 2018 Envision.

This group includes GM GENUINE 23134225 and GM GENUINE 23134224.

This table covers the seals at the Radiator. 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 2018 Buick Envision — GM GENUINE 22928071.

This table covers the Radiator Upper Air Baffle retainers and clips. Read more

DORMAN supplies both parts for the 2018 Buick Envision. All of them fit every engine offered in the 2018 Envision.

This group includes DORMAN 45814 and DORMAN 963208.

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

9 Temperature Sender / Sensor parts for the 2018 Buick Envision come from 9 brands — GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 6 other brands. The "Popular" part is GM GENUINE 12656444. Every part fits both the 2.0L L4 Turbocharged and the 2.5L L4.

The Economy section: 4 options from GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 1 other brand. GPD 1712905 is listed in this group.

Standard Replacement: 5 parts, from GM GENUINE, STANDARD MOTOR PRODUCTS, NTK and 2 other brands. A representative part number is GM GENUINE 12656444.

Part numbers include GM GENUINE 12656444, GPD 1712905 and HOLSTEIN 2CTS0187, among others listed above.

This table covers the Temperature Sender / Sensor clips. Read more

This group shows a single part: DORMAN 66264.

This table covers the Temperature Sender / Sensor O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: GM GENUINE 12639042.

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

10 Thermostat parts are listed for the 2018 Buick Envision, from GATES, MOTORAD, CALORSTAT and 4 other brands. GATES 34717 carries the "Popular" badge. All of them fit every engine offered in the 2018 Envision.

Economy: 3 parts, from AUTOTECNICA, DORMAN and SKP. A representative part number is AUTOTECNICA GM0720261.

The Standard Replacement section: 7 options from GATES, MOTORAD, CALORSTAT and 1 other brand. GATES 34717 is listed in this group.

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

8 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2018 Buick Envision come from 5 brands — GM GENUINE, MAHLE / CLEVITE, VICTOR REINZ and 2 other brands. The "Popular" part is GM GENUINE 12630780. 5 parts fit every engine; the other 3 are engine-specific.

Listed part numbers: GM GENUINE 12630780, GM GENUINE 12664202 and ELRING 564270, plus the other parts above.

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

8 Thermostat Housing / Water Outlet parts are listed for the 2018 Buick Envision, from GM GENUINE, DORMAN, SKP and 4 other brands. DORMAN 9022087 carries the "Popular" badge.

Economy: 3 parts, from DORMAN, SKP and VEMO. A representative part number is DORMAN 9022087.

The Standard Replacement section: 5 options from GM GENUINE, FOUR SEASONS, GATES and 1 other brand. GM GENUINE 1581764 is listed in this group.

This group includes DORMAN 9022087, SKP SK9022087 and VEMO V51990021 and the remaining parts above.

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

19 Water Pump parts are listed for the 2018 Buick Envision, from US MOTOR WORKS, FVP, GM GENUINE and 7 other brands. US MOTOR WORKS US8102 carries the "Popular" badge.

Economy: 8 parts, from US MOTOR WORKS, FVP, SKP and 1 other brand. A representative part number is US MOTOR WORKS US8102.

The Standard Replacement section: 11 options from GM GENUINE, GATES, DAYCO and 3 other brands. ACDELCO 2521009 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

6 Water Pump Gasket parts for the 2018 Buick Envision come from 4 brands — GM GENUINE, ELRING, FEL-PRO and 1 other brand. The "Popular" part is GM GENUINE 2512064.

Part numbers include GM GENUINE 2512064, GM GENUINE 2512063 and ELRING 564390, among others listed above.