2025 Buick Encore 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

11 Coolant / Antifreeze parts are listed for the 2025 Buick Encore, from PRESTONE, VALVOLINE and ACDELCO. PRESTONE AF2100 carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, PRESTONE and VALVOLINE supply 2 parts: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

The Premium section lists 2 options from PRESTONE — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 5 options from VALVOLINE, PRESTONE and ACDELCO — built to original-equipment specification. ACDELCO 105027 is listed in this group.

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

One part is listed for the 2025 Buick Encore — GM GENUINE 42869227.

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

GM GENUINE supplies both parts for the 2025 Buick Encore.

This group includes GM GENUINE 42732066 and GM GENUINE 55510882.

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

This group shows a single part: GM GENUINE 84958003.

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

One part is listed for the 2025 Buick Encore — GM GENUINE 42732057.

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

This group shows a single part: GM GENUINE 13545831.

This table covers the Cooling Fan control modules. Read more

This group shows a single part: GM GENUINE 42845589.

This table covers the Hose clamps. Read more

GM GENUINE supplies the 5 Hose Clamp parts for the 2025 Buick Encore. GM GENUINE 13162312 carries the "Popular" badge.

Part numbers include GM GENUINE 13162312, GM GENUINE 90572594 and GM GENUINE 11570871, among others listed above.

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

2 Intercooler parts are listed for the 2025 Buick Encore, from GM GENUINE and TYC.

Listed part numbers: GM GENUINE 42883251 and TYC 18148.

This table covers the Intercooler Air Hose pipes. Read more

GM GENUINE supplies both parts for the 2025 Buick Encore.

Part numbers include GM GENUINE 60008604 and GM GENUINE 60008603.

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

5 Radiator parts are listed for the 2025 Buick Encore, from GPD, CSF, GM GENUINE and 2 other brands. CSF 3956 carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 13877C.

The Standard Replacement section: 4 options from CSF, GM GENUINE, KOYORAD and 1 other brand. CSF 3956 is listed in this group.

Listed part numbers: CSF 3956, GPD 13877C and GM GENUINE 42771759, plus the other parts above.

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

One part is listed for the 2025 Buick Encore — ACDELCO 13544913.

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

This group shows a single part: GM GENUINE 22790134.

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

4 Radiator Fan Assembly parts for the 2025 Buick Encore come from 3 brands — TECHPRO, GM GENUINE and TYC.

The Economy section: 2 options from TECHPRO. TECHPRO GM3115333 is listed in this group.

Standard Replacement: 2 parts, from GM GENUINE and TYC. A representative part number is GM GENUINE 60008467.

Listed part numbers: TECHPRO GM3115333, TECHPRO GM3115361 and GM GENUINE 60008467, 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

3 Radiator Hose parts for the 2025 Buick Encore come from ACDELCO.

Part numbers include ACDELCO 42822120, ACDELCO 42732065 and ACDELCO 42732064.

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

This group shows a single part: GM GENUINE 42589938.

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

4 Temperature Sender / Sensor parts are listed for the 2025 Buick Encore, from STANDARD MOTOR PRODUCTS, HOLSTEIN and GM GENUINE.

Economy: 2 parts, from HOLSTEIN and STANDARD MOTOR PRODUCTS. A representative part number is HOLSTEIN 2CTS0125.

The Standard Replacement section: 2 options from GM GENUINE and STANDARD MOTOR PRODUCTS. GM GENUINE 12641073 is listed in this group.

Part numbers include HOLSTEIN 2CTS0125, STANDARD MOTOR PRODUCTS TX229T and GM GENUINE 12641073, 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

This group shows a single part: MOTORAD 1334183.

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

GM GENUINE supplies both parts for the 2025 Buick Encore.

Listed part numbers: GM GENUINE 55487536 and GM GENUINE 55487252.

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

This group shows a single part: GM GENUINE 1511137.

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

6 Water Pump parts for the 2025 Buick Encore come from 4 brands — GM GENUINE, FVP, GATES and 1 other brand. The "Popular" part is GM GENUINE 25204277.

This group includes GM GENUINE 25204277, FVP 1303040 and GATES 42360 and the remaining parts above.

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

One part is listed for the 2025 Buick Encore — ACDELCO 2512082.

This table covers the Water Pump pulleys. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

One part is listed for the 2025 Buick Encore — ACDELCO 55491377.

This table covers the Water Pump Seal 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 55511228.