2018 Chrysler Pacifica Cooling System Parts

This table covers the Battery coolers. Typical signs include overheated fluid, a leak at the fittings, or mixed fluids in the reservoir. Flush the lines when you replace a cooler. Read more

This group shows a single part: MOTORAD TA9222.

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

18 Coolant / Antifreeze parts are listed for the 2018 Chrysler Pacifica, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL 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, FVP, PEAK and PRESTONE supply 3 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

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

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 8 options from VALVOLINE, PRESTONE, ACDELCO and 2 other brands — built to original-equipment specification. ACDELCO 105027 is listed in this group.

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

One part is listed for the 2018 Chrysler Pacifica — MOPAR 52126356AA.

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

This group shows a single part: ELRING 086460.

This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2018 Chrysler Pacifica — WELLS 5S17124.

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

5 Coolant Reservoir parts for the 2018 Chrysler Pacifica come from 5 brands — DORMAN, GPD, MOPAR and 2 other brands. The "Popular" part is DORMAN 603888.

Part numbers include DORMAN 603888, GPD 2411354 and MOPAR 68217323AA, among others listed 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 for the 2018 Chrysler Pacifica come from 3 brands — MOTORAD, AUTOTECNICA and CALORSTAT.

This group includes AUTOTECNICA GM0714619, CALORSTAT RC0144 and MOTORAD T73 and the remaining parts above.

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

MOTORAD supplies both parts for the 2018 Chrysler Pacifica.

This group includes MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

MOPAR supplies the 3 Hose Clamp parts for the 2018 Chrysler Pacifica.

Listed part numbers: MOPAR 6511759AA, MOPAR 6511760AA and MOPAR 6512672AA.

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 are listed for the 2018 Chrysler Pacifica, from KOYORAD, UAC, GPD and 6 other brands. CSF 3810 carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 13641C.

The Standard Replacement section: 10 options from KOYORAD, UAC, CSF and 5 other brands. CSF 3810 is listed in this group.

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

This group shows a single part: DORMAN 61134.

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

5 Radiator Fan Assembly parts for the 2018 Chrysler Pacifica come from 4 brands — FOUR SEASONS, DORMAN, GPD and 1 other brand. The "Popular" part is DORMAN 620187.

The Economy section: 2 options from DORMAN and GPD. DORMAN 620187 is listed in this group.

Standard Replacement: 3 parts, from FOUR SEASONS and TYC. A representative part number is FOUR SEASONS 75320.

Listed part numbers: DORMAN 620187, GPD 2812038 and FOUR SEASONS 75320, 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

6 Radiator Hose parts for the 2018 Chrysler Pacifica come from 2 brands — GATES and MOPAR. The "Popular" part is GATES 51786.

This group includes GATES 51786, GATES 51825 and GATES 52484 and the remaining parts above.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: MOPAR 68294447AA.

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: MOPAR 68229146AB.

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

This group shows a single part: DORMAN 800400.

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

7 Temperature Sender / Sensor parts are listed for the 2018 Chrysler Pacifica, from MOPAR, GPD, HOLSTEIN and 3 other brands. STANDARD MOTOR PRODUCTS TX261 carries the "Popular" badge.

Economy: 2 parts, from GPD and HOLSTEIN. A representative part number is GPD 1814517.

The Standard Replacement section: 5 options from MOPAR, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 1 other brand. STANDARD MOTOR PRODUCTS TX261 is listed in this group.

Part numbers include STANDARD MOTOR PRODUCTS TX261, GPD 1814517 and HOLSTEIN 2CTS0259, 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 for the 2018 Chrysler Pacifica come from 5 brands — DORMAN, SKP, MOTORAD and 2 other brands. The "Popular" part is MOTORAD 865194.

The Economy section: 2 options from DORMAN and SKP. DORMAN 9023114 is listed in this group.

Standard Replacement: 3 parts, from MOTORAD, FOUR SEASONS and MOPAR. A representative part number is MOTORAD 865194.

Listed part numbers: MOTORAD 865194, DORMAN 9023114 and SKP SK865194, plus the other parts 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

6 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2018 Chrysler Pacifica, from FEL-PRO, MAHLE / CLEVITE and MOPAR. FEL-PRO 36218 carries the "Popular" badge.

This group includes FEL-PRO 36218, MAHLE / CLEVITE C33520 and FEL-PRO 36257 and the remaining parts above.

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

4 Thermostat Housing / Water Outlet parts for the 2018 Chrysler Pacifica come from 4 brands — FOUR SEASONS, GATES, MOPAR and 1 other brand.

Part numbers include FOUR SEASONS 86340, GATES CO35074 and MOPAR 4893794AE, among others listed 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

9 Water Pump parts for the 2018 Chrysler Pacifica come from 9 brands — US MOTOR WORKS, ENGINETECH, FVP and 6 other brands. The "Popular" part is US MOTOR WORKS US8151.

The Economy section: 4 options from US MOTOR WORKS, ENGINETECH, FVP and 1 other brand. US MOTOR WORKS US8151 is listed in this group.

Standard Replacement: 5 parts, from MELLING, DAYCO, GATES and 2 other brands. A representative part number is MELLING MWP548.

Part numbers include US MOTOR WORKS US8151 and ENGINETECH WP538, among others listed 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

4 Water Pump Gasket parts are listed for the 2018 Chrysler Pacifica, from ELRING, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Listed part numbers: ELRING 086450, FEL-PRO 36248 and MAHLE / CLEVITE K33528, plus the other parts above.

This table covers the Water Pump Inlet tubes. Read more

2 Water Pump Inlet Tube parts for the 2018 Chrysler Pacifica come from 2 brands — GATES and MOTORAD.

Part numbers include GATES 12586 and MOTORAD CH2097.