2026 Jeep Gladiator 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

VALVOLINE supplies the 5 Coolant / Antifreeze parts for the 2026 Jeep Gladiator. VALVOLINE ZXEL1 carries the "Popular" badge.

In the Economy grade, VALVOLINE supplies 1 part: the catalog's value-priced group. A representative part number is VALVOLINE 719009.

The Heavy Duty section lists 1 option from VALVOLINE — rated for severe service. VALVOLINE ZXG051 is listed in this group.

The Standard Replacement section lists 3 options from VALVOLINE — built to original-equipment specification. VALVOLINE ZXEL1 is listed in this group.

This group includes VALVOLINE ZXEL1, VALVOLINE 719009 and VALVOLINE ZXG051 and the remaining parts above.

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

MOPAR supplies both parts for the 2026 Jeep Gladiator.

This group includes MOPAR 68280802AD and MOPAR 68280801AE.

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

This group shows a single part: MOPAR 68283565AB.

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

2 Coolant Reservoir Cap parts for the 2026 Jeep Gladiator come from 2 brands — CALORSTAT and MOTORAD.

Part numbers include CALORSTAT RC0144 and MOTORAD T73.

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

6 Radiator parts are listed for the 2026 Jeep Gladiator, from MOPAR, GPD, CSF and 2 other brands. CSF 3953 carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 13754C.

The Standard Replacement section: 5 options from MOPAR, CSF, FVP and 1 other brand. CSF 3953 is listed in this group.

Listed part numbers: CSF 3953, GPD 13754C and MOPAR 68314786AA, plus the other parts above.

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 2026 Jeep Gladiator come from 3 brands — MOPAR, TYC and DORMAN.

The Economy section: 1 option from DORMAN. DORMAN 621969 is listed in this group.

Standard Replacement: 4 parts, from MOPAR and TYC. A representative part number is MOPAR 68282799AE.

This group includes DORMAN 621969, MOPAR 68282799AE and MOPAR 68272755AC 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 for the 2026 Jeep Gladiator come from MOPAR.

This group includes MOPAR 68310710AA, MOPAR 68280778AA and MOPAR 68280782AC.

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

2 Radiator Mount Bushing parts for the 2026 Jeep Gladiator come from MOPAR.

Part numbers include MOPAR 52079884AA and MOPAR 52079419.

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

MOPAR supplies both parts for the 2026 Jeep Gladiator.

Part numbers include MOPAR 68270732AB and MOPAR 68217702AD.

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: MOPAR 4893926AH.

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

3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2026 Jeep Gladiator, from MOPAR and FEL-PRO.

Part numbers include FEL-PRO 36257, MOPAR 4893786AA and MOPAR 68212516AA.

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

This group shows a single part: MOPAR 4893943AC.

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

5 Water Pump parts for the 2026 Jeep Gladiator come from 4 brands — MOPAR, US MOTOR WORKS, GMB and 1 other brand. The "Popular" part is GMB 1204610.

The Economy section: 1 option from US MOTOR WORKS. US MOTOR WORKS US8170 is listed in this group.

Standard Replacement: 4 parts, from MOPAR, GMB and FVP. A representative part number is GMB 1204610.

This group includes GMB 1204610 and US MOTOR WORKS US8170 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 2026 Jeep Gladiator — MOPAR 68214109AB.