2004 Honda Pilot 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 2004 Honda Pilot come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 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 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 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, BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

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

This group shows a single part: GATES 20338.

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

4 Coolant Hose / Pipe Seal parts are listed for the 2004 Honda Pilot, from AJUSA, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

This group includes AJUSA 16022450, FEL-PRO ES72774 and MAHLE / CLEVITE C32870 and the remaining parts above.

This table covers the Coolant Hose Connector flanges. Read more

This group shows a single part: FOUR SEASONS 85156.

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

One part is listed for the 2004 Honda Pilot — TECHPRO HO3014123.

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

3 Coolant Reservoir Cap parts are listed for the 2004 Honda Pilot, from CALORSTAT, DORMAN and MOTORAD.

This group includes CALORSTAT RC0175, DORMAN 54370 and MOTORAD T135.

This table covers the Coolant Water Crossover Mounting sets. Read more

2 Coolant Water Crossover Mounting Set parts for the 2004 Honda Pilot come from 2 brands — MAHLE / CLEVITE and VICTOR REINZ.

Part numbers include MAHLE / CLEVITE C17813 and VICTOR REINZ 181016001.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2004 Honda Pilot.

Part numbers include US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

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

3 Cooling System Tester Adapter parts for the 2004 Honda Pilot come from 2 brands — MOTORAD and GATES.

Part numbers include GATES 31409, MOTORAD 3124 and MOTORAD 3125.

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

10 Radiator parts for the 2004 Honda Pilot come from 10 brands — CSF, KOYORAD, AGILITY and 7 other brands. The "Popular" part is CSF 3472.

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

6 Radiator Cap parts for the 2004 Honda Pilot come from 5 brands — MOTORAD, CSF, GATES and 2 other brands. The "Popular" part is CSF 4514.

In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST37.

Standard Replacement: 5 parts, from CSF, GATES, CALORSTAT and 2 other brands. A representative part number is CSF 4514.

Part numbers include CSF 4514, MOTORAD ST37 and GATES 31412, among others listed above.

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

One part is listed for the 2004 Honda Pilot — DORMAN 490216.

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

6 Radiator Fan Assembly parts are listed for the 2004 Honda Pilot, from DORMAN, GPD, SKP and 3 other brands. DORMAN 620238 carries the "Popular" badge.

Economy: 3 parts, from DORMAN, GPD and SKP. A representative part number is DORMAN 620238.

The Standard Replacement section: 3 options from FOUR SEASONS, TYC and UAC. FOUR SEASONS 75345 is listed in this group.

Part numbers include DORMAN 620238, GPD 2811299 and SKP SK620238, among others listed 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

9 Radiator Hose parts are listed for the 2004 Honda Pilot, from CONTINENTAL, DAYCO, GATES and 1 other brand. GATES 22938 carries the "Popular" badge.

Economy: 2 parts, from CONTINENTAL and DAYCO. A representative part number is CONTINENTAL 52021.

The Standard Replacement section: 7 options from GATES, CONTINENTAL, DAYCO and 1 other brand. GATES 22938 is listed in this group.

This group includes GATES 22938, CONTINENTAL 52021 and DAYCO 81061 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

One part is listed for the 2004 Honda Pilot — DORMAN 927241.

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

16 Temperature Sender / Sensor parts for the 2004 Honda Pilot come from 13 brands — STANDARD MOTOR PRODUCTS, ROSTRA, WELLS and 10 other brands. The "Popular" part is SKP SK1580154.

The Economy section: 6 options from SKP, STANDARD MOTOR PRODUCTS, GPD and 3 other brands. SKP SK1580154 is listed in this group.

Standard Replacement: 10 parts, from ROSTRA, WELLS, BECK/ARNLEY and 5 other brands. A representative part number is BECK/ARNLEY 1580154.

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

15 Thermostat parts are listed for the 2004 Honda Pilot, from MOTORAD, BECK/ARNLEY, CALORSTAT and 6 other brands. MOTORAD 5302170 carries the "Popular" badge.

The Heavy Duty section: 2 options from MOTORAD and GATES. MOTORAD 5302170 is listed in this group.

The Premium section: 1 option from MOTORAD. MOTORAD 7302170 is listed in this group.

The Standard Replacement section: 12 options from MOTORAD, BECK/ARNLEY, CALORSTAT and 5 other brands. AISIN THH017 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

11 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2004 Honda Pilot come from 11 brands — BECK/ARNLEY, FEL-PRO, MOTORAD and 8 other brands. The "Popular" part is BECK/ARNLEY 0390115.

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

5 Thermostat Housing / Water Outlet parts are listed for the 2004 Honda Pilot, from GPD, DORMAN, FAMOUS BRAND and 2 other brands. GPD 8241401 carries the "Popular" badge.

Economy: 3 parts, from GPD, DORMAN and FAMOUS BRAND. A representative part number is GPD 8241401.

The Standard Replacement section: 2 options from BECK/ARNLEY and MOTORAD. BECK/ARNLEY 1470073 is listed in this group.

Part numbers include GPD 8241401, DORMAN 9025024 and FAMOUS BRAND 85156, 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

10 Water Pump parts are listed for the 2004 Honda Pilot, from SKP, BECK/ARNLEY, FVP and 7 other brands. SKP SK1352380 carries the "Popular" badge.

Economy: 5 parts, from SKP, BECK/ARNLEY, FVP and 2 other brands. A representative part number is SKP SK1352380.

The Standard Replacement section: 5 options from AISIN, ACDELCO, DAYCO and 2 other brands. AISIN WPH800 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 2004 Honda Pilot come from 6 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 3 other brands. The "Popular" part is FEL-PRO 35677.

This group includes FEL-PRO 35677, MAHLE / CLEVITE K17818 and APEX AWP3161 and the remaining parts above.

This table covers the Water Pump Inlet tubes. Read more

One part is listed for the 2004 Honda Pilot — CONTINENTAL 63918.