2004 Acura NSX 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

18 Coolant / Antifreeze parts are listed for the 2004 Acura NSX, from PRESTONE, PEAK, VALVOLINE and 4 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2004 NSX.

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, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

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, BECK/ARNLEY, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE ZXEL1 is listed in this group.

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 2004 Acura NSX come from MOTORAD. Every part fits both the 3.0L V6 and the 3.2L V6.

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 ST16R.

Standard Replacement: 1 part, from MOTORAD. A representative part number is MOTORAD T16R.

Listed part numbers: MOTORAD ST16R and MOTORAD T16R.

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

6 Cooling System Tester Adapter parts are listed for the 2004 Acura NSX, from MOTORAD, GATES and STANT. 2 parts fit every engine; the other 4 are engine-specific.

Part numbers include GATES 31428, MOTORAD 3121 and MOTORAD 3122, among others listed above.

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

2 Radiator parts are listed for the 2004 Acura NSX, from TECHPRO and KOYORAD. All of them fit every engine offered in the 2004 NSX.

Economy: 1 part, from TECHPRO. A representative part number is TECHPRO AC3010109.

The Standard Replacement section: 1 option from KOYORAD. KOYORAD V2032 is listed in this group.

This group includes TECHPRO AC3010109 and KOYORAD V2032.

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

5 Radiator Cap parts are listed for the 2004 Acura NSX, from CALORSTAT, GATES and SKP. SKP SK10233 carries the "Popular" badge. All of them fit every engine offered in the 2004 NSX.

The Locking Replacement section: 2 options from CALORSTAT and GATES. CALORSTAT RC0212 is listed in this group.

The Standard Replacement section: 3 options from SKP, CALORSTAT and GATES. SKP SK10233 is listed in this group.

Listed part numbers: SKP SK10233, CALORSTAT RC0212 and GATES 31534, plus the other parts above.

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

This group shows a single part: DORMAN 490216.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

FOUR SEASONS supplies both parts for the 2004 Acura NSX.

Listed part numbers: FOUR SEASONS 75756 and FOUR SEASONS 75750.

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

2 Radiator Hose parts for the 2004 Acura NSX come from CONTINENTAL. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include CONTINENTAL 62600 and CONTINENTAL 62735.

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

14 Temperature Sender / Sensor parts are listed for the 2004 Acura NSX, from STANDARD MOTOR PRODUCTS, SKP, GPD and 10 other brands. SKP SK1580154 carries the "Popular" badge. All of them fit every engine offered in the 2004 NSX.

Economy: 6 parts, from SKP, STANDARD MOTOR PRODUCTS, GPD and 3 other brands. A representative part number is SKP SK1580154.

The Standard Replacement section: 8 options from BECK/ARNLEY, DELPHI, FOUR SEASONS and 5 other brands. BECK/ARNLEY 1580154 is listed in this group.

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 for the 2004 Acura NSX come from 9 brands — MOTORAD, BECK/ARNLEY, CALORSTAT and 6 other brands. The "Popular" part is MOTORAD 5302170. 14 parts fit every engine; the other 1 is engine-specific.

In the Heavy Duty grade, MOTORAD supplies 1 part: rated for severe service. A representative part number is MOTORAD 5302170.

Premium: 1 part, from MOTORAD. A representative part number is MOTORAD 7302170.

Standard Replacement: 13 parts, from MOTORAD, BECK/ARNLEY, CALORSTAT and 6 other brands. A representative part number is AISIN THH017.

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

9 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2004 Acura NSX, from FEL-PRO, MOTORAD, AISIN and 6 other brands. FEL-PRO 35162 carries the "Popular" badge. 8 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: FEL-PRO 35162, MOTORAD MG81 and AISIN THP509, plus the other parts above.

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

4 Thermostat Housing / Water Outlet parts for the 2004 Acura NSX come from 4 brands — DORMAN, GPD, FOUR SEASONS and 1 other brand. Every part fits both the 3.0L V6 and the 3.2L V6.

The Economy section: 2 options from DORMAN and GPD. DORMAN 9025116 is listed in this group.

Standard Replacement: 2 parts, from FOUR SEASONS and MOTORAD. A representative part number is FOUR SEASONS 85308.

Listed part numbers: DORMAN 9025116, GPD 8241505 and FOUR SEASONS 85308, plus the other 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

2 Water Pump parts for the 2004 Acura NSX come from 2 brands — FVP and US MOTOR WORKS. Every part fits both the 3.0L V6 and the 3.2L V6.

This group includes FVP US9219 and the remaining parts above.