2005 Acura RL 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

16 Coolant / Antifreeze parts are listed for the 2005 Acura RL, from PRESTONE, PEAK, VALVOLINE and 4 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, PRESTONE, PEAK 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 6 options from BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.

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

5 Coolant Hose / Pipe Seal parts for the 2005 Acura RL come from 4 brands — AJUSA, MAHLE / CLEVITE, FEL-PRO and 1 other brand. The "Popular" part is MAHLE / CLEVITE C32870.

This group includes MAHLE / CLEVITE C32870, AJUSA 16022400 and AJUSA 16022450 and the remaining parts above.

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

2 Coolant Reservoir parts for the 2005 Acura RL come from 2 brands — TECHPRO and VARIOUS MFR.

Listed part numbers: TECHPRO AC3014101, plus the other parts 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

This group shows a single part: CALORSTAT RC0175.

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

2 Coolant Water Crossover Mounting Set parts are listed for the 2005 Acura RL, from MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: MAHLE / CLEVITE C17813 and VICTOR REINZ 181016001.

This table covers the Cooling Fan control modules. Read more

3 Cooling Fan Control Module parts for the 2005 Acura RL come from 2 brands — US MOTOR WORKS and WELLS.

Listed part numbers: US MOTOR WORKS 16789, US MOTOR WORKS 16795 and WELLS 6H1515.

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

3 Cooling System Tester Adapter parts are listed for the 2005 Acura RL, from MOTORAD and GATES.

Listed part numbers: 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 are listed for the 2005 Acura RL, from OSC, GPD, CSF and 6 other brands. CSF 3253 carries the "Popular" badge.

Economy: 1 part, from GPD. A representative part number is GPD 2838C.

The Standard Replacement section: 9 options from OSC, CSF, DENSO and 5 other brands. CSF 3253 is listed in this group.

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 are listed for the 2005 Acura RL, from MOTORAD, CSF, GATES and 2 other brands. CSF 4514 carries the "Popular" badge.

The Locking Replacement section lists 1 option from MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST37 is listed in this group.

The Standard Replacement section: 5 options from CSF, GATES, CALORSTAT and 2 other brands. CSF 4514 is listed in this group.

This group includes CSF 4514, MOTORAD ST37 and GATES 31412 and the remaining 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 fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

6 Radiator Fan Assembly parts for the 2005 Acura RL come from 5 brands — GPD, DORMAN, TECHPRO and 2 other brands. The "Popular" part is DORMAN 620277.

The Economy section: 4 options from GPD, DORMAN and TECHPRO. DORMAN 620277 is listed in this group.

Standard Replacement: 2 parts, from VDO / CONTINENTAL and UAC. A representative part number is VDO / CONTINENTAL FA70939.

This group includes DORMAN 620277, GPD 2811936 and GPD 2811937 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

5 Radiator Hose parts for the 2005 Acura RL come from 4 brands — DAYCO, ACDELCO, CONTINENTAL and 1 other brand. The "Popular" part is DAYCO 72492.

This group includes DAYCO 72492, ACDELCO 26614X and CONTINENTAL 66340 and the remaining parts above.

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 are listed for the 2005 Acura RL, from HOLSTEIN, STANDARD MOTOR PRODUCTS, SKP and 11 other brands. SKP SK5S1529 carries the "Popular" badge.

Economy: 6 parts, from HOLSTEIN, SKP, GPD and 2 other brands. A representative part number is SKP SK5S1529.

The Standard Replacement section: 10 options from BECK/ARNLEY, DELPHI, HELLA and 7 other brands. BECK/ARNLEY 1580811 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

17 Thermostat parts for the 2005 Acura RL come from 9 brands — MOTORAD, GATES, BECK/ARNLEY and 6 other brands. The "Popular" part is MOTORAD 5302170.

In the Heavy Duty grade, MOTORAD and GATES supply 2 parts: 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: 14 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

10 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2005 Acura RL, from FEL-PRO, MOTORAD, AISIN and 7 other brands. FEL-PRO 35162 carries the "Popular" badge.

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

11 Water Pump parts for the 2005 Acura RL come from 10 brands — AISIN, SKP, BECK/ARNLEY and 7 other brands. The "Popular" part is SKP SK1351530.

The Economy section: 5 options from SKP, BECK/ARNLEY, FVP and 2 other brands. SKP SK1351530 is listed in this group.

Standard Replacement: 6 parts, from AISIN, GMB, ACDELCO and 2 other brands. A representative part number is AISIN WPH801.