This page lists 15 cooling system parts for the 1998 Acura SLX, across 4 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
The cooling system system on the 1998 Acura SLX keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Radiator (6 parts), Cooling System Tester Adapter (4 parts) and Coolant Hose / Pipe (3 parts). The other 1 part type covers the remaining 2 parts.
Every part on this page is matched to the 3.5L V6 — the only engine offered in the 1998 Acura SLX.
The most listed brands for 1998 Acura SLX cooling system parts are GATES (2 parts), US MOTOR WORKS (2 parts) and MOTORAD (2 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
2 parts on this 1998 Acura SLX page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including KOYORAD A2221 (Radiator) and SPECTRA PREMIUM CU1302 (Radiator). Click any part number to see every vehicle that part fits.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 14064S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 63347 | 🇺🇸 US | Molded | View on Amazon |
| GATES | 18421 | 🇺🇸 US | Molded1/2" x 8" | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
3 Coolant Hose / Pipe parts for the 1998 Acura SLX come from 3 brands — ACDELCO, CONTINENTAL and GATES.
Listed part numbers: ACDELCO 14064S, CONTINENTAL 63347 and GATES 18421.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 16779 | 🇺🇸 US | Better Control | View on Amazon |
| US MOTOR WORKS | 16795 | 🇺🇸 US | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
US MOTOR WORKS supplies both parts for the 1998 Acura SLX.
Listed part numbers: US MOTOR WORKS 16779 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31428 | 🇺🇸 US | May Require Spacer Number 31416 | View on Amazon |
| MOTORAD | 3121 | 🇺🇸 US | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3122 | 🇺🇸 US | Standard | View on Amazon |
| STANT | 12021 | 🇺🇸 US | Radiator Cap/Cooling System Tester Adapter | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
4 Cooling System Tester Adapter parts for the 1998 Acura SLX come from 3 brands — MOTORAD, GATES and STANT.
Listed part numbers: GATES 31428, MOTORAD 3121 and MOTORAD 3122, plus the other parts above.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | IZ3010101 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KOYORAD Popular | A2221 | 🇺🇸 US | View on Amazon | |
| SPECTRA PREMIUM Popular | CU1302 | 🇺🇸 US | View on Amazon | |
| AGILITY | 8011302 | 🇺🇸 US | View on Amazon | |
| FVP | RAD2221 | 🇺🇸 US | View on Amazon | |
| OSC | 2221 | 🇺🇸 US | View on Amazon |
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.
6 Radiator parts for the 1998 Acura SLX come from 6 brands — TECHPRO, KOYORAD, SPECTRA PREMIUM and 3 other brands. The "Popular" part is KOYORAD A2221.
The Economy section lists 1 option from TECHPRO — the catalog's value-priced group. TECHPRO IZ3010101 is listed in this group.
In the Standard Replacement grade, KOYORAD, SPECTRA PREMIUM, AGILITY and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is KOYORAD A2221.
Part numbers include KOYORAD A2221, TECHPRO IZ3010101 and SPECTRA PREMIUM CU1302, among others listed above.
Buying Cooling System Parts for a 1998 Acura SLX
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 3.5L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Radiator and Cooling System Tester Adapter .
Frequently Asked Questions
How many cooling system parts fit the 1998 Acura SLX?
Our catalog currently lists 15 cooling system parts for the 1998 Acura SLX across 4 subcategories and 12 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1998 Acura SLX?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1998 Acura SLX was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1998 Acura SLX?
Every part on this page is matched to the 3.5L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1998 Acura SLX
Cooling System Parts for Other Acura SLX Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.