The 2000 Hyundai Sonata has 30 cooling system parts with verified fitment on this page — 7 part types and 15 brands, covering both the 2.4L L4 and the 2.5L V6. Each part includes a manufacturer part number and application notes.
The cooling system system on the 2000 Hyundai Sonata 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 Coolant / Antifreeze (17 parts), Cooling System Tester Adapter (4 parts) and Coolant Hose / Pipe Seal (3 parts). The other 4 part types cover the remaining 6 parts.
The 2000 Hyundai Sonata was sold with both the 2.4L L4 and the 2.5L V6. 27 parts fit every engine; the other 3 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2000 Hyundai Sonata cooling system parts are PRESTONE (5 parts), PEAK (4 parts) and VALVOLINE (4 parts), plus 12 more brands. Quality grades include Standard Replacement, Premium and Economy.
4 parts on this 2000 Hyundai Sonata page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and PRESTONE AF2100 (Coolant / Antifreeze). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2000 Sonata engines | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 2000 Sonata engines | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: all 2000 Sonata engines | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: all 2000 Sonata engines | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: all 2000 Sonata engines | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2000 Sonata engines | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 2000 Sonata engines | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 2000 Sonata engines | PXA1GAL | 🇺🇸 US 🇨🇦 CA | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: all 2000 Sonata engines | AF6610 | 🇺🇸 US 🇨🇦 CA | MAX Asian Green1 Gallon | View on Amazon |
| PRESTONE Fits: all 2000 Sonata engines | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2000 Sonata engines | ZXEL1 | 🇺🇸 US 🇨🇦 CA | Dex-Cool Orange1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: all 2000 Sonata engines | 861398 | 🇺🇸 US 🇨🇦 CA | Asian Vehicle Blue1 Gallon | View on Amazon |
| AISIN Fits: all 2000 Sonata engines | ACG004 | 🇺🇸 US 🇨🇦 CA | GreenPOAT | View on Amazon |
| BECK/ARNLEY Fits: all 2000 Sonata engines | 2521501 | 🇺🇸 US 🇨🇦 CA | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY Fits: all 2000 Sonata engines | 2521001 | 🇺🇸 US 🇨🇦 CA | Premium Green1 Gallon | View on Amazon |
| PEAK Fits: all 2000 Sonata engines | PAG1GAL | 🇺🇸 US 🇨🇦 CA | OET Asian Extended Life Green1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2000 Sonata engines | 675130 | 🇺🇸 US 🇨🇦 CA | Asian Vehicle Red1 Gallon | View on Amazon |
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.
17 Coolant / Antifreeze parts for the 2000 Hyundai Sonata come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 2.4L L4 and the 2.5L V6.
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, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
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, VALVOLINE, BECK/ARNLEY, AISIN and 1 other brand supply 7 parts: built to original-equipment specification. A representative part number is VALVOLINE ZXEL1.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 2.4L L4 | 16022400 | 🇺🇸 US 🇨🇦 CA | COOLANT PIPE | View on Amazon |
| AJUSA Fits: 2.5L V6 | 16060600 | 🇺🇸 US 🇨🇦 CA | COOLANT PIPE | View on Amazon |
| HYUNDAI Fits: all 2000 Sonata engines | 2546221000 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
3 Coolant Hose / Pipe Seal parts are listed for the 2000 Hyundai Sonata, from AJUSA and HYUNDAI. 1 part fits every engine; the other 2 are engine-specific.
Part numbers include AJUSA 16022400, AJUSA 16060600 and HYUNDAI 2546221000.
Coolant Hose Connector / Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: 2.4L L4 | 85395 | 🇺🇸 US 🇨🇦 CA | Water Inlet | View on Amazon |
This table covers the Coolant Hose Connector flanges.
This group shows a single part: FOUR SEASONS 85395.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: all 2000 Sonata engines | HY3014108 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
One part is listed for the 2000 Hyundai Sonata — TECHPRO HY3014108.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: all 2000 Sonata engines | RC0204 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
One part is listed for the 2000 Hyundai Sonata — CALORSTAT RC0204.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS Fits: all 2000 Sonata engines | 16749 | 🇺🇸 US 🇨🇦 CA | Econo Control | View on Amazon |
| US MOTOR WORKS Fits: all 2000 Sonata engines | 16789 | 🇺🇸 US 🇨🇦 CA | Better Control | View on Amazon |
| US MOTOR WORKS Fits: all 2000 Sonata engines | 16795 | 🇺🇸 US 🇨🇦 CA | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2000 Hyundai Sonata. All of them fit every engine offered in the 2000 Sonata.
Listed part numbers: US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: all 2000 Sonata engines | 31428 | 🇺🇸 US 🇨🇦 CA | May Require Spacer Number 31416 | View on Amazon |
| MOTORAD Fits: all 2000 Sonata engines | 3121 | 🇺🇸 US 🇨🇦 CA | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD Fits: all 2000 Sonata engines | 3122 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| STANT Fits: all 2000 Sonata engines | 12021 | 🇺🇸 US 🇨🇦 CA | 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 2000 Hyundai Sonata come from 3 brands — MOTORAD, GATES and STANT. Every part fits both the 2.4L L4 and the 2.5L V6.
Part numbers include GATES 31428, MOTORAD 3121 and MOTORAD 3122, among others listed above.
Buying Cooling System Parts for a 2000 Hyundai Sonata
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.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- 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: Coolant / Antifreeze and Cooling System Tester Adapter .
Frequently Asked Questions
How many cooling system parts fit the 2000 Hyundai Sonata?
Our catalog currently lists 30 cooling system parts for the 2000 Hyundai Sonata across 7 subcategories and 15 brands, covering both the 2.4L L4 and the 2.5L V6. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2000 Hyundai Sonata engines?
Some do. 27 parts fit every engine; the other 3 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2000 Hyundai Sonata?
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 2000 Hyundai Sonata 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 2000 Hyundai Sonata?
First match the engine — each row shows which engine(s) the part fits. 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 2000 Hyundai Sonata
Cooling System Parts for Other Hyundai Sonata Years
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