The 2004 Avanti Ii has 38 cooling system parts with verified fitment on this page — 8 part types and 15 brands, covering the 5.7L V8 engine. Each part includes a manufacturer part number and application notes.
On the 2004 Avanti Ii, 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. 24 parts of the 38 listed are Coolant / Antifreeze (10 parts), Water Pump Gasket (10 parts) and Water Pump (4 parts). The other 5 part types cover the remaining 14 parts.
The 2004 Avanti Ii came with a single engine, the 5.7L V8, and every part is verified against it.
15 brands supply cooling system parts for the 2004 Avanti Ii, led by FEL-PRO (5 parts), PRESTONE (4 parts) and ELRING (4 parts), plus 12 more brands. Quality grades include Economy, Premium and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2004 Avanti Ii. 4 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and FEL-PRO 35635 (Water Pump Gasket). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | ZXG051 | 🇺🇸 US | G05 Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US | Max Universal1 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.
10 Coolant / Antifreeze parts are listed for the 2004 Avanti Ii, from PRESTONE, PEAK, VALVOLINE and 1 other brand. 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, PEAK, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.
The Heavy Duty section lists 1 option from VALVOLINE — rated for severe service. VALVOLINE ZXG051 is listed in this group.
The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 868630 | 🇺🇸 US | COOLANT PIPE | 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.
This group shows a single part: ELRING 868630.
Coolant Water Crossover Mounting Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | ES73027 | 🇺🇸 US | Coolant bleed pipe seals | View on Amazon |
| MAHLE / CLEVITE | GS33845 | 🇺🇸 US | Molded Rubber | View on Amazon |
| VICTOR REINZ | 181002301 | 🇺🇸 US | View on Amazon |
This table covers the Coolant Water Crossover Mounting sets.
3 Coolant Water Crossover Mounting Set parts are listed for the 2004 Avanti Ii, from FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
This group includes FEL-PRO ES73027, MAHLE / CLEVITE GS33845 and VICTOR REINZ 181002301.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 658490 | 🇺🇸 US | Inner Diameter [MM]: 58,7 | View on Amazon |
| FEL-PRO | 35720 | 🇺🇸 US | Thermostat Housing Seal | View on Amazon |
| MAHLE / CLEVITE | C31823 | 🇺🇸 US | Molded Rubber | View on Amazon |
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.
3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2004 Avanti Ii, from ELRING, FEL-PRO and MAHLE / CLEVITE.
This group includes ELRING 658490, FEL-PRO 35720 and MAHLE / CLEVITE C31823.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS | WU5081 | 🇺🇸 US | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | DP1317 | 🇺🇸 US | Serpentine Belt Driven | View on Amazon |
| FVP | 1307290 | 🇺🇸 US | View on Amazon | |
| GMB | 1307290 | 🇺🇸 US | View on Amazon |
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.
4 Water Pump parts for the 2004 Avanti Ii come from 4 brands — WJB / INMOTION PARTS, DAYCO, FVP and 1 other brand.
The Economy section: 1 option from WJB / INMOTION PARTS. WJB / INMOTION PARTS WU5081 is listed in this group.
In the Standard Replacement grade, DAYCO, FVP and GMB supply 3 parts: built to original-equipment specification. A representative part number is DAYCO DP1317.
Listed part numbers: WJB / INMOTION PARTS WU5081, DAYCO DP1317 and FVP 1307290, plus the other parts above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35635 | 🇺🇸 US | To Block | View on Amazon |
| FEL-PRO Popular | ES73010 | 🇺🇸 US | Gasket Kit | View on Amazon |
| APEX | AWP3016 | 🇺🇸 US | View on Amazon | |
| ELRING | 868650 | 🇺🇸 US | View on Amazon | |
| ELRING | 853300 | 🇺🇸 US | Gasket Design: Metal Elastomer Gasket | View on Amazon |
| ENGINE PRO | 3112630223 | 🇺🇸 US | Also Fits LS6 Engine | View on Amazon |
| MAHLE / CLEVITE | K31628 | 🇺🇸 US | Contains 2 GasketsMolded Rubber | View on Amazon |
| MELLING | MWPG500 | 🇺🇸 US | Contains 2 gaskets | View on Amazon |
| VICTOR REINZ | 711468800 | 🇺🇸 US | View on Amazon | |
| VICTOR REINZ | 181002001 | 🇺🇸 US | Mounting Set | View on Amazon |
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.
10 Water Pump Gasket parts are listed for the 2004 Avanti Ii, from FEL-PRO, ELRING, VICTOR REINZ and 4 other brands. FEL-PRO 35635 carries the "Popular" badge.
Water Pump Seal / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX | AWP3151 | 🇺🇸 US | View on Amazon | |
| FEL-PRO | 35633 | 🇺🇸 US | O-Ring | View on Amazon |
| MAHLE / CLEVITE | K31629 | 🇺🇸 US | Water Pump Backing Plate GasketMolded Rubber | View on Amazon |
| VICTOR REINZ | 411041500 | 🇺🇸 US | View on Amazon |
This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
4 Water Pump Seal / O-Ring parts for the 2004 Avanti Ii come from 4 brands — APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.
Listed part numbers: APEX AWP3151, FEL-PRO 35633 and MAHLE / CLEVITE K31629, plus the other parts above.
Water Pump Stud Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP | 1343201 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP | 4343202 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
| ARP | 1343202 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
This table covers the Water Pump Stud kits.
3 Water Pump Stud Kit parts for the 2004 Avanti Ii come from ARP.
Listed part numbers: ARP 1343201, ARP 4343202 and ARP 1343202.
Buying Cooling System Parts for a 2004 Avanti Ii
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 5.7L V8 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: Coolant / Antifreeze and Water Pump Gasket .
Frequently Asked Questions
How many cooling system parts fit the 2004 Avanti Ii?
Our catalog currently lists 38 cooling system parts for the 2004 Avanti Ii across 8 subcategories and 15 brands, covering the 5.7L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2004 Avanti Ii?
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 2004 Avanti Ii 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 2004 Avanti Ii?
Every part on this page is matched to the 5.7L V8 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 2004 Avanti Ii
Cooling System Parts for Other Avanti Ii 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.