33 Cooling system parts are listed for the 1985 Avanti Ii, in 4 part types, covering the 5.0L 305cid V8 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1985 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. 30 parts of the 33 listed are Coolant / Antifreeze (16 parts), Water Pump Gasket (8 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (6 parts). The other 1 part type covers the remaining 3 parts.
Every part on this page is matched to the 5.0L 305cid V8 — the only engine offered in the 1985 Avanti Ii.
The most listed brands for 1985 Avanti Ii cooling system parts are PEAK (7 parts), PRESTONE (5 parts) and FEL-PRO (5 parts), plus 6 more brands. Quality grades include Standard Replacement, Economy and Premium.
8 parts on this 1985 Avanti Ii page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and FEL-PRO 35062 (Thermostat / Thermostat Housing / Water Outlet Seal). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | GREEN5050GAL | 🇺🇸 US 🇨🇦 CA | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK | BMA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK | RUA1GAL | 🇺🇸 US 🇨🇦 CA | Conventional Green1 Gallon | View on Amazon |
| PEAK | FFA1GAL | 🇺🇸 US 🇨🇦 CA | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK | SEP1GAL | 🇺🇸 US 🇨🇦 CA | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
| PRESTONE | AF3300 | 🇺🇸 US 🇨🇦 CA | Prime Conventional Green 1 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.
16 Coolant / Antifreeze parts for the 1985 Avanti Ii come from 4 brands — PEAK, PRESTONE, FVP and 1 other brand. The "Popular" part is FVP MV5050GAL.
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, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Heavy Duty grade, VALVOLINE supplies 1 part: rated for severe service. A representative part number is VALVOLINE ZXG051.
In the Premium grade, PRESTONE and PEAK supply 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, PEAK, FVP and PRESTONE supply 6 parts: built to original-equipment specification. A representative part number is FVP GREEN5050GAL.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35062 | 🇺🇸 US 🇨🇦 CA | 1-13/16 (In) Inside DiameterComposite Material | View on Amazon |
| FEL-PRO Popular | 35562T | 🇺🇸 US 🇨🇦 CA | Permadryplus | View on Amazon |
| APEX | AWO2000 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| MAHLE / CLEVITE | C24109 | 🇺🇸 US 🇨🇦 CA | PaperUniversal Type | View on Amazon |
| MAHLE / CLEVITE | C32721 | 🇺🇸 US 🇨🇦 CA | Molded Rubber with Plastic CarrierWater Outlet Seal | View on Amazon |
| VICTOR REINZ | 711359200 | 🇺🇸 US 🇨🇦 CA | Rigid Carrierwith 2 Bolt Holes | 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.
6 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1985 Avanti Ii come from 4 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 1 other brand. The "Popular" part is FEL-PRO 35062.
Part numbers include FEL-PRO 35062, FEL-PRO 35562T and APEX AWO2000, among others listed above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 5152 | 🇺🇸 US 🇨🇦 CA | To Block3 Bolt Gasket | View on Amazon |
| FEL-PRO Popular | ES73030 | 🇺🇸 US 🇨🇦 CA | Gasket Kit | View on Amazon |
| APEX | AWP3018 | 🇺🇸 US 🇨🇦 CA | Water Pump To Block | View on Amazon |
| APEX | AWP3019 | 🇺🇸 US 🇨🇦 CA | Water Pump to Plate | View on Amazon |
| FEL-PRO | 13032 | 🇺🇸 US 🇨🇦 CA | To BlockBacking Plate | View on Amazon |
| MAHLE / CLEVITE | K27091 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| VICTOR REINZ | 711465400 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| VICTOR REINZ | 711465700 | 🇺🇸 US 🇨🇦 CA | Paper | 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.
8 Water Pump Gasket parts for the 1985 Avanti Ii come from 4 brands — FEL-PRO, APEX, VICTOR REINZ and 1 other brand. The "Popular" part is FEL-PRO 5152.
Listed part numbers: FEL-PRO 5152, FEL-PRO ES73030 and APEX AWP3018, plus the other parts above.
Water Pump Stud Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP | 1343204 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP | 1343203 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
| ARP | 4343203 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
This table covers the Water Pump Stud kits.
ARP supplies the 3 Water Pump Stud Kit parts for the 1985 Avanti Ii.
Part numbers include ARP 1343204, ARP 1343203 and ARP 4343203.
Buying Cooling System Parts for a 1985 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 5.0L 305cid 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 1985 Avanti Ii?
Our catalog currently lists 33 cooling system parts for the 1985 Avanti Ii across 4 subcategories and 9 brands, covering the 5.0L 305cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1985 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 1985 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 1985 Avanti Ii?
Every part on this page is matched to the 5.0L 305cid 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 1985 Avanti Ii
Cooling System Parts for Other Avanti Ii Years
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