This page lists 31 cooling system parts for the 1989 Excalibur Phaeton, across 4 part types, covering both the 5.0L 305cid V8 and the 5.7L 350cid V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 1989 Excalibur Phaeton, 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. Most of the listed parts are Coolant / Antifreeze (16 parts), Water Pump Gasket (8 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (4 parts). The other 1 part type covers the remaining 3 parts.
The 1989 Excalibur Phaeton was sold with both the 5.0L 305cid V8 and the 5.7L 350cid V8. 25 parts fit every engine; the other 6 are engine-specific. Each part shows which engine(s) it fits.
9 brands supply cooling system parts for the 1989 Excalibur Phaeton, led by PEAK (7 parts), PRESTONE (5 parts) and FEL-PRO (5 parts), plus 6 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1989 Excalibur Phaeton. 7 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and APEX AWP3018 (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 Fits: all 1989 Phaeton engines | AF3055 | 🇺🇸 US | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 1989 Phaeton engines | MV5050GAL | 🇺🇸 US | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular Fits: all 1989 Phaeton engines | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: all 1989 Phaeton engines | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 1989 Phaeton engines | AF2100 | 🇺🇸 US | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: all 1989 Phaeton engines | AFMAX | 🇺🇸 US | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 1989 Phaeton engines | ZX001 | 🇺🇸 US | Original Green1 Gallon | View on Amazon |
| FVP Fits: all 1989 Phaeton engines | GREEN5050GAL | 🇺🇸 US | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | BMA1GAL | 🇺🇸 US | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | RUA1GAL | 🇺🇸 US | Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | FFA1GAL | 🇺🇸 US | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1989 Phaeton engines | SEP1GAL | 🇺🇸 US | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
| PRESTONE Fits: all 1989 Phaeton engines | AF3300 | 🇺🇸 US | 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 are listed for the 1989 Excalibur Phaeton, from PEAK, PRESTONE, FVP and 1 other brand. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 1989 Phaeton.
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 4 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 7 options from PEAK, VALVOLINE, FVP and 1 other brand — built to original-equipment specification. VALVOLINE ZX001 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Fits: all 1989 Phaeton engines | AWO2000 | 🇺🇸 US | Water Outlet Seal | View on Amazon |
| FEL-PRO Fits: 5.0L 305cid V8 | 35062 | 🇺🇸 US | 1-13/16 (In) Inside DiameterComposite Material | View on Amazon |
| FEL-PRO Fits: 5.0L 305cid V8 | 35562T | 🇺🇸 US | Permadryplus | View on Amazon |
| VICTOR REINZ Fits: all 1989 Phaeton engines | 711359200 | 🇺🇸 US | Rigid CarrierWater Outlet | 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.
4 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1989 Excalibur Phaeton, from FEL-PRO, APEX and VICTOR REINZ. 2 parts fit every engine; the other 2 are engine-specific.
This group includes APEX AWO2000, FEL-PRO 35062 and FEL-PRO 35562T and the remaining parts above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| APEX Popular Fits: all 1989 Phaeton engines | AWP3018 | 🇺🇸 US | To Block | View on Amazon |
| FEL-PRO Popular Fits: 5.0L 305cid V8 | 5152 | 🇺🇸 US | To Block3 Bolt Gasket | View on Amazon |
| FEL-PRO Popular Fits: 5.0L 305cid V8 | ES73030 | 🇺🇸 US | Gasket Kit | View on Amazon |
| APEX Fits: all 1989 Phaeton engines | AWP3019 | 🇺🇸 US | To Plate | View on Amazon |
| FEL-PRO Fits: 5.0L 305cid V8 | 13032 | 🇺🇸 US | To BlockBacking Plate | View on Amazon |
| MAHLE / CLEVITE Fits: 5.7L 350cid V8 | K27091 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ Fits: all 1989 Phaeton engines | 711465400 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ Fits: all 1989 Phaeton engines | 711465700 | 🇺🇸 US | 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 are listed for the 1989 Excalibur Phaeton, from FEL-PRO, APEX, VICTOR REINZ and 1 other brand. APEX AWP3018 carries the "Popular" badge. 4 parts fit every engine; the other 4 are engine-specific.
Listed part numbers: APEX AWP3018, FEL-PRO 5152 and FEL-PRO ES73030, plus the other parts above.
Water Pump Stud Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP Fits: all 1989 Phaeton engines | 1343204 | 🇺🇸 US 🇨🇦 CA | Hex Bolt Head | View on Amazon |
| ARP Fits: all 1989 Phaeton engines | 1343203 | 🇺🇸 US 🇨🇦 CA | Black Oxide12 Point Bolt Head | View on Amazon |
| ARP Fits: all 1989 Phaeton engines | 4343203 | 🇺🇸 US 🇨🇦 CA | Stainless Steel12 Point Bolt Head | View on Amazon |
This table covers the Water Pump Stud kits.
3 Water Pump Stud Kit parts for the 1989 Excalibur Phaeton come from ARP. Every part fits both the 5.0L 305cid V8 and the 5.7L 350cid V8.
Listed part numbers: ARP 1343204, ARP 1343203 and ARP 4343203.
Buying Cooling System Parts for a 1989 Excalibur Phaeton
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 Water Pump Gasket .
Frequently Asked Questions
How many cooling system parts fit the 1989 Excalibur Phaeton?
Our catalog currently lists 31 cooling system parts for the 1989 Excalibur Phaeton across 4 subcategories and 9 brands, covering both the 5.0L 305cid V8 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 1989 Excalibur Phaeton engines?
Some do. 25 parts fit every engine; the other 6 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 1989 Excalibur Phaeton?
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 1989 Excalibur Phaeton 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 1989 Excalibur Phaeton?
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 1989 Excalibur Phaeton
Cooling System Parts for Other Excalibur Phaeton Years
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