11 Cooling system parts are listed for the 1946 Allard K1, in 1 part type, covering both the 3.6L 221cid V8 and the 3.9L 239cid V8. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1946 Allard K1, 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. Every listed part is Coolant / Antifreeze.
The 1946 Allard K1 was sold with both the 3.6L 221cid V8 and the 3.9L 239cid V8. All 11 parts on this page fit every engine.
The most listed brands for 1946 Allard K1 cooling system parts are PEAK (7 parts), VALVOLINE (2 parts) and FVP (1 part), plus 1 more brand. Quality grades include Standard Replacement, Economy and Premium.
3 parts on this 1946 Allard K1 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP GREEN5050GAL (Coolant / Antifreeze) and PRESTONE AF3300 (Coolant / Antifreeze). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: all 1946 K1 engines | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: all 1946 K1 engines | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: all 1946 K1 engines | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 1946 K1 engines | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 1946 K1 engines | GREEN5050GAL | 🇺🇸 US | Low Silicate Blend1 Gallon | View on Amazon |
| PRESTONE Popular Fits: all 1946 K1 engines | AF3300 | 🇺🇸 US | Prime Conventional Green 1 Gallon | View on Amazon |
| VALVOLINE Popular Fits: all 1946 K1 engines | ZX001 | 🇺🇸 US | Original Green1 Gallon | View on Amazon |
| PEAK Fits: all 1946 K1 engines | BMA1GAL | 🇺🇸 US | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1946 K1 engines | RUA1GAL | 🇺🇸 US | Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1946 K1 engines | FFA1GAL | 🇺🇸 US | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: all 1946 K1 engines | SEP1GAL | 🇺🇸 US | Sierra Conventional Green Concentrate Low Toxic Option1 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.
11 Coolant / Antifreeze parts for the 1946 Allard K1 come from 4 brands — PEAK, VALVOLINE, FVP and 1 other brand. The "Popular" part is FVP GREEN5050GAL. Every part fits both the 3.6L 221cid V8 and the 3.9L 239cid V8.
The Economy section lists 2 options from PEAK and VALVOLINE — the catalog's value-priced group. PEAK BQA1GAL is listed in this group.
In the Premium grade, PEAK supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PEAK PKP1GAL.
In the Standard Replacement grade, PEAK, FVP, PRESTONE and 1 other brand supply 7 parts: built to original-equipment specification. A representative part number is FVP GREEN5050GAL.
Buying Cooling System Parts for a 1946 Allard K1
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.
- You do not need to pick an engine: every cooling system part on this page fits both the 3.6L 221cid V8 and the 3.9L 239cid V8.
- 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 .
Frequently Asked Questions
How many cooling system parts fit the 1946 Allard K1?
Our catalog currently lists 11 cooling system parts for the 1946 Allard K1 across 1 subcategory and 4 brands, covering both the 3.6L 221cid V8 and the 3.9L 239cid V8. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 1946 Allard K1 engines?
No. On this page every cooling system part fits both the 3.6L 221cid V8 and the 3.9L 239cid V8. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of cooling system problems on a 1946 Allard K1?
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 1946 Allard K1 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 1946 Allard K1?
Every part on this page already fits both the 3.6L 221cid V8 and the 3.9L 239cid V8. 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 1946 Allard K1
Cooling System Parts for Other Allard K1 Years
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