The 1956 Desoto Fireflite has 52 cooling system parts with verified fitment on this page — 8 part types and 14 brands, covering the 5.4L 330cid V8 engine. Each part includes a manufacturer part number and application notes.
The cooling system system on the 1956 Desoto Fireflite 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 (16 parts), Radiator Cap (12 parts) and Radiator Hose (8 parts). The other 5 part types cover the remaining 16 parts.
The 1956 Desoto Fireflite came with a single engine, the 5.4L 330cid V8, and every part is verified against it.
14 brands supply cooling system parts for the 1956 Desoto Fireflite, led by GATES (12 parts), MOTORAD (9 parts) and PEAK (7 parts), plus 11 more brands. Quality grades include Standard Replacement, Economy and Locking Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1956 Desoto Fireflite. 11 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and MOTORAD ST13 (Radiator Cap). 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 |
| PRESTONE Popular | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | 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 |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | GREEN5050GAL | 🇺🇸 US | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK | BMA1GAL | 🇺🇸 US | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK | RUA1GAL | 🇺🇸 US | Conventional Green1 Gallon | View on Amazon |
| PEAK | FFA1GAL | 🇺🇸 US | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK | SEP1GAL | 🇺🇸 US | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
| PRESTONE | 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 1956 Desoto Fireflite, from PEAK, PRESTONE, FVP 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, PRESTONE, PEAK 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.
The Standard Replacement section lists 6 options from PEAK, FVP and PRESTONE — built to original-equipment specification. FVP GREEN5050GAL is listed in this group.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 20038S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| DAYCO | 70158 | 🇺🇸 US | Curved | View on Amazon |
| GATES | 20563 | 🇺🇸 US | Molded | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
3 Coolant Hose / Pipe parts are listed for the 1956 Desoto Fireflite, from ACDELCO, DAYCO and GATES.
This group includes ACDELCO 20038S, DAYCO 70158 and GATES 20563.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31413 | 🇺🇸 US | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD | 3003 | 🇺🇸 US | StandardIncluded In Tester Kit | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
2 Cooling System Tester Adapter parts are listed for the 1956 Desoto Fireflite, from GATES and MOTORAD.
Part numbers include GATES 31413 and MOTORAD 3003.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | ST13 | 🇺🇸 US | Safety Lever | View on Amazon |
| GATES | 31511 | 🇺🇸 US | Safety Release Radiator Cap | View on Amazon |
| GATES | 31508 | 🇺🇸 US | Safety Release Radiator Cap | View on Amazon |
| MOTORAD | ST7 | 🇺🇸 US | Safety Lever | View on Amazon |
| SKP | SKST7 | 🇺🇸 US | with Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 31527 | 🇺🇸 US | OE Type | View on Amazon |
| MOTORAD Popular | T13 | 🇺🇸 US | Standard | View on Amazon |
| CALORSTAT | RC0067 | 🇺🇸 US | PerformanceIncludes Seal | View on Amazon |
| GATES | 31526 | 🇺🇸 US | OE Type | View on Amazon |
| MOTORAD | T7 | 🇺🇸 US | Standard | View on Amazon |
| SKP | SK10228 | 🇺🇸 US | Pressure Rating 7 psiwithout A.C. | View on Amazon |
| SKP | SK10229 | 🇺🇸 US | Pressure Rating 13 psiwith A.C. | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. 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.
12 Radiator Cap parts are listed for the 1956 Desoto Fireflite, from MOTORAD, GATES, SKP and 1 other brand. MOTORAD ST13 carries the "Popular" badge.
The Locking Replacement section lists 5 options from MOTORAD, GATES and SKP — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST13 is listed in this group.
The Standard Replacement section: 7 options from GATES, MOTORAD, SKP and 1 other brand. GATES 31527 is listed in this group.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 81331 | 🇺🇸 US | Flex Radiator Hose | View on Amazon |
| GATES Popular | 26502 | 🇺🇸 US | Flexible (Heavy-Duty) | View on Amazon |
| ACDELCO | 31701 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
| CONTINENTAL | 52816 | 🇺🇸 US | FlexibleHose 1 Length: 16.31 In | View on Amazon |
| CONTINENTAL | 52818 | 🇺🇸 US | FlexibleHose 1 Length: 18.81 In | View on Amazon |
| DAYCO | 81311 | 🇺🇸 US | Flex Radiator Hose | View on Amazon |
| GATES | 26501 | 🇺🇸 US | Flexible (Heavy-Duty) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 31700 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
8 Radiator Hose parts for the 1956 Desoto Fireflite come from 4 brands — DAYCO, GATES, ACDELCO and 1 other brand. The "Popular" part is DAYCO 81331.
The Economy section: 7 options from DAYCO, GATES, CONTINENTAL and 1 other brand. DAYCO 81331 is listed in this group.
Standard Replacement: 1 part, from ACDELCO. A representative part number is ACDELCO 31700.
This group includes DAYCO 81331, GATES 26502 and ACDELCO 31701 and the remaining parts above.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | TS52 | 🇺🇸 US | with Gauge | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
One part is listed for the 1956 Desoto Fireflite — STANDARD MOTOR PRODUCTS TS52.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 33036 | 🇨🇦 CA | OE Type | View on Amazon |
| GATES Popular | 33038 | 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33039 | 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 400580 | 🇺🇸 US | Includes Seal | View on Amazon |
| MOTORAD | 218160 | 🇺🇸 US | Includes Seal | View on Amazon |
| MOTORAD | 218180 | 🇺🇸 US | Includes Seal | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
6 Thermostat parts for the 1956 Desoto Fireflite come from 2 brands — GATES and MOTORAD. The "Popular" part is GATES 33036.
This group includes GATES 33036, GATES 33038 and GATES 33039 and the remaining parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 35063 | 🇺🇸 US | 2-1/2 (In) Inside DiameterWater Outlet Seal | View on Amazon |
| GATES | 33625 | 🇺🇸 US | Thermostat Gasket - 2 1/4" | View on Amazon |
| MOTORAD | MG40 | 🇺🇸 US | View on Amazon | |
| VICTOR REINZ | 711353100 | 🇺🇸 US | 2-1/2 IN I.D.with 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.
4 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1956 Desoto Fireflite, from FEL-PRO, GATES, MOTORAD and 1 other brand.
Part numbers include FEL-PRO 35063, GATES 33625 and MOTORAD MG40, among others listed above.
Buying Cooling System Parts for a 1956 Desoto Fireflite
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 5.4L 330cid 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 Radiator Cap .
Frequently Asked Questions
How many cooling system parts fit the 1956 Desoto Fireflite?
Our catalog currently lists 52 cooling system parts for the 1956 Desoto Fireflite across 8 subcategories and 14 brands, covering the 5.4L 330cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1956 Desoto Fireflite?
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 1956 Desoto Fireflite 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 1956 Desoto Fireflite?
Every part on this page is matched to the 5.4L 330cid 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 1956 Desoto Fireflite
Cooling System Parts for Other Desoto Fireflite Years
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