30 Cooling system parts are listed for the 1951 Fargo FO2 Pickup, in 6 part types, covering the 3.7L 228cid L6 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The cooling system system on the 1951 Fargo FO2 Pickup 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 Hose (6 parts) and Thermostat (3 parts). The other 3 part types cover the remaining 5 parts.
Every part on this page is matched to the 3.7L 228cid L6 — the only engine offered in the 1951 Fargo FO2 Pickup.
The most listed brands for 1951 Fargo FO2 Pickup cooling system parts are GATES (8 parts), PEAK (7 parts) and PRESTONE (6 parts), plus 5 more brands. Quality grades include Economy, Standard Replacement and Premium.
6 parts on this 1951 Fargo FO2 Pickup page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and ACDELCO 31637 (Radiator Hose). 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 | 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇨🇦 CA | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AFMAX | 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF3300 | 🇨🇦 CA | Prime Conventional Green 1 Gallon | View on Amazon |
| FVP | GREEN5050GAL | 🇨🇦 CA | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK | BMA1GAL | 🇨🇦 CA | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK | RUA1GAL | 🇨🇦 CA | Conventional Green1 Gallon | View on Amazon |
| PEAK | FFA1GAL | 🇨🇦 CA | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK | SEP1GAL | 🇨🇦 CA | 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.
16 Coolant / Antifreeze parts for the 1951 Fargo FO2 Pickup 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, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.
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, PRESTONE and FVP supply 6 parts: built to original-equipment specification. A representative part number is PRESTONE AF3300.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 31637 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
| GATES Popular | 25478 | 🇨🇦 CA | Flexible | View on Amazon |
| ACDELCO | 31740 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
| GATES | 26603 | 🇨🇦 CA | Flexible (Heavy-Duty) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 20001S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| GATES | 20121 | 🇨🇦 CA | Molded | 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.
6 Radiator Hose parts are listed for the 1951 Fargo FO2 Pickup, from ACDELCO and GATES. ACDELCO 31637 carries the "Popular" badge.
Economy: 4 parts, from ACDELCO and GATES. A representative part number is ACDELCO 31637.
The Standard Replacement section: 2 options from ACDELCO and GATES. ACDELCO 20001S is listed in this group.
This group includes ACDELCO 31637, GATES 25478 and ACDELCO 31740 and the remaining parts above.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 33036 | 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33038 | 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33039 | 🇨🇦 CA | OE Type | 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.
GATES supplies the 3 Thermostat parts for the 1951 Fargo FO2 Pickup.
Listed part numbers: GATES 33036, GATES 33038 and GATES 33039.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 35063 | 🇨🇦 CA | 2-1/2 (In) Inside DiameterWater Outlet Seal | View on Amazon |
| GATES | 33625 | 🇨🇦 CA | Thermostat Gasket - 2 1/4" | View on Amazon |
| VICTOR REINZ | 711353100 | 🇨🇦 CA | 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.
3 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1951 Fargo FO2 Pickup come from 3 brands — FEL-PRO, GATES and VICTOR REINZ.
This group includes FEL-PRO 35063, GATES 33625 and VICTOR REINZ 711353100.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 42554 | 🇨🇦 CA | 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.
One part is listed for the 1951 Fargo FO2 Pickup — GATES 42554.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VICTOR REINZ | 711407900 | 🇨🇦 CA | 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.
This group shows a single part: VICTOR REINZ 711407900.
Buying Cooling System Parts for a 1951 Fargo FO2 Pickup
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 3.7L 228cid L6 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 Hose .
Frequently Asked Questions
How many cooling system parts fit the 1951 Fargo FO2 Pickup?
Our catalog currently lists 30 cooling system parts for the 1951 Fargo FO2 Pickup across 6 subcategories and 8 brands, covering the 3.7L 228cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1951 Fargo FO2 Pickup?
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 1951 Fargo FO2 Pickup 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 1951 Fargo FO2 Pickup?
Every part on this page is matched to the 3.7L 228cid L6 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 1951 Fargo FO2 Pickup
Cooling System Parts for Other Fargo FO2 Pickup Years
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