This page lists 46 cooling system parts for the 1964 Triumph TR4, across 6 part types, covering both the 2.0L L4 and the 2.1L L4. Every part shows its brand, manufacturer part number and fitment notes.
On the 1964 Triumph TR4, 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. 37 parts of the 46 listed are Coolant / Antifreeze (16 parts), Thermostat (16 parts) and Radiator Cap (5 parts). The other 3 part types cover the remaining 9 parts.
The 1964 Triumph TR4 was sold with both the 2.0L L4 and the 2.1L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
11 brands supply cooling system parts for the 1964 Triumph TR4, led by MOTORAD (17 parts), PEAK (7 parts) and PRESTONE (5 parts), plus 8 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 1964 Triumph TR4. 10 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and MOTORAD T7 (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 Fits: 2.1L L4 | AF3055 | 🇺🇸 US | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: 2.1L L4 | MV5050GAL | 🇺🇸 US | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular Fits: 2.1L L4 | AF3100 | 🇺🇸 US | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK Fits: 2.1L L4 | BQA1GAL | 🇺🇸 US | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: 2.1L L4 | 719009 | 🇺🇸 US | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.1L L4 | ZXG051 | 🇺🇸 US | G05 Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: 2.1L L4 | AF2100 | 🇺🇸 US | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: 2.1L L4 | PKP1GAL | 🇺🇸 US | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: 2.1L L4 | PXA1GAL | 🇺🇸 US | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE Fits: 2.1L L4 | AFMAX | 🇺🇸 US | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 2.1L L4 | GREEN5050GAL | 🇺🇸 US | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK Fits: 2.1L L4 | BMA1GAL | 🇺🇸 US | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: 2.1L L4 | RUA1GAL | 🇺🇸 US | Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: 2.1L L4 | FFA1GAL | 🇺🇸 US | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK Fits: 2.1L L4 | SEP1GAL | 🇺🇸 US | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
| PRESTONE Fits: 2.1L L4 | 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 1964 Triumph TR4, 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.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 2.1L L4 | 12A01 | 🇺🇸 US 🇨🇦 CA | ProfessionalIncluded In Tester | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 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 1964 Triumph TR4, from ACDELCO and MOTORAD.
This group includes ACDELCO 12A01 and MOTORAD 3003.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.1L L4 | ST7 | 🇺🇸 US | Safety Lever | View on Amazon |
| SKP Fits: 2.1L L4 | SKST7 | 🇺🇸 US | with Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: 2.1L L4 | T7 | 🇺🇸 US | Standard | View on Amazon |
| CALORSTAT Fits: 2.1L L4 | RC0067 | 🇺🇸 US | PerformanceIncludes Seal | View on Amazon |
| GATES Fits: 2.1L L4 | 31524 | 🇺🇸 US | OE Type | 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.
5 Radiator Cap parts are listed for the 1964 Triumph TR4, from MOTORAD, SKP, CALORSTAT and 1 other brand. MOTORAD T7 carries the "Popular" badge.
The Locking Replacement section lists 2 options from MOTORAD and SKP — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST7 is listed in this group.
The Standard Replacement section: 3 options from MOTORAD, CALORSTAT and GATES. MOTORAD T7 is listed in this group.
This group includes MOTORAD T7, MOTORAD ST7 and SKP SKST7 and the remaining parts above.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 2.1L L4 | 31608 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
| CONTINENTAL Fits: 2.1L L4 | 52015 | 🇺🇸 US | FlexibleDoes Not include seals | View on Amazon |
| GATES Fits: 2.1L L4 | 25249 | 🇺🇸 US | Flexible | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 2.1L L4 | 20801 | 🇺🇸 US | Molded | View on Amazon |
| ACDELCO Fits: 2.1L L4 | 20075S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | 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.
5 Radiator Hose parts for the 1964 Triumph TR4 come from 3 brands — ACDELCO, GATES and CONTINENTAL. The "Popular" part is GATES 20801.
The Economy section: 3 options from ACDELCO, CONTINENTAL and GATES. ACDELCO 31608 is listed in this group.
Standard Replacement: 2 parts, from GATES and ACDELCO. A representative part number is GATES 20801.
Listed part numbers: GATES 20801, ACDELCO 31608 and CONTINENTAL 52015, plus the other parts above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.1L L4 | 300160 | 🇺🇸 US | Economy | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 300195 | 🇺🇸 US | Economy | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 300180 | 🇺🇸 US | Economy | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.1L L4 | 5200160 | 🇺🇸 US | Ultra Stat | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 5200180 | 🇺🇸 US | Ultra Stat | View on Amazon |
Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: 2.1L L4 | 2000160 | 🇺🇸 US | High Flow | View on Amazon |
| MOTORAD Popular Fits: 2.1L L4 | 2000180 | 🇺🇸 US | High Flow | View on Amazon |
| MOTORAD Fits: 2.1L L4 | MRD100 | 🇺🇸 US | Racing Thermostat | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 2.1L L4 | 7200180 | 🇺🇸 US | Fail-Safe | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 7200160 | 🇺🇸 US | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: 2.1L L4 | 200195 | 🇺🇸 US | Standard | View on Amazon |
| MOTORAD Popular Fits: 2.1L L4 | 200180 | 🇺🇸 US | Standard | View on Amazon |
| BECK/ARNLEY Fits: 2.1L L4 | 1430156 | 🇺🇸 US | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY Fits: 2.1L L4 | 1430149 | 🇺🇸 US | OE TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY Fits: 2.1L L4 | 1430131 | 🇺🇸 US | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| MOTORAD Fits: 2.1L L4 | 200160 | 🇺🇸 US | Standard | 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.
16 Thermostat parts for the 1964 Triumph TR4 come from 2 brands — MOTORAD and BECK/ARNLEY. The "Popular" part is MOTORAD 2000160.
The Economy section: 3 options from MOTORAD. MOTORAD 300160 is listed in this group.
Heavy Duty: 2 parts, from MOTORAD. A representative part number is MOTORAD 5200160.
The Performance section lists 3 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2000160 is listed in this group.
Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7200180.
Standard Replacement: 6 parts, from MOTORAD and BECK/ARNLEY. A representative part number is MOTORAD 200195.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 2.1L L4 | 0390001 | 🇺🇸 US | Thermostat Seal | View on Amazon |
| MOTORAD Fits: 2.1L L4 | MG38 | 🇺🇸 US | 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.
2 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1964 Triumph TR4, from BECK/ARNLEY and MOTORAD.
Part numbers include BECK/ARNLEY 0390001 and MOTORAD MG38.
Buying Cooling System Parts for a 1964 Triumph TR4
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. Every cooling system part here is 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 Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 1964 Triumph TR4?
Our catalog currently lists 46 cooling system parts for the 1964 Triumph TR4 across 6 subcategories and 11 brands, covering both the 2.0L L4 and the 2.1L L4. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 1964 Triumph TR4 engines?
Yes. Every cooling system part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 1964 Triumph TR4?
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 1964 Triumph TR4 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 1964 Triumph TR4?
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 1964 Triumph TR4
Cooling System Parts for Other Triumph TR4 Years
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