The 1976 Triumph TR6 has 82 cooling system parts with verified fitment on this page — 9 part types and 18 brands, covering the 2.5L L6 engine. Each part includes a manufacturer part number and application notes.
On the 1976 Triumph TR6, 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 Thermostat (28 parts), Coolant / Antifreeze (16 parts) and Radiator Hose (14 parts). The other 6 part types cover the remaining 24 parts.
Every part on this page is matched to the 2.5L L6 — the only engine offered in the 1976 Triumph TR6.
The most listed brands for 1976 Triumph TR6 cooling system parts are MOTORAD (17 parts), ÜRO PARTS (15 parts) and CALORSTAT (8 parts), plus 15 more brands. Quality grades include Standard Replacement, Economy and Premium.
17 parts on this 1976 Triumph TR6 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and ÜRO PARTS HK42 (Coolant Hose Kit). 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 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA | Global Lifetime1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | GREEN5050GAL | 🇺🇸 US 🇨🇦 CA | Low Silicate Blend1 Gallon | View on Amazon |
| PEAK | BMA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Conventional Green1 Gallon | View on Amazon |
| PEAK | RUA1GAL | 🇺🇸 US 🇨🇦 CA | Conventional Green1 Gallon | View on Amazon |
| PEAK | FFA1GAL | 🇺🇸 US 🇨🇦 CA | Full Force Conventional Green1 Gallon | View on Amazon |
| PEAK | SEP1GAL | 🇺🇸 US 🇨🇦 CA | Sierra Conventional Green Concentrate Low Toxic Option1 Gallon | View on Amazon |
| PRESTONE | AF3300 | 🇺🇸 US 🇨🇦 CA | 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 for the 1976 Triumph TR6 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, VALVOLINE supplies 1 part: rated for severe service. A representative part number is VALVOLINE ZXG051.
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, FVP and PRESTONE supply 6 parts: built to original-equipment specification. A representative part number is FVP GREEN5050GAL.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 157689 | 🇺🇸 US 🇨🇦 CA | Standard black hose | View on Amazon |
| ÜRO PARTS | 157689G | 🇺🇸 US 🇨🇦 CA | Hose Color Green | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
2 Coolant Hose / Pipe parts for the 1976 Triumph TR6 come from ÜRO PARTS.
Part numbers include ÜRO PARTS 157689 and ÜRO PARTS 157689G.
Coolant Hose Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Popular | HK42 | 🇺🇸 US 🇨🇦 CA | 9 Piece Kit Includes: (1) UKC5238 (1) GRH392 (1) GRH393 (1) 157689 (1) 623284 (1) 623285 (1) 627310 (1) GZA1336 (1) GZA1002 | View on Amazon |
| ÜRO PARTS Popular | HK39G | 🇺🇸 US 🇨🇦 CA | 10 Piece Kit Includes: (1) 154149G (1) GZA971G (1) GRH392G (1) GRH393G (1) 157689G (1) 623284 (1) 623285 (1) 627310G (1) GZA1336G (1) GZA1002G | View on Amazon |
| ÜRO PARTS | HK41 | 🇺🇸 US 🇨🇦 CA | 10 Piece Kit Includes: (1) 158289 (1) 158290 (1) GRH392 (1) GRH393 (1) 157689 (1) 623284 (1) 623285 (1) 627310 (1) GZA1336 (1) GZA1002 | View on Amazon |
| ÜRO PARTS | HK39 | 🇺🇸 US 🇨🇦 CA | 10 Piece Kit Includes: (1) 154149 (1) GZA971 (1) GRH392 (1) GRH393 (1) 157689 (1) 623284 (1) 623285 (1) 627310 (1) GZA1336 (1) GZA1002 | View on Amazon |
| ÜRO PARTS | HK42G | 🇺🇸 US 🇨🇦 CA | 9 Piece Kit Includes: (1) UKC5238G (1) GRH392G (1) GRH393G (1) 157689G (1) 623284 (1) 623285 (1) 627310G (1) GZA1336G (1) GZA1002G | View on Amazon |
| ÜRO PARTS | HK41G | 🇺🇸 US 🇨🇦 CA | 10 Piece Kit Includes: (1) 158289G (1) 158290G (1) GRH392G (1) GRH393G (1) 157689G (1) 623284 (1) 623285 (1) 627310G (1) GZA1336G (1) GZA1002G | View on Amazon |
This table covers the Coolant Hose kits.
ÜRO PARTS supplies the 6 Coolant Hose Kit parts for the 1976 Triumph TR6. ÜRO PARTS HK42 carries the "Popular" badge.
Part numbers include ÜRO PARTS HK42, ÜRO PARTS HK39G and ÜRO PARTS HK41, among others listed above.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 12A01 | 🇺🇸 US 🇨🇦 CA | ProfessionalIncluded In Tester | View on Amazon |
| MOTORAD | 3003 | 🇺🇸 US 🇨🇦 CA | 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 for the 1976 Triumph TR6 come from 2 brands — ACDELCO and MOTORAD.
Listed part numbers: ACDELCO 12A01 and MOTORAD 3003.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST13 | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
| SKP | SKST13 | 🇺🇸 US 🇨🇦 CA | Relief Pressure 13 lbs | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0052 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD | T13 | 🇺🇸 US 🇨🇦 CA | Standard | 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.
4 Radiator Cap parts for the 1976 Triumph TR6 come from 3 brands — MOTORAD, SKP and CALORSTAT.
In the Locking Replacement grade, MOTORAD and SKP supply 2 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST13.
Standard Replacement: 2 parts, from CALORSTAT and MOTORAD. A representative part number is CALORSTAT RC0052.
Part numbers include MOTORAD ST13, SKP SKST13 and CALORSTAT RC0052, among others listed above.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 81041 | 🇺🇸 US 🇨🇦 CA | Flex Radiator Hose | View on Amazon |
| CONTINENTAL | 52015 | 🇺🇸 US 🇨🇦 CA | FlexibleDoes Not include seals | View on Amazon |
| GATES | 25252 | 🇺🇸 US 🇨🇦 CA | Flexible | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 70112 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 21942 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 20260S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 60425 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ÜRO PARTS | GRH392 | 🇺🇸 US 🇨🇦 CA | LowerHose Color Black | View on Amazon |
| ÜRO PARTS | GRH393 | 🇺🇸 US 🇨🇦 CA | LowerCurved Hose | View on Amazon |
| ÜRO PARTS | GRH392G | 🇺🇸 US 🇨🇦 CA | LowerHose Color Green | View on Amazon |
| ÜRO PARTS | GRH393G | 🇺🇸 US 🇨🇦 CA | LowerHose Color Green | View on Amazon |
| ÜRO PARTS | UKC5238 | 🇺🇸 US 🇨🇦 CA | UpperHose Color Black | View on Amazon |
| ÜRO PARTS | UKC5238G | 🇺🇸 US 🇨🇦 CA | UpperHose Color Green | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 31004 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalStraight | 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.
14 Radiator Hose parts are listed for the 1976 Triumph TR6, from ÜRO PARTS, DAYCO, CONTINENTAL and 2 other brands. DAYCO 81041 carries the "Popular" badge.
Economy: 3 parts, from DAYCO, CONTINENTAL and GATES. A representative part number is DAYCO 81041.
The Standard Replacement section: 10 options from ÜRO PARTS, DAYCO, GATES and 2 other brands. DAYCO 70112 is listed in this group.
The Universal Hose (Straight, Bulk) section lists 1 option from ACDELCO — grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. ACDELCO 31004 is listed in this group.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | DAC2583 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 2011110 | 🇺🇸 US 🇨🇦 CA | Switch | View on Amazon |
| ROSTRA | 680118 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| STANDARD MOTOR PRODUCTS | TS226 | 🇺🇸 US 🇨🇦 CA | with Gauge | View on Amazon |
| WELLS | 1T1159 | 🇺🇸 US 🇨🇦 CA | 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.
5 Temperature Sender / Sensor parts for the 1976 Triumph TR6 come from 5 brands — ÜRO PARTS, BECK/ARNLEY, ROSTRA and 2 other brands. The "Popular" part is BECK/ARNLEY 2011110.
The Economy section: 1 option from ÜRO PARTS. ÜRO PARTS DAC2583 is listed in this group.
Standard Replacement: 4 parts, from BECK/ARNLEY, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. A representative part number is BECK/ARNLEY 2011110.
Part numbers include BECK/ARNLEY 2011110, ÜRO PARTS DAC2583 and ROSTRA 680118, among others listed above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 300160 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
| MOTORAD Popular | 300180 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
| GATES | 33508 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
| GATES | 33509 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
| MOTORAD | 300195 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 5200160 | 🇺🇸 US 🇨🇦 CA | Ultra Stat | View on Amazon |
| MOTORAD | 5200180 | 🇺🇸 US 🇨🇦 CA | Ultra Stat | View on Amazon |
Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 2000160 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
| MOTORAD Popular | 2000180 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
| MOTORAD | MRD100 | 🇺🇸 US 🇨🇦 CA | Racing Thermostat | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7200180 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
| MOTORAD | 7200160 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 200195 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD Popular | 200180 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| BECK/ARNLEY | 1430156 | 🇺🇸 US 🇨🇦 CA | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY | 1430149 | 🇺🇸 US 🇨🇦 CA | OE TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY | 1430131 | 🇺🇸 US 🇨🇦 CA | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| CALORSTAT | TH137870 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT | TH137883 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT | THF137873 | 🇺🇸 US 🇨🇦 CA | High EfficiencyLarger Main Valve Seat | View on Amazon |
| CALORSTAT | THF137882 | 🇺🇸 US 🇨🇦 CA | High EfficiencyLarger Main Valve Seat | View on Amazon |
| CALORSTAT | TH137896 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT | TH596271 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT | TH596292J | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 6 Rubber & Paper Gasket & O-Ring | View on Amazon |
| GATES | 33009 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33006 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33008 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 200160 | 🇺🇸 US 🇨🇦 CA | 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.
28 Thermostat parts are listed for the 1976 Triumph TR6, from MOTORAD, CALORSTAT, GATES and 1 other brand. MOTORAD 300160 carries the "Popular" badge. They are grouped as Economy, Heavy Duty, Performance, Premium and Standard Replacement, with Standard Replacement the largest group at 16 parts from CALORSTAT, MOTORAD, BECK/ARNLEY and 1 other brand.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 33624 | 🇺🇸 US 🇨🇦 CA | Thermostat Gasket - 1 27/32" | View on Amazon |
| BECK/ARNLEY | 0390001 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| FEL-PRO | 25538 | 🇺🇸 US 🇨🇦 CA | Upper | View on Amazon |
| MOTORAD | MG38 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ | 511004200 | 🇺🇸 US 🇨🇦 CA | 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.
5 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1976 Triumph TR6 come from 5 brands — GATES, BECK/ARNLEY, FEL-PRO and 2 other brands. The "Popular" part is GATES 33624.
This group includes GATES 33624, BECK/ARNLEY 0390001 and FEL-PRO 25538 and the remaining parts above.
Buying Cooling System Parts for a 1976 Triumph TR6
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 2.5L 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: Thermostat and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 1976 Triumph TR6?
Our catalog currently lists 82 cooling system parts for the 1976 Triumph TR6 across 9 subcategories and 18 brands, covering the 2.5L L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1976 Triumph TR6?
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 1976 Triumph TR6 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 1976 Triumph TR6?
Every part on this page is matched to the 2.5L 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 1976 Triumph TR6
Cooling System Parts for Other Triumph TR6 Years
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