This page lists 130 cooling system parts for the 1997 Buick Riviera, across 20 part types, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Every part shows its brand, manufacturer part number and fitment notes.
The cooling system system on the 1997 Buick Riviera 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 (15 parts), Temperature Sender / Sensor (15 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (15 parts). The other 17 part types cover the remaining 85 parts.
The 1997 Buick Riviera was sold with both the 3.8L V6 and the 3.8L V6 Supercharged. 123 parts fit every engine; the other 7 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1997 Buick Riviera cooling system parts are MOTORAD (14 parts), GATES (9 parts) and ACDELCO (8 parts), plus 36 more brands. Quality grades include Standard Replacement, Economy and Premium.
27 parts on this 1997 Buick Riviera page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and AGILITY 8012536 (Radiator). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 1997 Riviera engines | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 1997 Riviera engines | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PEAK Fits: all 1997 Riviera engines | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| PRESTONE Fits: all 1997 Riviera engines | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Fits: all 1997 Riviera engines | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 1997 Riviera engines | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 1997 Riviera engines | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 1997 Riviera engines | PXA1GAL | 🇺🇸 US 🇨🇦 CA | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE Fits: all 1997 Riviera engines | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 1997 Riviera engines | ZXEL1 | 🇺🇸 US 🇨🇦 CA | Dex-Cool Orange1 Gallon | View on Amazon |
| ACDELCO Fits: all 1997 Riviera engines | 105027 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended LifeDexcool (with DE-Ionized Water) (with Bitterant) 1 Gallon | View on Amazon |
| AISIN Fits: all 1997 Riviera engines | ACD005 | 🇺🇸 US 🇨🇦 CA | OrangeOAT | View on Amazon |
| FVP Fits: all 1997 Riviera engines | DEX5050GAL | 🇺🇸 US 🇨🇦 CA | Extended Life Blend1 Gallon | View on Amazon |
| PRESTONE Fits: all 1997 Riviera engines | AF3400 | 🇺🇸 US 🇨🇦 CA | Prime OrangeOrange Compatible | View on Amazon |
| PRESTONE Fits: all 1997 Riviera engines | AF850 | 🇺🇸 US 🇨🇦 CA | DEX-Cool Extended Life1 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.
15 Coolant / Antifreeze parts for the 1997 Buick Riviera come from 6 brands — PRESTONE, PEAK, FVP and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
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, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
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, PRESTONE, VALVOLINE, ACDELCO and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE ZXEL1.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: all 1997 Riviera engines | 24503423 | 🇺🇸 US 🇨🇦 CA | to lower intake manifold.Thermostat Bypass | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
This group shows a single part: GM GENUINE 24503423.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: all 1997 Riviera engines | 36021 | 🇺🇸 US 🇨🇦 CA | Water Bypass Seal | View on Amazon |
| GM GENUINE Fits: all 1997 Riviera engines | 1534066 | 🇺🇸 US 🇨🇦 CA | 0.674" Diameter | View on Amazon |
| GM GENUINE Fits: 3.8L V6 Supercharged | 24501563 | 🇺🇸 US 🇨🇦 CA | Fits OutletThrottle Body Heater Hos | View on Amazon |
| MAHLE / CLEVITE Fits: all 1997 Riviera engines | C31274 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
This table covers the seals at the Coolant Hose / Pipe. 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 Coolant Hose / Pipe Seal parts are listed for the 1997 Buick Riviera, from GM GENUINE, FEL-PRO and MAHLE / CLEVITE. 3 parts fit every engine; the other 1 is engine-specific.
Part numbers include FEL-PRO 36021, GM GENUINE 1534066 and GM GENUINE 24501563, among others listed above.
Coolant Hose Connector / Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: all 1997 Riviera engines | 86500 | 🇺🇸 US 🇨🇦 CA | Coolant Coupling | View on Amazon |
This table covers the Coolant Hose Connector flanges.
This group shows a single part: FOUR SEASONS 86500.
Coolant Hose Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 1997 Riviera engines | 961364 | 🇺🇸 US 🇨🇦 CA | Air Box Clip | View on Amazon |
This table covers the Coolant Hose retainers and clips.
This group shows a single part: DORMAN 961364.
Coolant Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FAMOUS BRAND Fits: all 1997 Riviera engines | SBA3759 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: all 1997 Riviera engines | 1712533 | 🇺🇸 US 🇨🇦 CA | Engine Coolant Level Sensor | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1997 Riviera engines | FLS17 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: all 1997 Riviera engines | 5S1453 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
4 Coolant Level Sensor parts for the 1997 Buick Riviera come from 4 brands — FAMOUS BRAND, GPD, STANDARD MOTOR PRODUCTS and 1 other brand. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
Listed part numbers: FAMOUS BRAND SBA3759, GPD 1712533 and STANDARD MOTOR PRODUCTS FLS17, plus the other parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 1997 Riviera engines | 54217 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the caps on the overflow / expansion tank. 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.
One part is listed for the 1997 Buick Riviera — DORMAN 54217.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS Fits: all 1997 Riviera engines | 16789 | 🇺🇸 US 🇨🇦 CA | Better Control | View on Amazon |
| US MOTOR WORKS Fits: all 1997 Riviera engines | 16795 | 🇺🇸 US 🇨🇦 CA | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
US MOTOR WORKS supplies both parts for the 1997 Buick Riviera. All of them fit every engine offered in the 1997 Riviera.
This group includes US MOTOR WORKS 16789 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: all 1997 Riviera engines | 12A01 | 🇺🇸 US 🇨🇦 CA | ProfessionalIncluded In Tester | View on Amazon |
| GATES Fits: all 1997 Riviera engines | 31413 | 🇺🇸 US 🇨🇦 CA | Cooling System PressureRadiator Cap | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 3003 | 🇺🇸 US 🇨🇦 CA | StandardIncluded In Tester Kit | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
3 Cooling System Tester Adapter parts for the 1997 Buick Riviera come from 3 brands — ACDELCO, GATES and MOTORAD. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
Part numbers include ACDELCO 12A01, GATES 31413 and MOTORAD 3003.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 1997 Riviera engines | 1777C | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| TECHPRO Fits: all 1997 Riviera engines | GM3010135 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AGILITY Popular Fits: all 1997 Riviera engines | 8012536 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: all 1997 Riviera engines | RAD2536 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC Fits: all 1997 Riviera engines | 2536 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
5 Radiator parts for the 1997 Buick Riviera come from 5 brands — GPD, TECHPRO, AGILITY and 2 other brands. The "Popular" part is AGILITY 8012536. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
The Economy section: 2 options from GPD and TECHPRO. GPD 1777C is listed in this group.
Standard Replacement: 3 parts, from AGILITY, FVP and OSC. A representative part number is AGILITY 8012536.
This group includes AGILITY 8012536, GPD 1777C and TECHPRO GM3010135 and the remaining parts above.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: all 1997 Riviera engines | RC0214 | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 2 seals | View on Amazon |
| CALORSTAT Fits: all 1997 Riviera engines | RC0217 | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 2 seals | View on Amazon |
| GATES Fits: all 1997 Riviera engines | 31516 | 🇺🇸 US 🇨🇦 CA | Safety Release Radiator Cap | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | ST16V | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1997 Riviera engines | RC27 | 🇺🇸 US 🇨🇦 CA | GM Original Equipmentwith Handle, with Turning Ears | View on Amazon |
| GATES Popular Fits: all 1997 Riviera engines | 31523 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| CALORSTAT Fits: all 1997 Riviera engines | RC0061 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | T16V | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| SKP Fits: all 1997 Riviera engines | SK10231 | 🇺🇸 US 🇨🇦 CA | Pressure Rating 16 psi | 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.
9 Radiator Cap parts for the 1997 Buick Riviera come from 5 brands — CALORSTAT, GATES, MOTORAD and 2 other brands. The "Popular" part is ACDELCO RC27. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
In the Locking Replacement grade, CALORSTAT, GATES and MOTORAD supply 4 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is CALORSTAT RC0214.
Standard Replacement: 5 parts, from ACDELCO, GATES, CALORSTAT and 2 other brands. A representative part number is ACDELCO RC27.
Part numbers include ACDELCO RC27, CALORSTAT RC0214 and CALORSTAT RC0217, among others listed above.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: all 1997 Riviera engines | GM3115149 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC Fits: all 1997 Riviera engines | FA50310C | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
2 Radiator Fan Assembly parts are listed for the 1997 Buick Riviera, from TECHPRO and UAC. All of them fit every engine offered in the 1997 Riviera.
Economy: 1 part, from TECHPRO. A representative part number is TECHPRO GM3115149.
The Standard Replacement section: 1 option from UAC. UAC FA50310C is listed in this group.
This group includes TECHPRO GM3115149 and UAC FA50310C.
Radiator Fan Motor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Popular Fits: all 1997 Riviera engines | 35656 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
| FOUR SEASONS Popular Fits: all 1997 Riviera engines | 35380 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| ACDELCO Fits: all 1997 Riviera engines | 1580033 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| GPD Fits: all 1997 Riviera engines | 2311414 | 🇺🇸 US 🇨🇦 CA | RH | View on Amazon |
| GPD Fits: all 1997 Riviera engines | 2311317 | 🇺🇸 US 🇨🇦 CA | Driver Side | View on Amazon |
| TYC Fits: all 1997 Riviera engines | 630070 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| VDO / CONTINENTAL Fits: all 1997 Riviera engines | PM517 | 🇺🇸 US 🇨🇦 CA | Passenger Side | View on Amazon |
| VDO / CONTINENTAL Fits: all 1997 Riviera engines | PM538 | 🇺🇸 US 🇨🇦 CA | Motor Diameter: 3.250 In | View on Amazon |
This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.
8 Radiator Fan Motor parts for the 1997 Buick Riviera come from 5 brands — FOUR SEASONS, GPD, VDO / CONTINENTAL and 2 other brands. The "Popular" part is FOUR SEASONS 35656. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
This group includes FOUR SEASONS 35656, FOUR SEASONS 35380 and ACDELCO 1580033 and the remaining parts above.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: all 1997 Riviera engines | 71852 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular Fits: all 1997 Riviera engines | 21361 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO Fits: all 1997 Riviera engines | 24142L | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO Fits: all 1997 Riviera engines | 24326L | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL Fits: all 1997 Riviera engines | 61692 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: all 1997 Riviera engines | 62152 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO Fits: all 1997 Riviera engines | 71851 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Fits: all 1997 Riviera engines | 22154 | 🇺🇸 US 🇨🇦 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.
8 Radiator Hose parts are listed for the 1997 Buick Riviera, from DAYCO, GATES, ACDELCO and 1 other brand. DAYCO 71852 carries the "Popular" badge. All of them fit every engine offered in the 1997 Riviera.
Part numbers include DAYCO 71852, GATES 21361 and ACDELCO 24142L, among others listed above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 1997 Riviera engines | 2CTS0002 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 1997 Riviera engines | TX66T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: all 1997 Riviera engines | CTS43 | 🇺🇸 US 🇨🇦 CA | with 3 Pin Terminals | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: all 1997 Riviera engines | 21191039 | 🇺🇸 US 🇨🇦 CA | Full Service KitConnector Shape: Circle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 3.8L V6 Supercharged | 1551107 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| FOUR SEASONS Popular Fits: 3.8L V6 | 36445 | 🇺🇸 US 🇨🇦 CA | Round Connector | View on Amazon |
| FOUR SEASONS Popular Fits: 3.8L V6 Supercharged | 36403 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Popular Fits: all 1997 Riviera engines | 213815 | 🇺🇸 US 🇨🇦 CA | 3 blade terminalwith Indicator Switch | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 1997 Riviera engines | TX66 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: all 1997 Riviera engines | 1580743 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DELPHI Fits: all 1997 Riviera engines | TS10032 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Fits: all 1997 Riviera engines | EF0004 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| ROSTRA Fits: all 1997 Riviera engines | 680014 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| WALKER PRODUCTS Fits: all 1997 Riviera engines | 2111039 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS Fits: all 1997 Riviera engines | 1T1043 | 🇺🇸 US 🇨🇦 CA | with 3 Blade Terminalswith 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.
15 Temperature Sender / Sensor parts for the 1997 Buick Riviera come from 12 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, FOUR SEASONS and 9 other brands. The "Popular" part is ACDELCO 1551107. 12 parts fit every engine; the other 3 are engine-specific.
The Economy section: 3 options from HOLSTEIN, STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. HOLSTEIN 2CTS0002 is listed in this group.
The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 21191039 is listed in this group.
Standard Replacement: 11 parts, from FOUR SEASONS, ACDELCO, GM GENUINE and 7 other brands. A representative part number is ACDELCO 1551107.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular Fits: all 1997 Riviera engines | 5239192 | 🇺🇸 US 🇨🇦 CA | Ultra Stat | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 5167KTUS | 🇺🇸 US 🇨🇦 CA | Includes housing, Ultra Stat thermostat and sealKit | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: all 1997 Riviera engines | 7239192 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 7239180 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 5167KTFS | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes Housing, Gasket and Seal | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: all 1997 Riviera engines | 33429 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GM GENUINE Popular Fits: all 1997 Riviera engines | 131115 | 🇺🇸 US 🇨🇦 CA | Includes GasketOE Temperature | View on Amazon |
| AISIN Fits: all 1997 Riviera engines | THRGM0006 | 🇺🇸 US 🇨🇦 CA | Includes Thermostat Seal | View on Amazon |
| CALORSTAT Fits: all 1997 Riviera engines | TH332882 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 239180 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 239192 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | 5167KT | 🇺🇸 US 🇨🇦 CA | Includes Housing, Thermostat, Gasket and SealKit | 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.
12 Thermostat parts are listed for the 1997 Buick Riviera, from MOTORAD, GATES, GM GENUINE and 2 other brands. MOTORAD 5239192 carries the "Popular" badge. All of them fit every engine offered in the 1997 Riviera.
The Heavy Duty section lists 2 options from MOTORAD — rated for severe service. MOTORAD 5239192 is listed in this group.
The Premium section: 3 options from MOTORAD. MOTORAD 7239192 is listed in this group.
The Standard Replacement section: 7 options from MOTORAD, GATES, GM GENUINE and 2 other brands. GATES 33429 is listed in this group.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: all 1997 Riviera engines | 35666 | 🇺🇸 US 🇨🇦 CA | 1.560 (In) Inside DiameterThermostat Seal | View on Amazon |
| GM GENUINE Popular Fits: all 1997 Riviera engines | 24506985 | 🇺🇸 US 🇨🇦 CA | Outside Diameter 1.84"Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE Popular Fits: 3.8L V6 | C31349 | 🇺🇸 US 🇨🇦 CA | Beaded Paper | View on Amazon |
| MOTORAD Popular Fits: all 1997 Riviera engines | MG183 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX Fits: all 1997 Riviera engines | AWO2069 | 🇺🇸 US 🇨🇦 CA | Thermostat HousingThermostat Seal | View on Amazon |
| APEX Fits: all 1997 Riviera engines | AWO2055 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| FEL-PRO Fits: all 1997 Riviera engines | 35595 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Fits: all 1997 Riviera engines | 33609 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal - 1 9/16" x 1 41/64" x 17/64" (Grooved, Molded) | View on Amazon |
| GATES Fits: 3.8L V6 Supercharged | 33643 | 🇺🇸 US 🇨🇦 CA | Thermostat Gasket - 1 19/32" | View on Amazon |
| MAHLE / CLEVITE Fits: all 1997 Riviera engines | C31227 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| MAHLE / CLEVITE Fits: 3.8L V6 Supercharged | C31271 | 🇺🇸 US 🇨🇦 CA | Beaded Paper | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | MG366 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VICTOR REINZ Fits: all 1997 Riviera engines | 711355600 | 🇺🇸 US 🇨🇦 CA | Fiber | View on Amazon |
| VICTOR REINZ Fits: all 1997 Riviera engines | 711354900 | 🇺🇸 US 🇨🇦 CA | Improved Design | View on Amazon |
| VICTOR REINZ Fits: all 1997 Riviera engines | 711424100 | 🇺🇸 US 🇨🇦 CA | Water Bypass | 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.
15 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1997 Buick Riviera come from 7 brands — MAHLE / CLEVITE, VICTOR REINZ, FEL-PRO and 4 other brands. The "Popular" part is FEL-PRO 35666. 12 parts fit every engine; the other 3 are engine-specific.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 1997 Riviera engines | 9022001 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| GPD Fits: all 1997 Riviera engines | 8241409 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS Fits: all 1997 Riviera engines | 85167 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
| MOTORAD Fits: all 1997 Riviera engines | CH5167 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
4 Thermostat Housing / Water Outlet parts are listed for the 1997 Buick Riviera, from DORMAN, GPD, FOUR SEASONS and 1 other brand. All of them fit every engine offered in the 1997 Riviera.
Economy: 2 parts, from DORMAN and GPD. A representative part number is DORMAN 9022001.
The Standard Replacement section: 2 options from FOUR SEASONS and MOTORAD. FOUR SEASONS 85167 is listed in this group.
Listed part numbers: DORMAN 9022001, GPD 8241409 and FOUR SEASONS 85167, plus the other parts above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS Popular Fits: all 1997 Riviera engines | US5075 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP Fits: all 1997 Riviera engines | US5075 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: all 1997 Riviera engines | SK1301780 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WJB / INMOTION PARTS Fits: all 1997 Riviera engines | WU5075 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1997 Riviera engines | 252693 | 🇺🇸 US 🇨🇦 CA | GoldDoes Not Include Mount Bolts | View on Amazon |
| GMB Popular Fits: all 1997 Riviera engines | 1301780 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AISIN Fits: all 1997 Riviera engines | WPGM607V | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DAYCO Fits: all 1997 Riviera engines | DP1927 | 🇺🇸 US 🇨🇦 CA | Standard Gasket | View on Amazon |
| DAYCO Fits: all 1997 Riviera engines | DP961 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Fits: all 1997 Riviera engines | 42097 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: all 1997 Riviera engines | 251718 | 🇺🇸 US 🇨🇦 CA | with Gasket | 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.
11 Water Pump parts are listed for the 1997 Buick Riviera, from DAYCO, US MOTOR WORKS, FVP and 7 other brands. US MOTOR WORKS US5075 carries the "Popular" badge. All of them fit every engine offered in the 1997 Riviera.
Economy: 4 parts, from US MOTOR WORKS, FVP, SKP and 1 other brand. A representative part number is US MOTOR WORKS US5075.
The Standard Replacement section: 7 options from DAYCO, ACDELCO, GMB and 3 other brands. ACDELCO 252693 is listed in this group.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular Fits: all 1997 Riviera engines | 35351 | 🇺🇸 US 🇨🇦 CA | To BlockExcept Pump Stamped Metal Gasket Only | View on Amazon |
| FEL-PRO Popular Fits: all 1997 Riviera engines | 35804 | 🇺🇸 US 🇨🇦 CA | To BlockPump stamped "Metal gasket only" | View on Amazon |
| APEX Fits: all 1997 Riviera engines | AWP3003 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| APEX Fits: all 1997 Riviera engines | AWP3146 | 🇺🇸 US 🇨🇦 CA | Pump Stamped "Metal Gasket. Only" | View on Amazon |
| GM GENUINE Fits: all 1997 Riviera engines | 2512047 | 🇺🇸 US 🇨🇦 CA | with Pump Casting 125869482nd Design | View on Amazon |
| MAHLE / CLEVITE Fits: all 1997 Riviera engines | K30793 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| MAHLE / CLEVITE Fits: all 1997 Riviera engines | K32493 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ Fits: all 1997 Riviera engines | 711467500 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| VICTOR REINZ Fits: all 1997 Riviera engines | 711470000 | 🇺🇸 US 🇨🇦 CA | Pump Stamped "Metal Gasket Only"Metal | 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.
9 Water Pump Gasket parts for the 1997 Buick Riviera come from 5 brands — FEL-PRO, APEX, MAHLE / CLEVITE and 2 other brands. The "Popular" part is FEL-PRO 35351. Every part fits both the 3.8L V6 and the 3.8L V6 Supercharged.
Listed part numbers: FEL-PRO 35351, FEL-PRO 35804 and APEX AWP3003, plus the other parts above.
Buying Cooling System Parts for a 1997 Buick Riviera
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. Some cooling system parts fit every engine; others are 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 Temperature Sender / Sensor .
Frequently Asked Questions
How many cooling system parts fit the 1997 Buick Riviera?
Our catalog currently lists 130 cooling system parts for the 1997 Buick Riviera across 20 subcategories and 39 brands, covering both the 3.8L V6 and the 3.8L V6 Supercharged. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 1997 Buick Riviera engines?
Some do. 123 parts fit every engine; the other 7 are engine-specific. Each row (and the filter at the top) shows which. 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 1997 Buick Riviera?
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 1997 Buick Riviera 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 1997 Buick Riviera?
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 1997 Buick Riviera
Cooling System Parts for Other Buick Riviera Years
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