1993 Buick Roadmaster Cooling System Parts

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. Read more

18 Coolant / Antifreeze parts for the 1993 Buick Roadmaster 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 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, VALVOLINE and 1 other brand supply 9 parts: built to original-equipment specification. A representative part number is FVP DEX5050GAL.

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. Read more

2 Coolant Reservoir Cap parts are listed for the 1993 Buick Roadmaster, from DORMAN and MOTORAD.

Part numbers include DORMAN 54217 and MOTORAD T31.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 1993 Buick Roadmaster.

Listed part numbers: US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

This table covers the adapters used to pressure-test this cooling system. Read more

3 Cooling System Tester Adapter parts for the 1993 Buick Roadmaster come from 3 brands — ACDELCO, GATES and MOTORAD.

Listed part numbers: ACDELCO 12A01, GATES 31413 and MOTORAD 3003.

This table covers the Hose clamps. Read more

This group shows a single part: GM GENUINE 12338017.

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. Read more

14 Radiator parts for the 1993 Buick Roadmaster come from 7 brands — LILAND GLOBAL, OSC, SPECTRA PREMIUM and 4 other brands. The "Popular" part is LILAND GLOBAL 1211AA.

The Economy section: 1 option from GPD. GPD 1212C is listed in this group.

The Premium (All Aluminum Construction) section lists 3 options from LILAND GLOBAL — a step above OE specification in materials, tolerances or warranty terms. LILAND GLOBAL 1211AA is listed in this group.

Standard Replacement: 10 parts, from OSC, SPECTRA PREMIUM, AGILITY and 2 other brands. A representative part number is SPECTRA PREMIUM CU1210.

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. Read more

8 Radiator Cap parts for the 1993 Buick Roadmaster come from 5 brands — CALORSTAT, GATES, MOTORAD and 2 other brands. The "Popular" part is ACDELCO RC27.

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: 4 parts, from ACDELCO, GATES, MOTORAD and 1 other brand. A representative part number is ACDELCO RC27.

Listed part numbers: ACDELCO RC27, CALORSTAT RC0214 and CALORSTAT RC0217, plus the other parts above.

This table covers the petcocks used to drain the radiator. Read more

One part is listed for the 1993 Buick Roadmaster — DORMAN 43177.

This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc. Read more

14 Radiator Fan Clutch parts for the 1993 Buick Roadmaster come from 8 brands — FOUR SEASONS, HAYDEN, GMB and 5 other brands. The "Popular" part is HAYDEN 2734.

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. Read more

3 Radiator Fan Motor parts for the 1993 Buick Roadmaster come from 3 brands — FOUR SEASONS, GPD and TYC.

Listed part numbers: FOUR SEASONS 35378, GPD 2311317 and TYC 630070.

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. Read more

12 Radiator Hose parts are listed for the 1993 Buick Roadmaster, from GATES, ACDELCO, CONTINENTAL and 1 other brand. ACDELCO 24111L carries the "Popular" badge.

Economy: 1 part, from GATES. A representative part number is GATES 25262.

The Standard Replacement section: 11 options from ACDELCO, GATES, CONTINENTAL and 1 other brand. ACDELCO 24111L is listed in this group.

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. Read more

19 Temperature Sender / Sensor parts for the 1993 Buick Roadmaster come from 16 brands — NTK, STANDARD MOTOR PRODUCTS, WELLS and 13 other brands. The "Popular" part is NTK EF0008.

The Economy section: 7 options from NTK, STANDARD MOTOR PRODUCTS, GPD and 4 other brands. NTK EF0008 is listed in this group.

Standard Replacement: 12 parts, from WELLS, ACDELCO, GM GENUINE and 8 other brands. A representative part number is ACDELCO 1551107.

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. Read more

30 Thermostat parts are listed for the 1993 Buick Roadmaster, from MOTORAD, CALORSTAT, GATES and 1 other brand. MOTORAD 300180 carries the "Popular" badge. Economy, Heavy Duty, Performance, Premium and Standard Replacement are all represented, and Standard Replacement alone accounts for 15 parts.

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. Read more

10 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1993 Buick Roadmaster come from 7 brands — MAHLE / CLEVITE, FEL-PRO, GATES and 4 other brands. The "Popular" part is FEL-PRO 35062.

This table covers the housings and outlets the thermostat sits in. Read more

4 Thermostat Housing / Water Outlet parts are listed for the 1993 Buick Roadmaster, from DORMAN, GPD, FOUR SEASONS and 1 other brand.

Economy: 2 parts, from DORMAN and GPD. A representative part number is DORMAN 9022023.

The Standard Replacement section: 2 options from FOUR SEASONS and MOTORAD. FOUR SEASONS 85161 is listed in this group.

This group includes DORMAN 9022023, GPD 8241406 and FOUR SEASONS 85161 and the remaining parts above.

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. Read more

7 Water Pump parts are listed for the 1993 Buick Roadmaster, from FVP, SKP, US MOTOR WORKS and 4 other brands. DAYCO DP838 carries the "Popular" badge.

Economy: 4 parts, from FVP, SKP, US MOTOR WORKS and 1 other brand. A representative part number is FVP US5051.

The Standard Replacement section: 3 options from DAYCO, GATES and GMB. DAYCO DP838 is listed in this group.

This group includes DAYCO DP838, FVP US5051 and SKP SK1301690 and the remaining parts above.

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. Read more

12 Water Pump Gasket parts for the 1993 Buick Roadmaster come from 5 brands — FEL-PRO, MAHLE / CLEVITE, APEX and 2 other brands. The "Popular" part is FEL-PRO 5152.