1981 Saab 900 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 are listed for the 1981 Saab 900, 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 5 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 7 options from PEAK, FVP and PRESTONE — built to original-equipment specification. FVP GREEN5050GAL is listed in this group.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

One part is listed for the 1981 Saab 900 — ÜRO PARTS 9349382.

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 for the 1981 Saab 900 come from 2 brands — PROFESSIONAL PARTS SWEDEN and ÜRO PARTS.

Part numbers include PROFESSIONAL PARTS SWEDEN 21347323 and ÜRO PARTS 4395570.

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

2 Cooling System Tester Adapter parts are listed for the 1981 Saab 900, from ACDELCO and MOTORAD.

Part numbers include ACDELCO 12A01 and MOTORAD 3003.

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

2 Radiator parts are listed for the 1981 Saab 900, from TECHPRO and FVP.

Economy: 1 part, from TECHPRO. A representative part number is TECHPRO SB3010114.

The Standard Replacement section: 1 option from FVP. FVP RAD1000 is listed in this group.

Listed part numbers: TECHPRO SB3010114 and FVP RAD1000.

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

MOTORAD supplies both parts for the 1981 Saab 900.

The Locking Replacement section lists 1 option from MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST16 is listed in this group.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD T16 is listed in this group.

This group includes MOTORAD ST16 and MOTORAD T16.

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

5 Temperature Sender / Sensor parts are listed for the 1981 Saab 900, from ULTRA-POWER, BECK/ARNLEY, ROSTRA and 2 other brands. ULTRA-POWER 1T1204 carries the "Popular" badge.

Economy: 1 part, from ULTRA-POWER. A representative part number is ULTRA-POWER 1T1204.

The Standard Replacement section: 4 options from BECK/ARNLEY, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. BECK/ARNLEY 2011358 is listed in this group.

Listed part numbers: ULTRA-POWER 1T1204, BECK/ARNLEY 2011358 and ROSTRA 680144, plus the other parts above.

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

16 Thermostat parts for the 1981 Saab 900 come from 3 brands — MOTORAD, BECK/ARNLEY and GATES. The "Popular" part is MOTORAD 2028160.

The Performance section lists 4 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2028160 is listed in this group.

Premium: 4 parts, from MOTORAD. A representative part number is MOTORAD 7228180.

Standard Replacement: 8 parts, from MOTORAD, BECK/ARNLEY and GATES. A representative part number is MOTORAD 228195.

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

9 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1981 Saab 900, from STANT, FEL-PRO, MOTORAD and 5 other brands. FEL-PRO 25565 carries the "Popular" badge.

This group includes FEL-PRO 25565, MOTORAD MG23 and BECK/ARNLEY 0390019 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 for the 1981 Saab 900 come from 6 brands — FVP, BECK/ARNLEY, US MOTOR WORKS and 3 other brands. The "Popular" part is GMB 1581020.

The Economy section: 3 options from BECK/ARNLEY, FVP and US MOTOR WORKS. BECK/ARNLEY 1311955 is listed in this group.

Standard Replacement: 4 parts, from GMB, FVP, GRAF and 1 other brand. A representative part number is GMB 1581020.

Part numbers include GMB 1581020, BECK/ARNLEY 1311955 and FVP US9108, among others listed above.