1991 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

24 Coolant / Antifreeze parts for the 1991 Saab 900 come from 6 brands — VALVOLINE, PRESTONE, PEAK and 3 other brands. The "Popular" part is FVP MV5050GAL. 16 parts fit every engine; the other 8 are engine-specific.

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 2 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.

In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE, PENTOSIN, PRESTONE and 3 other brands supply 12 parts: built to original-equipment specification. A representative part number is PRESTONE AF3300.

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

2 Coolant Hose / Pipe parts for the 1991 Saab 900 come from ÜRO PARTS. Every part fits both the 2.0L L4 Turbocharged and the 2.1L L4.

This group includes ÜRO PARTS 7504624 and 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

4 Coolant Reservoir Cap parts are listed for the 1991 Saab 900, from MOTORAD, PROFESSIONAL PARTS SWEDEN, STANT and 1 other brand. 3 parts fit every engine; the other 1 is engine-specific.

This group includes MOTORAD T30, PROFESSIONAL PARTS SWEDEN 21347323 and STANT 10260 and the remaining parts above.

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

3 Cooling System Tester Adapter parts for the 1991 Saab 900 come from 2 brands — MOTORAD and GATES. Every part fits both the 2.0L L4 Turbocharged and the 2.1L L4.

Part numbers include GATES 31371, MOTORAD 3120 and MOTORAD 3123.

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

10 Radiator parts for the 1991 Saab 900 come from 7 brands — NISSENS, FVP, TECHPRO and 4 other brands. The "Popular" part is NISSENS 64059A.

The Economy section: 1 option from TECHPRO. TECHPRO SB3010113 is listed in this group.

Standard Replacement: 3 parts, from NISSENS and FVP. A representative part number is NISSENS 64059A.

6 further parts sit outside the graded sections, with the same engine-level match.

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

16 Radiator Hose parts are listed for the 1991 Saab 900, from GATES, CONTINENTAL, ÜRO PARTS and 2 other brands. GATES 25252 carries the "Popular" badge. 13 parts fit every engine; the other 3 are engine-specific.

Economy: 2 parts, from GATES and CONTINENTAL. A representative part number is GATES 25252.

The Standard Replacement section: 14 options from ÜRO PARTS, GATES, CONTINENTAL and 2 other brands. ACDELCO 22134M 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 1991 Saab 900 come from 14 brands — STANDARD MOTOR PRODUCTS, FACET, WALKER PRODUCTS and 11 other brands. The "Popular" part is SKP SKTX18. Every part fits both the 2.0L L4 Turbocharged and the 2.1L L4.

The Economy section: 6 options from SKP, STANDARD MOTOR PRODUCTS, ÜRO PARTS and 3 other brands. SKP SKTX18 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 21191122 is listed in this group.

Standard Replacement: 12 parts, from FACET, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 6 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX18.

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

17 Thermostat parts are listed for the 1991 Saab 900, from MOTORAD, BECK/ARNLEY, GATES and 1 other brand. MOTORAD 2028160 carries the "Popular" badge. 16 parts fit every engine; the other 1 is engine-specific.

Economy: 1 part, from PROFESSIONAL PARTS SWEDEN. A representative part number is PROFESSIONAL PARTS SWEDEN 26349512.

In the Performance grade, MOTORAD supplies 4 parts: engineered beyond original-equipment specification. A representative part number is MOTORAD 2028160.

The Premium section: 4 options from MOTORAD. MOTORAD 7228180 is listed in this group.

The Standard Replacement section: 8 options from MOTORAD, BECK/ARNLEY and GATES. MOTORAD 228195 is listed in this group.

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

12 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1991 Saab 900 come from 9 brands — FEL-PRO, APEX, STANT and 6 other brands. The "Popular" part is BECK/ARNLEY 0390019. 10 parts fit every engine; the other 2 are engine-specific.

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

8 Water Pump parts are listed for the 1991 Saab 900, from FVP, BECK/ARNLEY, US MOTOR WORKS and 4 other brands. GMB 1581020 carries the "Popular" badge. 7 parts fit every engine; the other 1 is engine-specific.

Economy: 3 parts, from BECK/ARNLEY, FVP and US MOTOR WORKS. A representative part number is BECK/ARNLEY 1311955.

The Standard Replacement section: 4 options from GMB, FVP, GRAF and 1 other brand. GMB 1581020 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This group includes GMB 1581020, BECK/ARNLEY 1311955 and FVP US9108 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

2 Water Pump Gasket parts for the 1991 Saab 900 come from 2 brands — APEX and VICTOR REINZ. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include APEX AWP3220 and VICTOR REINZ 711599010.

This table covers the Water Pump Inlet tubes. Read more

ÜRO PARTS supplies the 3 Water Pump Inlet Tube parts for the 1991 Saab 900.

Part numbers include ÜRO PARTS 4284436, ÜRO PARTS 7541527 and ÜRO PARTS 7513435.