This page lists 68 cooling system parts for the 1979 Saab 900, across 10 part types, covering the 2.0L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1979 Saab 900, 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 Coolant / Antifreeze (18 parts), Thermostat (17 parts) and Thermostat / Thermostat Housing / Water Outlet Seal (10 parts). The other 7 part types cover the remaining 23 parts.
Every part on this page is matched to the 2.0L L4 — the only engine offered in the 1979 Saab 900.
The most listed brands for 1979 Saab 900 cooling system parts are MOTORAD (16 parts), PEAK (8 parts) and PRESTONE (6 parts), plus 20 more brands. Quality grades include Standard Replacement, Economy and Premium.
13 parts on this 1979 Saab 900 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and DAYCO 71178 (Radiator Hose). 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 | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AF6110 | 🇺🇸 US 🇨🇦 CA | MAX Original EquipmentEuropean Blue | 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 | PEB1GAL | 🇺🇸 US 🇨🇦 CA | OET European Extended Life Blue1 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.
18 Coolant / Antifreeze parts for the 1979 Saab 900 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 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, PEAK, FVP and PRESTONE supply 7 parts: built to original-equipment specification. A representative part number is FVP GREEN5050GAL.
Coolant Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 9349382 | 🇺🇸 US 🇨🇦 CA | Expansion Tank To Water PumpOn Reservoir | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
This group shows a single part: ÜRO PARTS 9349382.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PROFESSIONAL PARTS SWEDEN | 21347323 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ÜRO PARTS | 4395570 | 🇺🇸 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.
2 Coolant Reservoir Cap parts are listed for the 1979 Saab 900, from PROFESSIONAL PARTS SWEDEN and ÜRO PARTS.
This group includes PROFESSIONAL PARTS SWEDEN 21347323 and ÜRO PARTS 4395570.
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 1979 Saab 900 come from 2 brands — ACDELCO and MOTORAD.
Listed part numbers: ACDELCO 12A01 and MOTORAD 3003.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | SB3010114 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | RAD1000 | 🇺🇸 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.
2 Radiator parts for the 1979 Saab 900 come from 2 brands — TECHPRO and FVP.
The Economy section: 1 option from TECHPRO. TECHPRO SB3010114 is listed in this group.
Standard Replacement: 1 part, from FVP. A representative part number is FVP RAD1000.
Listed part numbers: TECHPRO SB3010114 and FVP RAD1000.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | ST16 | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | T16 | 🇺🇸 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.
2 Radiator Cap parts for the 1979 Saab 900 come from MOTORAD.
In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST16.
Standard Replacement: 1 part, from MOTORAD. A representative part number is MOTORAD T16.
Listed part numbers: MOTORAD ST16 and MOTORAD T16.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 31612 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
| CONTINENTAL | 52015 | 🇺🇸 US 🇨🇦 CA | FlexibleDoes Not include seals | View on Amazon |
| DAYCO | 81051 | 🇺🇸 US 🇨🇦 CA | Flex Radiator Hose | View on Amazon |
| GATES | 25253 | 🇺🇸 US 🇨🇦 CA | Flexible | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 71178 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 20137 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 20002S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 60425 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 60878 | 🇺🇸 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.
9 Radiator Hose parts are listed for the 1979 Saab 900, from CONTINENTAL, ACDELCO, DAYCO and 1 other brand. DAYCO 71178 carries the "Popular" badge.
Economy: 4 parts, from ACDELCO, CONTINENTAL, DAYCO and 1 other brand. A representative part number is ACDELCO 31612.
The Standard Replacement section: 5 options from CONTINENTAL, DAYCO, GATES and 1 other brand. DAYCO 71178 is listed in this group.
This group includes DAYCO 71178, ACDELCO 31612 and CONTINENTAL 52015 and the remaining parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Popular | 1T1204 | 🇺🇸 US 🇨🇦 CA | with Gauge | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2011358 | 🇺🇸 US 🇨🇦 CA | Switch | View on Amazon |
| ROSTRA | 680144 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| STANDARD MOTOR PRODUCTS | TS228 | 🇺🇸 US 🇨🇦 CA | with Gauge | View on Amazon |
| WELLS | 1T1204 | 🇺🇸 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 1979 Saab 900 come from 5 brands — ULTRA-POWER, BECK/ARNLEY, ROSTRA and 2 other brands. The "Popular" part is ULTRA-POWER 1T1204.
The Economy section: 1 option from ULTRA-POWER. ULTRA-POWER 1T1204 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 2011358.
Listed part numbers: ULTRA-POWER 1T1204, BECK/ARNLEY 2011358 and ROSTRA 680144, plus the other parts above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PROFESSIONAL PARTS SWEDEN | 26349512 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 2028160 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
| MOTORAD Popular | 2028180 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
| MOTORAD Popular | 2028195 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
| MOTORAD | 2028170 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7228180 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
| MOTORAD | 7228195 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
| MOTORAD | 7228160 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
| MOTORAD | 7228170 | 🇺🇸 US 🇨🇦 CA | Fail-SafeIncludes seal | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | 228195 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| BECK/ARNLEY | 1430701 | 🇺🇸 US 🇨🇦 CA | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY | 1430702 | 🇺🇸 US 🇨🇦 CA | OE TemperatureGasket/Seal Not Included | View on Amazon |
| GATES | 33188 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33189 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 228160 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 228170 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 228180 | 🇺🇸 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.
17 Thermostat parts are listed for the 1979 Saab 900, from MOTORAD, BECK/ARNLEY, GATES and 1 other brand. MOTORAD 2028160 carries the "Popular" badge.
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.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 25565 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| MOTORAD Popular | MG23 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| BECK/ARNLEY | 0390019 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| ELRING | 394090 | 🇺🇸 US 🇨🇦 CA | material: NBR (nitrile butadiene rubber) | View on Amazon |
| FACET | 79502 | 🇺🇸 US 🇨🇦 CA | O-Ring | View on Amazon |
| GATES | 33612 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal - 1 51/64" x 2 3/16" x 11/64" (Grooved, Square Cut) | View on Amazon |
| MAHLE / CLEVITE | C20283 | 🇺🇸 US 🇨🇦 CA | Paper | View on Amazon |
| STANT | 27270 | 🇺🇸 US 🇨🇦 CA | Replacement Replaces 25270Thermostat Seal | View on Amazon |
| STANT | 25270 | 🇺🇸 US 🇨🇦 CA | Replaced by 27270Thermostat Seal | View on Amazon |
| VICTOR REINZ | 713539800 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | 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.
10 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 1979 Saab 900 come from 9 brands — STANT, FEL-PRO, MOTORAD and 6 other brands. The "Popular" part is FEL-PRO 25565.
Buying Cooling System Parts for a 1979 Saab 900
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 2.0L L4 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: Coolant / Antifreeze and Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 1979 Saab 900?
Our catalog currently lists 68 cooling system parts for the 1979 Saab 900 across 10 subcategories and 23 brands, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 1979 Saab 900?
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 1979 Saab 900 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 1979 Saab 900?
Every part on this page is matched to the 2.0L L4 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 1979 Saab 900
Cooling System Parts for Other Saab 900 Years
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