The 1973 Saab 99 has 40 cooling system parts with verified fitment on this page — 4 part types and 11 brands, covering the 2.0L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1973 Saab 99, 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 (15 parts) and Radiator Hose (4 parts). The other 1 part type covers the remaining 3 parts.
The 1973 Saab 99 came with a single engine, the 2.0L L4, and every part is verified against it.
11 brands supply cooling system parts for the 1973 Saab 99, led by PEAK (8 parts), MOTORAD (7 parts) and PRESTONE (6 parts), plus 8 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1973 Saab 99. 7 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and GATES 33508 (Thermostat). Each part number opens a page with 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 are listed for the 1973 Saab 99, 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.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 52015 | 🇺🇸 US 🇨🇦 CA | FlexibleDoes Not include seals | View on Amazon |
| DAYCO | 81041 | 🇺🇸 US 🇨🇦 CA | Flex Radiator Hose | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 60138 | 🇺🇸 US 🇨🇦 CA | MoldedCut to Fit | View on Amazon |
| DAYCO | 71178 | 🇺🇸 US 🇨🇦 CA | Curved | 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.
4 Radiator Hose parts for the 1973 Saab 99 come from 2 brands — CONTINENTAL and DAYCO.
The Economy section: 2 options from CONTINENTAL and DAYCO. CONTINENTAL 52015 is listed in this group.
Standard Replacement: 2 parts, from CONTINENTAL and DAYCO. A representative part number is CONTINENTAL 60138.
This group includes CONTINENTAL 52015, DAYCO 81041 and CONTINENTAL 60138 and the remaining parts above.
Thermostat
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 33508 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
| GATES Popular | 33509 | 🇺🇸 US 🇨🇦 CA | Economy | View on Amazon |
Performance
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 2002180 | 🇺🇸 US 🇨🇦 CA | High Flow | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7202180 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
| MOTORAD | 7202160 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 33009 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| BECK/ARNLEY | 1430156 | 🇺🇸 US 🇨🇦 CA | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY | 1430149 | 🇺🇸 US 🇨🇦 CA | OE TemperatureGasket/Seal Not Included | View on Amazon |
| BECK/ARNLEY | 1430131 | 🇺🇸 US 🇨🇦 CA | Alternate TemperatureGasket/Seal Not Included | View on Amazon |
| GATES | 33006 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| GATES | 33008 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 202192 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 202180 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 202198 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 202160 | 🇺🇸 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.
15 Thermostat parts for the 1973 Saab 99 come from 3 brands — MOTORAD, GATES and BECK/ARNLEY. The "Popular" part is GATES 33508.
The Economy section: 2 options from GATES. GATES 33508 is listed in this group.
The Performance section lists 1 option from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2002180 is listed in this group.
Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7202180.
Standard Replacement: 10 parts, from MOTORAD, GATES and BECK/ARNLEY. A representative part number is GATES 33009.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 25565 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| GATES | 33624 | 🇺🇸 US 🇨🇦 CA | Thermostat Gasket - 1 27/32" | 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.
3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1973 Saab 99, from FEL-PRO, GATES and VICTOR REINZ.
This group includes FEL-PRO 25565, GATES 33624 and VICTOR REINZ 713539800.
Buying Cooling System Parts for a 1973 Saab 99
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 1973 Saab 99?
Our catalog currently lists 40 cooling system parts for the 1973 Saab 99 across 4 subcategories and 11 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 1973 Saab 99?
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 1973 Saab 99 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 1973 Saab 99?
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 1973 Saab 99
Cooling System Parts for Other Saab 99 Years
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