The 1975 Saab 99 has 65 cooling system parts with verified fitment on this page — 9 part types and 23 brands, covering the 2.0L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1975 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 (16 parts) and Radiator Hose (8 parts). The other 6 part types cover the remaining 23 parts.
The 1975 Saab 99 came with a single engine, the 2.0L L4, and every part is verified against it.
23 brands supply cooling system parts for the 1975 Saab 99, led by GATES (12 parts), PEAK (8 parts) and MOTORAD (8 parts), plus 20 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 1975 Saab 99. 14 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and MOTORAD T16 (Radiator Cap). 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 1975 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.
Coolant Hose / Pipe
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 31615 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalFlexible | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 26030X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| GATES | 20893 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
3 Coolant Hose / Pipe parts are listed for the 1975 Saab 99, from ACDELCO and GATES.
Economy: 1 part, from ACDELCO. A representative part number is ACDELCO 31615.
The Standard Replacement section: 2 options from ACDELCO and GATES. ACDELCO 26030X is listed in this group.
This group includes ACDELCO 31615, ACDELCO 26030X and GATES 20893.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31413 | 🇺🇸 US 🇨🇦 CA | Cooling System PressureRadiator Cap | 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 are listed for the 1975 Saab 99, from GATES and MOTORAD.
This group includes GATES 31413 and MOTORAD 3003.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31518 | 🇺🇸 US 🇨🇦 CA | Safety Release Radiator Cap | View on Amazon |
| MOTORAD | ST16 | 🇺🇸 US 🇨🇦 CA | Safety Lever | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | T16 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| GATES | 31528 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| SKP | SK10230 | 🇺🇸 US 🇨🇦 CA | Pressure Rating 16 psi | 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.
5 Radiator Cap parts are listed for the 1975 Saab 99, from GATES, MOTORAD and SKP. MOTORAD T16 carries the "Popular" badge.
The Locking Replacement section lists 2 options from GATES and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. GATES 31518 is listed in this group.
The Standard Replacement section: 3 options from MOTORAD, GATES and SKP. MOTORAD T16 is listed in this group.
This group includes MOTORAD T16, GATES 31518 and MOTORAD ST16 and the remaining parts above.
Radiator Hose
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 81041 | 🇺🇸 US 🇨🇦 CA | Flex Radiator Hose | View on Amazon |
| CONTINENTAL | 52015 | 🇺🇸 US 🇨🇦 CA | FlexibleDoes Not include seals | View on Amazon |
| DAYCO | 81071 | 🇺🇸 US 🇨🇦 CA | Flex Radiator Hose | View on Amazon |
| GATES | 25252 | 🇺🇸 US 🇨🇦 CA | Flexible | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 20137 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 20002S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| 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.
8 Radiator Hose parts for the 1975 Saab 99 come from 4 brands — DAYCO, CONTINENTAL, GATES and 1 other brand. The "Popular" part is DAYCO 81041.
The Economy section: 4 options from DAYCO, CONTINENTAL and GATES. DAYCO 81041 is listed in this group.
Standard Replacement: 4 parts, from GATES, ACDELCO, CONTINENTAL and 1 other brand. A representative part number is GATES 20137.
Listed part numbers: DAYCO 81041, CONTINENTAL 52015 and DAYCO 81071, plus the other 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 are listed for the 1975 Saab 99, 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.
Part numbers include ULTRA-POWER 1T1204, BECK/ARNLEY 2011358 and ROSTRA 680144, among others listed 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 |
| PROFESSIONAL PARTS SWEDEN | 26349512 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | 7272180 | 🇺🇸 US 🇨🇦 CA | Fail-Safe | View on Amazon |
| MOTORAD | 7272192 | 🇺🇸 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 |
| GATES Popular | 33008 | 🇺🇸 US 🇨🇦 CA | OE Type | 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 |
| CALORSTAT | TH151470J | 🇺🇸 US 🇨🇦 CA | Includes 1 Rubber Gasket | View on Amazon |
| CALORSTAT | TH140083J | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 1 Rubber Gasket | View on Amazon |
| CALORSTAT | TH606382J | 🇺🇸 US 🇨🇦 CA | Includes 1 Rubber Gasket | View on Amazon |
| CALORSTAT | TH151481J | 🇺🇸 US 🇨🇦 CA | Includes 1 Rubber Gasket | View on Amazon |
| GATES | 33006 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 272180 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| MOTORAD | 272192 | 🇺🇸 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.
16 Thermostat parts for the 1975 Saab 99 come from 5 brands — GATES, MOTORAD, CALORSTAT and 2 other brands. The "Popular" part is GATES 33508.
The Economy section: 3 options from GATES and PROFESSIONAL PARTS SWEDEN. GATES 33508 is listed in this group.
Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7272180.
Standard Replacement: 11 parts, from CALORSTAT, GATES, BECK/ARNLEY and 1 other brand. A representative part number is GATES 33009.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 33624 | 🇺🇸 US 🇨🇦 CA | Thermostat Gasket - 1 27/32" | View on Amazon |
| MOTORAD Popular | MG38 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ELRING | 394090 | 🇺🇸 US 🇨🇦 CA | material: NBR (nitrile butadiene rubber) | View on Amazon |
| FACET | 79502 | 🇺🇸 US 🇨🇦 CA | O-Ring | View on Amazon |
| FEL-PRO | 25565 | 🇺🇸 US 🇨🇦 CA | Water Outlet Seal | View on Amazon |
| MAHLE / CLEVITE | C20283 | 🇺🇸 US 🇨🇦 CA | Paper | 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.
7 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1975 Saab 99, from GATES, MOTORAD, ELRING and 4 other brands. GATES 33624 carries the "Popular" badge.
Part numbers include GATES 33624, MOTORAD MG38 and ELRING 394090, among others listed above.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SALERI | PA469 | 🇺🇸 US 🇨🇦 CA | MechanicalNumber of Gaskets/Seals/Seal Rings: 1 | View on Amazon |
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.
This group shows a single part: SALERI PA469.
Buying Cooling System Parts for a 1975 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 1975 Saab 99?
Our catalog currently lists 65 cooling system parts for the 1975 Saab 99 across 9 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 1975 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 1975 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 1975 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 1975 Saab 99
Cooling System Parts for Other Saab 99 Years
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