1971 Fiat 850 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

15 Coolant / Antifreeze parts are listed for the 1971 Fiat 850, from PEAK, PRESTONE, FVP and 1 other brand. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 1971 850.

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 Premium section lists 4 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 6 options from PEAK, FVP and PRESTONE — built to original-equipment specification. FVP GREEN5050GAL is listed in this group.

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

9 Radiator Hose parts for the 1971 Fiat 850 come from 3 brands — CONTINENTAL, GATES and ACDELCO. The "Popular" part is GATES 25305. Every part fits both the 817cc L4 and the 903cc L4.

The Economy section: 4 options from CONTINENTAL, GATES and ACDELCO. GATES 25305 is listed in this group.

Standard Replacement: 5 parts, from CONTINENTAL, GATES and ACDELCO. A representative part number is CONTINENTAL 60910.

This group includes GATES 25305, ACDELCO 31623 and CONTINENTAL 52015 and the remaining 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

28 Thermostat parts for the 1971 Fiat 850 come from 4 brands — MOTORAD, GATES, BECK/ARNLEY and 1 other brand. The "Popular" part is MOTORAD 300180. They are grouped as Economy, Heavy Duty, Performance, Premium and Standard Replacement, with Standard Replacement the largest group at 13 parts from MOTORAD, BECK/ARNLEY, CALORSTAT and 1 other brand.

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

3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1971 Fiat 850, from GATES and MOTORAD. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include GATES 33635, GATES 34030 and MOTORAD MG30.

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

This group shows a single part: GMB 1232050.