1983 Fiat X-1/9 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

18 Coolant / Antifreeze parts are listed for the 1983 Fiat X-1/9, from PEAK, PRESTONE, VALVOLINE and 1 other brand. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 1983 X-1/9.

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 846439 is listed in this group.

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 8 options from PEAK, VALVOLINE, FVP and 1 other brand — built to original-equipment specification. VALVOLINE 861399 is listed in this group.

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

5 Coolant Hose / Pipe parts are listed for the 1983 Fiat X-1/9, from ACDELCO, CONTINENTAL, DAYCO and 1 other brand.

Part numbers include ACDELCO 20260S, ACDELCO 31006 and CONTINENTAL 66550, among others listed above.

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

3 Cooling System Tester Adapter parts are listed for the 1983 Fiat X-1/9, from ACDELCO, GATES and MOTORAD. All of them fit every engine offered in the 1983 X-1/9.

This group includes ACDELCO 12A01, GATES 31413 and MOTORAD 3003.

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. Read more

7 Radiator Cap parts are listed for the 1983 Fiat X-1/9, from GATES, MOTORAD, SKP and 1 other brand. GATES 31527 carries the "Popular" badge. All of them fit every engine offered in the 1983 X-1/9.

The Locking Replacement section lists 3 options from GATES, MOTORAD and SKP — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. GATES 31511 is listed in this group.

The Standard Replacement section: 4 options from GATES, MOTORAD, CALORSTAT and 1 other brand. GATES 31527 is listed in this group.

Part numbers include GATES 31527, GATES 31511 and MOTORAD ST13, among others listed above.

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

18 Radiator Hose parts for the 1983 Fiat X-1/9 come from 4 brands — GATES, DAYCO, ACDELCO and 1 other brand. The "Popular" part is DAYCO 70938.

The Economy section: 5 options from GATES and DAYCO. DAYCO 81041 is listed in this group.

Standard Replacement: 13 parts, from DAYCO, GATES, ACDELCO and 1 other brand. A representative part number is DAYCO 70938.

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

6 Temperature Sender / Sensor parts are listed for the 1983 Fiat X-1/9, from STANDARD MOTOR PRODUCTS, SKP, UNITED MOTOR PRODUCTS and 2 other brands. SKP SKTX18 carries the "Popular" badge. All of them fit every engine offered in the 1983 X-1/9.

Economy: 3 parts, from SKP, STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. A representative part number is SKP SKTX18.

The Standard Replacement section: 3 options from FOUR SEASONS, STANDARD MOTOR PRODUCTS and WELLS. FOUR SEASONS 36413 is listed in this group.

Listed part numbers: SKP SKTX18, STANDARD MOTOR PRODUCTS TX18T and UNITED MOTOR PRODUCTS CTS13, plus the other 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

5 Thermostat parts for the 1983 Fiat X-1/9 come from 2 brands — BECK/ARNLEY and MOTORAD. The "Popular" part is BECK/ARNLEY 1430641. 2 parts fit every engine; the other 3 are engine-specific.

Listed part numbers: BECK/ARNLEY 1430641, BECK/ARNLEY 1430640 and BECK/ARNLEY 1430706, plus the other parts above.

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

One part is listed for the 1983 Fiat X-1/9 — MOTORAD MG31.

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 for the 1983 Fiat X-1/9 come from 4 brands — FVP, GMB, BECK/ARNLEY and 1 other brand. The "Popular" part is GMB 1232020.

The Economy section: 3 options from BECK/ARNLEY, FVP and US MOTOR WORKS. BECK/ARNLEY 1312347 is listed in this group.

Standard Replacement: 3 parts, from GMB and FVP. A representative part number is GMB 1232020.

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

This group includes GMB 1232020, BECK/ARNLEY 1312347 and FVP US9084 and the remaining parts above.