This page lists 25 electrical switch & relay parts for the 1972 Fiat 124, across 5 part types, covering both the 1.4L L4 and the 1.6L L4. Every part shows its brand, manufacturer part number and fitment notes.
On the 1972 Fiat 124, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Fuel Pump / Circuit Opening Relay (6 parts), Accessory Power Relay (5 parts) and Brake Light Switch (5 parts). The other 2 part types cover the remaining 9 parts.
The 1972 Fiat 124 was sold with both the 1.4L L4 and the 1.6L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1972 Fiat 124 electrical switch & relay parts are STANDARD MOTOR PRODUCTS (8 parts), ROSTRA (6 parts) and WELLS (4 parts), plus 5 more brands. Quality grades include Standard Replacement and Economy.
5 parts on this 1972 Fiat 124 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS RY116 (Accessory Power Relay) and STANDARD MOTOR PRODUCTS SLS125 (Brake Light Switch). Click any part number to see every vehicle that part fits.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.6L L4 | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
| ROSTRA Fits: 1.6L L4 | 600003 | 🇺🇸 US 🇨🇦 CA | Amperage Rating: 40 AmpereConnector Gender: Male | View on Amazon |
| ROSTRA Fits: 1.6L L4 | 600034 | 🇺🇸 US 🇨🇦 CA | Connector Gender: MaleMounting Bracket Included: YES | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 | RY30T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
5 Accessory Power Relay parts are listed for the 1972 Fiat 124, from STANDARD MOTOR PRODUCTS and ROSTRA. STANDARD MOTOR PRODUCTS RY116 carries the "Popular" badge.
Part numbers include STANDARD MOTOR PRODUCTS RY116, ROSTRA 600003 and ROSTRA 600034, among others listed above.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Fits: 1.6L L4 | 1S5756 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.6L L4 | SLS125 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: 1.6L L4 | 2010338 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET Fits: 1.6L L4 | 71000 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.6L L4 | 1S5756 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 Brake Light Switch parts for the 1972 Fiat 124 come from 5 brands — ULTRA-POWER, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS SLS125.
The Economy section lists 1 option from ULTRA-POWER — the catalog's value-priced group. ULTRA-POWER 1S5756 is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, BECK/ARNLEY, FACET and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SLS125.
This group includes STANDARD MOTOR PRODUCTS SLS125, ULTRA-POWER 1S5756 and BECK/ARNLEY 2010338 and the remaining parts above.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.6L L4 | RY116T | 🇺🇸 US 🇨🇦 CA | T-SeriesConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.6L L4 | RY116 | 🇺🇸 US 🇨🇦 CA | Connector Quantity: 1Mounting Bracket Included: No | View on Amazon |
| ROSTRA Fits: 1.6L L4 | 600003 | 🇺🇸 US 🇨🇦 CA | Amperage Rating: 40 AmpereConnector Gender: Male | View on Amazon |
| ROSTRA Fits: 1.6L L4 | 600034 | 🇺🇸 US 🇨🇦 CA | Connector Gender: MaleMounting Bracket Included: YES | View on Amazon |
| ÜRO PARTS Fits: 1.6L L4 | 8533176 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.6L L4 | 1R1249 | 🇺🇸 US 🇨🇦 CA | Connector Gender: MaleMounting Bracket Included: YES | View on Amazon |
This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
6 Fuel Pump / Circuit Opening Relay parts for the 1972 Fiat 124 come from 4 brands — STANDARD MOTOR PRODUCTS, ROSTRA, ÜRO PARTS and 1 other brand. The "Popular" part is STANDARD MOTOR PRODUCTS RY116T.
Listed part numbers: STANDARD MOTOR PRODUCTS RY116T, STANDARD MOTOR PRODUCTS RY116 and ROSTRA 600003, plus the other parts above.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: 1.6L L4 | 2010353 | 🇨🇦 CA | with Light | View on Amazon |
| HELLA Fits: 1.6L L4 | 003259201 | 🇺🇸 US 🇨🇦 CA | 1-Pin Connector | View on Amazon |
| ROSTRA Fits: 1.6L L4 | 501397 | 🇺🇸 US 🇨🇦 CA | with Light | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 | PS187 | 🇺🇸 US 🇨🇦 CA | with Gauge | View on Amazon |
| WELLS Fits: 1.6L L4 | 1S6565 | 🇺🇸 US 🇨🇦 CA | with Light | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
5 Oil Pressure Sender / Switch parts for the 1972 Fiat 124 come from 5 brands — BECK/ARNLEY, HELLA, ROSTRA and 2 other brands. The "Popular" part is BECK/ARNLEY 2010353.
Listed part numbers: BECK/ARNLEY 2010353, HELLA 003259201 and ROSTRA 501397, plus the other parts above.
Radiator Fan Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 1.6L L4 | 2010809 | 🇨🇦 CA | View on Amazon | |
| ROSTRA Fits: 1.6L L4 | 750025 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 | TS108 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.6L L4 | 1S4391 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Radiator Fan switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Radiator Fan Switch parts for the 1972 Fiat 124 come from 4 brands — BECK/ARNLEY, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
This group includes BECK/ARNLEY 2010809, ROSTRA 750025 and STANDARD MOTOR PRODUCTS TS108 and the remaining parts above.
Buying Electrical Switch & Relay Parts for a 1972 Fiat 124
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Every electrical switch & relay part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Fuel Pump / Circuit Opening Relay and Accessory Power Relay .
Frequently Asked Questions
How many electrical switch & relay parts fit the 1972 Fiat 124?
Our catalog currently lists 25 electrical switch & relay parts for the 1972 Fiat 124 across 5 subcategories and 8 brands, covering both the 1.4L L4 and the 1.6L L4. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 1972 Fiat 124 engines?
Yes. Every electrical switch & relay part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical switch & relay problems on a 1972 Fiat 124?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
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 1972 Fiat 124 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 1972 Fiat 124?
First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1972 Fiat 124
Electrical Switch & Relay Parts for Other Fiat 124 Years
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