This page lists 7 electrical switch & relay parts for the 1958 Edsel Roundup, across 6 part types, covering the 5.9L 361cid V8 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1958 Edsel Roundup, 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 Brake Light Switch (2 parts), Deck Lid / Liftgate Ajar Switch (1 part) and Dimmer Switch (1 part). The other 3 part types cover the remaining 3 parts.
The 1958 Edsel Roundup came with a single engine, the 5.9L 361cid V8, and every part is verified against it.
Every electrical switch & relay part listed for the 1958 Edsel Roundup comes from STANDARD MOTOR PRODUCTS. Quality grades include Economy and Standard Replacement.
Each part number listed for the 1958 Edsel Roundup opens a page with every vehicle that part fits.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SLS27T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SLS27 | 🇺🇸 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 1958 Edsel Roundup.
In the Economy grade, STANDARD MOTOR PRODUCTS supplies 1 part: the catalog's value-priced group. A representative part number is STANDARD MOTOR PRODUCTS SLS27T.
The Standard Replacement section lists 1 option from STANDARD MOTOR PRODUCTS — built to original-equipment specification. STANDARD MOTOR PRODUCTS SLS27 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS SLS27T and STANDARD MOTOR PRODUCTS SLS27.
Deck Lid / Liftgate Ajar Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DS125 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Deck Lid / Liftgate Ajar 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.
One part is listed for the 1958 Edsel Roundup — STANDARD MOTOR PRODUCTS DS125.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DS43 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. 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.
This group shows a single part: STANDARD MOTOR PRODUCTS DS43.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HR119 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the relays that control the Horn 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.
This group shows a single part: STANDARD MOTOR PRODUCTS HR119.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | US50 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the ignition switches that feed the starter circuit. 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.
This group shows a single part: STANDARD MOTOR PRODUCTS US50.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | PS10 | 🇺🇸 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.
One part is listed for the 1958 Edsel Roundup — STANDARD MOTOR PRODUCTS PS10.
Buying Electrical Switch & Relay Parts for a 1958 Edsel Roundup
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Confirm you have the 5.9L 361cid V8 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, 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: Brake Light Switch and Deck Lid / Liftgate Ajar Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 1958 Edsel Roundup?
Our catalog currently lists 7 electrical switch & relay parts for the 1958 Edsel Roundup across 6 subcategories and 1 brand, covering the 5.9L 361cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 1958 Edsel Roundup?
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 1958 Edsel Roundup 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 1958 Edsel Roundup?
Every part on this page is matched to the 5.9L 361cid V8 engine. 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 1958 Edsel Roundup
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.