This page lists 5 electrical switch & relay parts for the 1947 Hudson Pickup, across 3 part types, covering the 3.5L 212cid L6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1947 Hudson Pickup, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. All 5 listed parts are Brake Light Switch (2 parts), Horn Relay (2 parts) and Dimmer Switch (1 part).
Every part on this page is matched to the 3.5L 212cid L6 — the only engine offered in the 1947 Hudson Pickup.
The most listed brands for 1947 Hudson Pickup electrical switch & relay parts are STANDARD MOTOR PRODUCTS (4 parts) and ROSTRA (1 part). Quality grades include Economy and Standard Replacement.
Each part number listed for the 1947 Hudson Pickup opens a page with every vehicle that part fits.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SLS27T | 🇺🇸 US | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SLS27 | 🇺🇸 US | 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.
2 Brake Light Switch parts for the 1947 Hudson Pickup come from STANDARD MOTOR PRODUCTS.
The Economy section lists 1 option from STANDARD MOTOR PRODUCTS — the catalog's value-priced group. STANDARD MOTOR PRODUCTS SLS27T is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS supplies 1 part: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS SLS27.
This group includes STANDARD MOTOR PRODUCTS SLS27T and STANDARD MOTOR PRODUCTS SLS27.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DS40 | 🇺🇸 US | 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.
One part is listed for the 1947 Hudson Pickup — STANDARD MOTOR PRODUCTS DS40.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 600328 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS | HR114 | 🇺🇸 US | 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.
2 Horn Relay parts are listed for the 1947 Hudson Pickup, from ROSTRA and STANDARD MOTOR PRODUCTS.
Listed part numbers: ROSTRA 600328 and STANDARD MOTOR PRODUCTS HR114.
Buying Electrical Switch & Relay Parts for a 1947 Hudson Pickup
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 3.5L 212cid L6 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 Horn Relay .
Frequently Asked Questions
How many electrical switch & relay parts fit the 1947 Hudson Pickup?
Our catalog currently lists 5 electrical switch & relay parts for the 1947 Hudson Pickup across 3 subcategories and 2 brands, covering the 3.5L 212cid L6 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 1947 Hudson Pickup?
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 1947 Hudson Pickup 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 1947 Hudson Pickup?
Every part on this page is matched to the 3.5L 212cid L6 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 1947 Hudson Pickup
Electrical Switch & Relay Parts for Other Hudson Pickup Years
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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.