7 Electrical switch & relay parts are listed for the 1966 MG Midget, in 2 part types, covering both the 1.1L L4 and the 1.3L L4. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1966 MG Midget, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. All 7 listed parts are Oil Pressure Sender / Switch (6 parts) and Brake Light Switch (1 part).
The 1966 MG Midget was sold with both the 1.1L L4 and the 1.3L L4. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1966 MG Midget electrical switch & relay parts are STANDARD MOTOR PRODUCTS (2 parts), HOLSTEIN (1 part) and SKP (1 part), plus 3 more brands. Quality grades include Standard Replacement and Economy.
2 parts on this 1966 MG Midget page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FACET 70010 (Oil Pressure Sender / Switch) and STANDARD MOTOR PRODUCTS PS121 (Oil Pressure Sender / Switch). Click any part number to see every vehicle that part fits.
Brake Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.1L L4 | SLS34 | 🇺🇸 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.
This group shows a single part: STANDARD MOTOR PRODUCTS SLS34.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 1.1L L4 | 2OPS0071 | 🇺🇸 US | View on Amazon | |
| SKP Fits: 1.1L L4 | SK2011078 | 🇺🇸 US | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Popular Fits: 1.1L L4 | 70010 | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.1L L4 | PS121 | 🇺🇸 US | View on Amazon | |
| ROSTRA Fits: 1.1L L4 | 501314 | 🇺🇸 US | View on Amazon | |
| WELLS Fits: 1.1L L4 | 1S17255 | 🇺🇸 US | with Gauge & 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.
6 Oil Pressure Sender / Switch parts for the 1966 MG Midget come from 6 brands — HOLSTEIN, SKP, FACET and 3 other brands. The "Popular" part is FACET 70010.
The Economy section lists 2 options from HOLSTEIN and SKP — the catalog's value-priced group. HOLSTEIN 2OPS0071 is listed in this group.
In the Standard Replacement grade, FACET, STANDARD MOTOR PRODUCTS, ROSTRA and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is FACET 70010.
Part numbers include FACET 70010, HOLSTEIN 2OPS0071 and SKP SK2011078, among others listed above.
Buying Electrical Switch & Relay Parts for a 1966 MG Midget
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: Oil Pressure Sender / Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 1966 MG Midget?
Our catalog currently lists 7 electrical switch & relay parts for the 1966 MG Midget across 2 subcategories and 6 brands, covering both the 1.1L L4 and the 1.3L L4. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 1966 MG Midget 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 1966 MG Midget?
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 1966 MG Midget 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 1966 MG Midget?
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 1966 MG Midget
Electrical Switch & Relay Parts for Other MG Midget Years
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