The 2021 MG HS has one listed electrical switch & relay part: Oil Pressure Sender / Switch from WALKER PRODUCTS, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. It includes a manufacturer part number and application notes.
On the 2021 MG HS, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
The 2021 MG HS was sold with both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The part number opens a page with every vehicle that part fits.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: 1.5L L4 Turbocharged | 2561004 | 🇲🇽 MX | Includes Seal | 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.
This group shows a single part: WALKER PRODUCTS 2561004.
Buying Electrical Switch & Relay Parts for a 2021 MG HS
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 .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 MG HS?
This page lists one electrical switch & relay part for the 2021 MG HS: Oil Pressure Sender / Switch from WALKER PRODUCTS, covering both the 1.5L L4 Turbocharged and the 2.0L L4 Turbocharged.
Do electrical switch & relay parts differ between 2021 MG HS 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 2021 MG HS?
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 2021 MG HS 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 2021 MG HS?
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 2021 MG HS
Electrical Switch & Relay Parts for Other MG HS Years
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