This page lists 2 electrical switch & relay parts for the 2012 Isuzu NRR, across 1 part type, covering the 5.2L L4 DIESEL Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2012 Isuzu NRR, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Every listed part is A/C Trinary Switch.
The 2012 Isuzu NRR came with a single engine, the 5.2L L4 DIESEL Turbocharged, and every part is verified against it.
2 brands supply electrical switch & relay parts for the 2012 Isuzu NRR, led by FOUR SEASONS (1 part) and UAC (1 part).
Each part number listed for the 2012 Isuzu NRR opens a page with every vehicle that part fits.
A/C Trinary Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 20944 | 🇺🇸 US 🇨🇦 CA | Pressure Switch | View on Amazon |
| UAC | SW11276C | 🇺🇸 US 🇨🇦 CA | Trinary Switch | View on Amazon |
This table covers the A/C Trinary 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.
2 A/C Trinary Switch parts for the 2012 Isuzu NRR come from 2 brands — FOUR SEASONS and UAC.
Part numbers include FOUR SEASONS 20944 and UAC SW11276C.
Buying Electrical Switch & Relay Parts for a 2012 Isuzu NRR
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 5.2L L4 DIESEL Turbocharged 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: A/C Trinary Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2012 Isuzu NRR?
Our catalog currently lists 2 electrical switch & relay parts for the 2012 Isuzu NRR across 1 subcategory and 2 brands, covering the 5.2L L4 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2012 Isuzu NRR?
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 2012 Isuzu NRR 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 2012 Isuzu NRR?
Every part on this page is matched to the 5.2L L4 DIESEL Turbocharged 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 2012 Isuzu NRR
Electrical Switch & Relay Parts for Other Isuzu NRR Years
Switch vehicle or jump to a subcategory
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.