Power Supply Unit (PSU) 185W
Apple Part Number: 661-7111
1-Year Warranty
Full replacement
Fast Shipping
1-2 business days
Tested & Verified
QA before ship
Expert Help
Install guidance
Compatibility
| Model | Order # | Model # | EMC | Identifier | Processor |
|---|---|---|---|---|---|
| iMac (Retina 4K, 21.5-inch, 2019) | BTO/CTO, MRT32LL/A, MRT42LL/A | A2116 | 3195 | iMac19,2 | 3.6 GHz Intel Core i3 |
| iMac (Retina 4K, 21.5-inch, 2017) | BTO/CTO, MNDY2LL/A, MNE02LL/A | A1418 | 3069 | iMac18,2 | 3.0 GHz Intel Core i5 |
| iMac (21.5-inch, 2017) | MMQA2LL/A | A1418 | 3068 | iMac18,1 | 2.3 GHz Intel Core i5 |
| iMac (Retina 4K, 21.5-inch, Late 2015) | BTO/CTO, MK452LL/A | A1418 | 2833 | iMac16,2 | 2.8 GHz Intel Core i5 |
| iMac (21.5-inch, Late 2015) | MK142LL/A, MK442LL/A | A1418 | 2889 | iMac16,2 | 2.8 GHz Intel Core i5 |
| iMac (21.5-inch, Mid 2014) | MF883LL/A | A1418 | 2805 | iMac14,4 | 1.4 GHz Intel Core i5 |
| iMac (21.5-inch, Late 2013) | BTO/CTO, ME086LL/A, ME087LL/A | A1418 | 2742 | iMac14,3 | 2.9 GHz Intel Core i5 |
| iMac (21.5-inch, Early 2013) | ME699LL/A | A1418 | 2545 | iMac13,1 | 2.7 GHz Intel Core i5 |
| iMac (21.5-inch, Late 2012) | BTO/CTO, MD093LL/A, MD094LL/A | A1418 | 2544 | iMac13,1 | 2.7 GHz Intel Core i5 |
| iMac 21.5-inch Late 2013 | A1418 | iMac14,1 | Intel Core i5/i7 | ||
| iMac 21.5-inch Late 2015 | A1418 | iMac16,1 | Intel Core i5 |
About this part
The Power Supply Unit (PSU) 185W (Apple part number 661-7111) is a genuine Apple part that fits the iMac (Retina 4K, 21.5-inch, 2019), iMac (Retina 4K, 21.5-inch, 2017), iMac (21.5-inch, 2017) and 8 other models. The internal power supply converts wall power for the logic board and every component inside the Mac.
Before you order, match the model identifier on your Mac (Apple menu, About This Mac, System Report) to one of the identifiers listed for this part: iMac19,2, iMac18,2, iMac18,1, iMac16,2, iMac14,4, iMac14,3 and 3 other models.
Signs the power supply needs replacing
- No power at all, even with a known good cable
- Shutdowns under load or when a drive spins up
- A buzzing or clicking sound from the power supply
- A burnt smell or visible damage near the power inlet
Not sure the power supply is the real cause? We diagnose the Mac before replacing anything, and we can install this genuine Apple part for you through our iMac repair service, in our Tampa shop or by mail-in repair from anywhere in the US.
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