XPARTCO MWC21105 Microwave High Voltage Capacitor, 2100 VAC 1.05 µF
The XPARTCO MWC21105 is an aftermarket replacement high-voltage capacitor for microwave ovens. It stores and releases electrical energy in the high-voltage circuit that powers the magnetron, the part that actually generates the heat. When the capacitor weakens or fails, the microwave can stop heating while the display, turntable, and light still work normally. It can also hum, trip the breaker, or blow the fuse.
Rated 2100 VAC and 1.05 µF, this oval, bracket-mounted capacitor has 1/4" male terminals and fits a wide range of microwaves from GE, Whirlpool, Samsung, LG, Frigidaire, Panasonic, Sharp, Kenmore, and other brands. Because the same capacitor was used under many manufacturers' part numbers, it carries a long cross-reference list; see the Replaces list below. Each order includes 1 capacitor.
Quick Answer
The XPARTCO MWC21105 Microwave Capacitor fixes a microwave that runs but doesn't heat, hums, or trips the breaker or blows the fuse because of a failed high-voltage capacitor. 2100 VAC, 1.05 µF, oval, bracket-mounted, 1/4" male terminals. Classic symptom: the light, display, and turntable all work, but food comes out cold. This part holds a dangerous electrical charge, so it should be installed by a qualified service technician.
Common Problems This Part Fixes
- Microwave runs but doesn't heat the food
- Humming or buzzing noise from the microwave when it's running
- Microwave trips the circuit breaker or blows the internal fuse
- Weak or inconsistent heating
- Visible bulging, leaking, or burn marks on the old capacitor
Cross Reference Information
Part numbers can change over a product's lifecycle as manufacturers update designs or release new appliance models. For your convenience, we've included any known superseded, alternate, or cross-reference part numbers that match this item.
Replaces Part Numbers
This capacitor directly replaces the following part numbers:
WB27X11033, PD00030313, WB27X10308, WB27X10520, WB27X10701, WB27X10747, WB27X10805, 1474118, EAP2353613, AP4412060, PS2353613, W10850446, PD00032266, 4383732 EAP11731152, AP5999188, PS11731152, WB27X29988, PD00064298, 4586376, EAP12296267, AP6286260, PS12296267, 0CZZW1H004C, PD00032660, 1271742, EAP3517242, AP5199046, PS3517242, W10705215, W11335495, AP5956548, PS10063950, W11213318, PD00061266, EAP12349322, 4844491, AP6329441, PS12349322, WP8184813, PD00028888, EAP731741, 4437142, AP6011903, PS731741, WP4375020, PD00039292, EAP11742447, 4434444 AP6009291, PS11742447, 56002017, 56001435, AP4396772, 0CZZW1H004S, PD00008613, EAP3538829, 1271749 AP5199046, PS3538829, 0CZZW1H004K, 0CZZW1H001L, 1271745, EAP3517244, AP5199046, PS3517244
This capacitor was sold under the part numbers of many manufacturers, including GE (WB27X series), Whirlpool (W-series and WP-series), and LG and Samsung (0CZZW1H series), plus third-party catalog numbers (AP, PS, EAP, PD).
Note: The 1.0 µF capacitor (13QBP21100) is a different value and is not interchangeable with this 1.05 µF part. Always match the capacitance and voltage marked on your original capacitor.
Compatibility
This capacitor is used on microwave ovens from many brands, including:
- GE, Kenmore, Whirlpool, Frigidaire, and Electrolux
- Samsung, LG, and Goldstar
- Panasonic and Sharp
- Bosch, Magic Chef, Crosley, Admiral, Gibson, and Nrg
Note: Compatibility depends on matching the capacitance (1.05 µF), voltage rating (2100 VAC), and the physical size and terminal layout of your original capacitor, not just the brand. Check the values printed on your old capacitor, or contact our support team with your model number and we'll verify fit before you order.
Key Features
- Aftermarket replacement microwave high-voltage capacitor
- 2100 VAC, 1.05 µF rating
- Oval body with 1/4" male terminals and bracket mounting
- Restores heating on microwaves with a failed capacitor
- Cross-references to GE, Whirlpool, Samsung, LG, and other OEM numbering
- 1 capacitor per order
Product Specifications
| Part Number | XPMWC21105 |
| OEM Part Number | WB27X29988, W10850446, 0CZZW1H004C |
| Part Type | Microwave High Voltage Capacitor |
| Condition | Aftermarket Replacement |
| Voltage Rating | 2100 VAC |
| Capacitance | 1.05 µF (1.05 mfd) |
| Shape | Oval |
| Terminals | 1/4" Male |
| Mounting | Bracket-Mounted |
| Quantity | 1 Capacitor |
Installation Notes
Frequently Asked Questions
My microwave runs but doesn't heat — is the capacitor the problem?
A failed high-voltage capacitor is one common cause of a microwave that runs but doesn't heat. Other high-voltage parts, such as the diode and the magnetron, can cause the same symptom, so a technician will usually test them together before replacing parts.
Is it safe to replace this myself?
We recommend a qualified service technician install this part. A microwave capacitor can retain a lethal electrical charge even when the microwave is unplugged, and the high-voltage circuit is dangerous to work around without the right training and tools.
Can I use a capacitor with a different capacitance or voltage?
No. Use the same rating as your original. This listing is a 1.05 µF, 2100 VAC capacitor. A 1.0 µF capacitor (13QBP21100) is a different part and is not a substitute.
What's included in the order?
1 high-voltage capacitor. It does not include a diode, fuse, or other components.
Shop With Confidence
A U.S.-based appliance parts retailer specializing in genuine OEM and high-quality replacement parts. We stock components for all major appliance brands and offer fast shipping from our U.S. warehouse. Our team is available to help verify compatibility before you purchase.
