---
product_id: 521915036
title: "70/5 uF 70+5 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool"
brand: "vexunga"
price: "$45.42"
currency: USD
in_stock: true
reviews_count: 8
category: "Vexunga"
url: https://www.desertcart.us/products/521915036-70-5-uf-70-5-mfd-370vac-or-440vac-dual
store_origin: US
region: United States of America
---

# 70+5 µF dual capacitance 370/440 VAC dual voltage -40℃ to +70℃ operating range 70/5 uF 70+5 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool

**Brand:** vexunga
**Price:** $45.42
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your AC with precision and ease — never sweat a replacement again!

## Quick Answers

- **What is this?** 70/5 uF 70+5 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool by vexunga
- **How much does it cost?** $45.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/521915036-70-5-uf-70-5-mfd-370vac-or-440vac-dual)

## Best For

- vexunga enthusiasts

## Why This Product

- Trusted vexunga brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Operates flawlessly from freezing -40℃ to scorching +70℃ without breaking a sweat.
- • **Trusted by Thousands:** Top-rated with 4.7 stars from over 6,600 users—your HVAC’s reliable upgrade.
- • **Compact & Robust Design:** Sleek 2.36" x 3.94" round form factor with durable polypropylene casing.
- • **Dual Voltage Powerhouse:** Seamlessly supports both 370V & 440V systems for ultimate compatibility.
- • **Precision Fit & Easy Swap:** Direct replacement with labeled terminals—no rewiring or adapters needed.

## Overview

The VEXUNGA 70/5 uF dual run start capacitor is a high-performance, direct-fit replacement designed for 370VAC and 440VAC air conditioning units. Featuring a durable polypropylene casing and a wide operating temperature range (-40℃ to +70℃), it ensures reliable motor start and fan operation. Its compact round design (2.36" diameter x 3.94" height) and labeled terminals make installation straightforward, restoring HVAC functionality with proven longevity and top user ratings.

## Description

Buy VEXUNGA 70/5 uF 70+5 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool: Capacitors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Accurate fit and reliable performance for an older Carrier furnace - This capacitor matched the specifications exactly and worked perfectly as a replacement for our 33-year-old Carrier furnace. Installation was straightforward — the terminals fit tightly, and the size matched the original component, so it mounted easily without modification. The build quality feels solid, with a sturdy aluminum casing and clean, well-fitted connectors. After installation, the furnace fan started running smoothly again, and the capacitor tested precisely on spec with a multimeter. It runs cool and stable even during extended operation. For older HVAC systems, this is an excellent replacement part — dependable, accurate, and well made. It restored full functionality immediately at a very reasonable price.
Review: Pretty good. - Works good and lasts. My AC fan went out and this was the problem. Got me through the summer, time will tell how long it lasts. Overall, not a bad choice for the price.

## Features

- VEXUNGA 70+5 uF ±6% 370/440 VAC CBB65 dual run start capacitor replacement for BOTH 370 & 440 Volt capacitors.
- 70/5 MFD Capacitor size measures ( 2.36inch / 60mm ) in Diameter x ( 3.94inch / 100mm ) in Height.
- Operating temperature: -40℃ to +70℃/-104℉ to +158℉. Frequency: 50/60 Hz.
- SUPER EASY to Replace: Direct replacement, No wiring or adapter changes required. AC Capacitor has three terminals on the top are labeled "Herm" for the compressor motor, "Fan" for the fan, and "C" for the common line.
- 70/5 uF Capacitor Replacement for P291-7053RS , P291-7054R , 27L633BZ3 , 27L633 , TRCD705 , C3705R , PRCFD705A , TRCFD705 , RC0133 , C4705R , CAP050700440CT , CAP050700440RTS , HC98JA071 , TT-CAP-70/5/440.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJDSCXBD |
| Best Sellers Rank | #968 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Electrical Capacitors |
| Brand | VEXUNGA |
| Brand Name | VEXUNGA |
| Capacitance | 70 Microfarad |
| Capacitance Tolerance | 6 |
| Customer Reviews | 4.7 out of 5 stars 6,608 Reviews |
| Included Components | NO |
| Item Dimensions W x H | 2.36"W x 3.94"H |
| Item Shape | Round |
| Manufacturer | VEXUNGA |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Maximum Voltage | 440 Volts |
| Mounting Type | Snap-In Mount |
| Operating Voltage | 440 Volts |
| Shape | Round |
| Upper Temperature Rating | 70 Degrees Celsius |

## Product Details

- **Capacitance:** 70 Microfarad
- **Brand:** VEXUNGA
- **Material:** Polypropylene
- **Shape:** Round
- **Operating Voltage:** 440 Volts

## Images

![70/5 uF 70+5 MFD 370VAC or 440VAC Dual Run Start Round A/C Capacitor CBB65 CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool - Image 1](https://m.media-amazon.com/images/I/61+O25fthuL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate fit and reliable performance for an older Carrier furnace
*by O***R on November 5, 2025*

This capacitor matched the specifications exactly and worked perfectly as a replacement for our 33-year-old Carrier furnace. Installation was straightforward — the terminals fit tightly, and the size matched the original component, so it mounted easily without modification. The build quality feels solid, with a sturdy aluminum casing and clean, well-fitted connectors. After installation, the furnace fan started running smoothly again, and the capacitor tested precisely on spec with a multimeter. It runs cool and stable even during extended operation. For older HVAC systems, this is an excellent replacement part — dependable, accurate, and well made. It restored full functionality immediately at a very reasonable price.

### ⭐⭐⭐⭐⭐ Pretty good.
*by A***A on January 8, 2026*

Works good and lasts. My AC fan went out and this was the problem. Got me through the summer, time will tell how long it lasts. Overall, not a bad choice for the price.

### ⭐⭐⭐⭐⭐ Easy fix that most home owners could do
*by E***E on June 27, 2025*

Watched a YouTube video of the most common Central Air not working fixes. I went out and checked mine as it has not worked a couple of years. Sure enough, the main fan was working, but touching the compressor tube, you could feel it pulling every second or so, but not starting. Removing the old part and measuring it, the fan side was good and the compressor side was bad. Watch some YouTube videos if you dont know how to do that. It's not difficult. Anyways, after kicking myself in the butt for 5 minutes straight, I ordered a replacement here on Amazon. Product arrived fine and appears to be a well built part. Steps to replace it: 1)To start, most units have an outdoor circuit breaker you can pull to de-energize the unit. Pull that and/or flip the switch for the CA unit in your main fuse box. Next, remove the side access port on the outside unit, usually just two screws to get access to where the starter cap and relays are. 2)Checked the old cap to make sure it was de-energized (Very important step!!!). Do not touch those wires if it's still energized! If the unit is truely powered down and you still measure voltage on the old cap, you may need to discharge the old cap. Remember though, there are TWO caps in one and you need to discharge BOTH. If either still has a charge, they could give you a serious bite. Not to scare you away from doing it, you just have to be safe. 3)Marked the color of the wires and where they plugged into on the old cap. Note:Take a couple of pictures of the old cap and what wire goes where on it. This can be good to reference later! 4)Unplugged all the wires from the old cap and loosened the strap holding it in, and removed it. 5)Fit the new cap in under the strap, tighten it down but not so tight that it could dent the new cap, and plugged the wires into the new cap in the same positions as the old cap. Note: In most cases, the compressor will plug into the terminal stamped HERM. The fan goes to Fan if stamped. There are often two wires that were on the same terminal on the old cap, and that is the common. Plug all the wires in and DOUBLE CHECK you did it right. Take a picture of the old one at the start if you're not sure. 6)Put the side access cover back on the unit. 7)Reinstall the circuit breaker. Set the thermostat to turn it on and hopefully you have nice cool air blowing in a few minutes! 8)Especially if this fixes it, a very important step is to order a second cap!!! Then you dont have to wait long if it goes out. These get stressed every time the fan or compressor turns on. They do go bad eventually, so just have a backup ready. You will hopefully get a good 3-5 years out of the cap. In the attached picture, the temp was 78, now 71. Spouse and kids are happy. Therefore. I am happy.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-19*