--- product_id: 508886374 title: "40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner" brand: "bluestars" price: "FREE" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.it/products/508886374-40-uf-mfd-370-440vac-round-run-start-capacitor-replacement store_origin: IT region: Italy --- # 40uF high capacitance 370-440VAC rated voltage -25℃ to 70℃ operating temp 40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner **Brand:** bluestars **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > ⚡ Power your AC motors with confidence — don’t let your cool down moments catch you off guard! ## Quick Answers - **What is this?** 40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner by bluestars - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/508886374-40-uf-mfd-370-440vac-round-run-start-capacitor-replacement) ## Best For - bluestars enthusiasts ## Why This Product - Trusted bluestars brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Eco-Friendly:** No PCBs and 10000AFC rating for explosion resistance and peace of mind - • **OEM-Grade Durability:** Crafted from premium aluminum, tested to meet strict OEM standards for longevity - • **Power Up with Precision:** 40uF capacitance ensures stable motor start and run performance - • **Voltage Ready for Anything:** Rated for 370-440VAC to handle demanding AC motor loads effortlessly - • **Built to Last Under Pressure:** Operates reliably from -25℃ to 70℃, perfect for all-season use ## Overview This 40uF/MFD Round Run Start Capacitor by Blue Stars is a premium replacement part designed for AC motors, including compressors and fan motors in air conditioners and heat pumps. Rated for 370-440VAC with a tight 5% tolerance, it delivers stable capacitance and low power loss across a wide temperature range (-25℃ to 70℃). Built with durable aluminum and free of harmful PCBs, it meets OEM standards and offers reliable, long-lasting performance with a 10000AFC explosion rating. ## Description SPECIFICATIONS The 40 uF/MFD 370-440V Round Run Capacitor is used for a compressor motor and a fan motor start-up and operation of AC motors with the frequency of 50Hz/60Hz such as Industrial Grade Replacement for Central Air-Conditioners, Heat Pumps, Condenser Fan Motors, and Compressors. It is small in size, lightweight, heat resistant, and anti-explosion. This capacitor will provide your electric motors with an outstanding electrical characteristic of high capacitance stability over time and temperature, and very low internal power loss.Capacitance: 40ufRated Voltage: AC 370-440VTolerance: 5%Shape: Round RunCapacitor Dimensions: 50mm x 105mmOperating temperature range: -25℃ to 70℃10000AFCNo PCBs Count on our 40 uF/MFD 370-440V Round Run Capacitor Replacement for an unrivaled mix of durability, convenient functionality, and great value for money. Click ‘Add to Cart’ now!If you are unsure our replacement part will fit your appliance model, you can ask us in Customer questions & answers section or contact us by visiting the Blue Stars LLC storefront -- click the "Blue Stars LLC" on a product page to get to the storefront -- then click the "Ask a question" link under Further Information. Select your reason, and then tell us about the question. Review: Fantastic - Fantastic product and helped my ac run better than when it was new. Review: Product Accurately Described - This product was exactly as described. Part was installed immediately and functioned properly. At the time of this review, part has only been in use for 1 week. Time will tell the quality of the unit. ## Features - ✅ MODEL NUMBER - 40 uF/MFD 370-440VAC Round Run Start Capacitor - ✅ SPECIFICATIONS - Capacitance: 40 uf; Rated voltage: AC 370-440V; Tolerance: 5%; Shape: Round Run; Capacitor dimensions: 50mm x 105mm; Operating temperature range: -25℃ to 70℃; 10000AFC; No PCBs - ✅ EXACT REPLACEMENT: It is a perfect replacement to solve cooling problems for your air conditioner and gear motor applications. - ✅ PREMIUM QUALITY - The replacement part is made from durable high-quality aluminum and well-tested by the manufacturer - Meets OEM standards - Ensures long-lasting and effective performance. This capacitor will provide your electric motors with an outstanding electrical characteristic of high capacitance stability over time and temperature, and very low internal power loss - ✅ MONEY-BACK GUARANTEE - For any reason, you're not completely satisfied, you can ask for a replacement or full refund, no questions asked ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BL77F3CY | | Brand | BlueStars | | Capacitance | 40 Microfarad | | Capacitance Tolerance | 5 | | Customer Reviews | 4.6 out of 5 stars 71 Reviews | | Item Shape | Round | | Manufacturer | BlueStars | | Manufacturer Part Number | [Upgraded] 40uf 370-440VAC | | Material | Aluminium | | Maximum Storage Temperature | 70 Degrees Celsius | | Maximum Voltage | 440 Volts | | Maximum storage temperature | 70 Degrees Celsius | | Model Number | [Upgraded] 40uf 370-440VAC | | Mounting Type | Snap-In Mount | | Number of Items | 1 | | Operating Voltage | 440 Volts | | Operating voltage | 440 Volts | | Shape | Round | | Upper Temperature Rating | 70 Degrees Celsius | ## Product Details - **Brand:** BlueStars - **Capacitance:** 40 Microfarad - **Material:** Aluminium - **Maximum storage temperature:** 70 Degrees Celsius - **Shape:** Round ## Images ![40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner - Image 1](https://m.media-amazon.com/images/I/71S7qns+uqL.jpg) ![40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner - Image 2](https://m.media-amazon.com/images/I/71B2K3BaDFL.jpg) ![40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner - Image 3](https://m.media-amazon.com/images/I/71AJCEEZJdL.jpg) ![40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner - Image 4](https://m.media-amazon.com/images/I/81h4BdqQOSL.jpg) ![40 uF/MFD 370-440VAC Round Run Start Capacitor Replacement Part by Blue Stars - Exact Fit for AC Motor Run or Fan Start and Cool or Heat Pump Air Conditioner - Image 5](https://m.media-amazon.com/images/I/81R8HemDwIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fantastic *by R***. on 16 July 2026* Fantastic product and helped my ac run better than when it was new. ### ⭐⭐⭐⭐⭐ Product Accurately Described *by J***Y on 27 May 2026* This product was exactly as described. Part was installed immediately and functioned properly. At the time of this review, part has only been in use for 1 week. Time will tell the quality of the unit. ### ⭐⭐⭐⭐⭐ Works *by J***R on 19 June 2026* Works in our Coleman Mach AC Unit. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/508886374-40-uf-mfd-370-440vac-round-run-start-capacitor-replacement](https://www.desertcart.it/products/508886374-40-uf-mfd-370-440vac-round-run-start-capacitor-replacement) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-09-10*