{"product_id":"gaoshun-kohler-25-403-39-s-voltage-regulator-rectifier-25-403-32-s","title":"GAOSHUN Kohler 25-403-39-S Voltage Regulator Rectifier 25-403-32-S","description":"\u003ch2\u003eOverview and compatibility\u003c\/h2\u003e\n\u003cp\u003eMeet the GAOSHUN voltage regulator rectifier crafted for Kohler charging systems. This compact, sturdy unit is designed to align with Kohler parts 25-403-39-S and 25-403-32-S, and it serves as a modern replacement for older numbers. When installed, it supports a clean 12-volt output across a 20-30 amp range, helping your engine’s electrical system stay steady through the start sequence and everyday operation. The result is a more reliable electrical backbone for lighting, gauges, and accessory loads on compatible Kohler engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Kohler Part # 25-403-39-S and 25-403-32-S\u003c\/li\u003e\n  \u003cli\u003eReplaces older parts: 25-403-08-S, 25-403-20-S, 25-403-21-S\u003c\/li\u003e\n  \u003cli\u003eCompatible with Kohler engines CH730-0165, CH730-0170, ECH749, ECV740 and related models\u003c\/li\u003e\n  \u003cli\u003eElectrical spec: 20-30 amp, 12 volt\u003c\/li\u003e\n  \u003cli\u003ePackage includes: 1 regulator, 1 cable, 1 screw, 1 gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat to expect during installation\u003c\/h2\u003e\n\u003cp\u003eDesigned for straightforward replacement, this regulator ships with essential hardware, helping you refresh a key electrical component without hunting for compatible parts. The included gasket and mounting hardware support a snug, vibration- resistant fit, while the cable ensures a tidy routing path in typical Kohler layouts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: regulator, cable, screw, gasket\u003c\/li\u003e\n  \u003cli\u003eEasy swap for compatible Kohler engines\u003c\/li\u003e\n  \u003cli\u003eHeat and vibration are common challenges in small engines; a compact, durable housing helps manage both\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReal-world use and benefits\u003c\/h2\u003e\n\u003cp\u003eIn everyday riding mower or generator setups, this regulator acts behind the scenes to help stabilize the charging circuit. You may notice steadier electrical behavior during peak load, consistent lighting, and smoother operation of ancillary electronics. Results depend on the overall health of the charging system, the engine condition, and proper installation.\u003c\/p\u003e\n\u003cp\u003eThe design emphasizes reliability and compatibility, with a compact form that fits into tight engine compartments and a finish that resists the bumps and heat of outdoor use. While it does not promise guaranteed outcomes, it is positioned as a practical upgrade for users seeking a modern replacement that aligns with Kohler specifications.\u003c\/p\u003e\n\u003ch2\u003eWhy choose GAOSHUN\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement part aligned with Kohler specs for seamless compatibility\u003c\/li\u003e\n  \u003cli\u003eClear documentation of part numbers and engine compatibility\u003c\/li\u003e\n  \u003cli\u003eRugged construction designed to withstand vibration and heat in outdoor equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you operate a Kohler-powered machine that relies on a stable 12-volt supply, this GAOSHUN regulator offers a practical path to refreshing the charging system without overhauling the entire electrical setup. Consider it as a thoughtful upgrade option within the Kohler parts ecosystem.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Kohler engines is this voltage regulator compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for Kohler CH730-0165 and CH730-0170 engines, plus ECH749 and ECV740 family models, including related 25-403-39-S\/25-403-32-S parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the package?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: 1 voltage regulator, 1 cable, 1 mounting screw, and 1 gasket.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GAOSHUN","offers":[{"title":"Default Title","offer_id":42468659593301,"sku":"B09NJD39MW","price":41.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/gaoshun-kohler-25-403-39-s-regulator-front-view.jpg?v=1778079078","url":"https:\/\/plentytorque.co.uk\/products\/gaoshun-kohler-25-403-39-s-voltage-regulator-rectifier-25-403-32-s","provider":"PlentyTorque","version":"1.0","type":"link"}