{"id":170,"date":"2026-06-22T12:21:05","date_gmt":"2026-06-22T04:21:05","guid":{"rendered":"https:\/\/accessories.huaquanpower.net\/?page_id=170"},"modified":"2026-06-22T12:21:05","modified_gmt":"2026-06-22T04:21:05","slug":"marathon-parts","status":"publish","type":"page","link":"https:\/\/accessories.huaquanpower.net\/?page_id=170","title":{"rendered":"Marathon Alternator Parts"},"content":{"rendered":"<h2>Marathon Alternator Parts for Diesel Generators<\/h2>\n<p>Marathon Electric (now part of Regal Rexnord) manufactures high-quality alternators for standby and prime power generator applications. Known for their robust design and excellent motor starting capability, Marathon alternators are widely used across North America and global markets. At Huaquan Power, we supply a comprehensive range of <strong>Marathon alternator parts<\/strong> for MP and MAX series alternators used in generator sets from 5kVA to 2000kVA.<\/p>\n<h3>AVR and Voltage Regulation<\/h3>\n<ul>\n<li><strong>Automatic Voltage Regulators<\/strong> \u2014 Marathon SE350, SE500, DVR2000, and Marathon-Digital AVR units<\/li>\n<li><strong>Droop Transformers<\/strong> \u2014 Quadrature droop current transformers for parallel operation<\/li>\n<li><strong>Remote Voltage Adjustment<\/strong> \u2014 External voltage adjustment potentiometers and accessories<\/li>\n<li><strong>AVR Protection Components<\/strong> \u2014 Fuses, crowbar circuits, and overvoltage protection modules<\/li>\n<\/ul>\n<h3>Rotating Diode and Excitation Parts<\/h3>\n<ul>\n<li><strong>Rotating Diode Assemblies<\/strong> \u2014 Complete rectifier wheel assemblies for MP and MAX series alternators<\/li>\n<li><strong>Individual Diodes<\/strong> \u2014 Positive and negative rectifier diodes for component replacement<\/li>\n<li><strong>Surge Suppressors<\/strong> \u2014 Varistor assemblies protecting diodes from voltage transients<\/li>\n<li><strong>Excitation Components<\/strong> \u2014 Exciter stators, rotors, and permanent magnet generators<\/li>\n<\/ul>\n<h3>Stator and Rotor Components<\/h3>\n<ul>\n<li><strong>Stator Assemblies<\/strong> \u2014 Complete wound stator assemblies for Marathon alternators<\/li>\n<li><strong>Main Rotors<\/strong> \u2014 Balanced main rotor assemblies for direct replacement<\/li>\n<li><strong>Bearings<\/strong> \u2014 Drive-end and non-drive-end bearings for all Marathon alternator models<\/li>\n<li><strong>Bearing Caps and Retainers<\/strong> \u2014 Bearing housing caps, retainers, and grease seals<\/li>\n<\/ul>\n<h3>Terminal Box and Electrical Components<\/h3>\n<ul>\n<li><strong>Terminal Blocks<\/strong> \u2014 Main output terminal boards and connection hardware<\/li>\n<li><strong>Current Transformers<\/strong> \u2014 Metering and protection CTs for alternator monitoring<\/li>\n<li><strong>Anti-Condensation Heaters<\/strong> \u2014 Space heaters for moisture prevention during standby<\/li>\n<li><strong>Cable Entry Glands<\/strong> \u2014 IP55 cable entry components for weather-protected installations<\/li>\n<\/ul>\n<h3>Mechanical and Cooling Parts<\/h3>\n<ul>\n<li><strong>Cooling Fans<\/strong> \u2014 Internal and external fan assemblies for proper alternator cooling<\/li>\n<li><strong>Adaptor Kits<\/strong> \u2014 SAE flywheel housing adaptor kits and coupling discs<\/li>\n<li><strong>Vibration Isolators<\/strong> \u2014 Rubber mounts and spring isolators for generator set vibration control<\/li>\n<li><strong>Air Filters and Guards<\/strong> \u2014 Air intake filters and rotating parts guards for safety compliance<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<h3>1. What Marathon alternator models do you support?<\/h3>\n<p>We supply parts for Marathon MP series (5-150kVA) and MAX series (150-2000kVA) alternators. This includes MP4, MP5, MP7, MAX40, MAX50, MAX60, and larger frame sizes. We also support the older MagnaPlus and Pancake series.<\/p>\n<h3>2. What AVR does my Marathon alternator use?<\/h3>\n<p>MP series alternators typically use the SE350 AVR, while MAX series alternators use the SE500 or DVR2000+ digital AVR. The DVR2000+ offers advanced features including programmable protection, VAR\/PF control, and communication capabilities. Check your alternator nameplate for the standard AVR reference.<\/p>\n<h3>3. Are Marathon alternator parts interchangeable with Stamford?<\/h3>\n<p>While some components (bearings, diodes) may share standard sizes, most Marathon parts are specific to Marathon alternator designs. AVRs, stator assemblies, and rotor assemblies are not interchangeable between brands. Always use model-specific parts for proper operation.<\/p>\n<h3>4. Do you stock Marathon alternator bearings?<\/h3>\n<p>Yes, we carry bearings for all Marathon alternator models. Common sizes include 6307, 6308, 6310, 6312, and 6314 series bearings. We supply both sealed and open-type bearings depending on your alternator&#8217;s lubrication system.<\/p>\n<h3>5. What warranty do you offer on Marathon alternator parts?<\/h3>\n<p>Genuine Marathon parts carry the manufacturer&#8217;s standard warranty. Our aftermarket replacement parts come with a 12-month warranty. We stand behind the quality of all parts we supply with full technical support.<\/p>\n<h2>Contact Us for Marathon Alternator Parts<\/h2>\n<p>For pricing, availability, and technical support on Marathon alternator parts:<\/p>\n<ul>\n<li>\ud83d\udcf1 WhatsApp: <a href=\"https:\/\/wa.me\/8615905360672\">+86 15905360672<\/a><\/li>\n<li>\ud83d\udce7 Email: <a href=\"mailto:huaquan@huaquanpower.com\">huaquan@huaquanpower.com<\/a><\/li>\n<li>\ud83c\udf10 Website: <a href=\"https:\/\/accessories.huaquanpower.net\">huaquanpower.net<\/a><\/li>\n<\/ul>\n<h2>Related Pages<\/h2>\n<ul>\n<li><a href=\"\/stamford-parts\/\">Stamford Alternator Parts<\/a><\/li>\n<li><a href=\"\/leroy-somer-parts\/\">Leroy Somer Alternator Parts<\/a><\/li>\n<li><a href=\"\/mecc-alte-parts\/\">Mecc Alte Alternator Parts<\/a><\/li>\n<li><a href=\"\/diesel-generator-parts\/\">Diesel Generator Parts Overview<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Marathon Alternator  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-170","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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