{"product_id":"db-electrical-12v-55a-high-output-mercruiser-alternator-direct-fit-400-46022-v1-pulley","title":"DB Electrical 12V 55A High-Output MerCruiser Alternator Direct-Fit 400-46022 V1 Pulley","description":"\u003cp\u003e\u003cstrong\u003eThe DB Electrical 400-46022 is a direct-fit, high-output 12V\/55A alternator engineered to replace MerCruiser and other marine OEM units with reliable charging and corrosion-resistant hardware.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen a boat’s charging system starts underperforming, swapping to a dependable aftermarket alternator that matches OEM fit and function gets you back on the water fast. The DB Electrical 400-46022 is built to mirror original MerCruiser alternator specifications while offering plated components and marine-conscious features for long-term durability. It’s compatible with a wide range of MerCruiser, OMC, Mercury Marine, Crusader and other marine-specific models, making it a practical, cost-effective replacement choice.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and models will this alternator replace?\u003c\/h3\u003e\n\u003cp\u003eThe 400-46022 is designed as a direct replacement for many MerCruiser models spanning 1970s through 1990s production, and it fits a variety of other marine makes and aftermarket part numbers. Before purchase, verify your engine model and year against the full compatibility list to ensure a correct match. It also cross-references common OEM numbers so installers can confirm fitment quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible MerCruiser models: 120, 140, 165, 175, 185, 198 MIE, 200, 205, 228, 230, 255 MIE, 260, 3.0\/3.0Lx, 300 Tempest, 320 (Efi), 330, 340 MIE, 350 Mag Alpha and related years.\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with Crusader, Lucas (1985-on), Mando (1985-on), OMC (1985-on), Pleasurecraft, and more.\u003c\/li\u003e\n  \u003cli\u003eCross-references: Mercury Marine part numbers (e.g., 12449, 78402, 817119 series), Lester, Cushman, EMP, Mando lists provided in product notes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the electrical and mechanical specifications?\u003c\/h3\u003e\n\u003cp\u003eThis alternator provides 12 volts at a rated 55 amperes and uses a V1 pulley class for belt compatibility. The internal regulator is an IR-type and it features an EF-style fan for effective cooling. Those specs mirror many factory MerCruiser alternators so electrical output and pulleys align with original equipment expectations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVoltage: 12V; Amperage: 55A\u003c\/li\u003e\n  \u003cli\u003ePulley Class: V1 — check belt size and pulley alignment before installation\u003c\/li\u003e\n  \u003cli\u003eRegulator: Integrated IR (internal regulator)\u003c\/li\u003e\n  \u003cli\u003eFan Type: EF-style fan for consistent airflow and heat dispersion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is this alternator protected for marine environments?\u003c\/h3\u003e\n\u003cp\u003eDB Electrical builds this unit with plated fans, pulleys, and hardware to reduce corrosion risk in saltwater or humid conditions. The design also incorporates flame arrestor screens to meet marine-related safety considerations and to align with SAE guidance used in marine applications. These protections help extend service life compared with uncoated components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlated metal components resist rust and saltwater corrosion\u003c\/li\u003e\n  \u003cli\u003eFlame arrestor screens included for marine safety alignment\u003c\/li\u003e\n  \u003cli\u003eHardware packaged to match direct-fit installation requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DB Electrical 400-46022 suits boat owners, marine mechanics, and fleet operators who need a dependable, OEM-style alternator replacement for older MerCruiser and compatible engines. It’s ideal if you want an aftermarket unit that matches original specifications (12V\/55A, V1 pulley, IR regulator) while offering enhanced corrosion resistance and a wide cross-reference list to simplify parts sourcing. Verify model-year compatibility and pulley\/belt alignment to ensure a straightforward swap and reliable charging performance.\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: Is the 400-46022 a direct replacement for MerCruiser alternators?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s built as a direct-fit OEM replacement for many MerCruiser models—confirm engine model\/year against the compatibility list before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the voltage and amperage ratings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This alternator is rated 12 volts and 55 amperes with an internal IR regulator and V1 pulley class.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DB Electrical","offers":[{"title":"Default Title","offer_id":48080231268510,"sku":"B00KGIBD5W","price":180.35,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/db-electrical-alternator-front-view.jpg?v=1785779930","url":"https:\/\/northtrailauto.ca\/products\/db-electrical-12v-55a-high-output-mercruiser-alternator-direct-fit-400-46022-v1-pulley","provider":"North Trail Auto","version":"1.0","type":"link"}