{"product_id":"dvparts-ignition-switch-for-new-holland-boomer-tractors-86405634-direct-fit-durable-oem-replacement","title":"DVPARTS Ignition Switch for New Holland Boomer Tractors — 86405634 Direct-Fit, Durable OEM Replacement","description":"\u003cp\u003e\u003cstrong\u003eDVPARTS Ignition Switch 86405634 is a replacement starter switch engineered to restore reliable ignition and electrical control for New Holland Boomer, T and TC series tractors and many Case models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis heavy-duty replacement ignition switch from DVPARTS offers a direct-fit solution when the original switch wears out or fails. Built to match the electrical and mechanical specifications of OEM parts, it accepts multiple part numbers (86405634, 86405635, 87577812, 86400226) and fits a wide range of agricultural tractors so you can get equipment back to work quickly. The design focuses on compatibility, durability, and straightforward installation to minimize downtime in the field.\u003c\/p\u003e\n\n\u003ch3\u003eWhich tractors will this ignition switch fit?\u003c\/h3\u003e\n\u003cp\u003eThis switch is compatible with many New Holland Boomer, T and TC series tractors as well as several Case and Farmall models. Before purchasing, compare your machine's part number or original switch shape to ensure correct fitment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits New Holland: BOOMER 2030, 2035, 3040, 3045, 3050 and T\/TC series like T2210–T2330, TC29D–TC35DA, TC40A–TC45DA.\u003c\/li\u003e\n\u003cli\u003eAlso fits Case models: D35–D45, DX29–DX45, Farmall 31\/35\/40\/45\/50, L350A.\u003c\/li\u003e\n\u003cli\u003eAccepts replacement part numbers 86405634, 86405635, 87577812, 86400226 for cross-reference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation for a replacement?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be direct — the switch replaces the original unit and connects to the same wiring harness when part numbers and mounting match. For safety, disconnect the battery before beginning and consult your tractor manual for panel removal steps.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit shape and mounting points for many Boomer\/T\/TC dashboards.\u003c\/li\u003e\n\u003cli\u003eWiring terminals match OEM layouts; verify terminal labels before reconnecting.\u003c\/li\u003e\n\u003cli\u003eBattery should be disconnected and polarity checked during replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build and reliability features to expect?\u003c\/h3\u003e\n\u003cp\u003eDVPARTS builds this ignition switch with materials suitable for agricultural use, balancing electrical contact integrity and mechanical wear resistance. It’s intended to restore dependable starting, accessory power selection, and secure off positions under typical farm conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable contact surfaces to resist arcing and wear from repeated starts.\u003c\/li\u003e\n\u003cli\u003eRobust housing to withstand vibration and dashboard mounting stress.\u003c\/li\u003e\n\u003cli\u003eManufactured to meet common OEM electrical specs for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this switch affect tractor electronics or accessories?\u003c\/h3\u003e\n\u003cp\u003eWhen installed correctly, the replacement switch should operate accessory circuits and ignition like the original, without altering system behavior. If your tractor has aftermarket electronics or modifications, verify load and wiring compatibility to prevent overcurrent or miswiring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRestores ignition, starter engage, and accessory positions per original design.\u003c\/li\u003e\n\u003cli\u003eWorks with standard electrical systems; check for aftermarket additions first.\u003c\/li\u003e\n\u003cli\u003eProperly crimped connectors and secure terminal seating reduce electrical issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This ignition switch is intended for farmers, landscapers, equipment mechanics, and owners of New Holland Boomer, T and TC series tractors or compatible Case and Farmall machines who need a reliable, OEM-alike replacement part. It’s a practical choice when the original switch fails, shows wear, or causes intermittent starting, and for workshops that service multiple tractor models and require cross-referenced part coverage.\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: Does this switch match OEM part 86405634?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It accepts part numbers 86405634, 86405635, 87577812, and 86400226 as cross-references.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install it myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, if you disconnect the battery and confirm terminal alignment; consult your tractor manual for panel removal steps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DVPARTS","offers":[{"title":"Default Title","offer_id":48085889187998,"sku":"B093L5T5HQ","price":46.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dvparts-ignition-switch-front-view.jpg?v=1785879601","url":"https:\/\/northtrailauto.ca\/products\/dvparts-ignition-switch-for-new-holland-boomer-tractors-86405634-direct-fit-durable-oem-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}