{"product_id":"caltric-starter-for-john-deere-100-series-tractors-12v-ccw-14-tooth-hardened-steel-gear-d100-d105-d110-d120","title":"Caltric Starter for John Deere 100 Series Tractors — 12V CCW, 14‑Tooth Hardened Steel Gear (D100\/D105\/D110\/D120)","description":"\u003cp\u003e\u003cstrong\u003eCaltric replacement starter built to fit John Deere 100‑series lawn tractors (D100, D105, D110, D120) — 12V, CCW rotation, with an improved 14‑tooth steel drive gear.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your John Deere 17.5–21 HP tractor is struggling to crank or the original starter has worn teeth, this Caltric unit offers a direct-fit aftermarket replacement. It matches key specifications and common OEM part numbers so it installs with minimal modification. The improved steel 14‑tooth gear is designed for greater durability than softer original gears, and the 12‑volt, counterclockwise (CCW) rotation aligns with the factory configuration for these models.\u003c\/p\u003e\n\n\u003ch3\u003eWill this starter fit my John Deere 100 series tractor?\u003c\/h3\u003e\n\u003cp\u003eCheck model and engine details before ordering: this starter is intended for John Deere D100 (17.5 HP), D105 (17.5 HP), D110 (19.5 HP) and D120 (21 HP) units in the 100 series. Confirm the rotation (CCW) and tooth count (14) match your existing starter to avoid compatibility issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits models: D100, D105, D110, D120 (100 series)\u003c\/li\u003e\n  \u003cli\u003eEngine power range: 17.5–21 HP\u003c\/li\u003e\n  \u003cli\u003eRotation: 12V, counterclockwise (CCW)\u003c\/li\u003e\n  \u003cli\u003eDrive: 14‑tooth improved steel gear\u003c\/li\u003e\n  \u003cli\u003eOEM-referenced part numbers included for cross-checking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the improved 14‑tooth steel gear?\u003c\/h3\u003e\n\u003cp\u003eThe starter uses a hardened steel 14‑tooth drive gear rather than a softer material, which helps resist chipping and premature wear under load. That upgrade targets longer service life and more consistent engagement with the flywheel, especially on older tractors where starter engagement quality is critical.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHardened steel gear resists wear and tooth rounding\u003c\/li\u003e\n  \u003cli\u003eImproved engagement with flywheel teeth reduces slipping\u003c\/li\u003e\n  \u003cli\u003eDesigned for repeated starts across typical lawn tractor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat electrical and mechanical specs should I confirm before replacing?\u003c\/h3\u003e\n\u003cp\u003eEnsure your tractor’s electrical system is compatible: this starter runs on 12 volts and is engineered for counterclockwise rotation. Physically compare mounting points, electrical terminals, and the gear tooth count to your original unit to confirm a straightforward replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVoltage: 12 V standard automotive\/mower system\u003c\/li\u003e\n  \u003cli\u003eRotation: CCW (counterclockwise)\u003c\/li\u003e\n  \u003cli\u003eMount pattern and terminal placement designed for direct-fit swap\u003c\/li\u003e\n  \u003cli\u003ePart numbers for cross-reference: 593934, 693551, BS-593934, LG693551, SE501848, MIA13018\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there installation tips or things to look out for?\u003c\/h3\u003e\n\u003cp\u003eBefore removing the old starter, disconnect the battery to avoid short circuits. Compare the posted product picture carefully to your existing starter—verify stud\/bolt locations and the gear profile. If the flywheel teeth are damaged, replace or repair them first to prevent new starter gear damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways disconnect battery prior to work\u003c\/li\u003e\n  \u003cli\u003eMatch gear tooth count and rotation before purchase\u003c\/li\u003e\n  \u003cli\u003eInspect flywheel teeth for damage to prevent rapid gear wear\u003c\/li\u003e\n  \u003cli\u003eKeep hardware and wiring routing identical to factory setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Caltric starter is intended for owners, repair shops, and DIY mechanics servicing John Deere 100‑series lawn tractors that require a 12V CCW starter with a 14‑tooth gear. It suits users who need a robust replacement matching OEM specifications and common part numbers (e.g., 593934, 693551, BS593934). If you want a direct‑fit aftermarket option with an upgraded steel drive gear, this unit is a practical choice — just verify fitment against your tractor before ordering.\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 this starter compatible with John Deere D110 tractors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It fits John Deere D110 (19.5 HP) provided your original starter is 12V, CCW rotation with a 14‑tooth drive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What part numbers does this Caltric starter replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Common cross‑references include 593934, 693551, BS‑593934, LG693551, SE501848, and MIA13018.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Caltric","offers":[{"title":"Default Title","offer_id":48079856664734,"sku":"B0854P48WP","price":68.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/caltric-starter-front-view.jpg?v=1785773240","url":"https:\/\/northtrailauto.ca\/products\/caltric-starter-for-john-deere-100-series-tractors-12v-ccw-14-tooth-hardened-steel-gear-d100-d105-d110-d120","provider":"North Trail Auto","version":"1.0","type":"link"}