{"product_id":"caltric-ignition-coil-for-john-deere-100-series-105-107s-115-direct-fit-replacement-oem-cross-refs","title":"Caltric Ignition Coil for John Deere 100 Series (105\/107S\/115) — Direct-Fit Replacement, OEM Cross-Refs","description":"\u003cp\u003e\u003cstrong\u003eCaltric ignition coil designed as a direct-fit replacement for John Deere 100-series and select lawn tractor models, supplying the spark source required for reliable engine starting and consistent running.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your John Deere 105, 107S, 115 or any listed 100 Series model is experiencing hard starts, intermittent spark, or misfires, this Caltric ignition coil replaces the factory unit using equivalent mounting and electrical connections. Built to match the listed part numbers (AUC11822, MIA11422, MIA12716) and physical dimensions, it’s intended for owners who need a straightforward swap without modifying the tractor’s ignition system.\u003c\/p\u003e\n\n\u003ch3\u003eWhich John Deere models will this Caltric coil fit?\u003c\/h3\u003e\n\u003cp\u003eThis coil is compatible with a broad range of John Deere 100 Series and related lawn tractors. Confirm fitment by comparing the unit and part numbers before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits: John Deere 105, 107S, 115 and many 100 Series tractors\u003c\/li\u003e\n  \u003cli\u003eAlso fits: D100, D105, D110, D120, E110, L105, L107, L108, S100, S110, X105, X106, X107\u003c\/li\u003e\n  \u003cli\u003eCross-references: AUC11822, MIA11422, MIA12716 for accurate matching\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the dimensions and form factor compare to the original coil?\u003c\/h3\u003e\n\u003cp\u003eThe Caltric coil mirrors the original’s physical layout so it mounts and aligns with existing brackets and wiring harnesses. Key measurements help ensure the replacement will not interfere with surrounding components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 78.1 mm (3.07 in) — matches the original footprint\u003c\/li\u003e\n  \u003cli\u003eWidth: 49 mm (1.9 in) — accommodates factory brackets\u003c\/li\u003e\n  \u003cli\u003eInsulation outside diameter: 64 mm (2.51 in) — maintains clearance and electrical safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before installing the replacement coil?\u003c\/h3\u003e\n\u003cp\u003eVerifying that the part matches your existing coil and the tractor wiring prevents install surprises. Take a few measurements and visual checks to confirm a correct replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare the posted product photo to your existing coil for shape and terminal locations\u003c\/li\u003e\n  \u003cli\u003eConfirm part numbers and tractor model compatibility listed in the description\u003c\/li\u003e\n  \u003cli\u003eInspect mounting holes and electrical connectors for alignment and fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and are there installation tips?\u003c\/h3\u003e\n\u003cp\u003eEach order contains a single Caltric ignition coil ready for installation. Basic hand tools are usually sufficient; follow safe battery-disconnect procedures and refer to a service manual for torque specs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: 1x Caltric ignition coil, ready as a replacement unit\u003c\/li\u003e\n  \u003cli\u003eInstallation: disconnect battery, remove old coil, transfer mounting hardware, connect wires, test spark\u003c\/li\u003e\n  \u003cli\u003eAdvice: keep electrical connectors clean and secure to avoid intermittent faults\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Caltric ignition coil is aimed at owners, small-farm operators, and service technicians who maintain John Deere 100 Series and compatible lawn tractors and need an OEM-style replacement. It suits anyone seeking a like-for-like swap that preserves factory mounting, electrical connections, and dimensional fit—especially useful when restoring reliable ignition performance without modifying the tractor.\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 coil fit my John Deere 115 tractor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the Caltric coil lists compatibility with the John Deere 115 (100 Series). Match part numbers AUC11822\/MIA11422 to be sure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What should I compare before ordering?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compare the product photo, part numbers, and the coil’s mounting and terminal layout to your existing unit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Caltric","offers":[{"title":"Default Title","offer_id":48085555183774,"sku":"B0C9S8JF13","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/caltric-ignition-coil-front-view_6cf2e2ba-9bd3-41bd-a58f-c6b82e8e4e9a.jpg?v=1785873068","url":"https:\/\/northtrailauto.ca\/products\/caltric-ignition-coil-for-john-deere-100-series-105-107s-115-direct-fit-replacement-oem-cross-refs","provider":"North Trail Auto","version":"1.0","type":"link"}