Caltric Ignition Coils for John Deere Riding Mowers — 2-Pack Replacement, OEM Fit & Direct Mount

Caltric ignition coils are a two-piece replacement set engineered to restore reliable spark to compatible John Deere lawn tractors and compact mowers.

If your John Deere model is listed among the compatible machines and you’re experiencing hard starts, misfires, or rough idling, replacing the ignition coil is a common maintenance step. This Caltric two-pack matches the OEM mounting pattern and electrical layout for a straightforward swap. Before installation, we recommend visually comparing the coil pictured here with your existing unit to confirm fit and connector alignment.

Which John Deere models will these Caltric coils work with?

These ignition coils are designed to fit a wide range of John Deere riding mowers and tractors. Compatibility covers many X-, Z-, L-, S-, E- series models as well as specified compact tractors. Check your tractor’s model number against the provided list and part numbers to ensure a proper match.

• Fits models including X167, X167R, X330, Z225, Z235, Z245, Z255, Z315E, Z325E, Z335E, Z335M, Z345M, Z345R, Z355E, Z355R, Z365R, Z375R
• Also compatible with older and related models: 107H, 135, 92H, D125–D170 series and E120–E180 series
• Part numbers referenced: MIA12788, LG691060, MIA12346 for cross-checking

How does the Caltric coil match the original equipment?

The replacement coil mirrors the OEM dimensions and mounting layout so it lines up with existing brackets and connectors. Electric terminals and spark output orientation follow common OEM layouts to simplify installation. Use the dimensions below to confirm clearances in your engine compartment.

• Length: 74 mm (2.91 in); Width: 59.1 mm (2.32 in)
• Mounting hole distance: 64.7 mm (2.54 in) for bolt alignment
• Sold as a set of 2 coils for machines requiring dual units

What should I know about installation and safety?

Installation is typically a basic mechanical task for those comfortable with small-engine maintenance. Always disconnect the battery or ignition source before removing the old coil to prevent shocks and accidental starts. If you’re uncertain, consult a service manual or a qualified technician for guidance.

• Turn off engine and remove spark plug wire or battery connection first
• Compare the included coil picture to your unit for connector and orientation match
• Tighten mounting bolts to manufacturer torque specifications where available

What performance can I expect after replacement?

Installing a correctly matched ignition coil should return proper spark delivery, improving start-up consistency and smoothing idle if a faulty coil was the cause. Results depend on the overall condition of the ignition system—spark plug, wires, and contacts should also be inspected. Replacing both coils when required helps maintain balanced engine operation.

• Restores consistent spark timing for better starting behavior
• Reduces misfires and rough idling related to weak or intermittent coils
• Recommended to check spark plugs and leads for a complete ignition tune-up

Who is this for: This Caltric two-pack of ignition coils is aimed at owners and technicians maintaining John Deere riding mowers, zero-turns, and small tractors listed in the compatibility list. It’s suitable for DIY mechanics comfortable with basic engine work, service shops replacing failed coils, and fleet managers wanting a matched pair for machines that use dual ignition coils. Always verify part numbers and compare the product photo to the unit you are replacing to ensure correct fit before purchasing.