Rayesyth Ignition Coil & Voltage Rectifier Kit for Onan P-Series (166-0761 & 191-2227) — Direct-Fit, Restores Spark & Charging

Rayesyth's kit bundles a direct-fit ignition coil (166-0761) and voltage rectifier (191-2227) made to restore spark and charging on Onan P-Series engines used in John Deere equipment.

If your mower, generator, or small engine powered by an Onan P216G/P218G/P220G is showing hard starts, intermittent spark, or a battery that won't hold charge, replacing both the ignition coil and rectifier together prevents part-mismatch and reduces downtime. This matched replacement set covers common cross-reference numbers and is built for outdoor equipment that faces vibration, temperature swings, and seasonal storage.

How will this coil fix starting and spark problems?

The Rayesyth ignition coil supplied (cross-references include 166-0761, 166-0820, 166-0772, and others) delivers the high-voltage pulse required for reliable spark in points-style Onan P-Series engines. A worn or cracked coil leads to weak or no spark, causing hard starts and stalling; swapping in a fresh coil restores ignition energy and consistency.

• Replaces common worn coil part numbers for direct compatibility.
• Designed for points ignition systems on P216G/P218G/P220G engines.
• Reduces misfires and mid-season sputtering from coil degradation.
• Durable construction to resist vibration and temperature cycling.

Why include the voltage rectifier with the coil?

Battery drain, dimming lights, or unstable voltage often trace to a failing rectifier, not just the coil. The kit’s 191-2227 rectifier (also cross-ref 191-2106, 191-1748, 191-2208) restores proper DC charging and prevents over-discharge, so the engine charges reliably and electrical accessories perform normally.

• Restores regulated DC output for battery charging on P-Series 16–20 HP engines.
• Reduces constant battery drain caused by rectifier failure.
• Fits Onan P-Series applications found in many John Deere machines.
• Built to handle outdoor temperature and humidity exposure.

Which machines and engines will these parts fit?

This combined replacement is intended for John Deere equipment using Onan P216G, P218G, and P220G engines and a range of points-model designations (BF, BFA, BG, BGA, BGE, B43E, B43G, B43M, B48G, CCK series, NHA–NHP, N52M, etc.). Always verify the original part numbers on your unit before ordering to ensure compatibility.

• Targeted for Onan P-Series 16HP–20HP engines in John Deere machines.
• Cross-reference list provided to match OEM numbers and equivalents.
• Fits many points-based ignition models common in lawn tractors and small generators.
• Check existing part numbers and engine model plate before installation.

How durable and weather-resistant are these components?

Rayesyth designs these components to withstand the environmental stresses typical of outdoor power equipment—temperature swings, vibration, moisture exposure, and seasonal storage. They are not sealed like immersion-rated devices, but they are engineered for long service life in lawn and light industrial conditions.

• Heavy-duty materials chosen for vibration and heat tolerance.
• Corrosion-resistant finishes on electrical contacts and mounting points.
• Suitable for seasonal use, storage, and repeated start cycles.
• Intended as a like-for-like replacement for OEM parts.

Who is this for: This Rayesyth ignition coil and rectifier kit is ideal for DIY technicians, landscapers, property managers, and owners of John Deere tractors or small generators with Onan P216G/P218G/P220G engines who want a reliable, matched replacement set. If you experience poor starting, intermittent spark, or charging problems and prefer a single-purchase solution that matches common OEM cross-references, this kit simplifies maintenance and reduces the risk of installing incompatible components.