21" 166-0859-02 30" 166-0859-01 Ignition Coil Pack For Cummins Onan RV Generator
21" 166-0859-02 30" 166-0859-01 Ignition Coil Pack For Cummins Onan RV Generator
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Ignition Coil Pack for Cummins Onan
This ignition coil pack delivers reliable spark for Cummins Onan RV generators, directly replacing part numbers 166-0859-01 (30-inch lead) and 166-0859-02 (21-inch lead).
Overview
The Ignition Coil Pack for Cummins Onan generators ensures consistent ignition performance, providing a strong spark for reliable starts and smooth operation in RV power systems. This ignition coil pack is designed as a direct-fit replacement for multiple Onan generator models, restoring lost efficiency and preventing misfires. Technicians and DIY owners trust this ignition coil pack for dependable generator maintenance.
Built For Performance
- High-output windings deliver consistent spark energy across the RPM range.
- Premium-grade copper core reduces resistance and improves conductivity.
- Heavy-duty epoxy encapsulation resists vibration and thermal cycling.
- Precision-molded connector ensures a secure, weather-tight plug fit.
- Engineered to match or exceed OEM coil specifications for long service life.
Fits These Machines
- for Cummins Onan MicroQuiet 4000
- for Cummins Onan Marquis 5000
- for Cummins Onan RV QG 4000
- for Cummins Onan RV QG 5500
- for Cummins Onan Emerald Plus 4000
- for Cummins Onan KY 4000
On-The-Job Use
- RV generator ignition system repair
- Mobile power generation maintenance
- Emergency backup power for campers
- Off-grid power system servicing
- Fleet generator preventive maintenance
Specs At A Glance
| Part Number(s) | 166-0859-01 (30-inch lead), 166-0859-02 (21-inch lead) |
| Wire Lead Length | 30 inches and 21 inches |
| Type | Ignition Coil Pack |
| Compatibility | Cummins Onan RV generators |
Good To Know
Q: Does this coil pack require modifications to install? A: No, this is a direct-fit replacement for the specified Onan generators; simply remove the old coil and connect the matching lead length.
Q: How can I identify which lead length I need? A: Check the existing coil's lead measurement. The 21-inch version (166-0859-02) and 30-inch version (166-0859-01) are identical in function, so match the length to your unit.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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