Cummins 1671638 Spark Plug for Onan Generators Gas LP Liquid LP Vapor

The Cummins 1671638 (167-1638) is a genuine Green Label OEM replacement spark plug designed specifically for Cummins Onan generator systems. This resistive spark plug is engineered to deliver reliable ignition for gasoline, LP liquid, and LP vapor fuel applications, ensuring smooth generator operation and peak performance.

Key Features:

• Genuine Cummins Green Label OEM part for guaranteed quality and warranty protection
• Resistive design helps prevent unexpected generator shutdowns without fault codes
• Pre-gapped to 0.036 inches for proper installation
• Copper core electrode material for optimal spark and conductivity
• 13/16-inch hex size with flat seat design
• Compatible with gasoline, LP liquid, and LP vapor fuel systems

Specifications:

• Manufacturer Part Number: 1671638 / 167-1638
• NGK Equivalent: BPR4EY
• Gap: 0.036 inches
• Heat Range: NGK 4
• Electrode Material: Copper
• Hex Size: 13/16 inch (spark plug), 5/8 inch wrench size
• Seat Type: Flat

Using genuine Cummins Green Label parts is essential for maintaining your Onan generator warranty and ensuring reliable performance. Non-resistive or aftermarket spark plugs can cause operational issues including shutdowns without diagnostic codes. This spark plug comes pre-gapped and ready to install, providing the precise spark needed for efficient combustion in your Onan genset.