LB05EZ Resistor Sparkplug Cap for Ski-Doo MXZ 440 1994-2000

Resistor Sparkplug Cap for Ski-Doo MXZ 440

This resistor sparkplug cap is a replacement ignition component for Ski-Doo MXZ 440 snowmobiles from 1994 through 2000, cross-referencing LB05EZ, and it delivers a secure, suppressed spark connection between the plug wire and the spark plug.

Overview

This resistor sparkplug cap is built to replace a worn or cracked original on Ski-Doo MXZ 440 machines. The resistor sparkplug cap suppresses radio frequency interference while keeping spark energy consistent for reliable starts and smooth running, making it a smart service part for riders and small engine mechanics maintaining older sleds.

Built For Performance

• Resistor design limits ignition noise that can disrupt on-board electronics
• LB05EZ reference matches common OEM-style fitment for the listed models
• Firm push-on fit keeps the cap seated on the plug terminal under vibration
• Durable insulating body resists heat, fuel vapor, and cold-weather cracking
• Straightforward replacement for routine tune-ups and ignition troubleshooting

Fits These Machines

• for Ski-Doo MXZ 440, 1994
• for Ski-Doo MXZ 440, 1995
• for Ski-Doo MXZ 440, 1996
• for Ski-Doo MXZ 440, 1997
• for Ski-Doo MXZ 440, 1998
• for Ski-Doo MXZ 440, 1999
• for Ski-Doo MXZ 440, 2000

On-The-Job Use

• Seasonal ignition tune-ups on trail sleds
• Diagnosing misfires and hard starting in cold conditions
• Rebuilding plug wires and coil connections
• Keeping spare ignition parts in the trail tool kit

Specs At A Glance

Good To Know

Q: How do I know if my sparkplug cap needs replacing? A: Cracks, loose fit on the plug, corrosion inside the boot, or a sudden misfire often point to a failed cap. Replacing it is a low-cost step before chasing larger ignition problems.

Q: Does the resistor inside affect performance? A: The resistor suppresses electrical noise without noticeably reducing spark at the plug on these engines. It is the stock-style design for the listed Ski-Doo models.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.