O.S. Engine OS74002200 GT55 Plug Cap Set for RC Model Ignition  [OS74002200]

GT55 Ignition Cap Brief

The O.S. Engine OS74002200 Plug Cap Set GT55 is offered as a direct replacement set intended to serve the ignition connection of GT55-designated items in model engines.

It is presented as a maintenance component focused on restoring proper electrical contact and insulation integrity, not as an aftermarket performance item.

To install, remove the existing cap and press the replacement onto the plug electrode until it is seated; then inspect wiring routing and insulation to prevent chafing or exposure that could compromise the connection.

For maintenance, check caps for signs of deterioration such as cracks or loss of elasticity and replace as needed; reverify connections after any ignition lead or exhaust changes to avoid intermittent firing on the track or bench.

Provided as an OEM replacement, the OS74002200 Plug Cap Set GT55 fulfils a routine maintenance role for GT55-compatible ignition systems; replace caps when electrical contact or insulation integrity is questionable.