Equivalents for the Flennor spark plug FG9921
Flennor FG9921, a spark plug : reach 15.2–19.0 mm, heat range medium. Browse its 137 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
Technical information Flennor FG9921 spark plug
- Resistor
- no
Buy this spark plug Flennor FG9921 — best retailers
Partner links: a purchase made through these links may earn us a commission, at no extra cost to you.
What can replace a Flennor FG9921 spark plug?
The Flennor FG9921 is interchangeable with: Bosch GLP094, Champion CH201, Denso DG180, Bosch GLPO94, Champion CH2O1, Champion GX4127. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Flennor FG9921?
Reach 15.2–19.0 mm, Heat range Medium, Resistor no, Seat Flat (gasket)
Cross-references and specifications are provided for guidance only. The wrench size can vary by brand, and some data is inferred from the plug code or an equivalent reference. Always check the vehicle manufacturer's recommendation before buying and fitting.