Equivalents for the Wellman spark plug W404
Meet the Wellman W404 spark plug : heat range hot, reach 15.2–19.0 mm. Find its 171 compatible and interchangeable spark plugs: cross-references for NGK, Bosch, Champion, Denso and every brand.
Technical information Wellman W404 spark plug
- Resistor
- no
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What can replace a Wellman W404 spark plug?
The Wellman W404 is interchangeable with: Bosch CH229, Champion W404, Denso G130, Bosch GLP051, Bosch O25O2O213O, Champion CH229. These spark plugs share the same mounting (thread, seat) and heat range.
What are the specifications of the Wellman W404?
Reach 15.2–19.0 mm, Heat range Hot, 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.