Equivalents for the Bosch spark plug USR 4 AC
Bosch USR 4 AC is an automotive spark plug. Browse its 15 equivalents: compatible, interchangeable and replacement spark plugs across NGK, Bosch, Champion, Denso and many more.
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15 equivalents compatible with the Bosch USR 4 AC spark plug
No equivalent for this brand selection.
What can replace a Bosch USR 4 AC spark plug?
The Bosch USR 4 AC is interchangeable with: NGK CMR7H, Champion RZ7C, Brisk TR14C, Brisk TR14S, Torch AC7R, Torch CMR7H. These spark plugs share the same mounting (thread, seat) and heat range.
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.