Champion RC11PYPB4 OE138/T10 Spark Plug Double Platinum

The Champion RC11PYPB4 is part of the Champion Double Platinum range.Champion Double Platinum carries platinum on both the centre and ground electrodes. This matters on distributorless and waste-spark ignition systems, which fire half the plugs with reverse polarity and wear the ground electrode as quickly as the centre; with platinum on both, the gap remains stable for the full manufacturer service interval. Fit as the direct replacement where this Champion part number is specified as original equipment.Heat (NGK scale) is our conversion of the Champion heat number onto the NGK scale, so plugs from different makers can be compared on one hot-to-cold ladder. Makers' cross-references can be half a heat range apart, and plugs have moved up or down the scale over the years where no direct replacement exists, so treat it as a guide and check the recommendation for your vehicle.