Abdalla Posted December 25, 2020 Report Share Posted December 25, 2020 Hello everyone.. Last week i did a 40k service at the dealership, and i changed the sparkplugs, they’re supposed to be motorcraft sp537, but instead they fitted sp578 into it, is that okay or would it make any problems to my ecoboost 2.0 engine? Quote Link to comment Share on other sites More sharing options...
1004ron Posted December 25, 2020 Report Share Posted December 25, 2020 8 hours ago, Abdalla said: Hello everyone.. Last week i did a 40k service at the dealership, and i changed the sparkplugs, they’re supposed to be motorcraft sp537, but instead they fitted sp578 into it, is that okay or would it make any problems to my ecoboost 2.0 engine? The Motorcraft SP-542 plug was superseded by SP-578, and its quite possible that the SP-537 was also superseded, but best contact your dealership or wait to see if someone else here can confirm. Welcome to the forum - pleas consider adding location and model/year to your profile signature - https://www.fordedgeforum.com/settings/signature/ Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted December 25, 2020 Report Share Posted December 25, 2020 Ford lists CYFS-12Y-PCT as the replacement plug, which comes to SP550 on rockauto https://www.rockauto.com/en/moreinfo.php?pk=8399588&jsn=10933 i think sp537 was CYFS-12Y-2 Quote Link to comment Share on other sites More sharing options...
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