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Old Sep 28, 2020 | 09:10 AM
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What is the correct NGK equivlent to replace the AC R45TS ?
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Old Sep 28, 2020 | 09:25 AM
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Originally Posted by 1971bbc
What is the correct NGK equivlent to replace the AC R45TS ?
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NGK# 2771 (UR5). If you want a little hotter plug.....UR4 is one step hotter.

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Last edited by Jebbysan; Sep 28, 2020 at 09:25 AM.
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Old Sep 28, 2020 | 10:51 AM
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So the NGK UR4 would equivlent to R46TS?
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Old Sep 28, 2020 | 12:07 PM
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https://www.ngk.com/SearchResults.as...Delco&kw=R46TS
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