NGK YR55 Spark Plug
Specs, cross-brand equivalents, vehicle fitment, and live prices for the NGK YR55.
The NGK YR55 is a 14mm thread, 11.2mm reach, heat range 5, copper electrode spark plug, pre-gapped to 0.059. These specifications are decoded from the NGK part number and determine which plugs it safely cross-references to — a valid equivalent must match the thread, reach, seat and heat range.
Cross-reference equivalents
| Brand | Part | Metal | Buy |
|---|---|---|---|
| Denso | ITF20 | Iridium | Buy |
| Denso | T20R-U | Copper | Buy |
| Denso | T16R-U15 | Copper | Buy |
| Bosch | HR10ACY | Copper | Buy |
| Champion | RV12C | Copper | Buy |
| Champion | RV12C6 | Copper | Buy |
| Champion | RV8C | Copper | Buy |
| Champion | RV8C6 | Copper | Buy |
| Motorcraft | ASF3C-6 | — | Buy |
| Motorcraft | ASF4C-6 | — | Buy |
| Motorcraft | ASF8-6 | — | Buy |
| ACDelco | 10 | — | Buy |
| ACDelco | 41-830 | — | Buy |
| ACDelco | MR43T | — | Buy |
| ACDelco | R42TX | — | Buy |
| ACDelco | R43T6 | — | Buy |
| ACDelco | R43TX | — | Buy |
| ACDelco | R44T | — | Buy |
| ACDelco | R44TX | — | Buy |
| ACDelco | R45TX | — | Buy |
| ACDelco | R46TX | — | Buy |
| Autolite | 3623 | Copper | Buy |
| Autolite | 3625 | Copper | Buy |
| Autolite | 3627 | Copper | Buy |
| Autolite | 683 | Copper | Buy |
| Autolite | 684 | Copper | Buy |
| Autolite | 685 | Copper | Buy |
| Autolite | 687 | Copper | Buy |
| Bosch | 7573 | — | Buy |
| Bosch | 7584 | — | Buy |
| Bosch | 7973 | — | Buy |
| Bosch | HR10AY | Copper | Buy |
| Bosch | HR8AC | Copper | Buy |
| Bosch | HR8ACY | Copper | Buy |
| Bosch | HR8APY | Platinum | Buy |
| Bosch | HR9ACY | Copper | Buy |
| Bosch | HR9AY | Copper | Buy |
| Bosch | WA125TR4X | Copper | Buy |
| Champion | 108 | — | Buy |
| Champion | 121S | Copper | Buy |
Showing the 40 closest cross-references of 70 total interchangeable part numbers for this plug.
Vehicles the YR55 fits
Chevrolet Caprice 5.7LChevrolet Caprice 6.6LChevrolet Caprice 7.4LChevrolet EL Camino 7.4LChevrolet EL Camino 6.6LChevrolet EL Camino 5.7LChevrolet EL Camino 4.1LChevrolet Impala 5.7LChevrolet Impala 6.6LChevrolet Impala 7.4LChevrolet Malibu 6.6LChevrolet Malibu 7.4LChevrolet Malibu 5.7LChevrolet Monte Carlo 5.7LChevrolet Monte Carlo 6.6LChevrolet Monte Carlo 7.4LChevrolet Nova 4.3LChevrolet Nova 5.7LPontiac Firebird 4.1L
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