NGK XR4 Spark Plug
Specs, cross-brand equivalents, vehicle fitment, and live prices for the NGK XR4.
The NGK XR4 is a 14mm thread, 9.5mm reach, heat range 4, copper electrode spark plug, pre-gapped to 0.035. 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 | W14PR-U | Copper | Buy |
| Denso | W16PR-U | Copper | Buy |
| Bosch | WR10F | Copper | Buy |
| Bosch | WR10FC | Copper | Buy |
| Accel | 0437 | — | Buy |
| Accel | 0437S | — | Buy |
| Accel | 138 | — | Buy |
| Accel | 437 | — | Buy |
| Accel | R44S | — | Buy |
| ACDelco | 46S | — | Buy |
| ACDelco | R44S | — | Buy |
| ACDelco | R45S | — | Buy |
| ACDelco | R46S | — | Buy |
| ACDelco | R47S | — | Buy |
| Autolite | 565 | Copper | Buy |
| Autolite | 77 | Copper | Buy |
| Autolite | 86 | Copper | Buy |
| Autolite | 86BP | Copper | Buy |
| Autolite | 87 | Copper | Buy |
| Bosch | 7519 | — | Buy |
| Bosch | 7916 | — | Buy |
| Bosch | 7919 | — | Buy |
| Bosch | 7920 | — | Buy |
| Bosch | W10F | Copper | Buy |
| Bosch | WR10FC+ | Copper | Buy |
| Bosch | WR10FCY+ | Copper | Buy |
| Bosch | WR8FC | Copper | Buy |
| Bosch | WR8FP | Platinum | Buy |
| Bosch | WR9FP+ | Platinum | Buy |
| FS35C | — | Buy | |
| FS35CPR | — | Buy | |
| FS35P | — | Buy | |
| FS35PR | — | Buy | |
| Brisk | K17Y# | — | Buy |
| Champion | 58 | — | Buy |
| Champion | 58CC | Copper | Buy |
| Champion | 63 | — | Buy |
| Champion | CCH58 | Copper | Buy |
| Champion | OJ11Y | Copper | Buy |
| Champion | RJ14CC | Copper | Buy |
Showing the 40 closest cross-references of 66 total interchangeable part numbers for this plug.
Vehicles the XR4 fits
Buick Century 5.3LLexus GS 5.6LBuick Skylark 5.3LBuick Wildcat 6.6LChevrolet BEL AIR 5.4LChevrolet BEL AIR 5.7LChevrolet Caprice 6.6LChevrolet Impala 5.4LChevrolet Monte Carlo 6.6LChevrolet Nova 5.7LDodge Charger 5.2LDodge Charger 6.3LDodge Coronet 5.2LDodge Coronet 5.3LDodge Coronet 5.7LDodge Coronet 5.8LDodge Coronet 5.9LDodge Coronet 6.3LDodge Coronet 7.2LDodge Dart 6.8LOldsmobile 442 5.7LOldsmobile 442 7.5LPlymouth Barracuda 5.9LPlymouth Satellite 5.2LPlymouth Satellite 7.2LPontiac Firebird 7.5LPontiac GTO 5.7L
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