NGK UR4IX Spark Plug
Specs, cross-brand equivalents, vehicle fitment, and live prices for the NGK UR4IX.
NGK
UR4IX
BrandNGK
MetalIridium
Thread14mm
Reach11.2mm
Heat4
Gap0.043
The NGK UR4IX is a 14mm thread, 11.2mm reach, tapered seat, heat range 4, iridium electrode spark plug, pre-gapped to 0.043. 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 | ITF16 | Iridium | Buy |
| Motorcraft | ASF42P | — | Buy |
| Motorcraft | ASF44P | — | Buy |
| ACDelco | 41-905 | — | Buy |
| Autolite | AR25 | — | Buy |
| Autolite | XP25 | Iridium | Buy |
| Bosch | 4449 | — | Buy |
| Bosch | 6224 | — | Buy |
| Bosch | HGR9BQI(Pt-IR FUSION) | Copper | Buy |
| Bosch | HR8BP | Platinum | Buy |
| Bosch | HR9BP | Platinum | Buy |
| Bosch | HR9BPX | Platinum | Buy |
| Champion | 7018(Double-Pt) | Copper | Buy |
| Denso | 267700-0660 | — | Buy |
| Denso | 5330 | — | Buy |
| Denso | ITF16TT | Iridium | Buy |
| Motorcraft | 105 | — | Buy |
| Motorcraft | AF3 | — | Buy |
| NGK | 7401 | — | Buy |
| Split Fire | SF2E | — | Buy |
| P4RTI | — | Buy | |
| P4RTP | — | Buy |
Vehicles the UR4IX fits
Buick Century 3.8LBuick Century 5.7LBuick Century 7.5LLexus GS 5.7LLexus GS 6.6LLexus GS 7.5LBuick Lesabre 4.4LBuick Lesabre 7.5LBuick Lesabre 3.8LBuick Regal 3.8LBuick Regal 4.4LBuick Regal 5.7LBuick Regal 7.5LBuick Riviera 3.8LBuick Riviera 7.5LBuick Skylark 2.8LBuick Skylark 4.1LBuick Skylark 5.7LBuick Skylark 6.6LBuick Skylark 7.5LBuick Wildcat 7.5LChevrolet Blazer 4.1LChevrolet Blazer 5.7LChevrolet Camaro 3.8LChevrolet Camaro 4.4LChevrolet Camaro 5.7LChevrolet Caprice 3.8LChevrolet Caprice 4.4LChevrolet Caprice 5.7LChevrolet Caprice 6.6LChevrolet Caprice 7.4LChevrolet Corvette 5.7LChevrolet Corvette 7.4LChevrolet EL Camino 3.8LChevrolet EL Camino 4.1LChevrolet EL Camino 4.4LChevrolet EL Camino 5.7LChevrolet EL Camino 6.6LChevrolet Impala 3.8LChevrolet Impala 4.4LChevrolet Impala 5.7LChevrolet Impala 6.6LChevrolet Impala 7.4LChevrolet Malibu 3.8LChevrolet Malibu 4.4LChevrolet Malibu 5.7LChevrolet Malibu 6.6LChevrolet Monte Carlo 3.3LChevrolet Monte Carlo 3.8LChevrolet Monte Carlo 4.4LChevrolet Monte Carlo 5.7LChevrolet Monte Carlo 6.6LChevrolet Nova 4.1LChevrolet Nova 5.7LChrysler Cordoba 3.7LChrysler Lebaron 3.7LChrysler NEW Yorker 3.7LChrysler Newport 3.7LDodge Charger 3.7LFord Bronco 5.8L
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