NGK XR4IX - Alternative spark plugs

There are 4 replacement spark plugs for NGK XR4IX. The cross references are for general reference only, please check specifications for your application.

Specifications for NGK XR4IX

Thread diameter
14.0 mm
Thread reach
9.5 mm
Hex size
20.8 mm

NGK XR4IX replacement spark plugs

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Replacement spark plugs for NGK XR4IX on Amazon

Autolite Platinum AP86 Automotive Replacement Spark Plug (1 Pack)
Autolite Platinum AP86 Automotive Replacement Spark Plug (1 Pack)
USD 7.50
Autolite Platinum AP86 Automotive Replacement Spark Plugs (4 Pack)
Autolite Platinum AP86 Automotive Replacement Spark Plugs (4 Pack)
USD 17.25
Denso (6021) W14PR-U Spark Plugs, Pack of 4
Denso (6021) W14PR-U Spark Plugs, Pack of 4
USD 19.77

Replacement spark plugs for NGK XR4IX on Ebay

6 Pcs Spark Plugs NGK Iridium IX 1950-1962 Chevrolet Bel Air 3.9L 3.8L L6
6 Pcs Spark Plugs NGK Iridium IX 1950-1962 Chevrolet Bel Air 3.9L 3.8L L6
USD 62.18
6 Pcs Spark Plugs NGK Iridium IX 1966-1971 Jeep CJ6 3.7L V6 Kit Set Tune Up
6 Pcs Spark Plugs NGK Iridium IX 1966-1971 Jeep CJ6 3.7L V6 Kit Set Tune Up
USD 62.18
6 Pcs Spark Plugs NGK Iridium IX 1961-1962 Chevrolet Impala 3.8L L6 Kit Set
6 Pcs Spark Plugs NGK Iridium IX 1961-1962 Chevrolet Impala 3.8L L6 Kit Set
USD 62.18
6 pcs NGK Iridium IX Spark Plugs 1966-1971 Jeep CJ6 3.7L V6 Kit Set Tune Up x
6 pcs NGK Iridium IX Spark Plugs 1966-1971 Jeep CJ6 3.7L V6 Kit Set Tune Up x
USD 62.18
6 Pcs Spark Plugs NGK Iridium IX 1966-1967 Jeep Commando 3.7L V6 Kit Set
6 Pcs Spark Plugs NGK Iridium IX 1966-1967 Jeep Commando 3.7L V6 Kit Set
USD 62.18
6 pcs NGK Iridium IX Spark Plugs 1966-1971 Jeep Jeepster 3.7L V6 Kit Set x
6 pcs NGK Iridium IX Spark Plugs 1966-1971 Jeep Jeepster 3.7L V6 Kit Set x
USD 62.18
8 Pcs Spark Plugs NGK Iridium IX 1967-1970 Chevrolet Camaro 5.3L 5.4L 4.9L
8 Pcs Spark Plugs NGK Iridium IX 1967-1970 Chevrolet Camaro 5.3L 5.4L 4.9L
USD 79.26
8 pcs NGK Iridium IX Spark Plugs 1967-1970 Chevrolet Camaro 5.3L 5.4L 4.9L x
8 pcs NGK Iridium IX Spark Plugs 1967-1970 Chevrolet Camaro 5.3L 5.4L 4.9L x
USD 79.26
6 Pcs Spark Plugs NGK Iridium IX 1958-1962 Chevrolet Biscayne 3.8L L6 Kit
6 Pcs Spark Plugs NGK Iridium IX 1958-1962 Chevrolet Biscayne 3.8L L6 Kit
USD 62.18
6 pcs NGK Iridium IX Spark Plugs 1950-1962 Chevrolet Bel Air 3.9L 3.8L L6 x
6 pcs NGK Iridium IX Spark Plugs 1950-1962 Chevrolet Bel Air 3.9L 3.8L L6 x
USD 62.18
6 pcs NGK Iridium IX Spark Plugs 1962-1963 Buick Special 3.2L V6 Kit Set x
6 pcs NGK Iridium IX Spark Plugs 1962-1963 Buick Special 3.2L V6 Kit Set x
USD 62.18
6 pcs NGK Iridium IX Spark Plugs 1966-1967 Jeep Dispatcher 3.7L V6 Kit Set x
6 pcs NGK Iridium IX Spark Plugs 1966-1967 Jeep Dispatcher 3.7L V6 Kit Set x
USD 62.18

Applications for this plug

Make Model Engine Years Engine size HP kW Gap Notes
OLDSMOBILE 442 --- 4 bbl CID455 1970 - 7.5 0.9
OLDSMOBILE 442 --- 4 bbl CID350 1970 - 5.7 0.9
OLDSMOBILE 98 H 2 bbl CID350 1972 - 1973 5.7 0.9
OLDSMOBILE 98 K 4 bbl CID350 1973 - 5.7 0.9
OLDSMOBILE 98 T 4 bbl CID455 1973 - 1974 7.5 0.9
OLDSMOBILE 98 U 4 bbl CID455 1974 - 7.5 0.9
OLDSMOBILE Toronado --- 4 bbl CID455 1968 - 1970 7.5 0.9
OLDSMOBILE Toronado W 4 bbl CID455 1973 - 1974 7.5 0.9
PLYMOUTH Barracuda --- 2 bbl CID361 1964 - 5.9 0.9
PLYMOUTH Satellite --- --- CID318 1965 - 1966 5.2 0.9
PLYMOUTH Satellite F 2 bbl CID318 1967 - 5.2 0.9
PLYMOUTH Satellite --- 2 bbl CID383 1965 - 1966 6.3 0.9
PLYMOUTH Satellite G 2 bbl CID383 1967 - 1969 6.3 0.9
PLYMOUTH Satellite --- --- CID440 1966 - 7.2 0.9
PONTIAC Bonneville --- --- CID421 1963 - 1966 6.9 0.9
PONTIAC Bonneville --- 4 bbl CID455 1970 - 1971 7.5 0.9
PONTIAC Bonneville --- --- CID389 1959 - 1966 6.4 0.9
PONTIAC Bonneville --- 2 bbl CID350 1970 - 5.7 0.9
PONTIAC Bonneville --- 2 or 4 bbl CID400 1970 - 1971 6.6 0.9
PONTIAC Catalina --- 2 bbl CID350 1970 - 1971 5.7 0.9
PONTIAC Catalina --- --- CID389 1959 - 1966 6.4 0.9
PONTIAC Catalina --- 2 bbl, 4 bbl CID400 1970 - 1971 6.6 0.9
PONTIAC Catalina --- --- CID421 1963 - 1966 6.9 0.9
PONTIAC Catalina --- 2 bbl, 4 bbl CID455 1970 - 1971 7.5 0.9
PONTIAC Firebird --- 2 or 4 bbl CID400 1970 - 1971 6.6 0.9
PONTIAC Firebird --- 4 bbl CID455 1971 - 7.5 0.9
PONTIAC Firebird --- 2 bbl, 4 bbl CID350 1968 - 1971 5.7 0.9
PONTIAC Grand Prix --- --- CID389 1962 - 1966 6.4 0.9
PONTIAC Grand Prix --- 2 bbl, 4 bbl CID400 1970 - 1971 6.6 0.9
PONTIAC Grand Prix --- --- CID421 1963 - 1966 6.9 0.9
PONTIAC Grand Prix --- 2 bbl, 4 bbl CID455 1970 - 1971 7.5 0.9
PONTIAC GTO --- 2 bbl CID326 1964 - 1966 5.3 0.9
PONTIAC GTO --- 2 bbl CID350 1970 - 5.7 0.9
PONTIAC GTO --- 4 bbl CID389 1964 - 1966 6.4 0.9
PONTIAC GTO --- 2 bbl, 4 bbl CID400 1967 - 1971 6.6 0.9

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