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Cross referenceAutolite › ap646

Autolite ap646
cross reference

AUTOLITE AP646 Autolite AP646 Platinum Spark Plug — verified interchange numbers, vehicle fitment and specifications. Free lookup, no login.

1Interchange numbers
25Vehicle applications
FreeNo login

Verified interchange

verified1 numbers

Numbers in blue open their own cross-reference page.

BrandPart numberRelation
NGK3142equivalentCompare →

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Vehicle fitment

25 applications
MakeModelYearsEngine
AsunaSE1993
AsunaGT1993
PontiacOptima1988–1989
ChryslerDynasty1990–1993
PontiacSunbird1987–1988
OldsmobileFirenza1987–1988
CadillacSeville1980–1981
CadillacFleetwood1975–1984
CadillacDeVille1975–1981
CadillacCommercial Chassis1975–1984
CadillacCalais1975–1976
BuickSkyhawk1987–1988
PlymouthVoyager1991–2000
PlymouthGrand Voyager1990–2000
EagleVision1993–1997
DodgeIntrepid1993–1997
DodgeGrand Caravan1990–2000
DodgeDynasty1990–1993
DodgeCaravan1990–2000
ChryslerVoyager2000
ChryslerTown & Country1990–2000
ChryslerNew Yorker1990–1993
ChryslerImperial1990–1993
ChryslerGrand Voyager2000
ChryslerConcorde1993–1996

Details & specifications

Type
Electrical
Length
3.259843 mm
Width
0.937008 mm

FAQ

Is the Autolite ap646 the same as other brands' parts?

Orderflow's verified cross-reference lists 1 equivalent part number for the Autolite ap646, including NGK 3142. Always confirm against the manufacturer spec before ordering.

What vehicles fit the Autolite ap646?

This part has 25 verified vehicle applications on record. See the fitment table on this page for makes, models and years.

Is this cross-reference lookup free?

Yes. Orderflow's part cross-reference is free, with no login required.

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Found a wrong match? Report it. Data is a cross-reference guide — always verify against the manufacturer specification for your application.