Beck/Arnley Direct Ignition Coil P/N:178-8607
Beck/Arnley 178-8388 direct ignition coil for the 2003-2005 Subaru Impreza H4 2.0L and other vehicles steps battery voltage up to the spark a cylinder needs.
A weak coil can show up as a misfire, a rough idle or a check engine light, though the spark plugs or the wiring connector could also be the source, so find the cause first. This listing is one coil, and the 2003-2005 Subaru Impreza H4 2.0L takes four.
The coil matches OE form, fit and function on the 2003-2005 Subaru Impreza H4 2.0L and the 2005 Saab 9-2X H4 2.0L.
Fit and size
Build and materials
Interchange: 5C1477 · 32011453 · UF528 · 22433AA451 · 22433AA550 · 22433AA551 · C1478
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This part cross-references / interchanges with the following part numbers:
Does the Beck/Arnley 178-8388 direct ignition coil fit the 2005 Saab 9-2X H4 2.0L?
Yes. Beck/Arnley 178-8388 fits the 2005 Saab 9-2X H4 2.0L as well as the 2003-2005 Subaru Impreza H4 2.0L, and each takes four coils.
What are the windings in this Beck/Arnley direct ignition coil made of?
The primary and secondary windings are copper. The coil is also made from materials that withstand high temperatures.
Does Beck/Arnley 178-8388 cross to the 22433AA451 number?
Yes. 22433AA451 is on the interchange list for Beck/Arnley 178-8388, along with 22433AA550, 22433AA551, UF528, 5C1477, 32011453 and C1478.
What can a failing direct ignition coil do to engine running?
Misfiring, a rough idle and a check engine light can mean a coil is weak. A shop can test the coil with the right equipment.
Is this direct ignition coil ready to install out of the box?
Yes. The coil goes straight onto the vehicle out of the box and is application specific.
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