Most "Motorcraft" parts are actually made by other suppliers. Ford buys a lot of parts from Bosch, so it is very possible that Bosch makes the Motorcraft wires and that the Bosch parts are equivalent to OEM parts. It is also possible that Bosch made the OE parts to Ford specifications and the aftermarket Bosch labeled parts are made to different specifications (could be better or worse). If you want Original Equipment (OE) parts, buy them from a Ford dealer. Even aftermarket Motorcraft parts are not necessarily the same as OE parts.
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Plug wires for a 1998 Contour are $50.13 for a 4 cylinder and $86.69 for a six cylinder. See
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. Also look at
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4 cylinder spark plug wire set = Motorcraft P/N WR-5730 - $31.79 at
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cylinder spark plug wire set = Motorcraft P/N WR-5692 - $54.99 at
This designation is sometimes used to indicate "OEM" equivalent - not OEM parts. It is sometins used to replace budget - good - better - best - premium, etc. It may or may not actually be an OEM item.
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