Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#475372 10/22/22 10:14 AM
Joined: Oct 2012
Posts: 92
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Oct 2012
Posts: 92
G'Day All,
Looking to clarify if the W89D 589 CHAMPION Industrial Spark Plugs are the same as the W89D Champion, or does the "589" designation mean they are a different plug. Thanks as always for Your time and attention.............Joe.............

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Sanderson #475379 10/22/22 03:28 PM
Joined: Apr 2006
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I'm no expert, but I use the W89D plugs on my trucks and I like them. ;-)

The Champion 589 plug seems to have longer electrodes than the plain old W89D plugs.

Here a 589 plug on ebay: W89D 589 Champion spark plug

Here's a plain W89D plug: W89D Champion plug

Cheers, Dean


Dean 'Rustoholic' Meltz
old and ugly is beautiful!



Sanderson #475380 10/22/22 04:00 PM
Joined: Dec 2019
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Possibly a little clarification here.

I think what Dean is pointing out is that the W89D and the 589 are not the same plug.
The numbers were probably listed together by the seller because they consider them to be interchangeable, and they want people searching for either one to find their listing.


Ole S Olson
Sanderson #475401 10/23/22 12:23 PM
Joined: Oct 2012
Posts: 92
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Oct 2012
Posts: 92
Thanks very much for Your timely and informative responses..................Much appreciated........Joe........


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