black diamond glow plugs and harnesses

suprdzlduty

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First I've heard of them. maybe from Mahle...they like to use the term "black diamond". Oem plugs aren't much more since the harnesses are about 50-60 a side anyway.
 

DEEZUZ

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why stray from OEM? I rarely ever have to change glow plugs. Their a solid design and very simple... Just because the plug burns 'hotter' doesnt mean its going to start better.. the glow plugs themselves are fine, its everything else that comes with starting in the cold(oil, fuel, compression)...
 

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