TwinTurbo.NET: Nissan 300ZX forum - Re: The original supplier was Unisa Jecs fwiw
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Subject Re: The original supplier was Unisa Jecs fwiw
     
Posted by ZXoltan on February 19, 2026 at 10:26 AM
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In Reply To The original supplier was Unisa Jecs fwiw (n/m) posted by Bernie (NoVA) on February 16, 2026 at 08:32 PM
     
Message "Unisia JECS" has a very convoluted history--

At one time JECS was partially owne/partnered with Bosch, but I believe it was purchased by Hitachi in the early 2000's. That's why you will find a lot of OEM Z32 parts that are in Bosch boxes, and sometimes under the Hitachi label (coil packs are a good example).

There have also been quite a few counterfeit MAF's produced over the years, so need to be careful of those! Most of them on ebay are chinese fakes. Just because a MAF has a correct-looking Unisia-JECS orange/silver label does not mean it is a genuine OEM part.

To add to the confusion, the design of the MAF body has had very slight variations over the years. Originally they all had the Nissan "hamburger" logo on the side, but some of the later replacements did not have that, even though they were fully original.

     
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