<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by codgerbill:
The genset is an Onan and according to the 2000 brochure it is a 5kw Emerald Gas generator. It runs great (only 250 hours on it) and I just had it serviced this spring. </div></BLOCKQUOTE>
The exact model number will allow one to view the parts list in Onans web site and verify if you simply need to order a replacement cover.
If your Emerald is an HGJAC then it you should be able order a replacement cover.
If your Emerald came with a cover then you really need to replace it as the cover is part of the cooling system not just for noise reduction. Without the cover the lifespan of the generator will be greatly reduced.