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LarryD 8/11/2011
1991 GMC C5000 Topkick C5H042 8 Cyl 6.0L - Engine
What Fuel (Diesel) Cap do I need for my vehicle?
The cap would need to have female threads. The internal dimension of the tank stem is about 2-1/8 inches. Threads are pretty small. I just need the standard cap that screws onto the tank stem, but can not find enough details on products listed to know if they would fit.
My e-mail is [email protected]
Would appreciate any help you can provide.
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