The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - CO Rare NOS Gas Cap Correct for 70-71 Half Tons

**402Bowtie** · 06-22-2020, 05:29 PM

GM p/n: 3975177

Don't think I have ever seen one of these sold before....

The 1979 parts manual shows correct for 1970 and 1971 half tons (screenshot below).

From the outside it appears similar to the 6263474 cap; however, there is a brass-colored piece under the rubber on this cap that the I'm pretty certain the 6263474 cap doesn't have.

$150 shipped plus fees Now $135

06-22-2020, 05:29 PM	#1
402Bowtie Registered User Join Date: Sep 2003 Location: Wichita, KS Posts: 3,740	Rare NOS Gas Cap Correct for 70-71 Half Tons GM p/n: 3975177 Don't think I have ever seen one of these sold before.... The 1979 parts manual shows correct for 1970 and 1971 half tons (screenshot below). From the outside it appears similar to the 6263474 cap; however, there is a brass-colored piece under the rubber on this cap that the I'm pretty certain the 6263474 cap doesn't have. $150 shipped plus fees Now $135 Attached Images Last edited by 402Bowtie; 06-25-2020 at 11:01 PM.