Kevin Blank
Member
Are the cooling line fittings on a T400 tranny ¼-18 NPS pipe threads?
T400 Transmission Cooling Line Fittings
- Thread starter Kevin Blank
- Start date
Looks like you are right. According to Summit it's 1/4-18NPS, but it needs a crush washer to seal since it's a straight thread.
NPS = National Pipe Straight thread, since it's NOT tapered, the washer will be required.
https://www.summitracing.com/parts/icb-an710-06a
https://www.jalopyjournal.com/forum/threads/th350-transmision-cooler-line-1-4-nps-question.1147460/
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NPS = National Pipe Straight thread, since it's NOT tapered, the washer will be required.
https://www.summitracing.com/parts/icb-an710-06a
https://www.jalopyjournal.com/forum/threads/th350-transmision-cooler-line-1-4-nps-question.1147460/
.