Orifice diameter: .082"
Male thread: 1/2"-20
Female thread: 1/2"-20
Overall length: 1.18"
OEM# 6-8, 18R-87AS
Compatible with new alcohol enhanced fuels.
MADE IN USA
Quantity: 1
Holley carburetors serviced with this needle and seat assembly:
R-3993-2A, R-4405-1A, R-4405A, R-4487-1A, R-4510A, R-4542A, R-4591-1A, R-4591A, R-6319A, R-8592A,R-2697-1A, R-2697A, R-2880A, R-3199A, R-3200A, R-3250-1A, R-3250A, R-3251A, R-3252A, R-3253A, R-3292A, R-3293A, R-3294A, R-3295A, R-3438A, R-3624A, R-3650A, R-3704A, R-3705A, R-3706A, R-3707-1A, R-3707A, R-3708-1A, R-3708A, R-3709A, R-3965-1A, R-3965-2A, R-3965A, R-3967-1A, R-3967-2A, R-3967A, R-3968-1A, R-3968-2A, R-3968A, R-3978A, R-4102-1A, R-4102-2A, R-4102A (May fit other appliations also.)