This has the center mount so the air filter centers right over your carb mouth

Included springs are high quality phosphate coated spring wire that allows full advance @ 1400 RPM (same as OE)

• Ready to Install: Includes a chrome steel bracket and an anti-vibration handlebar mounting clamp for a straightforward installation

• Construction: Polished stainless steel

die-cast aluminum

Big Twin 4 Speed Oil Filter Mounting Bracket Length_.75" This has the center mountThis is a replica of OEM# 62538 82 factory oil filter bracket that bolts to the rear of the 4 speed transmission mounting plate. Will work on all 1965 1984 Harley Davidson swingarm frames. You must use a universal or 1977 85 style transmission plate that does not have the transmission adjuster tab at the rear. Made in Ohio, USA.