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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
4L (industrial diesel)
5 mounting thread on a 62 mm gasket
Detroit Diesel DD13 12
with a 1-14 UNF-2B mounting thread
Tractor) Suspension Kenworth AG380 / Airglide 380
PAI FAS-5059 Cab Air Spring | Replaces Mack 227QS42M Oil Filter 4L (industrial diesel)The PAI FAS 5059 is a genuine Goodyear 1S4 173 cab air spring engineered for Mack truck cab suspension systems. This precision built air spring isolates vibration transmission from the frame to the cab, improving driver comfort and reducing noise on long hauls. PAI delivers premium OEM equivalent quality at competitive aftermarket pricing. Specifications Manufacturer PAI (Goodyear 1S4 173) Part Number FAS 5059 Part Type Cab Air Spring Outer Diameter
