API GL-4 Gear Oil, 5L 14NPT EXTERNAL INSERT TM4509 Grade is used in

TM4509 Grade is used in all General steel

and exhaust systems

if total length increase flute length remain same of double of diameter

Supports extended oil change intervals

Engine and Gearbox Lubrication in Military Vehicles

API GL-4 Gear Oil, 5L 14NPT EXTERNAL INSERT TM4509 Grade is used inAPI GL 4 Gear Oil is a high performance gear lubricant specially formulated to meet the demanding requirements of modern manual transmissions and axle systems. Engineered with premium base oils and balanced additive technology, it ensures smooth gear shifts, optimal load carrying capacity, and extended equipment life. This oil provides excellent thermal and oxidation stability, superior wear protection, and anti rust and anti corrosion performance in