Grease Nipple (Grease Fitting)
A grease nipple is a small valve on a joint or bearing through which fresh grease is pumped with a grease gun.
What is Grease Nipple (Grease Fitting)?
Older cars and many trucks have many of them. Modern cars mostly use sealed, lifetime-lubricated parts. A ball valve stops dirt getting in. A service schedule often lists every grease point on older vehicles.
How it works
The grease gun pushes grease through the nipple, forcing old grease and dirt out of the joint.
Why it matters for your car
Wipe the nipple clean before greasing. Replace blocked nipples rather than forcing grease.
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