Description

Front Oil Seal (sometimes called a crankshaft front seal or hub oil seal) is a sealing component placed at the front of a rotating shaft or hub. Its purpose is:

To prevent engine oil, gear oil, or hub grease from leaking out
To keep dirt, dust, water, and contaminants from entering the mechanical area
To maintain lubrication and protect bearings, shafts, or gears

Types & Where They Are Used

Crankshaft front seal: sits at the front end of the crankshaft → keeps engine oil inside the timing cover.
Front hub (wheel) oil seal: used in the wheel hub or axle area → keeps wheel bearings greased and contaminants out.
Axle / drive shaft front seal: used at joints or front drive shafts in four-wheel-drive vehicles.

Common Mitsubishi Front Oil Seal Examples

Here are a few known Mitsubishi part numbers and dimensions:

Part Number / Name	Type	Notes / Dimensions
MB025295	Front wheel hub oil seal	Used for Mitsubishi front wheel hub applications.
MB109453	Front wheel hub oil seal	Genuine OEM Mitsubishi part for front wheel hub.
MH034136	Front hub oil seal	For Mitsubishi / Fuso trucks; size 130×150×12 mm for front hub.
MH034134 / AH6829E0	Front wheel hub oil seal	Size 60×72×12 mm, for Mitsubishi Fuso hub.
MD372249	Front crankshaft oil seal	Used in Mitsubishi Eclipse / Galant / Montero; front main seal.
34×65×12.1 (MB393883)	Front crankshaft oil seal	A known dimension for Mitsubishi front crankshaft

What to Check & Specify

To get the correct front oil seal, these are the key details:

Seal location: front crankshaft vs. front hub
Inner diameter (shaft size)
Outer diameter (housing bore)
Width / thickness of the seal
Part number / OEM code (if known)
Vehicle model / engine / year

If you tell me your Mitsubishi model (truck, car, etc.), year, and engine type, I can pick the exact front oil seal part number for you—and even help you find suppliers. Want me to lookup for your specific vehicle?

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