Function:
The valve stem seal regulates oil flow to the valve guides while preventing excess oil from entering the combustion chamber.

• Controls oil consumption
• Prevents blue smoke from exhaust
• Protects spark plugs and combustion system
• Ensures efficient engine operation

Material & Specs:

• Material: Heat-resistant rubber (Viton / NBR)
• High durability under extreme temperatures
• Precision engineered for OEM fit

Common Symptoms of Failure:

• Blue smoke during startup or acceleration
• Increased oil consumption
• Fouled spark plugs
• Engine performance issues

Suggest there something better to change other parts together if possible :
When replacing valve stem seals, it is recommended to also inspect or replace:

• Valve cover gasket
• Cylinder head gasket
• Timing belt / chain components
• Spark plugs or injectors (depending on engine)
• Engine oil & filter

Replacing seals as a complete set ensures long-term reliability and balanced engine performance.

Our company, based in Dubai, United Arab Emirates, supplies original quality parts with fast delivery across all Emirates.
 Delivery across UAE.

Upgrade your engine with original Mitsubishi Valve Stem Seal M1052B433 — ensuring efficient oil control and extended engine life.