Ford Focus 2005-2015 2.0 Rear Crankshaft Oil Seal Genuine 1S7G6K318CB

Ford Focus 2005-2015 2.0 Rear Crankshaft Oil Seal Genuine 1S7G6K318CB is an important part of the engine lubrication system, designed to seal the rear of the crankshaft at the junction between the engine and transmission. The seal helps prevent engine oil from leaking out while ensuring the crankshaft rotates smoothly at high speed, helping maintain oil pressure and protect internal engine components.

On the Ford Focus 2005-2015 2.0 engine, the rear crankshaft oil seal works in sync with the crankshaft, flywheel or flexplate, transmission, crankshaft bearings and lubrication system to keep engine oil sealed inside the crankcase. When the seal is in good condition, the engine does not leak oil at the transmission interface, helping the vehicle run steadily and reducing the risk of insufficient lubrication.

The 1S7G6K318CB product is a genuine Ford spare part manufactured to high quality standards, using oil-resistant and heat-resistant rubber combined with a highly elastic seal lip spring. The sealing surface is precisely machined for a close fit on the crankshaft, effectively preventing oil leaks and maintaining sealing performance under high temperature, pressure and rotational speed conditions. The product is designed to the correct specifications and fits Ford Focus 2005-2015 2.0 engines accurately without modification.

Over time, the rear crankshaft oil seal can harden, wear at the sealing lip or age due to high temperatures and continuous operation. When this happens, engine oil may leak at the junction between the engine and transmission, leaving oil spots under the vehicle or around the transmission housing. If not replaced promptly, engine oil level can drop, affecting lubrication, increasing the risk of wear to internal engine parts and potentially causing oil contamination on the clutch assembly in manual transmission vehicles.

The 1S7G6K318CB product is manufactured to Ford genuine standards, ensuring high sealing performance, excellent durability and precise fitment on Ford Focus 2005-2015 2.0 engines.

Product information

Product name: Rear Crankshaft Oil Seal / Rear Crankshaft Oil Seal
Part number: 1S7G6K318CB/ 1S7Z6K301C/ 1S7Z6K301B
Brand: Genuine
Applicable vehicle: Ford Focus 2005-2015 2.0 engine
Installation position: Rear end of crankshaft (transmission side)
System: Engine - Lubrication system
Condition: New

Function and role

• Seals the rear end of the crankshaft.
• Prevents engine oil from leaking out.
• Maintains lubrication pressure and oil volume.
• Protects the flywheel and transmission from leaking oil.
• Helps the engine operate smoothly.

Key advantages

• Genuine Ford spare part.
• Highly oil-resistant and heat-resistant rubber.
• Elastic seal lip for effective sealing.
• Good resistance to wear and aging.
• Installs to original standards.

Signs to inspect or replace

• Oil leakage between the engine and transmission.
• Oil dripping under the vehicle.
• Unusually low engine oil level.
• The seal has hardened or torn during inspection.
• Oil around the flywheel or transmission housing.

👉 The rear crankshaft oil seal is an important part that helps maintain the sealing of the lubrication system and prevent engine oil leaks. Using the genuine Ford Focus 2005-2015 2.0 rear crankshaft oil seal, part 1S7G6K318CB, helps ensure optimal sealing performance, protect the engine and extend the service life of related components.

Replacement recommendations

• Replace with the correct 1S7G6K318CB part for the 2.0 engine.
• Inspect the flywheel, pilot bearing (manual transmission) or flexplate (automatic transmission) at the same time.
• Check the crankshaft surface where it contacts the seal.
• Replace gaskets and related sealing parts if needed.
• Installation should be done by a garage or repair center with specialized experience, as the transmission must be removed to replace the seal, ensuring engine sealing and service life.