S00004363+01 Main bearing Sdec Engine parts

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S00004363+01 Main Bearing – SDEC Engine Parts

The S00004363+01 is a genuine OEM main bearing (crankshaft bearing) designed specifically for SDEC (Shanghai Diesel Engine Corporation) engines. As a critical component of the engine's rotating assembly, this bearing provides essential support to the crankshaft, reduces friction, and ensures stable, reliable operation under heavy-duty conditions.

Item	Details
Product Name	Main Bearing / Crankshaft Bearing (Lower)
Part Number	S00004363 (+01)
Brand	SDEC (Shanghai Diesel Engine)
Specification	7H/4H (SDEC H Series Engine)
Engine Type	Diesel
Compatible Engine Models	SDEC SC7H, SC4H series (e.g., SC7H260Q5)
Reference Weight	Approx. 2 KG
Reference Price	Approx. 7.50 CNY/piece (historical data, for reference only)
Warranty	3 months (subject to supplier terms)
Country of Origin	China

The main bearing is installed on the crankshaft main journal within the engine cylinder block. Its core functions include:

Crankshaft Support: Supports the crankshaft during rotation, ensuring stable and balanced operation.
Positioning & Clearance Adjustment: Positions the crankshaft and maintains proper radial clearance for precise fit.
Friction Reduction: Reduces direct wear between the crankshaft and engine block through an oil film lubrication layer.

This part is identified as the Main Bearing (Lower) for SDEC H Series engines , often paired with S00004362 (Main Bearing Upper) for a complete set.

The S00004363 is a standard replacement part required during scheduled engine maintenance, typically at 1000-hour and 3000-hour intervals. The quantity required varies depending on the specific engine model

Component Name	Part Number
Main Bearing (Upper)	S00004362
Thrust Bearing	S00004364
Connecting Rod Bearing (Upper)	S00004365
Connecting Rod Bearing (Lower)	S00004366

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Product Detail

S00004363+01 Main Bearing – SDEC Engine Parts

Item	Details
Product Name	Main Bearing / Crankshaft Bearing (Lower)
Part Number	S00004363 (+01)
Brand	SDEC (Shanghai Diesel Engine)
Specification	7H/4H (SDEC H Series Engine)
Engine Type	Diesel
Compatible Engine Models	SDEC SC7H, SC4H series (e.g., SC7H260Q5)
Reference Weight	Approx. 2 KG
Reference Price	Approx. 7.50 CNY/piece (historical data, for reference only)
Warranty	3 months (subject to supplier terms)
Country of Origin	China

The main bearing is installed on the crankshaft main journal within the engine cylinder block. Its core functions include:

Crankshaft Support: Supports the crankshaft during rotation, ensuring stable and balanced operation.
Positioning & Clearance Adjustment: Positions the crankshaft and maintains proper radial clearance for precise fit.
Friction Reduction: Reduces direct wear between the crankshaft and engine block through an oil film lubrication layer.

This part is identified as the Main Bearing (Lower) for SDEC H Series engines , often paired with S00004362 (Main Bearing Upper) for a complete set.