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Engine Crankcase Ventilation Hose

Name: Engine Crankcase Ventilation Hose 503123 - TOPRAN (49833034)
Brand: TOPRAN
SKU: 49833034
Price: 9.76 EUR
Availability: InStock

Compatible with BMW 3 (E46) , BMW 3 Coupe (E46) , BMW Z3 Roadster (E36) Show more info

Connects the engine crankcase to the ventilation system, ensuring proper gas flow and emission control.

9.76 EUR

inc. VAT 21%

In stock 4

Delivery	1 day (25.03.2026)
PN	503123
Make	TOPRAN

Description
Specification
Alternatives
Compatibility
OE numbers

This engine crankcase ventilation hose is designed to manage the flow of gases within your engine's crankcase. It plays a crucial role in preventing pressure buildup and directing blow-by gases to the intake system for re-combustion, thereby reducing emissions. Crafted from durable materials, this hose is built to withstand the demanding conditions of the engine bay, including exposure to heat and oil. Its precise fit ensures a secure connection, preventing leaks and maintaining the integrity of the ventilation system. Proper functioning of the crankcase ventilation system is essential for engine health and environmental compliance. Replacing a worn or damaged hose with this part will help maintain optimal engine performance and reduce harmful exhaust pollutants.

Directs crankcase gases to the intake system
Helps control engine emissions
Prevents pressure buildup in the crankcase
Made from durable, oil-resistant material
Ensures a secure and leak-free connection
Supports optimal engine performance
Contributes to environmental compliance

Air conditioning zones

For cold climate zones

Additional article/Additional info 2

with protective hose

Installation side

bottom

Material

Plastic

Installation side

from the cylinder block to the oil separator

Additional article/Additional information

with a high-speed coupling

BMW
- 3 (E46)
  - 328 i (142kW/193PS)
  - 323 i (125kW/170PS)
  - 320 i (110kW/150PS)
  - 330 xi (170kW/231PS)
  - 320 i (125kW/170PS)
  - 325 i (141kW/192PS)
  - 325 xi (141kW/192PS)
- 3 Coupe (E46)
  - 323 Ci (125kW/170PS)
  - 328 Ci (142kW/193PS)
  - 320 Ci (110kW/150PS)
  - 320 Ci (125kW/170PS)
  - 325 Ci (141kW/192PS)
  - 330 Ci (170kW/231PS)
- Z3 Roadster (E36)
  - 2.0 i (110kW/150PS)
  - 3.0 i (170kW/231PS)
  - 2.2 i (125kW/170PS)
- 3 Touring (E46)
  - 320 i (110kW/150PS)
  - 328 i (142kW/193PS)
  - 330 xi (170kW/231PS)
  - 330 i (170kW/231PS)
  - 320 i (125kW/170PS)
  - 325 i (141kW/192PS)
  - 325 xi (141kW/192PS)
- 3 Kabriolets (E46)
  - 323 Ci (125kW/170PS)
  - 330 Ci (170kW/231PS)
  - 320 Ci (125kW/170PS)
  - 325 Ci (141kW/192PS)
- Z3 Coupe (E36)
  - 3.0 i (170kW/231PS)
- 5 (E39)
  - 520 i (125kW/170PS)
  - 525 i (141kW/192PS)
  - 530 i (170kW/231PS)
- 5 Touring (E39)
  - 520 i (125kW/170PS)
  - 525 i (141kW/192PS)
  - 530 i (170kW/231PS)
- Z4 Roadster (E85)
  - 3.0 i (170kW/231PS)
  - 2.5 i (141kW/192PS)
  - 2.2 i (125kW/170PS)
- 5 (E60)
  - 520 i (125kW/170PS)
  - 530 i (170kW/231PS)
  - 525 i (141kW/192PS)
- 5 Touring (E61)
  - 525 i (141kW/192PS)
- X3 (E83)
  - 3.0 i xDrive (170kW/231PS)
  - 2.5 i (141kW/192PS)
- 7 (E65, E66, E67)
  - 730 i, Li (170kW/231PS)

BMW

1115 7 532 629

MINI

1115 7 532 629

Engine Crankcase Ventilation Hose

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Engine Crankcase Ventilation Hose

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