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- Oil Separation & Breather System
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This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition.
The factory hoses offered through BMW are plastic and will yield the same results of becoming brittle and damaged over time. Our solution is a premium replacement that will outlast everyone of the OEM replacements. Our Silicone Crankcase Vent Hose can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.
CSL Vent Hose (11157833649) - Silicone Crankcase Vent hose is a direct replacement
Key benefits:
Lifetime replacement of the brittle OEM plastic crankcase breather hose that is susceptible to cracking overtime from constant heat cycling
Design:
Retains OEM hose end fittings to ensure proper seal
“Black” 3 ply reinforced silicone w/ “White” Turner logo
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
Our engineers at Turner sought out to solve the degrading issues that happens with the factory crankcase vent hose and found the best solution is a silicone replacement. Our Turner Silicone Crankcase Vent Hose can be used to replace the factory brittle hose to prevent vacuum leaks and lackluster performance. Simply take your factory crankcase vent hose and remove the ends; the factory ends can be installed on the new Silicone Vent Hose with the supplied clamps for a tight seal.
Turner Silicone Crankcase Vent Hose replaces the following part #'s:
CSL Vent Hose (11157833649) - Silicone Crankcase Vent hose is a direct replacement
Non-CSL Vent Hose(11157831311) - Silicone hose will make a "U" bend with direct fitment and can also be trimmed for your own preferable fit.
- Key benefits:
Lifetime replacement of the brittle OEM plastic crankcase breather hose that is susceptible to cracking overtime from constant heat cycling
- Design:
Turner logo forward facing when hood is open
Retains OEM hose end fittings to ensure proper seal and reduce cost
“Black” 3 ply reinforced silicone w/ “White” Turner logo
includes 2 German style 430 stainless worm-drive clamps for installation
- Special care instructions:
Do not overtighten hose clamps, hand tight is recommended.
Carefully cut the OEM plastic casing from both plastic fittings for reuse
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box.
The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition. The factory hoses offered through BMW are plastic and will yield the same results of becoming brittle and damaged over time.
We have created a full motorsport style solution with our CSL Crankcase made from machined 6061 billet aluminum with AN style fittings and nylon fiber braided lines. This is a fully serviceable replacement that will outlast every one of the OEM replacements. Our AN crankcase line can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.
OEM CSL Vent Hose (11157833649) - Direct Replacement
Key benefits:
Lifetime replacement of the brittle OEM plastic crankcase breather hose
Fully Serviceable
Motorsport Aesthetic to compliment your CSL Intake Plenum
Design:
Fittings are made from billet 6061-T6 aluminum and finished in Type II black anodizing
Pre-anodized machined Turner branding
Nylon fiber braided lines
Fittings are a direct replacement for the plastic OEM fittings
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box.
The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition. The factory hoses offered by BMW are plastic and will yield the same results of becoming brittle and damaged over time.
We have created a full motorsport-style solution with our CSL Crankcase made from machined 6061 billet aluminum with AN-style fittings and nylon fiber braided lines. This is a fully serviceable replacement that will outlast every one of the OEM replacements. Our AN crankcase line can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.
OEM CSL Vent Hose (11157833649) - Direct Replacement for cars with secondary shut-off valve. (11157834056)
Key benefits:
Lifetime replacement of the brittle OEM plastic crankcase breather hose
Fully Serviceable
Motorsport Aesthetic to compliment your CSL Intake Plenum
Design:
Fittings are made from billet 6061-T6 aluminum and finished in Type II black anodizing
Pre-anodized machined Turner branding
Nylon fiber braided lines
Fittings are a direct replacement for the plastic OEM fittings
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem.
The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
Vents gases from the crankcase back into the intake.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
Genuine BMW Vent Hose
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4
Fits BMW Engines including:
S54
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-15-2026
This product was last offered at the strikethrough price on
06-14-2026
This product was last offered at the strikethrough price on
06-14-2026
Modern emission regulations require a closed PCV/Breather system for cleaner operation. However, inefficient oil particle capture can lead to excessive oil vapor ingestion, causing carbon buildup, reduced performance, and fuel economy. ECS Tuning's updated ECS Baffled Oil Catch Can, now with an easy-to-empty 1/4" drain fitting, is engineered to collect toxic blow-by gases, minimize carbon deposits, and reduce oil contamination within engine oil. Recirculating oil vapor ensures emissions compliance without venting to the atmosphere.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This hose runs from the oil separator to the intake manifold and is designed to allow the recirculation of built-up oil vapors.
Due to its proximity to engine heat, this hose tends to get brittle and break as it ages. This can lead to oil leaks, vacuum leaks, misfires, and more.
If your crankcase ventilation hose is brittle or leaking, replace it with this unit from URO Parts.
This product was last offered at the strikethrough price on
06-29-2026
This product was last offered at the strikethrough price on
06-29-2026
Crankcase Vent Hose ABV0329 is an essential component designed for BMW engines, ensuring optimal performance of the crankcase ventilation system. This high-quality vent hose plays a critical role in regulating and redirecting excess gases from the crankcase back into the engine's intake, reducing harmful emissions and preventing pressure buildup. Crankcase Vent Hose ABV0329 helps maintain engine efficiency and protects against potential damage caused by over-pressurization or oil leaks.
Made from durable, heat-resistant materials, this hose is built to withstand the high temperatures and pressures common in BMW engines. It is a direct-fit replacement, making installation simple and efficient for both professionals and DIY mechanics. Available from Turner Motorsport, Crankcase Vent Hose ABV0329 is the perfect solution for restoring and maintaining your BMW’s crankcase ventilation system.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
The hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.
This kit includes the needed hoses, oil separator, and hardware.
Fits the following BMWs:
2001-09/2004 E46 BMW M3 - Manual Transmission
The hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.
This kit includes the needed hoses, oil separator, and hardware.
Fits the following BMWs:
09/2004-2006 E46 BMW M3 - Manual Transmission