CTS Turbo B-Cool Billet Oil Filter Housing - BMW 2.0L / 3.0L (CTS-HW-271)

Upgrade your BMW's oil filtration system with the CTS Turbo B-Cool billet oil filter housing. The CTS-HW-271 replaces the factory plastic oil filter housing on BMW 2.0L and 3.0L engines with a precision-machined billet aluminium unit — eliminating the factory housing's known failure points while providing a foundation for oil cooler integration and improved oil system reliability on 1, 2, 3, and 4 Series BMW applications.

Note: Verify exact engine and model year compatibility with CTS Turbo documentation before ordering. BMW oil filter housing fitment can vary between engine variants and model years even within the same displacement family.

Key Features:

• CTS Turbo B-Cool billet aluminium oil filter housing
• Replaces factory plastic oil filter housing
• Compatible with BMW 2.0L and 3.0L engines
• Fits BMW 1, 2, 3, and 4 Series applications
• Precision CNC machined billet aluminium construction
• Oil cooler adapter compatible
• CTS Turbo quality and engineering

Performance Benefits:

• Eliminates Factory Plastic Housing Failures: The factory BMW plastic oil filter housing is a known failure point — the plastic degrades over time from heat cycling and can crack, warp, or develop leaks at the housing body or the integrated thermostat. The billet aluminium CTS housing eliminates these failure modes entirely
• Oil Cooler Integration: The B-Cool housing is designed to accept an oil cooler adapter, allowing an external oil cooler to be added to the oil circuit for improved oil temperature management — particularly valuable on turbocharged and high-performance BMW applications
• Improved Heat Dissipation: Aluminium conducts and dissipates heat more effectively than plastic, helping to manage oil temperatures at the filter housing
• Long-Term Reliability: Billet aluminium construction provides indefinite service life compared to the factory plastic housing that degrades with age and heat exposure
• Clean Appearance: Machined billet aluminium provides a premium engine bay appearance compared to the factory plastic housing

Specifications:

• Brand: CTS Turbo
• Part Number: CTS-HW-271
• Material: Billet aluminium (CNC machined)
• Application: BMW 2.0L and 3.0L engines — 1, 2, 3, 4 Series
• Function: Oil filter housing replacement with oil cooler adapter compatibility

Fitment Information:

• BMW 1 Series — 2.0L and 3.0L engine variants
• BMW 2 Series — 2.0L and 3.0L engine variants
• BMW 3 Series — 2.0L and 3.0L engine variants (E90/E92/F30 and related)
• BMW 4 Series — 2.0L and 3.0L engine variants
• Compatible engines may include: N20, N26, N54, N55, S55 — verify your specific engine code with CTS Turbo documentation
• Note: Verify exact fitment for your specific model year and engine code before ordering — BMW oil filter housing design varies between engine variants
• Note: Oil cooler lines, fittings, and cooler core not included — must be sourced separately if adding an oil cooler
• Installation: Professional installation recommended

What's Included:

• CTS Turbo B-Cool billet oil filter housing (CTS-HW-271)
• Note: Filter, gaskets, and hardware — verify if included with CTS Turbo documentation
• Note: Oil cooler lines and cooler not included

Installation Notes:

• Professional installation recommended
• Drain engine oil before removing factory housing
• Clean all mating surfaces thoroughly before installation
• Replace oil filter and all seals/gaskets during installation
• Torque housing fasteners to CTS Turbo specifications — do not overtighten aluminium housing
• Check for oil leaks after first heat cycle
• If adding an oil cooler, plan line routing before installation and ensure all connections are leak-free before starting engine

BMW Plastic Oil Filter Housing — A Known Failure Point:

The factory oil filter housing on BMW's 2.0L and 3.0L engines is made from plastic — a cost-saving measure that creates a significant long-term reliability concern. The housing is subjected to repeated heat cycling as the engine warms up and cools down, and the plastic degrades over time from this thermal stress and from exposure to hot engine oil. Common failure modes include cracking of the housing body, warping of the sealing surfaces, failure of the integrated oil pressure sensor port, and leaks at the housing-to-block interface. On higher-mileage BMW engines, oil filter housing leaks are one of the most common maintenance items — and on turbocharged applications where oil temperatures are higher, the factory housing degrades more rapidly.

The CTS Turbo B-Cool billet housing eliminates all of these failure modes by replacing the plastic housing with a precision-machined aluminium unit that is immune to the thermal degradation that affects the factory plastic. Aluminium does not crack from heat cycling, does not warp at engine operating temperatures, and provides a stable, reliable sealing surface for the oil filter and associated gaskets. For BMW owners who want to address the factory housing's reliability concerns proactively — or who are already dealing with a leaking factory housing — the CTS-HW-271 is a permanent solution.

B-Cool — Oil Cooler Integration:

The "B-Cool" designation in the CTS-HW-271's name refers to its oil cooler integration capability. The housing is designed to accept an oil cooler adapter that routes engine oil through an external oil cooler before returning it to the engine — reducing oil operating temperatures for improved oil longevity and engine protection. This is particularly valuable on turbocharged BMW applications — the N54, N55, and S55 engines generate significant heat in the oil system from the turbocharger(s), and oil temperature management is an important consideration for long-term engine reliability on these platforms.

Adding an oil cooler via the B-Cool housing requires oil cooler lines, fittings, and a cooler core in addition to the housing itself. The B-Cool housing provides the oil routing ports needed to integrate these components — the specific oil cooler setup (line size, cooler size, mounting location) is determined by the owner's specific requirements and available space in the engine bay.

Why CTS Turbo?

CTS Turbo is a respected manufacturer of performance and support components for turbocharged European vehicles, with particular expertise in the BMW platform. Their billet components are machined to precise tolerances and engineered with genuine knowledge of the BMW engine's requirements and failure modes. The CTS-HW-271 reflects CTS Turbo's approach of addressing factory reliability concerns with quality aftermarket solutions — providing BMW owners with a durable, functional upgrade that solves a real problem rather than simply adding performance.

Perfect For:

• BMW 1, 2, 3, and 4 Series owners with 2.0L or 3.0L engines experiencing oil filter housing leaks from the factory plastic housing
• BMW owners wanting to proactively replace the factory plastic housing before it fails
• Turbocharged BMW builds (N54, N55, S55) wanting oil cooler integration for improved oil temperature management
• BMW owners wanting a permanent, reliable billet aluminium replacement for the factory plastic oil filter housing
• Anyone wanting CTS Turbo's quality billet oil filter housing for their compatible BMW application

Perfect For: BMW 1/2/3/4 Series owners with 2.0L or 3.0L engines seeking CTS Turbo B-Cool billet oil filter housing to eliminate factory plastic housing failures and enable oil cooler integration.

Pro Tip: When replacing the oil filter housing, replace the oil filter, all housing gaskets and O-rings, and the oil drain plug washer at the same time — you're already draining the oil and have everything apart, and fresh seals throughout the oil system eliminates any remaining leak sources in one visit.

Billet Aluminium | B-Cool Oil Cooler Compatible | 2.0L & 3.0L: BMW 1, 2, 3, 4 Series. Verify engine code compatibility. Oil cooler lines and cooler not included. Replace all seals during installation. Professional installation recommended.

Eliminate BMW plastic oil filter housing failures with CTS Turbo CTS-HW-271 B-Cool billet housing — aluminium construction, oil cooler compatible, permanent reliability upgrade for BMW 2.0L and 3.0L engines.