Turbo Lines & Hoses for BMW 4 Series F32 (2014+)

Clear BMW chassis

Please ensure your correct model is selected

OE turbocharger hoses and lines are made to perform year-round in any climate. For that reason, they tend to be constructed of flexible materials that will wear out in time. Here you will find everything you need to service all of the turbochargers connecting pipes and oil lines.
Sort By:

BMS High Flow Silicone Turbo Inlet - BMW N55 F2X F3X F87
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:43109033
Part#: BMS-HFSTI-FN55
In Stock
$ 199.00 USD
Free Shipping on orders $49 and up
Burger's replacement heavy-duty silicone turbo inlet replaces the narrow and crack-prone factory plastic unit with a higher flowing silicone inlet with billet aluminum fittings. Unlike other inlets, this inlet retains a larger flow straight from intake to turbo for improved boost response and increased turbo efficiency. While beneficial with the factory turbo, this inlet is a must-have with any larger than factory turbo and the perfect complement to the BMS N55 intake systems.
Show More Show Less
Line - Turbocharger Coolant Return Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:23947131
Part#: 11538854735
In Stock
$ 115.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 106.99 USD
Free Shipping on orders $49 and up
$ 106.99 USD
Free Shipping on orders $49 and up
URO Turbocharger Coolant Return Line - 11538854735
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:28537512
Part#: 11538854735
In Stock
$ 66.99 USD
Free Shipping on orders $49 and up

This hose assembly directs coolant away from the turbocharger, allowing cooler coolant from the radiator to flow through. Replace any leaking coolant lines promptly to prevent engine and turbocharger damage.

Key Features:

Ensured fitment for your vehicle Precision-formed to match the length and shape of OE turbocharger coolant lines, ensuring proper appearance and function Equipped with the correct end fittings for easy installation and leak-free performance Constructed using high-quality materials to withstand coolant exposure and turbo heat URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.

Show More Show Less

Dinan B58 Turbo Inlet Pipe - Carbon Fiber - BMW F22/23 F30/32/33/36 B...
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Dinan - Corporate Logo
T#:8076778
Part#: D760-0061
In Stock
$ 204.99 USD
Free Shipping
$ 204.99 USD
Free Shipping
Turbo inlet pipes serve two very distinct, and differing, purposes. On one hand, the optimization of a turbo inlet pipe will encourage better turbo efficiency and responsiveness by allowing the turbo to ingest more air by way of an unobstructed and larger volume flow path. On the other, you have a more visceral benefit that some may argue is equally important than that of efficiency/flow optimization --- increased sound. No matter which of the distinct purposes is favored, Dinan will deliver on both. Regardless of application, a Dinan turbo inlet replaces the weak, and failure-prone, plastic factory inlet with a more robust carbon fiber one. CNC machined fittings are utilized to ensure proper fitment and guarantee installation as a direct replacement to the OEM inlet. Beyond material and fitment however are the improvements to the characteristics of the primary element in the system, the pipe itself. The stock turbo inlet has incorporated additional features (multiple in some cases) that introduce flow restrictions and turbulence while also reducing turbo noises. All of which are unwanted but easily rectified by removing the various resonators and enlarging (and optimizing) the path for a more uniform flow. The result is an inlet that delivers not only more air and allows the turbo to be more efficient (work less) but also provides the oft-desired amplification to the turbo induction soundtrack. Features: Increased turbo efficiency and reliability courtesy of maximum unimpeded and uniform airflow. Eliminates the factory sound resonator for increased turbo vocalization. More Flow: Up to 24% greater than stock. 24% increase in overall volume over OEM inlet. Average of 10.8% larger internal diameter throughout (maximum cross-sectional area allowed). Carbon fiber construction for increased durability and visual appeal. Direct replacement of OEM turbo inlet. Quick and easy bolt-on installation. Dinan Factory Matching (4yr/50k) Warranty Emissions Note: This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.
Show More Show Less

Rein Turbo Oil Pipe Line - Outlet - BMW B48 B46 Gen1
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:27638777
Part#: 11427617535
In Stock at Vendor
$ 64.99 USD
Free Shipping on orders $49 and up
$ 64.99 USD
Free Shipping on orders $49 and up
Prevent oil leaks and ensure oil is properly drained from the turbo with a brand new oil drain pipe from Rein
Rein Turbocharger Oil Return Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:17771585
Part#: 11428626653
In Stock at Vendor
$ 53.99 USD
Free Shipping on orders $49 and up
Rein OE quality return pipe is manufactured with premium rubber and is designed to be a direct-fit replacement.

CTS Turbo Turbo Inlet Pipe - BMW F2X/F3X 230i/330i/430i B46/B48 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTS - Corporate Logo
T#:50899212
Part#: HW-446
Ships in 7 Business Days
New Item
$ 129.99 USD
Free Shipping
$ 129.99 USD
Free Shipping
Unlock maximum airflow and performance from your BMW’s B46/B48 with the CTS Turbo Cast Turbo Inlet Pipe. Designed as a direct replacement for the restrictive factory inlet, this upgrade dramatically improves airflow to the turbocharger, allowing your engine to breathe easier and perform at its full potential.
Show More Show Less
Genuine BMW Turbo Water Return Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:36065
Part#: 11537583903
In Stock
6% off MSRP $ 188.98

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 177.46 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 188.98

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 177.46 USD
Free Shipping on orders $49 and up


Genuine BMW Pipe, Return, Cooling For Turbocharger -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F32,F33,F34,F36

Fits BMW Engines including:
N55

Show More Show Less

N20 Turbocharger Oil Return Line - 11428626653
Also use: (Qty.) (1) 11 42 7 577 017 gasket.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:36981067
Part#: 11428626653
In Stock
Sale - Save 21% $ 58.99

This product was last offered at the strikethrough price on
05-03-2026

$ 46.50 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 58.99

This product was last offered at the strikethrough price on
05-03-2026

$ 46.50 USD
Free Shipping on orders $49 and up

Positioned beneath the turbocharger on N20-equipped BMWs, this vital hose channels oil from the turbocharger back into the oil pan. Over time, wear and tear can lead to hose failure, resulting in significant oil leaks that may cause low oil levels and increase the risk of severe engine damage.

If your turbocharger drain hose is leaking or damaged, restore your engine's reliability with this high-quality replacement from Bremmen Parts. Engineered for durability and precision, it ensures a secure fit and long-lasting performance for peace of mind on the road.

Show More Show Less

Forge B58 Charge Pipe Set - All B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Forge - Corporate Logo
T#:586966
Part#: FMBP3
Ships in 3 Business Days
$ 626.99 USD
Free Shipping on orders $49 and up
BMWs, OEM charge pipe can become brittle and will generally fail under increased boost pressure. To combat this, Forge has developed a replacement with an increased diameter which helps to reduce turbulence and maximize airflow into the engine.
Show More Show Less
Evolution Raceworks B48 Charegepipe - Black Anodized - BMW F22/23 F3X...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Evolution Racewerks - Corporate Logo
T#:587528
Part#: BM-ICP019-T3
Ships on Jun 23, 2026
$ 359.99 USD
Free Shipping
$ 359.99 USD
Free Shipping
The factory charge pipes are made of plastic, which is fine for stock boost levels but does not hold up well under higher boost levels. The solution is to replace that plastic piece with a hard aluminum one from Evolution Racewerks. 6061 high-grade aluminum not only stands up to whatever you can throw at it, but it looks great at the same time. Don't risk detonating that 400.00 plastic pipe from BMW. Swap yours out and avoid the headache of needing to call a tow-truck or drive home in limp. Features: Increase throttle response and decreases turbo lag. Lightweight High Grade 6061 Aluminum Piping. Replaces the factory soft plastic charge pipe that is prone to breaking under high boost. Retains factory-style o-ring c-clip lock flange. Precision CNC machined MAP sensor and IAT flanges ensure a leak-free connection. Charge Pipe features beaded ends and T-bolt clamps to prevent intercooler piping from coming off from boost. Silicone Hump Hose included. Type III Hard Black Anodizing (for stealth and OEM look). Hard anodizing helps improve the durability of intercooler piping. Resists bent or dented piping. Compatible with the factory electronic diverter valve. Includes all hardware for a complete installation. Limited Lifetime Warranty.
Show More Show Less
Genuine BMW Turbocharger Oil Line Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:27372131
Part#: 11427643175KT
Ships in 1 day
$ 301.99 USD
Free Shipping on orders $49 and up

Upgrade your turbocharger oil lines with durable, reinforced rubber hoses to avoid leaks that can lead to costly turbocharger damage due to insufficient lubrication. Ensure peak performance and longevity by replacing old lines with genuine BMW parts.

This kit includes:

Return line (Part number: 11427643176) Supply line (Part number: 11427643175) O-rings (4 pieces) - Part numbers: 11427590576, 11427590577 ISA Screws (4 pieces) - Part number: 07129905867 BMW TwinPower Turbo 0w-20 Engine Oil (1 liter) - Part number: 83212461988

Show More Show Less


Genuine BMW Vacuum Control Hose
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37044
Part#: 11657607727
Ships in 1 day
7% off MSRP $ 44.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 44.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Hose -
This item fits the following BMW Chassis:
E89 Z4,F10,F22,F25 X3,F30,F31,F32,F33,F34

Fits BMW Engines including:
N20

Show More Show Less
BMW Oil Return Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:528936
Part#: 11427643176
Ships in 1 day
6% off MSRP $ 138.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 129.99 USD
Free Shipping
6% off MSRP
$ 138.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 129.99 USD
Free Shipping
Oil Feed Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:532586
Part#: 11427643175
Ships in 1 day
7% off MSRP $ 133.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Free Shipping
7% off MSRP
$ 133.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Free Shipping
BMW part number 11427643175 is a genuine OEM oil supply line, also referred to as the turbocharger oil feed line. This component channels pressurized oil from the engine to the turbocharger, ensuring proper lubrication and cooling of its moving parts, which is vital for maintaining engine performance and longevity. **Compatible BMW Models:** - BMW 340i (F30): 2016–2019 - BMW 340i xDrive (F30): 2016–2019 - BMW 440i (F32): 2017–2019 - BMW 440i xDrive (F32): 2017–2019 - BMW X3 M40i (F25): 2017–2019 - BMW X4 M40i (F26): 2017–2019
Show More Show Less

Genuine BMW Turbocharger Oil Line (Return) - E84 F32 F31 F10 F22 F33 ...
Also use: (Qty.) (1) 11 42 7 577 017 gasket.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:526201
Part#: 11428626653
Ships in 1 day
7% off MSRP $ 131.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 122.99 USD
Free Shipping
7% off MSRP
$ 131.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 122.99 USD
Free Shipping
This line allows the oil to drain from the turbo back into the engine.

Genuine BMW Turbo Water Feed Line
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:36063
Part#: 11537583900
Ships in 1 day
6% off MSRP $ 136.30

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 128.53 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 136.30

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 128.53 USD
Free Shipping on orders $49 and up


Genuine BMW Pipe, Supply, Cooling For Turbocharger -
This item fits the following BMW Chassis:
E82,E90,E92,E93,F30,F32,F34

Fits BMW Engines including:
N55

Show More Show Less
OEM Rein Turbocharger Oil Supply Line - BMW B46/B48 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:32748261
Part#: 11428487371
Back Ordered
$ 57.99 USD
Free Shipping on orders $49 and up
This metal supply line supplies oil to the turbocharger, keeping it lubricated and regulating temperatures. If yours has developed a leak, replace it as soon as possible to prevent oil loss and damage to the turbocharger.
Show More Show Less

Genuine BMW Gasket Asbestos Free - 11427577017
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:35393
Part#: 11427577017
In Stock
21% off MSRP $ 13.63

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 10.76 USD
Free Shipping on orders $49 and up
21% off MSRP
$ 13.63

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 10.76 USD
Free Shipping on orders $49 and up


Genuine BMW Gasket Asbestos Free -
This item fits the following BMW Chassis:
E89 Z4,F02,F10,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N20,N26,S55

Show More Show Less
Rein - Turbocharger Coolant Return Line G01 X3 30iX, F22 230i, F32 43...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:34114214
Part#: 11537643226
Ships in 1 Business Day
$ 62.99 USD
Free Shipping on orders $49 and up

This part goes from the turbocharger to the electric water pump. The Rein - Turbocharger Coolant Return Line is a vital component designed to keep your BMW’s turbocharged engine running smoothly by preventing overheating. Specifically engineered to manage the extreme heat and pressure generated by the turbocharger system, this high-quality coolant return line ensures optimal coolant flow, safeguarding your engine from potential damage. Available at Turner Motorsport, this durable and reliable part is perfect for replacing or upgrading your BMW’s cooling system.

  • Ideal for BMW turbocharged engines
  • Ensures proper coolant flow to prevent overheating and engine damage
  • Engineered to withstand high heat and pressure
  • Direct-fit design for a seamless installation process
  • Manufactured with high-quality, heat-resistant materials for enhanced durability
  • Helps improve engine efficiency and overall performance

The Rein - Turbocharger Coolant Return Line from Turner Motorsport offers BMW owners the dependable cooling solution necessary to keep their turbocharged engines performing at their best.

Show More Show Less

Victor Reinz Oil Supply Gasket
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Victor Reinz - Corporate Logo
T#:587721
Part#: 11427577017
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
Found on the turbocharger(s).

Genuine BMW O-Ring 9,5X1,7mm - 11537610049 - i12 i8
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:201861
Part#: 11537610049
In Stock
$ 3.09 USD
Free Shipping on orders $49 and up


Genuine BMW O-Ring - 9,5X1,7mm
This item fits the following BMW Chassis:
i12 i8

Fits BMW Engines including:
N51

13,95x2,62 FPM Green SH60 RD
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:15213949
Part#: 11427615472
In Stock
$ 1.80 USD
Free Shipping on orders $49 and up
Replace the o-ring gaskets when replacing the turbo oil feed lines!
URO Turbo Coolant Return Line - BMW Gen1 B58 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
URO - Corporate Logo
T#:53079363
Part#: 11538666857
Ships in 1 Business Day
New Item
Sale - Save 5% $ 65.99

This product was last offered at the strikethrough price on
05-26-2026

$ 62.69 USD
Sale - Save 5%
$ 65.99

This product was last offered at the strikethrough price on
05-26-2026

$ 62.69 USD
Replacement coolant return hose running from the turbocharger to the auxiliary water pump.


Rein Turbo Oil Return Pipe - F30, F32, F33, F34, F36, F22, F23, G11, ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rein - Corporate Logo
T#:53856281
Part#: 11427643176
Ships in 3 Business Days
New Item
$ 70.99 USD
$ 70.99 USD
The Rein Turbo Oil Feed Pipe is engineered to meet the rigorous tolerances required by high-performance forced induction systems.
VRSF High Flow Upgraded Aluminum Intake Inlet Kit N55 F Chassis 13-17...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
VRSF - Corporate Logo
T#:5844256
Part#: 10301060
Ships in 1 Business Day
$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping
These high flow intake inlets are constructed from high quality, tig welded brushed aluminum. This upgraded inlets is the most cost effective solutions for anyone looking to replace their restrictive factory inlet. Unlike other available upgrades, the VRSF features a CNC’d aluminum flange that offers a larger overall inside diameter which not only increases flow but decreases back pressure. Our high flow inlet kit includes everything necessary to replace the restrictive stock intake inlet with our high flowing 2.5″ aluminum inlet. This kit will work with any and all available intakes as well as any upgraded turbo that is compatible with the OEM intake. This kit works with both RHD and LHD models as well as XI their variants.
Show More Show Less
VTT Turbocharger Inlet Flange - Garrett G40/42/45 V-Band - 86mm ID ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:52270240
Part#: GARROUTT4G4045
Ships in 10 Business Days
New Item
$ 37.99 USD
Free Shipping
$ 37.99 USD
Free Shipping
Upgrade your turbocharger exhaust connection with the VTT-FAB 86mm V-Band Outlet Flange, designed for the Garrett G40-G45 frame sizes.

Genuine BMW Charge Air Induction Tract - 13718601684
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:222876
Part#: 13718601684
Ships in 1 day
9% off MSRP $ 561.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 510.99 USD
Free Shipping
9% off MSRP
$ 561.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 510.99 USD
Free Shipping
Genuine BMW air induction tract. Runs from the turbo to the throttle body

Elring Turbo Oil Drain Gasket - BMW N20 N55 S55 B46/B48 B57
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Elring - Corporate Logo
T#:44733246
Part#: 876.070
Special Order: No Guaranteed ETA
$ 6.99 USD
Free Shipping on orders $49 and up
If your turbo oil drain line connection is leaking, this gasket is likely the culprit. Replace your old gasket with this brand new gasket from Elring to eliminate oil leaks, prevent oil loss, and keep both your engine and driveway clean.
Show More Show Less
9,5x1,8 / FPM RD, Sh 70
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:15015285
Part#: 11537610049
Back Ordered
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
Turbo Oil Pipe O-Ring