Athena Cut Ring Head Gasket - 84.5mm - BMW M50 M52 (84mm Bore) ...

T#:26171655

Part#: ATH-HG-CR-M50-84

In Stock

$ 324.99 USD

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$ 324.99 USD

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Upgrade your BMW engine's performance with the Athena Cut Ring Head Gasket. This gasket replaces BMW part # 11121726619 and 11121726617 and is specifically designed for M50 & M52 iron block inline 6-cylinder engines found in E34/E36 chassis. Standard OEM & MLS gaskets can only handle a certain amount of cylinder pressure before they start to leak, making the Athena Cut Ring Head Gasket the recommended choice for applications making 16+ psi. A compression leak passing the head gasket can cause a range of issues, including engine overheating, loss of power, misfires, and in severe cases, catastrophic engine failure. Athena's gasket is crafted with premium quality reinforced M0115, an asbestos-free material that's original equipment approved and renowned for its superior quality. The AISI 304 stainless steel Cooper Rings bite into the aluminum head, providing maximum sealing capabilities around the cylinder bore and optimizing engine performance, even on engines with nitrous and/or turbo applications that exceed 2-bar boost. Before installation, it is crucial to have the mating surfaces of the cylinder head and block professionally cleaned and resurfaced to ensure they are completely flat. Please be aware that the gasket should have a size that is 0.5mm to 1mm larger than the piston. For example, if the piston measures 84mm, then the gasket should be the next size up, either 84.5mm or 85mm. Installation instructions: Make sure that the engine block and cylinder head surfaces are clean, flat, and free from any debris, oil, or coolant. Install the Cut Ring gasket on the engine block and ensure that it is properly aligned. Avoid twisting or bending the gasket during installation. Place the cylinder head on top of the gasket and install the head bolts or studs in their correct positions. Follow the manufacturer's recommended torque specifications and tighten the bolts or studs in the proper sequence to ensure even clamping force across the gasket. After the initial tightening, re-torque the head bolts or studs after the engine has been started and then allowed to cool to room temperature. This will ensure that the gasket is properly seated and compressed. It is recommended to not use any additional sealant on the MLS gasket, as it is already coated with a Viton rubber sealant. Using additional sealant can hinder the performance of the gasket.

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R56 Main Stud Kit

T#:30397432

Part#: R56MSK

Ships in 2 Business Days

$ 159.99 USD

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$ 159.99 USD

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Complete Cylinder Head Replacement Kit - BMW M52TU M54

10X Entries Into Our F80 M3 Sweepstakes

T#:15710818

Part#: 11127514540KT

Ships on Nov 17, 2026

Sale - Save 2% $ 2,332.99

This product was last offered at the strikethrough price on
06-10-2026

$ 2,285.41 USD

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Sale - Save 2%

$ 2,332.99

This product was last offered at the strikethrough price on
06-10-2026

$ 2,285.41 USD

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When duty calls and its time to replace or refresh your cylinder head, you'll need quite a few components. Look no further because we've collected all those parts into one kit including notable items like 7 liters of BMW oil, 1 gallon of coolant, all seals and gaskets needed and required hardware all available in one kit at the push of a button!

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MINI R55+ Sneed4Speed N Series Engine Cylinder Head Bolts Kit ...

T#:18965470

Part#: NSHBS

In Stock

$ 74.99 USD

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$ 74.99 USD

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MINI R55+ Sneed4Speed N Series Engine Cylinder Head Bolts Kit

Upgrade your MINI's engine with the MINI R55+ Sneed4Speed N Series Engine Cylinder Head Bolts Kit. Engineered for performance and durability, this kit includes high-quality cylinder head bolts designed specifically for N series engines. Ensure a secure and reliable seal for your cylinder head with this premium bolt kit from Sneed4Speed.

Specifically designed for MINI R55+ models
High-quality bolts ensure secure cylinder head seal
Engineered for performance and durability
Provides peace of mind for engine reliability
Easy installation for hassle-free upgrade

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ARP Head Stud Kit - BMW N55/S55

T#:23416542

Part#: ARP-HSK-S56-CA

In Stock

$ 999.99 USD

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$ 999.99 USD

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BMW S58 3.0L ARP Head Stud Kit - CA625+

T#:22427036

Part#: ARP-HSK-S58-CA

Ships in 3 Business Days

$ 999.99 USD

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$ 999.99 USD

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BMW S58 3.0L ARP Head Stud Kit - CA625+ is the ultimate upgrade for the BMW S58 engine, specifically designed for high-performance models such as the F97 X3M, F98 X4M, G80 M3, G82 M4, G83 M4, and G87 M2. Manufactured by Turner Motorsport, this head stud kit ensures optimal engine reliability and performance.

Enhanced Strength: Featuring Custom Age 625+ material with a tensile strength of 260 ksi, this kit provides superior strength compared to factory bolts.
Prevents Head and Block Separation: Designed to handle increased boost levels and high-stress conditions, preventing potential head and block separation.
Precision Engineering: ARP’s advanced manufacturing process ensures that these head studs outperform standard factory bolts under extreme conditions.
Ideal for High-Performance Builds: Perfect for enthusiasts pushing the limits of their S58 engines, offering unparalleled durability and reliability.
Direct Fit: Specifically tailored for the turbocharged inline 6-cylinder BMW S58 engine, ensuring a seamless installation and optimal performance.

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E36 / E34 / E39 / Z3 - Complete Cylinder Head Basic Replacement Kit ...

10X Entries Into Our F80 M3 Sweepstakes

T#:15744068

Part#: 114278337690-KT

Ships on Oct 2, 2026

Sale - Save 3% $ 2,861.81

This product was last offered at the strikethrough price on
04-06-2026

$ 2,768.16 USD

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Sale - Save 3%

$ 2,861.81

This product was last offered at the strikethrough price on
04-06-2026

$ 2,768.16 USD

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Introducing the Complete Cylinder Head Basic Replacement Kit for BMW E36, E34, E39, Z3 with M52, S50, and S52 engines - your ultimate solution for efficient and cost-effective engine maintenance. This comprehensive kit is designed to maximize the performance, durability, and longevity of your BMW, ensuring it operates at peak efficiency for years to come. Optimal Engine Performance: Our Complete Cylinder Head Basic Replacement Kit is engineered to enhance your BMW's engine performance. By replacing the cylinder head, you can restore lost power and torque, resulting in improved acceleration and overall driving experience. Improved Fuel Efficiency: Upgrading your BMW with our kit not only boosts power but also enhances fuel efficiency. This means you'll save money on fuel costs while reducing your carbon footprint. Enhanced Durability: The components included in this kit are crafted from high-quality materials, ensuring long-lasting durability. This translates to fewer repairs and less downtime for your vehicle. Cost Savings: Investing in this comprehensive kit is more cost effective than purchasing individual components. It contains everything you need for a cylinder head replacement, eliminating the hassle of sourcing parts separately. OEM-Quality Parts: We prioritize quality and reliability, which is why our kit features OEM-equivalent or superior components. Rest assured that you're getting the best value for your money. Fits Multiple BMW Models: This kit is compatible with various BMW models, including E36, E34, E39, and Z3, with M52, S50, and S52 engines. This versatility ensures that a wide range of BMW enthusiasts can benefit from it. Extended Engine Lifespan: By replacing the cylinder head with our kit, you can significantly extend the lifespan of your BMW engine, leading to more trouble-free miles on the road. Satisfaction Guaranteed: Some kit components are covered by our Lifetime Replacement Program. We stand behind the quality of our Complete Cylinder Head Basic Replacement Kit. Your satisfaction is our priority, and we offer a satisfaction guarantee to provide peace of mind to our valued customers. Kit includes: 1 - BMW Coolant / Anitfreeze 7 - BMW TwinPower Turbo 5W-30 Engine Oil - 1 Liter 1 - Cylinder Head Bolt Kit 1 - Cylinder Head Installation Kit 14 - Cylinder Head Washer - Cylinder Head Bolts 1 - Engine Oil Drain Plug 28 - Exhaust Manifold Nuts 1 - Liquid Assembly Lube - 12 oz 1 - M52 / S52 Cylinder Head - Complete 1 - Turner Motorsport Oil Change Sticker 1 - Oil Filter Kit

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