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BMW Internal Engine Parts

Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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AMC - Corporate Logo
T#:19277
Part#: 11127514540
Ships on Aug 17, 2026
$ 1,869.02 USD
$ 1,869.02 USD


CYLINDER HEAD WITH BEARING L 11127514540 Manufactured by AMC New

AMC - Corporate Logo
T#:383390
Part#: 11127514540-3
Ships on Aug 17, 2026
$ 1,562.99 USD
$ 1,562.99 USD
Complete cylinder head with guides, seats, valves, springs, and all neccesary hardware for installation
AMC - Corporate Logo
T#:383388
Part#: 11121703637
Ships on Aug 17, 2026
$ 1,631.99 USD
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$ 1,631.99 USD
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Bare head with guides and seats only

AMC - Corporate Logo
T#:22168
Part#: 11121707032
Ships on Aug 17, 2026
$ 999.00 USD
$ 999.00 USD
This replacement cylinder head for BMW M20B25 6 cylinder engine includes new valve guides and seals. The stock valve guides are not replaceable so if you need new guides you likely need a new cylinder head.This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Genuine BMW - Corporate Logo
T#:5135658
Part#: 11258637991
Special Order: No Guaranteed ETA
4% 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.

$ 127.99 USD
Free Shipping
4% 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.

$ 127.99 USD
Free Shipping
Includes upper, lower, and oil control ring - 6 sets needed per vehicle
Packaged by Turner - Corporate Logo
T#:2810081
Part#: 11121707032-3KT
Ships on Aug 14, 2026
Sale - Save 1% $ 1,614.99

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

$ 1,600.35 USD
Free Shipping
Sale - Save 1%
$ 1,614.99

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

$ 1,600.35 USD
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Includes all of the necessary components to service and replace the head on your M20 powered BMW

Packaged by Turner - Corporate Logo
T#:15744068
Part#: 114278337690-KT
Ships on Aug 20, 2026
Sale - Save 4% $ 2,878.47

This product was last offered at the strikethrough price on
02-27-2026

$ 2,761.87 USD
Sale - Save 4%
$ 2,878.47

This product was last offered at the strikethrough price on
02-27-2026

$ 2,761.87 USD
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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Packaged by Turner - Corporate Logo
T#:22822554
Part#: E30HEADRPLCKT
Ships on Aug 14, 2026
$ 1,607.99

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

$ 1,603.31 USD
$ 1,603.31 USD
Upgrade your BMW M20 2.5L and 2.7L engine with our Complete Cylinder Head Basic Replacement Kit . This kit includes the following essential components:
  • Cylinder Head Washer
  • BMW Coolant / Antifreeze - 1 gallon
  • Copper Exhaust Lock Nut
  • Oil Filter
  • Cylinder Head Bolt Set
  • Engine Oil Drain Plug Washer
  • Dielectric Spark Plug Boot Protector
  • BMW TwinPower Turbo 5W-30 Engine Oil
  • Cylinder Head Gasket
  • Assembly Lube - 4 oz
  • Engine Oil Drain Plug
  • M20 Cylinder Head - complete
Ensure a seamless and efficient replacement process for optimal performance.
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Packaged by Turner - Corporate Logo
T#:15744016
Part#: 11137832023-KT
In Stock at Vendor
$ 696.99

This product was last offered at the strikethrough price on
07-22-2026

$ 695.99 USD
Free Shipping on orders $49 and up
$ 695.99 USD
Free Shipping on orders $49 and up
The S54 engine has a known history of rod bearing failure, and if your engine is higher mileage, don't let this catastrophic failure happen to you. Replace your rod bearings and prevent a spun bearing which can trash your crankshaft. BE Bearings, in conjunction with Clevite, an OE bearing manufacturer, have redesigned and manufactured the bearings for greater clearance and have changed the original material composition from tin-aluminum to lead-copper. This upgrade incorporated the state-of-the-art Clevite Tri-Metal design and featured a Tri-Armor™ coating. This allows for the additional lubrication for wear prevention, plus, the softer bearings are better for your engine and are more tolerant of foreign particles suspended in your oil. Another benefit from this is that the oil can now be sent for testing to accurately gauge the amount of wear occurring in the engine. Kit includes Upper and lower BE Bearings upgraded rod bearings for extra protection against wear Hardware Oil filter Castrol TWS Edge Professional Oil pan gasket Oil pan cover gasket RedLine assembly lube
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Mahle Motorsports - Corporate Logo
T#:2929002
Part#: 197883929T
Special Order: No Guaranteed ETA
$ 1,435.99 USD
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$ 1,435.99 USD
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Forged, 2618. Get the performance and reliability your B58 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2958763
Part#: 930286125T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
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$ 1,271.99 USD
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Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929006
Part#: 930000135
Special Order: No Guaranteed ETA
$ 1,088.99

This product was last offered at the strikethrough price on
01-27-2026

$ 1,085.99 USD
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$ 1,085.99 USD
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Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929010
Part#: 930024409T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
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Forged, 4032. Get the performance and reliability your S52 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Genuine BMW - Corporate Logo
T#:32591
Part#: 11217522988
Special Order: No Guaranteed ETA
1% off MSRP $ 70.99

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

$ 69.99 USD
Free Shipping on orders $49 and up
1% off MSRP
$ 70.99

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

$ 69.99 USD
Free Shipping on orders $49 and up


Genuine BMW Guide-Bearing Shell Yellow - 70,00Mm(0)
This item fits the following BMW Chassis:
E53 48IS,E53 X5 X5,E63,E65,E70 X5

Fits BMW Engines including:
N62,N73,N62N

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Mahle Motorsports - Corporate Logo
T#:2929005
Part#: 930000135T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
Free Shipping
Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929013
Part#: 930024709T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
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Mahle Motorsports - Corporate Logo
T#:2928991
Part#: 197859522T
Special Order: No Guaranteed ETA
$ 1,782.99 USD
Free Shipping
$ 1,782.99 USD
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Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2928971
Part#: 197832209T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
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Forged, 2618. Phosphate + Grafal + Hard Anodized top ring groove + TBC Get the performance and reliability your N54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston. MAHLE forged pistons more tolerant to the abuses of extreme heat, detonation and pressure inherent in performance oriented engines.
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Mahle Motorsports - Corporate Logo
T#:2929007
Part#: 930000145
Special Order: No Guaranteed ETA
$ 1,088.50 USD
Free Shipping on orders $49 and up
Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2958765
Part#: 930286135T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
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Achieve enhanced performance and reliability for your BMW S54 engine with the MAHLE Motorsports PowerPak Piston Kit. This kit replaces the factory cast aluminum pistons with robust forged pistons, offering superior strength and durability. MAHLE forged pistons are engineered to withstand extreme heat, detonation, and pressure, making them ideal for high-performance engines. MAHLE Motorsport's PowerPak and PowerPak+ piston kits ensure exceptional reliability and performance, elevating your BMW engine build to new heights. The range includes BMW piston sets in 2618, 4032, and M142 alloys, catering to N54, S54, and Mini Cooper models. These piston sets come complete with pins, clips, and rings, designed for both motorsport applications and those seeking to enhance daily driver performance. Notably, the latest addition is the B58 3.0L, featured in the 2020 Toyota Supra. Drawing on over 95 years of performance expertise and employing MAHLE-manufactured machinery for unique features, MAHLE Motorsport ensures uncompromising quality.
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Mahle Motorsports - Corporate Logo
T#:2928983
Part#: 197843322T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
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Forged 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2928996
Part#: 197859622T
Special Order: No Guaranteed ETA
$ 1,782.99 USD
Free Shipping
$ 1,782.99 USD
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Forged, 4032. Get the performance and reliability your S85 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929008
Part#: 930000145T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
Free Shipping
Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929004
Part#: 930000045T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
Free Shipping
Forged, 2618. Get the performance and reliability your S54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2928988
Part#: 197843622T
Special Order: No Guaranteed ETA
$ 1,673.99 USD
Free Shipping
$ 1,673.99 USD
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Forged, 4032. Get the performance and reliability your S65 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2928979
Part#: 197843112T
Special Order: No Guaranteed ETA
$ 1,103.99 USD
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$ 1,103.99 USD
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Forged 4032. Get the performance and reliability your M54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Genuine MINI - Corporate Logo
T#:33527
Part#: 11257566019
Special Order: No Guaranteed ETA
10% off MSRP $ 414.20

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

$ 370.99 USD
Free Shipping
10% off MSRP
$ 414.20

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

$ 370.99 USD
Free Shipping
Genuine MINI MAHLE PISTON
Fits BMW Engines including:
N14


Wiseco - Corporate Logo
T#:339073
Part#: WISECO2.5
Ships on Sep 1, 2026
Starting at $ 699.80 USD
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Starting at $ 699.80 USD
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The TMS/Wiseco 11.25:1 piston set was designed for use with the Evo3 2.5 liter crank and 2.3 connectig rods. The pistons are 95mm bore. Each set comes with rings, wrist pins and clips. Now also available in a +.25mm Overbore!

For seventy five years, Wiseco has been the piston of choice when it’s time to replace engine internals. To this day Wisco is one of the sole manufacturers of forged pistons within the United States and continues develop new and exciting products everyday.

Piston Specs:
Comp Height = 1.200
Bore Size = 3.7400 (as measured on piston skirt, 1.3" below oil ring)
Suggested Clearance = .0040
Weight = 388-389g (varies piston to piston)
Valve Pocket Dia. = 1.60 (i) / 1.40 (e)
Valve Pocket Angle = 18 (i) / 19.50 (e)
Depth from TE = -.1050 (i) / -.1350 (e)

This item fits the following BMWs:
1987-1991 E30 BMW M3 with Turner 2.5 Kit
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Wiseco - Corporate Logo
T#:387797
Part#: TEN300623SKT
Ships on Sep 2, 2026
$ 699.00 USD
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$ 699.00 USD
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Wiseco BMW E30 M3 Piston set - 3.720" bore. Wiseco leads the performance aftermarket by producing the highest quality forged pistons. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high-performance motorsport applications require. Each set comes with rings, wrist pins, and clips. Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. The Wiseco crew shares the same level of dedication to motorsports as their customers and are focused on continually refining the quality and practices it takes to exceed expectations. Engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco’s Mentor, Ohio manufacturing facility, Wiseco pistons are the undisputed leader in quality and performance. Wiseco Performance Products, built for racers, by racers. Bore Diameter - 94.50 Compression Height - 32.00 Forging Type - Full Round Oil Ring Thickness2.8 Piston Material - 2618 Piston Pin Included - Yes Piston Pin Material - 9310 Piston Volume - -32.00 Product Series - European Product Types - Piston Kits Ringset Included - Yes Second Compression Ring Thickness - 1.2 Skirt Coating - Y Top Compression Ring Thickness - 1.0 Wrist Pin Diameter - 0.866 Wrist Pin Style - Floating This item fits the following BMWs: 1988-1991 E30 BMW M3 2.3 liter
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Cat Cams - Corporate Logo
T#:25805752
Part#: 1305002
Special Order: No Guaranteed ETA
$ 1,950.00 USD
Free Shipping on orders $49 and up
Upgrade your N54 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Hot Street cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! The VANOS (VVT) system on the intake camshaft changes the PD from 125° to 70°. The data are shown for full intake retard (disengaged VVT).The VANOS (VVT) system on the exhaust camshaft changes the PD from 130° to 85°. The data are shown for full exhaust advance (disengaged VVT). Tuning advised!
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Cat Cams - Corporate Logo
T#:25805753
Part#: 1305003
Special Order: No Guaranteed ETA
$ 1,950.00 USD
Free Shipping on orders $49 and up
Upgrade your N54 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their race cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! The VANOS (VVT) system on the intake camshaft changes the PD from 125° to 70°. The data are shown for full intake retard (disengaged VVT). The VANOS (VVT) system on the exhaust camshaft changes the PD from 130° to 85°. The data are shown for full exhaust advance (disengaged VVT). Tuning Required!
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Cat Cams - Corporate Logo
T#:578585
Part#: 1303508
Special Order: No Guaranteed ETA
$ 2,233.99 USD
Free Shipping
$ 2,233.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat Cams - Corporate Logo
T#:578584
Part#: 1303507
Special Order: No Guaranteed ETA
$ 2,233.99 USD
Free Shipping
$ 2,233.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat Cams - Corporate Logo
T#:578582
Part#: 1303702
Special Order: No Guaranteed ETA
$ 2,233.99 USD
Free Shipping
$ 2,233.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.
Cat Cams - Corporate Logo
T#:578590
Part#: 1301108
Special Order: No Guaranteed ETA
$ 1,406.99 USD
Free Shipping
$ 1,406.99 USD
Free Shipping
Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.
Cat Cams - Corporate Logo
T#:578587
Part#: 1304406
Special Order: No Guaranteed ETA
$ 1,642.99 USD
Free Shipping
$ 1,642.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.


Cat Cams - Corporate Logo
T#:578591
Part#: 1301109
Special Order: No Guaranteed ETA
$ 1,406.99 USD
Free Shipping
$ 1,406.99 USD
Free Shipping
Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.
Cat Cams - Corporate Logo
T#:578599
Part#: 1301712
Special Order: No Guaranteed ETA
$ 1,170.00 USD
Free Shipping
$ 1,170.00 USD
Free Shipping
Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat Cams - Corporate Logo
T#:5858417
Part#: 1304213
Special Order: No Guaranteed ETA
$ 1,524.99 USD
Free Shipping
$ 1,524.99 USD
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Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 257° Exhaust @ .1mm: 257° Intake @ 1mm: 220° Exhaust @ 1mm: 220° Lift Intake: 10.15mm Exhaust: 10.15mm Lobe Angle Intake: 110° Exhaust: 105°
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Cat Cams - Corporate Logo
T#:578578
Part#: 1300657
Special Order: No Guaranteed ETA
$ 933.99 USD
Free Shipping
$ 933.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.
Cat Cams - Corporate Logo
T#:578593
Part#: 1301411
Special Order: No Guaranteed ETA
$ 1,051.99 USD
Free Shipping
$ 1,051.99 USD
Free Shipping
Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

CP Carrillo - Corporate Logo
T#:637130
Part#: CP-FPS-S14-2.3A
Special Order: No Guaranteed ETA
$ 899.99 USD
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$ 899.99 USD
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Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis and R&D. As in racing, it takes a lot to be number one; here at CP-Carrillo we have it all and are number one in piston design, enabling our customers to come in first on race day.
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Schrick - Corporate Logo
T#:26904914
Part#: SCH-N52-238/272
Special Order: No Guaranteed ETA
$ 1,749.99 USD
Free Shipping on orders $49 and up

Mahle Motorsports - Corporate Logo
T#:2928969
Part#: 197841309T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
Free Shipping
$ 1,271.99 USD
Free Shipping
Forged, 2618. Get the performance and reliability your N54 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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Mahle Motorsports - Corporate Logo
T#:2929000
Part#: 197879807T
Special Order: No Guaranteed ETA
$ 1,271.99 USD
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$ 1,271.99 USD
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Forged, 2618. Get the performance and reliability your S55 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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ACL - Corporate Logo
T#:637190
Part#: 6B1584H-.025
Special Order: No Guaranteed ETA
$ 261.99 USD
Free Shipping
$ 261.99 USD
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Upgraded Bearing Shells for you N55/N54/S55B30!
ECS - Corporate Logo
T#:394295
Part#: 012016ECS
In Stock at Vendor
Sale - Save 13% $ 307.99

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

Starting at $ 269.21 USD
Free Shipping
Sale - Save 13%
$ 307.99

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

Starting at $ 269.21 USD
Free Shipping

If you're not sure if your VANOS seals are bad then the only question you need to answer is if you've replaced them. Every unit from the factory came with the same failure prone o-rings and seals, even the re-manufactured units you can still get today. The only real fix is by replacing the seals and o-rings with material that is built to last in the oiled, extreme temperature environment found in these kits. 

A premium product replacement with easy to follow instructions makes rebuilding your VANOS unit a must. Even though the power loss is barely felt it's the opposite result once you replace the seals, every car that gets rebuilt ends up wowing the customer and all of them saying they didn't realize what they lost. 

There are a number of symptoms that will plague your car as a result of these failing seals such as erratic idle, engine hesitation, stalling, and increased fuel consumption to name a few. If you've been chasing down any of these symptoms with no fix then this could be your issue.

While you're replacing the seals in your VANOS unit it a good time to install anti-rattle spacers to tighten up the gaps in your stock assembly and get rid of that noisy VANOS clatter.

This item fits the following BMWs: 
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-1998 E39 BMW 528i 
1997-1998 Z3 BMW Z3 2.8 
1998-2000 Z3 BMW M Roadster M Coupe

 

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Bremmen Parts - Corporate Logo
T#:26904925
Part#: 11211485402
In Stock
Sale - Save 20% $ 32.63

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

$ 26.10 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 32.63

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

$ 26.10 USD
Free Shipping on orders $49 and up
Bremmen Parts - Corporate Logo
T#:5471008
Part#: 11311704945
In Stock
Sale - Save 20% $ 52.01

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

$ 41.61 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 52.01

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

$ 41.61 USD
Free Shipping on orders $49 and up
Lower portion for bank 2 (5-8) This item fits the following BMWs: 1997-1998 E39 BMW 540i 1996-1998 E38 BMW 740i 740ill 1996-1999 E31 BMW 840i 840ci