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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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ECS M62TU Vanos Seal Rebuild Kit - E39, E38, E53
ECS M62TU Vanos Seal Rebuild Kit - E39, E38, E53
ECS - Corporate Logo
T#:396674
Part#: 017301ECS01
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This product was last offered at the strikethrough price on
06-13-2026

$ 50.99 USD
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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 thought 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.

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WPC Treated Rod Bearing Set - M42, M44, M20, M50, M52, S50, S52, M54 Engines
WPC Treated Rod Bearing Set - M42, M44, M20, M50, M52, S50, S52, M54 ...
ECS - Corporate Logo
T#:395066
Part#: 11241284849WPC
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This product was last offered at the strikethrough price on
06-13-2026

$ 141.74 USD
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These WPC-treated bearings are the best we have seen! WPC is a shot-peening treatment at a microscopic level. It's perfect for sensitive surfaces like bearings. The WPC treatment removes imperfections and high spots, while creating a surface that retains oil better than the original surface. This greatly reduces friction. The bearings in this kit are original equipment KS bearings that are sent to WPC for treatment. The treated bearings are stronger with less metal fatigue and less friction than buying off-the-shelf bearings from the dealer.

This item fits the following BMWs: 
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix 
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1982-1988 E28 BMW 528e
1989-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 
2004-2006 E83 BMW X3 2.5i X3 3.0i 
2000-2006 E53 BMW X5 3.0i 
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i 

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Timing Chain - Upper
Timing Chain - Upper
Bavarian Autosport - Corporate Logo
T#:17871154
Part#: 11311432177
In Stock
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This product was last offered at the strikethrough price on
05-03-2026

$ 22.39 USD
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Timing Component
Timing Component
Bavarian Autosport - Corporate Logo
T#:17871158
Part#: 11367583208
In Stock
Sale - Save 20% $ 199.99

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

$ 159.99 USD
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WPC Treated Crank Bearing Set
WPC Treated Crank Bearing Set
ECS - Corporate Logo
T#:585720
Part#: 11211706847WPCKT
In Stock
Sale - Save 3% $ 250.99

This product was last offered at the strikethrough price on
06-14-2026

$ 243.46 USD
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What's better than using new crank bearings in your next engine build? WPC-treated bearings! What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. What are you waiting for? Use WPC-treated bearings on your next engine build or crank service!
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Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 280 Degree, 12.5mm Lift
Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 280 Degree, 12.5m...
Schrick - Corporate Logo
T#:1259
Part#: TMS1259
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Sale - Save 5% $ 1,775.98

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

$ 1,687.18 USD
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E46 M3 Schrick 280 Degree Exhaust Camshaft with 12.5mm lift. This was originally desinged for the M3 CSL but works great in the standard M3. This cam is slightly more agressive than the "original" Schrick 272 degree (which we also offer). A new rocker arm is required (Schrick or new BMW part #11337833259).

BMW Schrick Technical Specs Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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BMW US S50 6 Cyl. 284-Degree - Intake Camshaft
BMW US S50 6 Cyl. 284-Degree - Intake Camshaft
Schrick - Corporate Logo
T#:554296
Part#: 0284E1840-0V1
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This product was last offered at the strikethrough price on
07-07-2026

$ 1,468.79 USD
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Schrick has been dedicated to engine performance through the development of only the highest-quality camshafts for more than 40 years. They've created a bond with BMW enthusiasts nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. These are the same cams used by many high-end German tuners who are achieving sizeable gains with the US S50 engine. For the power-hungry, these cams are a great way to achieve a linear increase in horsepower from mid-range, up to redline. Duration Intake- 284 Duration Intake @ 1mm - 253 Intake Peak Timing - 122 Cam Lobe Lift Intake - 11, 9 Valve Lift w/o Valve Clearance Intake - 11, 9 Valve Clearance Intake - 0,25
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Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 272 Degree, 12.5mm Lift
Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 272 Degree, 12.5m...
Schrick - Corporate Logo
T#:338215
Part#: TMS11749
Ships on Dec 3, 2026
Sale - Save 15% $ 2,553.99

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

Starting at $ 2,165.97 USD
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E46 M3 Schrick 272 Degree Exhaust Camshaft with 12.5mm valve lift. New rocker arms are required (BMW part #11337833259 or a new Schrick part).

BMW Schrick Technical Specs Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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BMW N52 N54 Collar Screw
BMW N52 N54 Collar Screw
Bavarian Autosport - Corporate Logo
T#:17871157
Part#: 11367524954
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This product was last offered at the strikethrough price on
05-03-2026

$ 4.79 USD
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Holds the camshaft gear to the camshaft, measures M10X1X94.
Schrick Intake Camshaft - E46 M3, MZ3, MZ4 (S54) - 288 Degree, 12.5mm Lift
Schrick Intake Camshaft - E46 M3, MZ3, MZ4 (S54) - 288 Degree, 12.5mm...
Schrick - Corporate Logo
T#:338222
Part#: TMS3572
Ships on Dec 3, 2026
Sale - Save 28% $ 5,600.99

This product was last offered at the strikethrough price on
07-08-2026

Starting at $ 4,048.04 USD
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E46 M3 Schrick 288 Degree Intake Camshaft with 12.5mm valve lift. Originally desinged for the M3 CSL but works great in a standard M3. A new rocker arm is required (Schrick or new BMW part #11337833259). This is a more agressive cam that the Schrick 280 degree cam that we also offer for the E46M3

BMW Schrick Technical Specs Schrick Technical Information / Specs

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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WPC Treated Genuine BMW Bearings - Single Bearing
WPC Treated Genuine BMW Bearings - Single Bearing
ECS - Corporate Logo
T#:585808
Part#: 11217849238WPCKT
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05-03-2026

$ 43.08 USD
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WPC Treated Genuine BMW Bearings - Single Bearing
WPC Treated Genuine BMW Bearings - Single Bearing
ECS - Corporate Logo
T#:585807
Part#: 11217849234WPC
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$ 39.63 USD
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WPC Treated Genuine BMW Bearings - Single Bearing
WPC Treated Genuine BMW Bearings - Single Bearing
ECS - Corporate Logo
T#:5470995
Part#: 11247617339WPC
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05-03-2026

$ 42.63 USD
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WPC Treated Rod Bearings Set - 4 Cylinder
WPC Treated Rod Bearings Set - 4 Cylinder
ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
Ships on Sep 10, 2026
Sale - Save 10% $ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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$ 559.99

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Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 280 Degree, 14.0mm Lift
Schrick Exhaust Camshaft - E46 M3, MZ3, MZ4 (S54) - 280 Degree, 14.0m...
Schrick - Corporate Logo
T#:338217
Part#: TMS201495
Ships on Dec 3, 2026
Sale - Save 10% $ 3,804.99

This product was last offered at the strikethrough price on
07-08-2026

Starting at $ 3,424.49 USD
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E46 M3 Schrick 280 Degree Exhaust Camshaft with 14.0mm valve lift. This is only for use in professionally-built E46 M3 race engines. Schrick has developed this ultra-aggressive S54 race cam with 280-deg duration and 14mm of valve lift. Because of the aggressive profile and specs of this cam, Schrick only recommends it be used with special custom pistons with deep valve reliefs. We strongly recommend this be professionally installed by an experienced engine builder to check clearances and fitment.

Schrick also requires valvetrain hardware to go along with this cam:
Schrick valve springs
Schrick rocker arms
Schrick upper and lower retainers

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster, Z3 M Coupe
2006-2008 E85 BMW Z4 M Roadster, Z4 M Coupe
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WPC Treated Rod Bearings Set
WPC Treated Rod Bearings Set
ECS - Corporate Logo
T#:13299333
Part#: 11248053291WP2KT
Ships on Sep 11, 2026
Sale - Save 3% $ 923.99

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$ 896.16 USD
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WPC Treated Rod Bearings Set - 3 Cylinder
WPC Treated Rod Bearings Set - 3 Cylinder
ECS - Corporate Logo
T#:17073562
Part#: 11247620969WP4KT
Ships on Sep 10, 2026
Sale - Save 10% $ 419.99

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$ 377.95 USD
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WPC Treated Rod Bearings Set
WPC Treated Rod Bearings Set
ECS - Corporate Logo
T#:13299336
Part#: 11247620969WP2KT
Ships on Sep 10, 2026
Sale - Save 10% $ 839.99

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$ 755.89 USD
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WPC Treated Rod Bearings Set
WPC Treated Rod Bearings Set
ECS - Corporate Logo
T#:5484815
Part#: 11248053291WPCKT
Ships on Sep 11, 2026
Sale - Save 3% $ 923.99

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$ 896.16 USD
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What's better than using Original BMW connecting rod bearings in your next engine build? WPC-treated OEM bearings! What is WPC, you ask? WPC is a surface treatment that reduces friction and adds strength - two improvements that benefit internal engine components. Ultra-fine particles are fired at the surface at very high speeds, like shot-peening - but much, much smaller. The parts come out smoother and stronger due to thermal discharge. The two largest enemies of any high-performance engine are heat and friction - and WPC has found a way to reduce both. What are you waiting for? Use WPC-treated bearings on your next engine build or rod bearing service!
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WPC Treated Main Bearing Set
WPC Treated Main Bearing Set
ECS - Corporate Logo
T#:13299340
Part#: 11217849234KT2
Ships on Sep 18, 2026
Sale - Save 5% $ 888.86

This product was last offered at the strikethrough price on
06-14-2026

$ 844.42 USD
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N54 Schrick Camshaft Set 268/265
N54 Schrick Camshaft Set 268/265
Schrick - Corporate Logo
T#:25739348
Part#: N54CAMSKT
Ships on Dec 3, 2026
Sale - Save 10% $ 3,415.99

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

$ 3,074.39 USD
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Take your N54-powered BMW to the next level with this upgraded camshaft kit from Schrick Cams! Increasing the air allowed in and out of the motor by increasing both lift and duration over stock is one of the most effective ways to add power to your car next to adding more boost. We recommend finding a competent tuner to get the most out of your individual setup. Duration Duration Intake: 268 Duration Intake @ 1mm: 219 Duration Exhaust: 264 Duration Exhaust @ 1mm: 214 Intake Peak Timing: 125,6 Exhaust Peak Timing: -128 Lift Cam Lobe Lift Intake: 7,2 Cam Lobe Lift Exhaust: 6,54 Valve Lift Without Valve Clearance Intake: 12 Valve Lift Without Valve Clearance Exhaust: 11 Valve Clearance Intake: hydr. Valve Clearance Exhaust:
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