Engine Internals

BMW engine internals include the rotating assembly - crankshaft, connecting rods, pistons, rings, bearings, sprockets, caps, and other items you would find when doing an engine rebuild or overhaul. From decades of racing experience we insist on selling the highest quality internal engine components that give the best performance with the longest life.

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Repair Kit Piston Rings 86,415mm - S52 (US) - E36 M3 / MZ3 - 11251405783

High quality, 24 Month Warranty

Price: $45.94
132.36

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Genuine BMW Repair Kit Piston Rings - M50/M52/M52tu - 11251437077

Genuine BMW # 11251437077

Price: $101.39
106.72

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E30 M3 Crank Gear

Genuine BMW # 11211308467

Price: $164.71
187.41

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Piston Ring Kit, 88.97mm (0), OEM - 2002, E21, E30, E12, E28, E24, E9, Bavaria, E23, M10, M30B32

OEM piston rings in the standard size replaces BMW part #11251261130

Price: $17.99
72.85

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Repair Kit Piston Rings - M10/M30 Engines - 89.47mm(+0.50) - 11251261132

High quality OE piston rings

Price: $18.99
72.28

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Engine Repair Kit PISTON RINGS 11251310780

High quality, 24 Month Warranty

Price: $41.99

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Repair Kit Piston Rings 86,020mm(00) - 11251403810 - E36 M3

High quality, 24 Month Warranty

Price: $47.66
157.06

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Genuine BMW Piston Kit 86,170mm(+0,20) - 11251404963 - E36 M3

Genuine BMW # 11251404963

Price: $1,369.36
1601.59

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Piston Kit 86.565mm (+0.20) - S52 US 3.2 Liter - 11251405704

Mahle OEM oversize piston with rings, wristpin, and lock rings for S52 6-cylinder engines. Sold individually.

Price: $249.99
2701.87

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Repair Kit Piston Rings 83,980mm("0"), Goetze - E30/E28 ETA

OEM-quality piston ring set for one cylinder on the BMW M20 ETA engine.

Price: $23.09
86.29

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Repair Kit Piston Rings - M20 & Early M50 6 Cylinder - 11251713192

High quality OE Goetze piston rings for the

Price: $21.57
56.19

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Repair Kit Piston Rings - 84,230MM (+0,25) - M20 & M50 NV Engines

Original BMW piston ring set for a single pistin on M20 and M50 6-cylinder engines.

Price: $63.68
67.03

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Repair Kit Piston Rings - 11251714383

High quality, 24 Month Warranty

Price: $38.40
77.69

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Piston - M20 Oversized (+0.50) - E30 325i / E34 525i - 11251714810

High quality OE oversized piston ideal for second overbore engine builds

Price: $111.67
272.28

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Repair Kit Piston Rings 11251727461

High quality, 24 Month Warranty

Price: $24.04
56.19

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Piston Ring Set (Single Piston), Mahle OEM - E46, E39, E60, E83, E53, Z3, E85, M54 3.0-liter

High quality OE piston rings, enough to replace the rings on one piston / cylinder

Price: $37.87
105.68

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Repair Kit Piston Rings - 11257511697

High quality, 24 Month Warranty

Price: $34.81
85.71

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Genuine BMW Alusil Piston Rings Kit - E39 M5, Z8

Genuine BMW # 11257843751

Price: $219.36
230.90

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Piston Ring Kit (Alusil), Mahle - E39 540i, E38 740i, E53 X5 4.4i, M62TU

OEM piston rings in the standard bore

Price: $39.99
135.72

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ARP Assembly Lube

Ultra-Torque lubricant ensures you can precisely duplicate ARP fastener preload specifications

Price: $1.99
2.33

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Rod Bearing Set, OEM - M20, M50, M52, M52TU, M54, M56, S50, S52

OEM rod bearing set for 6-cylinder

Price: $49.99
414.48

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Main Bearing Set, OEM - M20, M42, M50, M52, M44, M54, S50, S52, S54

Yellow-coded main bearing set in standard size

Price: $109.99
132.48

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Genuine BMW Crankshaft - N54 - 11217527881

Genuine BMW # 11217527881

Price: $2,047.41
2255.77

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WPC-Treated Rod Bearing Set - E46 M3, Z4M

Race-ready treated S54 rod bearings for peak performance and high-revving durability

Price: $629.99

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WPC Treated Rod Bearing Package - E90/E92/E93 M3

Race-ready treated S65 bearings for peak performance and high-revving durability

Price: $849.99
927.84

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BE-Clevite Connecting Rod Bearing Set - E9X M3, S65 V8

Designed using correct materials and proper tolerances. Replaces Genuine BMW part #11247841703 and 11247841702

Price: $589.99

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WPC-Treated Rod Bearing Set - M50, M52, M52TU, M54, M56, S50, S52

Add longevity to your M50, S50, S52 bearings

Price: $139.99

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WPC-Treated Main Bearing Set - M20, M50, M52, S50, S52, M54, S54

OEM treated bearings for added strength and longevity

Price: $171.99

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Genuine BMW Upper Rod Bearing, Yellow, Standard - 228i/328i/428i, 135i/M235i/335i/435i, 1M/M2/M3/M4

Replacement upper bearing shell - yellow dot color, standard size. Replacement for BMW #11247576714.

Price: $41.05
43.21

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Genuine BMW Upper Rod Bearing, Violet, Standard - 228i/328i/428i, 135i/M235i/335i/435i, 1M/M2/M3/M4

Replacement upper bearing shell - violet dot color, standard size. Replacement for BMW #11247576715.

Price: $41.05
43.21

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Genuine BMW Lower Rod Bearing, Red, Standard - N20, N26, N52, N54, N55, S55

Replacement bearing shell - red dot color, standard size. Replacement for BMW #11247628034

Price: $41.05
43.21

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Genuine BMW Lower Rod Bearing, Blue, Standard - N20, N26, N52, N54, N55, S55

Replacement bearing shell - blue dot color, standard size. Replacement for BMW #11247628035

Price: $41.05
43.21

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Connecting Rod Bolt, M9x47, BMW - M54, N20, N26, N54, N55, B46, B58, S55

New rod bolts are Genuine BMW and direct replacement for BMW part #11247589671.

Price: $3.15
4.05

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WPC Treated Rod Bearings (1 Rod), Yellow/Red - N20, N54, N55, S55

Standard rod bearings with WPC treatment for better oiling performance. Replaces BMW bearings part numbers 11247576714 Yellow and 11247628034 Red bearing shells.

Price: $91.99

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WPC Treated Rod Bearings (1 Rod), Violet/Blue - N20, N54, N55, S55

Standard rod bearings with WPC treatment for better oiling performance. Replaces BMW bearings part numbers 11247576715 Violet and 11247628035 Blue bearing shells.

Price: $91.99

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Genuine BMW Connecting Rod Bolt - E60 M5, E63 M6, E9X M3

Genuine BMW rod bolt for S65 V8 and S85 V10 replaces BMW part #11247834522

Price: $12.66
13.80

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ARP Rod Bolt Kit - M52, M52TU, M54B30, N20/N26, N54, N55, B46, B58, S55

Durable high-performance Pro Series bolts to replace your soft factory rod bolts

Price: $194.44
243.05

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WPC Treated Rod Bearings (1 Rod), Red Code - E82 128i, E9X 325i/328i/330i, E60 525i/530i, X3, X5

Standard rod bearings with WPC treatment for better oiling performance. Replaces BMW bearings part number 1247628034 Red bearing shells.

Price: $75.98

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WPC Treated Rod Bearings (1 Rod), Blue Code - E82 128i, E9X 325i/328i/330i, E60 525i/530i, X3, X5

Standard rod bearings with WPC treatment for better oiling performance. Replaces BMW bearings part number 1247628035 Blue bearing shells.

Price: $91.98

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Genuine BMW Crankshaft - 335i/435i/535i, X3/X4/X5/X6 35i

Replacement crankshaft for N55 engine. Genuine BMW part #11217580483

Price: $2,080.50
2255.77

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Engine Internals

Repair Kit Piston Rings 86,415mm - S52 (US) - E36 M3 / MZ3 - 11251405783

Price: $45.94 132.36

Genuine BMW Repair Kit Piston Rings - M50/M52/M52tu - 11251437077

Price: $101.39 106.72

E30 M3 Crank Gear

Price: $164.71 187.41

Piston Ring Kit, 88.97mm (0), OEM - 2002, E21, E30, E12, E28, E24, E9, Bavaria, E23, M10, M30B32

Price: $17.99 72.85

Repair Kit Piston Rings - M10/M30 Engines - 89.47mm(+0.50) - 11251261132

Price: $18.99 72.28

Engine Repair Kit PISTON RINGS 11251310780

Price: $41.99

Repair Kit Piston Rings 86,020mm(00) - 11251403810 - E36 M3

Price: $47.66 157.06

Genuine BMW Piston Kit 86,170mm(+0,20) - 11251404963 - E36 M3

Price: $1,369.36 1601.59

Piston Kit 86.565mm (+0.20) - S52 US 3.2 Liter - 11251405704

Price: $249.99 2701.87

Repair Kit Piston Rings 83,980mm("0"), Goetze - E30/E28 ETA

Price: $23.09 86.29

Repair Kit Piston Rings - M20 & Early M50 6 Cylinder - 11251713192

Price: $21.57 56.19

Repair Kit Piston Rings - 84,230MM (+0,25) - M20 & M50 NV Engines

Price: $63.68 67.03

Repair Kit Piston Rings - 11251714383

Price: $38.40 77.69

Piston - M20 Oversized (+0.50) - E30 325i / E34 525i - 11251714810

Price: $111.67 272.28

Repair Kit Piston Rings 11251727461

Price: $24.04 56.19

Piston Ring Set (Single Piston), Mahle OEM - E46, E39, E60, E83, E53, Z3, E85, M54 3.0-liter

Price: $37.87 105.68

Repair Kit Piston Rings - 11257511697

Price: $34.81 85.71

Genuine BMW Alusil Piston Rings Kit - E39 M5, Z8

Price: $219.36 230.90

Piston Ring Kit (Alusil), Mahle - E39 540i, E38 740i, E53 X5 4.4i, M62TU

Price: $39.99 135.72

ARP Assembly Lube

Price: $1.99 2.33

Rod Bearing Set, OEM - M20, M50, M52, M52TU, M54, M56, S50, S52

Price: $49.99 414.48

Main Bearing Set, OEM - M20, M42, M50, M52, M44, M54, S50, S52, S54

Price: $109.99 132.48

Genuine BMW Crankshaft - N54 - 11217527881

Price: $2,047.41 2255.77

WPC-Treated Rod Bearing Set - E46 M3, Z4M

Price: $629.99

WPC Treated Rod Bearing Package - E90/E92/E93 M3

Price: $849.99 927.84

BE-Clevite Connecting Rod Bearing Set - E9X M3, S65 V8

Price: $589.99

WPC-Treated Rod Bearing Set - M50, M52, M52TU, M54, M56, S50, S52

Price: $139.99

WPC-Treated Main Bearing Set - M20, M50, M52, S50, S52, M54, S54

Price: $171.99

Genuine BMW Upper Rod Bearing, Yellow, Standard - 228i/328i/428i, 135i/M235i/335i/435i, 1M/M2/M3/M4

Price: $41.05 43.21

Genuine BMW Upper Rod Bearing, Violet, Standard - 228i/328i/428i, 135i/M235i/335i/435i, 1M/M2/M3/M4

Price: $41.05 43.21

Genuine BMW Lower Rod Bearing, Red, Standard - N20, N26, N52, N54, N55, S55

Price: $41.05 43.21

Genuine BMW Lower Rod Bearing, Blue, Standard - N20, N26, N52, N54, N55, S55

Price: $41.05 43.21

Connecting Rod Bolt, M9x47, BMW - M54, N20, N26, N54, N55, B46, B58, S55

Price: $3.15 4.05

WPC Treated Rod Bearings (1 Rod), Yellow/Red - N20, N54, N55, S55

Price: $91.99

WPC Treated Rod Bearings (1 Rod), Violet/Blue - N20, N54, N55, S55

Price: $91.99

Genuine BMW Connecting Rod Bolt - E60 M5, E63 M6, E9X M3

Price: $12.66 13.80

ARP Rod Bolt Kit - M52, M52TU, M54B30, N20/N26, N54, N55, B46, B58, S55

Price: $194.44 243.05

WPC Treated Rod Bearings (1 Rod), Red Code - E82 128i, E9X 325i/328i/330i, E60 525i/530i, X3, X5

Price: $75.98

WPC Treated Rod Bearings (1 Rod), Blue Code - E82 128i, E9X 325i/328i/330i, E60 525i/530i, X3, X5

Price: $91.98

Genuine BMW Crankshaft - 335i/435i/535i, X3/X4/X5/X6 35i

Price: $45.94
132.36

Price: $101.39
106.72

Price: $164.71
187.41

Price: $17.99
72.85

Price: $18.99
72.28

Price: $47.66
157.06

Price: $1,369.36
1601.59

Price: $249.99
2701.87

Price: $23.09
86.29

Price: $21.57
56.19

Price: $63.68
67.03

Price: $38.40
77.69

Price: $111.67
272.28

Price: $24.04
56.19

Price: $37.87
105.68

Price: $34.81
85.71

Price: $219.36
230.90

Price: $39.99
135.72

Price: $1.99
2.33

Price: $49.99
414.48

Price: $109.99
132.48

Price: $2,047.41
2255.77

Price: $849.99
927.84

Price: $41.05
43.21

Price: $41.05
43.21

Price: $41.05
43.21

Price: $41.05
43.21

Price: $3.15
4.05

Price: $12.66
13.80

Price: $194.44
243.05

Price: $2,080.50
2255.77