BMW Internal Engine Parts for BMW E30 M3 S14 2.3L

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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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Main Bearing Set - Standard Size - E30 M3 2.3 liter
Main Bearing Set - Standard Size - E30 M3 2.3 liter
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Glyco - Corporate Logo
T#:3166
Part#: 11210666110
In Stock
$ 99.99

This product was last offered at the strikethrough price on
05-02-2026

$ 87.99 USD
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$ 99.99

This product was last offered at the strikethrough price on
05-02-2026

$ 87.99 USD
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This E30 M3 Main bearing set is in standard size for the 2.3 liter S14 engine. This main bearing kit includes the thrust bearings.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Standard Thrust Bearing - Priced Each
Standard Thrust Bearing - Priced Each
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Kolbenschmidt - Corporate Logo
T#:594829
Part#: 11210666100
Back Ordered
$ 79.99

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

$ 77.99 USD
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$ 77.99 USD
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Genuine BMW Bearing Shell - E34, E28, E30, E24
Genuine BMW Bearing Shell - E34, E28, E30, E24
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Genuine BMW - Corporate Logo
T#:393128
Part#: 11241310515
Ships in 2 Business Days
1% off MSRP $ 73.99

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

$ 72.99 USD
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1% off MSRP
$ 73.99

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$ 72.99 USD
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Bearing Shell Yellow - E24, E28, E30, E34 +0.25
Bearing Shell Yellow - E24, E28, E30, E34 +0.25
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Genuine BMW - Corporate Logo
T#:22231
Part#: 11241310517
In Stock
3% off MSRP $ 72.99

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

$ 70.99 USD
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3% off MSRP
$ 72.99

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$ 70.99 USD
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Genuine BMW Bearing Shell Yellow - 47,750Mm(+0,25)
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
S14,S38

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Genuine BMW Standard Thrust Bearing - E30 318i M10 M3 E21 320i
Genuine BMW Standard Thrust Bearing - E30 318i M10 M3 E21 320i ...
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Genuine BMW - Corporate Logo
T#:12915
Part#: 11210666100
Ships in 4 Business Days
3% off MSRP $ 65.99

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

$ 63.99 USD
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3% off MSRP
$ 65.99

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$ 63.99 USD
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GUIDE-BEARING SHELL RED:H11240


Fits BMW Engines including:
M10,S14

TRW Exhaust Valve - E30, E34
TRW Exhaust Valve - E30, E34
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TRW - Corporate Logo
T#:280
Part#: 11341309487
Back Ordered
71% off MSRP $ 177.99

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

$ 51.99 USD
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71% off MSRP
$ 177.99

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

$ 51.99 USD
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The exhaust valves in your vehicle allow the exhaust port to be sealed during the combustion process, so that the engine can run at top efficiency. If the timing belt or lifter breaks, this can cause the piston to come in contact with the valve and bend or break it, causing an improper seal. This will cause a rough idle, misfires, and a check engine light condition. Be sure to replace your bent or broken valve today and keep your engine running strong.
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Motorsport Valve Springs - E30 M3, E24 M6, E34 M5, E36 Euro M3 (Priced Per Valve)
Motorsport Valve Springs - E30 M3, E24 M6, E34 M5, E36 Euro M3 (Price...
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Genuine BMW - Corporate Logo
T#:281
Part#: 11341315912
In Stock
1% off MSRP $ 40.13

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$ 39.85 USD
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$ 40.13

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$ 39.85 USD
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These Motorsport valve springs are from the Sport Evo 3 model but can be used in all E30 M3s (and others). We found that the stock original valve springs can be too weak when used with upgraded cams and this genuine BMW Motorsport part is an upgrade over the original design. Valve springs also get weaker over time so these are the perfect replacement when refreshing the S14 cylinder head. A weak spring can lead to a burnt valve seat or even a bent valve. These are also the stock springs in the M88/S38 and Euro S50B30.

Priced per valve (price includes 1 inner and 1 outer).

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Genuine BMW Valve Adjustment Feeler Gauge
Genuine BMW Valve Adjustment Feeler Gauge
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Genuine BMW - Corporate Logo
T#:16410
Part#: 83300490942
Ships in 2 Business Days
$ 38.99 USD
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$ 38.99 USD
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GENUINE BMW TEMPLATE
Supertech Upgraded Valve Stem Seal Kit - BMW S14 2.3L
Supertech Upgraded Valve Stem Seal Kit - BMW S14 2.3L
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Supertech - Corporate Logo
T#:641031
Part#: VS-VW7-S14KT
Ships in 8 Business Days
$ 33.99 USD
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$ 33.99 USD
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Includes a full set of polyacrylic intake and viton exhaust valve stem seals! Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 9.8mm/.385" Seal OD: 13.2mm/.520"
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Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-liter Pistons
Replacement Piston Ring Set For Turner Motorsport/Wiseco E30 M3 2.5-l...
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Wiseco - Corporate Logo
T#:26538305
Part#: 9400XX
In Stock
$ 31.99

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

$ 30.99 USD
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$ 31.99

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

$ 30.99 USD
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Rod Bearing - E30 M3, E28 M5, E24 M6, E34 M5 (sold individually)
Rod Bearing - E30 M3, E28 M5, E24 M6, E34 M5 (sold individually) ...
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Glyco - Corporate Logo
T#:183
Part#: 11241310515
In Stock
$ 30.59

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

$ 27.99 USD
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$ 30.59

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

$ 27.99 USD
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E30 M3, E28 M5, E24 M6, E34 M5 Rod Bearing. Sold individually. Standard sizing.

This item fits the following BMWs
1988-1991 BMW E30 M3 - 8 required.
1988 BMW E28 M5 - 12 required.
1989-1993 BMW E34 M5 3.6 liter - 12 required.
1987-1989 BMW E24 M6 - 12 required.
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Valve Seal Set (pack of 8) - E30 M3
Valve Seal Set (pack of 8) - E30 M3
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Victor Reinz - Corporate Logo
T#:282
Part#: 11349059171
Ships on Jul 28, 2026
$ 15.99 USD
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$ 15.99 USD
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E30 M3 Valve Seal Set (package of 8). If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.
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VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 12)
VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 12)
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Supertech - Corporate Logo
T#:35795472
Part#: VS-VW7E-12
Ships in 8 Business Days
$ 13.99 USD
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$ 13.99 USD
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VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 10)
VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 10)
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Supertech - Corporate Logo
T#:35795473
Part#: VS-VW7E-10
Ships in 8 Business Days
$ 12.99 USD
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$ 12.99 USD
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Genuine BMW Exhaust Port Stud (6 X 35 mm) - E30 M3
Genuine BMW Exhaust Port Stud (6 X 35 mm) - E30 M3
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Genuine BMW - Corporate Logo
T#:22167
Part#: 11121312096
Ships in 2 Business Days
$ 10.99 USD
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$ 10.99 USD
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Genuine BMW Stud Bolt - M6X35
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
S14,S38

Piston - E10, E12, E21, E23, E24, E28, E3, E30, E32, E34, E9
Piston - E10, E12, E21, E23, E24, E28, E3, E30, E32, E34, E9 ...
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Genuine BMW - Corporate Logo
T#:6817
Part#: 11421271320
Ships in 5 Business Days
9% off MSRP $ 10.99

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

$ 9.99 USD
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9% off MSRP
$ 10.99

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

$ 9.99 USD
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Genuine BMW Piston

This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
M10,M20,M30,S14,S38

VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 8)
VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 8)
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Supertech - Corporate Logo
T#:35795474
Part#: VS-VW7E-8
Ships in 8 Business Days
$ 9.99 USD
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$ 9.99 USD
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Plastigage Set
Plastigage Set
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CTA Tools - Corporate Logo
T#:640925
Part#: CTA2450
In Stock
$ 9.27 USD
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$ 9.27 USD
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Plastigage Set is an essential tool for accurately measuring the clearances of engine rod and main bearings without the need for expensive micrometers. This set is ideal for ensuring proper engine assembly by helping you choose the correct size replacement bearing inserts. Designed to cover all automotive engines, the Plastigage Set provides precise measurements to maintain optimal engine performance.

  • Accurate Measurements: Measures clearances of engine rod and main bearings, ensuring proper fitment.
  • Cost-Effective: Eliminates the need for expensive micrometers, offering a budget-friendly solution.
  • Universal Application: Suitable for all automotive engines, making it versatile for various applications.
  • Complete Set: Includes sizes .001" - .003" (green) and .002" - .006" (red) to cover a wide range of measurements.
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VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6)
VW-Audi 7mm Exhaust Valve stem seal / Viton (SET OF 6)
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Supertech - Corporate Logo
T#:35795475
Part#: VS-VW7E-6
Ships in 5 Business Days
$ 7.99 USD
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$ 7.99 USD
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Genuine BMW Stud Bolt - 07129908134 - E30,E34
Genuine BMW Stud Bolt - 07129908134 - E30,E34
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Genuine BMW - Corporate Logo
T#:19606
Part#: 07129908134
Ships in 2 Business Days
$ 5.99

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

$ 4.00 USD
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$ 4.00 USD
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Genuine BMW Stud Bolt -
This item fits the following BMW Chassis:
E30,E34

Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30, E34
Victor Reinz O-Ring - Distributor Drive And Cam Cover - E24, E28, E30...
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Victor Reinz - Corporate Logo
T#:597166
Part#: 12111252257
Ships in 1 Business Day
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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Seals the cover plate to the cylinder head
Valve collet - priced each
Valve collet - priced each
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Genuine BMW - Corporate Logo
T#:360642
Part#: 11341307136
In Stock
$ 1.99 USD
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$ 1.99 USD
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ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size)
ARP Ultra-Torque Fastener Assembly Lubricant (Select Your Size) ...
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ARP - Corporate Logo
T#:338571
Part#: TMS1733
In Stock
Starting at $ 1.99 USD
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Starting at $ 1.99 USD
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If you are using a premium fastener, such as the ARP brand rod bolts, head bolts, or main bolts, then you will want this assembly lube. Made to be used to precisely duplicate all ARP fastener preload specifications.
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Supertech 7mm Intake Valve Stem Seal - Polyacrylic - BMW S14 S38
Supertech 7mm Intake Valve Stem Seal - Polyacrylic - BMW S14 S38 ...
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Supertech - Corporate Logo
T#:641013
Part#: VS-VW7I
Ships in 4 Business Days
$ 0.99 USD
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$ 0.99 USD
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Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 9.8mm/.385" Seal OD: 13.2mm/.520"
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