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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Genuine BMW - Corporate Logo
T#:16410
Part#: 83300490942
Ships in 1-2 days
$ 38.99 USD
Free Shipping on orders $49 and up
GENUINE BMW TEMPLATE
Genuine BMW - Corporate Logo
T#:22231
Part#: 11241310517
In Stock
Sale - Save 8% $ 70.99

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

$ 65.31 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 70.99

This product was last offered at the strikethrough price on
08-26-2026

$ 65.31 USD
Free Shipping on orders $49 and up


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 - Corporate Logo
T#:393128
Part#: 11241310515
Ships in 1-2 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
Free Shipping
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
Free Shipping

Genuine BMW - Corporate Logo
T#:12915
Part#: 11210666100
Ships in 3 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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up
GUIDE-BEARING SHELL RED:H11240


Fits BMW Engines including:
M10,S14


Genuine BMW - Corporate Logo
T#:281
Part#: 11341315912
In Stock
Sale - Save 25% $ 39.85

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

$ 29.89 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 39.85

This product was last offered at the strikethrough price on
07-15-2026

$ 29.89 USD
Free Shipping on orders $49 and up

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 - Corporate Logo
T#:182
Part#: 11211308467
Ships in 3 Business Days
3% off MSRP $ 197.99

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

$ 192.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 197.99

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

$ 192.99 USD
Free Shipping on orders $49 and up
E30 M3 Crank Gear. Typically replaced when it is worn due to timing chain slop. We recommend changing this when performing an engine rebuild.

Genuine BMW - Corporate Logo
T#:283
Part#: TMS283
Ships in 1-2 days
$ 259.99 USD
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$ 259.99 USD
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The E30 M3 Head Bolt Set includes 10 head bolts.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Genuine BMW - Corporate Logo
T#:284
Part#: 11241307140KIT
Ships in 3 Business Days
$ 159.92 USD
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$ 159.92 USD
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The E30 M3 Rod Bolt Set includes 8 bolts.

Supertech - Corporate Logo
T#:641031
Part#: VS-VW7-S14KT
Ships in 8 Business Days
$ 33.99 USD
Free Shipping on orders $49 and up
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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Genuine BMW - Corporate Logo
T#:19606
Part#: 07129908134
Ships in 1-2 days
$ 4.00 USD
Free Shipping on orders $49 and up


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

Genuine BMW - Corporate Logo
T#:22167
Part#: 11121312096
Ships in 1-2 days
$ 10.99 USD
Free Shipping on orders $49 and up


Genuine BMW Stud Bolt - M6X35
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
S14,S38



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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up


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

Supertech - Corporate Logo
T#:641013
Part#: VS-VW7I
Ships in 4 Business Days
$ 0.99 USD
Free Shipping on orders $49 and up
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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Genuine BMW - Corporate Logo
T#:367629
Part#: 11341309343
Ships in 6 Business Days
3% off MSRP $ 159.99

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

$ 155.99 USD
Free Shipping
3% off MSRP
$ 159.99

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

$ 155.99 USD
Free Shipping


Genuine BMW - Corporate Logo
T#:34345
Part#: 11341308158
Back Ordered
$ 131.99 USD
Free Shipping
$ 131.99 USD
Free Shipping


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

Fits BMW Engines including:
S14,S38