Find Parts That Fit Your Vehicle

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.

Sub-Categories

Sort By:

Ferrea Performance Intake Valve - Stock Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:583445
Part#: F1550P
Back Ordered
$ 34.99 USD
Free Shipping on orders $49 and up
Ferrea Performance Exhaust Valve - Stock Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:583444
Part#: F1552P
In Stock
$ 34.99 USD
Free Shipping on orders $49 and up
CTA Tools BMW Flywheel Holder - N20/N26 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:584148
Part#: CTA2801
In Stock
$ 80.57 USD
Free Shipping
$ 80.57 USD
Free Shipping
Used for securing the crankshaft with the transmission installed(connected to engine)

CTA Tools N63/S63 Crankshaft Holder
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:587213
Part#: CTA2893X05
Ships on Jul 28, 2026
$ 72.04 USD
Free Shipping on orders $49 and up
If you have to remove your harmonic balancer pulley, you must secure your crankshaft. This is the exact tool you need Loosens central crankshaft bolt on N63 & S63 engines Services various 2008-2013 BMW Basic Instructions for use: Removal: Remove the engine drive belt. Use the Crankshaft Pulley Holder, to prevent the crankshaft from rotating while loosening the crankshaft balancer bolt. Remove the crankshaft balancer bolt. Discard the bolt. Remove the crankshaft balancer. Install: Install the crankshaft balancer. Install a NEW crankshaft balancer bolt. Use the Crankshaft Pulley Holder to prevent the crankshaft from rotating while tightening the crankshaft balancer bolt. Tighten the bolt to Manufacturer recommended ft. lbs. Install the engine drive belt.
Show More Show Less

E36 325, 328 M3 Ferrea Spring Seat Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:163
Part#: SL1021-24
Back Ordered
$ 118.80 USD
Free Shipping
$ 118.80 USD
Free Shipping
E36 325, 328 M3 Ferrea Spring Seat Set includes 24 seats. MUST be uses with the Ferrea valve springs. Recommended to be used with the Ferrea Competition Plus Big Valves and Ferrea Titanium Retainers. See links below.

The goal at Ferrea is to create the finest valves and bearings money can buy. With a staggering array of applications for virtually every production engine in existence both gas and diesel Ferrea has the parts you need to finish your next engine project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
Show More Show Less
E36 325, 328 & M3 Ferrea High Performance Valve Spring Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:439
Part#: S10049-24
Back Ordered
$ 817.20 USD
Free Shipping
$ 817.20 USD
Free Shipping

Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicone steel These springs are manufactured with state-of-the-art equipment. Ferrea springs are heat-treated and stress-relieved, which dramatically increases the spring's life. Strict quality control procedures and cycle testing ensures consistency from batch to batch. Ferrea valve springs provide the stability needed for high lift, high rpm racing and street car engines. Kit includes a set of 24 springs. MUST be used with the Ferrea Spring Seat and Titanium Retainers. See links below. 

https://www.turnermotorsport.com/e/p-163-e36-325-328-m3-ferrea-spring-seat-set/ 

https://www.turnermotorsport.com/e/p-31-e36-325-328-m3-ferrea-titanium-retainer-set/



This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i

Show More Show Less

E36 325, 328 M3 Ferrea Titanium Retainer Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:31
Part#: E11025-24
Back Ordered
$ 7,199.76 USD
Free Shipping
$ 7,199.76 USD
Free Shipping
E36 325, 328 M3 Ferrea Titanium Retainer Set - set of 24. Recommended to be used with the Ferrea Competition Plus Big Valves. MUST be used with the Ferrea high-performance valve spring and seat kit. See links below.

The goal at Ferrea is to create the finest valves and bearings money can buy. With a staggering array of applications for virtually every production engine in existence both gas and diesel, Ferrea has the parts you need to finish your next engine project with confidence.

This item fits the following BMWs:
1992-1998 E36 BMW 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i
Show More Show Less
Plastigage Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640925
Part#: CTA2450
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up

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.
Show More Show Less

Ferrea High Performance Valve Kit - B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:29035337
Part#: FER-HPVK-B58-T29
Ships in 3 Business Days
$ 929.00 USD
Free Shipping on orders $49 and up
The BMW B58 engine can significantly benefit from the high-performance Ferrea valve kit, featuring the renowned Ferrea Competition Plus Valves. Known as the industry’s most dependable extreme-duty valves, these valves are crafted using special aerospace-grade alloys, including the high tensile strength EV8-Z18. To ensure unparalleled quality, an exclusive two-step slow forging process is utilized, promoting optimal grain flow and minimizing material structure damage. Additionally, the valves undergo a rigorous 48-hour heat treatment and stress-relieving process, crucial for maintaining their molecular integrity. The final touch is the application of avionics-quality hard chrome and a specially hardened tip, ensuring exceptional durability and reliability.
Show More Show Less

Ferrea High Performance Valve Kit - B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Ferrea - Corporate Logo
T#:29035336
Part#: FER-HPVK-B58-T28
Ships in 3 Business Days
$ 1,059.99 USD
Free Shipping on orders $49 and up
The BMW B58 engine can significantly benefit from the high-performance Ferrea valve kit, featuring the renowned Ferrea Competition Plus Valves. Known as the industry’s most dependable extreme-duty valves, these valves are crafted using special aerospace-grade alloys, including the high tensile strength EV8-Z18. To ensure unparalleled quality, an exclusive two-step slow forging process is utilized, promoting optimal grain flow and minimizing material structure damage. Additionally, the valves undergo a rigorous 48-hour heat treatment and stress-relieving process, crucial for maintaining their molecular integrity. The final touch is the application of avionics-quality hard chrome and a specially hardened tip, ensuring exceptional durability and reliability.
Show More Show Less
E12 Torx BMW Head Bolt Socket
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640255
Part#: CTA9259
Ships on Jul 28, 2026
$ 14.27 USD
Free Shipping on orders $49 and up
Used for cylinder head bolts on BMW M42 and M50 engines. 1/2" square drive with 6" (15cm) shaft
BMW Crankshaft Front Oil Seal Installer - B37, B47, B48, B57, B58, N4...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640831
Part#: CTA3881
Ships on Jul 28, 2026
$ 141.41 USD
Free Shipping
$ 141.41 USD
Free Shipping
Replaces front crankshaft seal on BMW B37, B47, B48, B57, B58, N47 & N57 engines Features: Compare to BMW Factory Tool 118 800 Components: 3881X01 – Press Sleeve, 3881X02 – Guide Tool, 3881X03 – Nut & 3881X04 – Screws Visit ctatools.com for product instructions
Show More Show Less


BMW Crankshaft Rear Oil Seal Installer - B37, B47, B48, B57, B58, N47...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CTA Tools - Corporate Logo
T#:640832
Part#: CTA3882
Ships on Jul 28, 2026
$ 246.91 USD
Free Shipping on orders $49 and up
Replaces the rear crankshaft seal on BMW B37, B47, B48, B57, B58, N47 & N57 engines Features: Compare to BMW Factory Tool 118 810, 118 811, 118 812, 118 813 & 118 815 Components: 3882X01 – Guide Tool, 3882X02 – Press Tool, 3882X03 – Press Tool Screws, 3882X04 – Press Cup & 3882X05 – Nut w/ Thrust Bearing Visit ctatools.com for product instructions
Show More Show Less