Home
Engine Parts
Internal Engine

BMW Internal Engine Parts for BMW Z3 (1996-2002)

Clear BMW chassis

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:

Oil Pump Chain - E36 E46 E34 E39 Z3 Z4

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:14529

Part#: 11417576915

In Stock

$ 45.89 USD

Add to Wish List

Qty

$ 45.89 USD

Add to Wish List

This is an OEM oil pump chain for BMW's with the M50/M52/M54/S50/S52 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2005 E83 BMW X3 2.5i X3 3.0i
1996-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1998-2000 Z3 BMW M Roadster M Coupe
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

Show More Show Less

Oil Pump Chain - E46 M3, Z3M Z4M with S54 engine

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:34869

Part#: 11411401399

In Stock

$ 30.99

This product was last offered at the strikethrough price on
06-19-2026

$ 29.99 USD

Add to Wish List

Qty

$ 29.99 USD

Add to Wish List

This is an OEM oil pump chain for BMW's with the S54 6 cylinder engine. We recommend replacing the oil pump chain any time you remove the oil pump from the car.

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

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

Show More Show Less

OEM IWIS Lower Timing Chain - E36, E46, E39, Z3 E60

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:362220

Part#: 11311432176

In Stock

$ 83.99

This product was last offered at the strikethrough price on
06-08-2026

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair, but ultimately improve the way your engine runs.

Cat Cams Upraded Camshafts - 268/268 - 230/230 - 10.45mm/10.45mm - 1....

For non-TU M52B28 (Single VANOS)

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:28271168

Part#: 1304214

Ships on Aug 18, 2026

$ 1,524.99 USD

Add to Wish List

Qty

$ 1,524.99 USD

Add to Wish List

Cat Cams Camshaft Set - 288/280 12.75mm/12.50mm Lift - E46 M3 With R...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:4414885

Part#: 1301805KIT

In Stock

$ 4,372.99 USD

Add to Wish List

Qty

$ 4,372.99 USD

Add to Wish List

Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is. The included rocker arm kit consist of: - 24x "CAT031" rocker arm, steel billet, coated - 1x oil connector bridge - rocker arms with 0.5mm oil jet hole towards the cam/follower contact area - rocker arm shafts need to be drilled at each rocker arm (in the groove already present) - rocker arm shafts need to be drilled at oil bridge connector (no need to make extra groove, connector has internal groove) - intake rocker arm shaft needs front plug to close - intake rocker arm shaft has no oil feed so an oil bridge is required to connect the intake/exhaust rocker arm shafts *Please note that the factory cams ave a pressure regulator valve that needs to be removed and installed in the new cams*

Show More Show Less

Timing Chain - Upper

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:362341

Part#: 11311432177

Ships in 3 Business Days

$ 39.68 USD

Add to Wish List

Qty

$ 39.68 USD

Add to Wish List

This is the upper timing chain that connects the 2 camshaft sprockets on cars with the M50, M52, M54, S50 or S52 engines. If you need the lower timing chain that connects the crankshaft to the upper sprocket you can find it Here .

IWIS is a leader in complex engine parts. Using advanced techniques in research and design allows IWIS to offer parts that not only repair but ultimately improve the way your engine runs.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 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 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1997-2000 Z3 BMW Z3 M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i

Show More Show Less

Cat Cams M52B28 Hot Street Camshaft Set

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:5858417

Part#: 1304213

Special Order: No Guaranteed ETA

$ 1,524.99 USD

Add to Wish List

Qty

$ 1,524.99 USD

Add to Wish List

Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 257° Exhaust @ .1mm: 257° Intake @ 1mm: 220° Exhaust @ 1mm: 220° Lift Intake: 10.15mm Exhaust: 10.15mm Lobe Angle Intake: 110° Exhaust: 105°

Show More Show Less

Cat cams Sport camshaft set 263/256 11.00mm/10.50mm - Z3 1.9 E36 318i...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:578599

Part#: 1301712

Special Order: No Guaranteed ETA

$ 1,170.00 USD

Add to Wish List

Qty

$ 1,170.00 USD

Add to Wish List

Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat Cams M52B28 Sport Camshaft Set

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:25805790

Part#: 1304212

Special Order: No Guaranteed ETA

$ 1,524.99 USD

Add to Wish List

Qty

$ 1,524.99 USD

Add to Wish List

Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 250° Exhaust @ .1mm: 250° Intake @ 1mm: 213° Exhaust @ 1mm: 213° Lift Intake: 9.55mm Exhaust: 9.55mm Lobe Angle Intake: 110° Exhaust: 105°

Show More Show Less

Cat Cams M52B28 Sport Camshaft Set

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:25805789

Part#: 1304211

Special Order: No Guaranteed ETA

$ 1,524.99 USD

Add to Wish List

Qty

$ 1,524.99 USD

Add to Wish List

Upgrade your M52B28 Engine with Cat Cams, a leader in the performance-aftermarket camshaft industry. These Camshafts will increase airflow into the engine by increasing the overall lift and duration over the factory cams. With their Sport cam setup, you can run all factory valvetrain, with no valve spring upgrades necessary! The VANOS (VVT) system on the intake camshaft changes the valve timing: M52 /B28: from 115° to 90° (exhaust: 105° fix) The data are shown for full intake retard (disengaged VVT). Check the distance between valves and piston to be 1mm at least with VVT engaged. Wrong installation will cause severe engine damage! Duration Intake @ .1mm: 240° Exhaust @ .1mm: 240° Intake @ 1mm: 203° Exhaust @ 1mm: 203° Lift Intake: 9.25mm Exhaust: 9.25mm Lobe Angle Intake: 110° Exhaust: 105°

Show More Show Less

Sport camshaft set 255/248 10.50mm/10.00mm - Z3 1.9 E36 318i ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:578598

Part#: 1301711

Special Order: No Guaranteed ETA

$ 1,170.00 USD

Add to Wish List

Qty

$ 1,170.00 USD

Add to Wish List

Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Select Vehicle

Purpose

Category

Internal Engine
- Bearings (1)
- Camshafts (6)

Brand

View All Brands

Price

Shipping