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

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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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King Performance BMW S54 Main Bearings - Std.
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King - Corporate Logo
T#:25706115
Part#: MB7039AM
In Stock
$ 169.99 USD
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Performance Rod Bearing Set - Standard Size
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King - Corporate Logo
T#:4840520
Part#: CR6640XP
In Stock at Vendor
$ 163.99

This product was last offered at the strikethrough price on
05-22-2026

$ 148.99 USD
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$ 148.99 USD
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These King Performance Series bearings are recommended for performance applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE or upgraded crankshafts. These King Performance Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. The bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.
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King Performance BMW M50 Rod Bearings - Std.
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King - Corporate Logo
T#:25706122
Part#: CR6640SM
In Stock
$ 178.99 USD
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Cat Cams Upraded Camshafts - 268/268 - 230/230 - 10.45mm/10.45mm - 1....
For non-TU M52B28 (Single VANOS)
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Cat Cams - Corporate Logo
T#:28271168
Part#: 1304214
Ships on Aug 19, 2026
$ 1,524.99 USD
Free Shipping on orders $49 and up
$ 1,524.99 USD
Free Shipping on orders $49 and up

Cat Cams Camshaft Set - 288/280 12.75mm/12.50mm Lift - E46 M3 With R...
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Cat Cams - Corporate Logo
T#:4414885
Part#: 1301805KIT
In Stock
$ 4,372.99 USD
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$ 4,372.99 USD
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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*
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King BMW S54B32 3.2L Coated Performance Rod Bearing Set
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King - Corporate Logo
T#:16707423
Part#: CR6877XP
In Stock at Vendor
$ 300.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Complete Set of Bearing Shells
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King Performance BMW S54 Main Bearings - .25 Oversize
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King - Corporate Logo
T#:25706120
Part#: MB7039AM0.25
Ships in 6 Business Days
$ 178.99 USD
Free Shipping on orders $49 and up
Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!
Cat Cams M52B28 Hot Street Camshaft Set
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Cat Cams - Corporate Logo
T#:5858417
Part#: 1304213
Special Order: No Guaranteed ETA
$ 1,524.99 USD
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$ 1,524.99 USD
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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°
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Cat cams Sport camshaft set 263/256 11.00mm/10.50mm - Z3 1.9 E36 318i...
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Cat Cams - Corporate Logo
T#:578599
Part#: 1301712
Special Order: No Guaranteed ETA
$ 1,170.00 USD
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$ 1,170.00 USD
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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.

KING Performance Rod Bearings - M40/M42/M43/M44
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King - Corporate Logo
T#:4538204
Part#: CR4042XP
In Stock at Vendor
$ 98.99 USD
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$ 98.99 USD
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King Racing’s XP series features pMax Black™, a unique tri-metal structure that is 24% harder than any other conventional tri-metal race bearing. pMax Black™ together with the XP geometric features are the ideal combination for performance racing.
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King Performance BMW S54 Rod Bearings - Set - .025
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:25706111
Part#: CR6877XP0.25
Ships in 1 Business Day
$ 300.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a tri-metal base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Complete Set of Bearing Shells - .025 Oversize
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Cat Cams M52B28 Sport Camshaft Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Cat Cams - Corporate Logo
T#:25805790
Part#: 1304212
Special Order: No Guaranteed ETA
$ 1,524.99 USD
Free Shipping on orders $49 and up
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°
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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
Cat Cams - Corporate Logo
T#:578598
Part#: 1301711
Special Order: No Guaranteed ETA
$ 1,170.00 USD
Free Shipping
$ 1,170.00 USD
Free Shipping
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
Cat Cams - Corporate Logo
T#:25805789
Part#: 1304211
Special Order: No Guaranteed ETA
$ 1,524.99 USD
Free Shipping on orders $49 and up
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°
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