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Ajusa 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.

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Ajusa Hydraulic Lifter - 11321748884 - E36, E46, E34, E39, E60, E83, ...

T#:363428

Part#: 11321748884

Ships in 4 Business Days

$ 34.99 USD

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$ 34.99 USD

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Also commonly called cam follower

Ajusa Cylinder Head Bolts Set - BMW N54 3.0L

T#:385030

Part#: 11127574303

Ships in 1 day

$ 78.99 USD

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$ 78.99 USD

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One time use torque-to-yield cylinder head bolts. Always replace as a set whenever the cylinder head is removed and reinstalled.

Ajusa Hydraulic Lifter - 11321739299 - E36, E34 525i

T#:379581

Part#: 11321739299

In Stock

Sale - Save 17% $ 29.99

This product was last offered at the strikethrough price on
11-07-2026

$ 24.91 USD

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Sale - Save 17%

$ 29.99

This product was last offered at the strikethrough price on
11-07-2026

$ 24.91 USD

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Ajusa hydraulic valve lifter for the M42 and M50 engines. These lifter buckets can last 150,000+ miles but then they no longer fit on the valve stem correctly and a ticking or knocking noise can result. If the lifter is no longer seated correctly, it can lead to the valve not opening correctly. Replacement is straight-forward but requires special tools for working with the M50 camshafts. This item fits the following BMWs: 1992-1995 E36 BMW 318i 318is 318ti 318ic 325i 325is 325ic 1993-1994 E34 BMW 525i

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Ajusa Cylinder Head Bolt Set - 11121726478 - E30, E36 325i, E34 525i ...

T#:1195775

Part#: 11121726478

Ships in 3 Business Days

$ 65.99 USD

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$ 65.99 USD

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A complete set of 14 cylinder head bolts

Ajusa Cylinder Head Bolt - Set - 11127831862 - E46 M3

T#:379585

Part#: 11127831862

In Stock at Vendor

$ 23.99 USD

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$ 23.99 USD

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Ajusa Rocker Arm - Outer - 11337522124

T#:26404911

Part#: 11337522124

In Stock

$ 79.99

This product was last offered at the strikethrough price on
11-07-2026

$ 67.99 USD

Limited Qty Sale

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$ 79.99

This product was last offered at the strikethrough price on
11-07-2026

$ 67.99 USD

Limited Qty Sale

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Upgrade your Mini's engine performance with this essential component that efficiently transfers rotational force into linear force to open valves. Designed for durability and reliability, this outer component ensures optimal engine operation for your Mini.

Enhances engine performance and efficiency
Converts rotational force into linear force for valve operation
Durable and reliable construction for long-lasting use
Compatible with various Mini models

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Cylinder Head Bolt - M10 1.8L - Set Of 10 - (NO LONGER AVAILABLE) ...

T#:379589

Part#: 11120621144

Back Ordered

$ 68.99 USD

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$ 68.99 USD

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Ajusa N52 Eccentric Shaft Actuator Gasket - 11377516302 - E9x, E60, E...

T#:180908

Part#: 11377516302

Back Ordered

$ 10.99 USD

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$ 10.99 USD

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The Valvetronic actuator unit sits on top of the cylinder head and seals against the valve cover. The gasket plate should be replaced any time the Valvetronic unit is removed or when work is done on top of the engine (valve cover gaskets, spark plugs, ignition coils, etc).

This item fits the following BMWs:
2006 E90 BMW 325i 325xi 330i 330xi - Sedan
2006 E91 BMW 325xi - Wagon
2006 E60 BMW 525i 525xi 530i 530xi
2006-10/2006 E85 BMW Z4 3.0i Z4 3.0si

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Ajusa Cylinder Head Bolt - 07131487226

T#:38587668

Part#: 07131487226

Ships in 3 Business Days

$ 69.99 USD

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$ 69.99 USD

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Ajusa Rocker Arm - Inlet Left - 11337514978

T#:31125667

Part#: 11337514978

Special Order: No Guaranteed ETA

$ 51.99 USD

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$ 51.99 USD

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Cylinder Head Bolt Set - M52TU M54

T#:639969

Part#: 11121740065

Ships in 3 Business Days

$ 21.99 USD

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$ 21.99 USD

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Head Bolt set for M52TU and M54 engines with aluminum block. This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi 1997-2003 E39 BMW 525i 528i 530i 2004-2005 E60 BMW 525i 525xi 530i 530xi 2004-2005 E83 BMW X3 2.5i X3 3.0i 2000-2006 E53 BMW X5 3.0i 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2003-2005 E85 BMW Z4 2.5i Z4 3.0i

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Ajusa Rocker Arm - Inlet Right - 11337514977

T#:31125668

Part#: 11337514977

Ships on Nov 30, 2026

$ 37.99 USD

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$ 37.99 USD

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Internal Engine
- Camshafts (1)
- Cylinder Head (11)

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