What are the design features and benefits of the cooling passages in the cylinder head on 2006 BMW X5?

The cooling passages on the M54 cylinder head are such that the head is cooled separately, at temperatures lower than that of the cylinder block. The cylinder head is made of aluminum and there is the incorporation of double overhead camshafts, and the engines have four valves per cylinder with crossflow. The intake valve is on one of the sides of the combustion chamber, while the exhaust valve is on the other, spark plugs are in the center of the cylinder head.

Genuine 2006 BMW X5 Cylinder Head

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5 Cylinder Heads found

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2006 BMW X5 Bearing Ledges Cylinder Head
Part Number: 11127514543
$2946.51 MSRP: $2958.70
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Product Specifications
- Other Name: Cylinder Head With Bearing Ledges; Cylinder Head
- Replaces: 11-12-7-514-540, 11-12-1-436-790, 11-12-1-439-724
- Item Weight: 36.30 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 11127514543
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
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Fits the following 2006 BMW X5 Submodels:
- 3.0i(E53)
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2006 BMW X5 Valve Gear Cylinder Head
Part Number: 11121556429
$5870.95 MSRP: $7450.41
You Save: $1579.46 (22%)
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Product Specifications
- Other Name: Cylinder Head With Valve Gear; Cylinder Head
- Item Weight: 37.00 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 11121556429
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2006 BMW X5 Submodels:
- 4.8is(E53)
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2006 BMW X5 Left Cylinder Head Complete
Part Number: 11121556513
$1795.04 MSRP: $2089.85
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Product Specifications
- Other Name: Cylinder Head With Valve Gear; Cylinder Head
- Position: Driver Side
- Item Weight: 36.30 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 11121556513
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
More Info
Fits the following 2006 BMW X5 Submodels:
- 4.4i(E53)
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2006 BMW X5 Valve Gear Cylinder Head
Part Number: 11121556512
$1795.04 MSRP: $2089.85
You Save: $294.81 (15%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder Head With Valve Gear; Cylinder Head
- Item Weight: 35.00 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 11121556512
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2006 BMW X5 Submodels:
- 4.4i(E53)
View related parts
2006 BMW X5 Valve Gear Cylinder Head
Part Number: 11121556428
$1795.04 MSRP: $2089.85
You Save: $294.81 (15%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder Head With Valve Gear; Cylinder Head
- Item Weight: 37.00 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 11121556428
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following 2006 BMW X5 Submodels:
- 4.8is(E53)

2006 BMW X5 Cylinder Head

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2006 BMW X5 Cylinder Head Parts Questions & Experts Answers

Q:
What are the design features and benefits of the cooling passages in the cylinder head on 2006 BMW X5?
Posted by Guillermo D.
A:
The cooling passages on the M54 cylinder head are such that the head is cooled separately, at temperatures lower than that of the cylinder block. The cylinder head is made of aluminum and there is the incorporation of double overhead camshafts, and the engines have four valves per cylinder with crossflow. The intake valve is on one of the sides of the combustion chamber, while the exhaust valve is on the other, spark plugs are in the center of the cylinder head.
Answered by BMW Parts Specialist Tony / Aug 21, 2025