How much work is involved in replacing a block?

This is one of the most labor-intensive engine repairs — essentially rebuilding the engine, since every internal and bolt-on component transfers to the new block.

Is it worth repairing an engine with a cracked block, or better to replace the whole engine?

For older or high-mileage vehicles it’s often more economical to source a complete replacement engine rather than rebuild around a damaged block.

What material are engine blocks made of?

Cast iron or aluminium alloy, depending on the engine design.

How do I check whether Engine cylinder block VW GOLF 5 2004 fits my vehicle?

Compare OEM reference 03C103019 BAG 068423, the listed vehicle (VW GOLF 2003-2009), connectors, mounting points and the photographs for this exact item.

What is the condition of Engine cylinder block VW GOLF 5 2004?

Listed condition: Used. Current availability: 1 in stock - ready to ship. Review the item photographs and any stated defects as well.

How is Engine cylinder block VW GOLF 5 2004 delivered and returned?

Available delivery methods, timing and price for your country are shown in the cart. Review the applicable 14-day return terms before ordering.

Engine cylinder block VW GOLF 5 2004

Name: Engine cylinder block VW GOLF 5 2004
Brand: VW
SKU: 03C103019 BAG 068423
Price: 45.00 EUR
Availability: InStock

OEM: 03C103019 BAG 068423

Disassembled car photo

Engine running

Tested before shipping
Guaranteed quality
Fast delivery 3–7 days
14-day returns

Details for this exact part

Code: 03C103019 BAG 068423
OEM: 03C103019 BAG 068423
Condition: Used
Availability: 1 in stock - ready to ship
Make, model: VW GOLF 2003-2009
Year: 2004
Engine: Petrol 1.6 85KW BAG
VIN: WVWZZZ1KZ4W101305

What is this part and why does it matter?

The engine block (cylinder block) is the core structure of the engine, housing the cylinders, crankshaft, and the main oil and coolant galleries.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

Visible cracks or coolant/oil seeping from the block itself
Persistent overheating with no other identifiable cause
Knocking noise from deep inside the engine

Installation information

Replacement is a major engine rebuild — requires transferring the crankshaft, pistons, and all bolt-on components from the old block, and is best left to an experienced engine shop.

Frequently asked questions

In some cases minor cracks can be sleeved or welded by a specialist, but a cracked block is often a sign the engine needs a full rebuild or replacement.

Donor vehicle description

VIN: WVWZZZ1KZ4W101305
Make, model: VW GOLF 5
Year: 2004
Engine: Petrol 1.6 85KW BAG
Transmission: Manual 6-speed GVV(6S)
Drive: Front
Colour: Z4Z4

302 parts from this car

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