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Guaranteed Fitment
Always the correct part
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In-House Experts
We know our products
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Added Value
Mounting, Balancing
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Fast Delivery
Estimated delivery: 7–15 business days
Product Overview: This cylinder head assembly is manufactured for Volkswagen CDBA CDCA CKTB CKTC CKUB CKUC CNFA CNFB CNEA CSHA engines and supplied ready for installation as a direct replacement unit. It is supplied fully assembled with valves, guides and seats installed, so a cracked, warped or valve-damaged original head can be replaced without additional machining work.
Key Features: The head is machined on CNC centres for correct deck flatness, precise valve seat angles and matched combustion chamber volumes. Guides and seats are fitted and honed so sealing is even and compression is balanced across all cylinders, giving a stable idle. Each head is pressure tested before dispatch to verify that no porosity or coolant leakage is present. Internal coolant galleries follow the original casting layout so heat is removed evenly from all cylinders.
Vehicle Compatibility: It fits Volkswagen models including A3 Sportback (8PA), A3 (8P1), GOLF VI (5K1), GOLF VI Variant (AJ5), BEETLE Convertible (5C7 and 5C8). Fitment is documented for the 2003-2012, 2004-2013 and 2010- model years. The same engine family was produced in more than one revision, so verify the engine code and original part number against the removed component before ordering.
Specifications: Key specifications: engine code CDBA CDCA CKTB CKTC CKUB CKUC CNFA CNFB CNEA CSHA; material high-grade alloy; size STD; condition New; warranty 12 Months. It is supplied for replacement and repair applications in standard specification.
OEM / Reference Numbers: Reference numbers for this part include 03L103265EX, 03L103351G, 03L103351Q, 03L103065A, 03L103265HX, 03L103351N, 03L103265E, 03L103351C and 03L103351P.
Applications: Uses include head gasket repairs, valve and seat damage repair, engine rebuilds and scheduled fleet maintenance. It also suits preventative maintenance programmes where a failed unit is replaced before secondary damage occurs.
Benefits / Replacement Information: Installing a new head assembly restores lost compression, corrects coolant loss and combustion leakage caused by cracking or distortion, and returns the engine to reliable service. The pre-assembled, pre-machined format avoids the labour and uncertainty of welding, skimming and re-seating an original head. It offers dealer-equivalent dimensions and sealing surfaces at a more economical price.
Installation or Fitment Notes: Prior to assembly, verify the part number and engine code, and check the block deck and head bolt threads for condition. Fit a new gasket and, where required, new torque-to-yield bolts, ensuring the bolt holes are clean and free of fluid. Where applicable, verify valve-to-piston clearance and set camshaft timing precisely to the factory marks. Cleanliness during assembly is critical; keep machined surfaces free of swarf, grit and moisture at all times.