VolvoEngine Parts

20459838 — 1 Set Cylinder Head Bolt Voe20459838 For Volvo D4D D4E D5D D6D D6E Engine Ec160B Ec180C Ec210C Ec220D Bl70 Bl71 L45G L50G L50H L60G

This set of cylinder head bolts is engineered to securely fasten the cylinder head to the engine block, maintaining a critical seal for the combustion chamber and preventing leaks of coolant and oil. Manufactured to meet stringent OEM specifications, these bolts provide the necessary clamping force and tensile strength, unlike worn or stretched bolts that can compromise head gasket integrity. Operators may notice coolant leaks into the oil, oil leaks externally, or a loss of engine compression, indicated by rough running or white exhaust smoke, when these bolts fail to maintain proper torque.

1 Set Cylinder Head Bolt Voe20459838 For Volvo D4D D4E D5D D6D D6E Engine Ec160B Ec180C Ec210C Ec220D Bl70 Bl71 L45G L50G L50H L60G – Part No 20459838 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeCylinder Head Bolt Set
MaterialHigh-strength Steel Alloy
ApplicationEngine Cylinder Head to Block Mounting
Service LifeReplace during cylinder head service or engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failing cylinder head bolts may include minor coolant or oil leaks around the cylinder head mating surface. If ignored, these leaks can worsen, leading to significant fluid loss, potential overheating, or oil contamination of the coolant. Continued operation risks severe engine damage due to loss of compression and compromised sealing.

Installation Tip

Always use a calibrated torque wrench and follow the manufacturer's specified tightening sequence and torque values. Never reuse old cylinder head bolts, as they can stretch and lose their clamping force.

Service Note

Always replace the cylinder head gasket when replacing cylinder head bolts.