Head gasket suitable for JCB TLT, ROBOT - HR engine
Part number: 02/630675
Alternative numbers: 02/634209 / 02/634237 / 02/634132 / 02/634131
Type: Cylinder head gasket
Cylinder diameter: 86 mm
Thickness: 0.6 mm
Application: JCB TLT, ROBOT – HR Engine, Perkins 100 and 400 series engines, also used in CAT, Gehl, and other machines.
The head gasket is a critical component in the top-end engine rebuild. It ensures combustion chamber sealing, separates engine oil from coolant, and maintains proper cylinder compression. When replacing the gasket, head bolts must always be replaced with new ones, and it is recommended to also inspect valve cover gaskets, valve stem seals, and check the cylinder head for possible resurfacing.
Failure Diagnostics
⚠️ Safety Warning
A damaged or blown cylinder head gasket can lead to serious engine failure. It may cause oil and coolant mixing, combustion gases entering the cooling system, or compression loss. Ignoring these symptoms can result in engine seizure or cracked head/block, causing very costly repairs.
Application in machinery
|
Brand
|
Series / Model / Engine Type
|
|
JCB |
Backhoe Loaders (1CX, 3CX, 4CX, MIDI CX), Mini Excavators (e.g., 8052, 8000 Series), Forklifts (TLT Series, e.g., TLT 35 D), ROBOT, TELETRUK |
|
Caterpillar |
Models: 257B, 304.5, CB334E, M315C, 432E. Engines: 3024C, 404C-22T |
|
Perkins |
100 Series (KR - 104-22, KRC, KRG). 400 Series (GN - 404D-22, HP - 404C-22, HR - 404C-22T, HPC, HRC) |
|
Gehl |
GEHLMAX KL 278 (Engine 404.C22) |
|
Atlas |
AB04 Series, 804 M |
|
Wacker - Neuson |
WL Series (WL 30, WL 36) |
|
Weidemann |
1000 Series (1090 D/P, 1370 P48, 1904 D/P), 2000 Series (2002 D/P, 2006 P50), 3000 Series (3002 D/P, 3006 P50, 3110 D/P), 1350 CX45, 1370 CX50, 1770 CX50, 2070 CX50 |
|
Steinbock |
CD/CL Series (16 C/H, 20 C/H) |
|
Zeppelin |
ZK Series (ZK32B), ZM (4), ZR (4) |
The list above is for reference. It is crucial to verify the engine type (e.g., Perkins 404C-22T) and bore (86 mm).
Data sheet
Specific References
Manufacturer
Responsible person






The head gasket is a critical component in the top-end engine rebuild. It ensures combustion chamber sealing, separates engine oil from coolant, and maintains proper cylinder compression. When replacing the gasket, head bolts must always be replaced with new ones, and it is recommended to also inspect valve cover gaskets, valve stem seals, and check the cylinder head for possible resurfacing.

















