A high-quality 02/630675 head gasket by NEXGEN. This is the key seal for the combustion chamber, oil channels, and water jackets between the engine block and cylinder head. It is designed for Perkins 400 series (e.g., 404C-22, 404C-22T - HR Engine) and 100 series (e.g., 104.22) engines. It fits a wide range of JCB (TLT, ROBOT, 1CX, 8052), Caterpillar (3024C), Gehl, Atlas, Weidemann, and other machines.
In the construction industry, machine reliability is the key to success. That's why we offer high-quality NEXGEN replacement parts for construction machinery, which meet the highest standards of durability and performance. Our products are the ideal solution for companies and specialists looking for reliable components at attractive prices.
| 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).
A head gasket is the centerpiece of a top-end engine rebuild. When replacing it, it is absolutely essential to also replace the cylinder head bolts with a new set. We also recommend inspecting the valve cover gasket, valve stem seals, and having the cylinder head resurfaced.
A failed ("blown") head gasket leads to serious engine failure. It can cause oil and coolant to mix (creating "milkshake" sludge), combustion gases to enter the cooling system (risking a burst radiator or hoses), or loss of compression. Ignoring these symptoms will lead to engine seizure or a cracked head/block.
The 02/630675 head gasket is the most critical seal in an engine. It is a thin, multi-layer plate clamped between the engine block and the cylinder head. Its job is to hermetically seal the combustion chambers (to maintain compression) and to separate the pressurized oil channels and coolant passages that flow between the block and head.
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No. This gasket (02/630675) is exclusively for machines with Perkins 100 and 400 series engines (e.g., 404C-22T). JCB DieselMax engines (used post-2005) have a completely different design and require different gaskets.
Older JCB part numbers for this same gasket include 02/634209, 02/634237, 02/634132, and 02/634131.
Head gasket thickness is critical for maintaining the correct compression ratio. It is chosen based on the piston protrusion (how high the piston comes up past the block deck). Installing the wrong thickness can lead to engine damage or incorrect performance.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
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Head gasket suitable for, among others: for JCB TLT forklifts and ROBOT machines with HR engine.

















