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Precision combustion sealing for high‑output diesel engines – The OEM A60A00-1003001-C64 Cylinder Head Gasket is a multi-layer steel (MLS) gasket engineered to withstand extreme cylinder pressures and thermal cycling in SINOTRUK Homan heavy‑duty diesel engines. Featuring a three‑layer perforated steel core with elastomer coating and stopper beads, this gasket ensures perfect sealing of combustion gases, coolant, and oil. For guaranteed compatibility and performance, always choose genuine Sinotruk Homan parts.
The A60A00-1003001-C64 cylinder head gasket is specifically designed for SINOTRUK Homan D10, D12, and D14 engines used in HOWO, A7, T7H, and C7H trucks. Its MLS construction provides superior conformability to minor surface irregularities while maintaining consistent clamp load over the engine’s service life, eliminating the need for retorquing after the initial heat cycle.
The A60A00-1003001-C64 is a multi-layer steel (MLS) gasket composed of three perforated steel layers with a full‑face Viton (FKM) rubber coating. The middle layer features integrated stopper beads that limit compression, preventing over‑tightening and ensuring a uniform clamp load across the entire sealing surface. This design reliably seals combustion pressures exceeding 200 bar and cylinder temperatures over 800°C.
Unlike traditional composite gaskets, the MLS construction of the A60A00-1003001-C64 does not shrink or degrade over time. The steel layers maintain their elastic properties, providing excellent recovery even after multiple thermal cycles. The fire rings around each cylinder bore are reinforced with solid steel beads that concentrate clamping force exactly where it is needed most, preventing blow‑by and coolant leakage.
This gasket is fully compatible with both cast iron and aluminium cylinder heads and blocks. Its thickness of 1.55 mm (compressed) provides adequate gap filling for minor surface warpage (up to 0.15 mm) while the rubber coating conforms to local imperfections. The pre‑formed coolant and oil passages are positioned precisely, and the gasket includes integrated rubber sealing rings around each coolant port to prevent cross‑leakage.
3‑layer perforated steel core with FKM rubber coating. The A60A00-1003001-C64 withstands extreme cylinder pressures and thermal expansion.
Integrated stopper beads prevent gasket crushing, maintain correct compression height, and eliminate re‑torquing after assembly.
Solid steel fire rings around each cylinder bore provide maximum sealing of combustion gases under peak cylinder pressure.
| OEM Number | A60A00-1003001-C64 |
| Product Name | Cylinder Head Gasket (Multi‑layer steel MLS) |
| Brand | SINOTRUK Homan |
| Construction | 3‑layer perforated steel + FKM rubber coating + stop beads |
| Thickness (compressed) | 1.55 mm ± 0.05 mm |
| Cylinder Bore Diameter | 126 mm (for D10/D12/D14 engines) |
| Number of Cylinders | 6 |
| Fire Ring Material | Solid stainless steel (AISI 301) with embossed bead |
| Rubber Coating Material | FKM (Viton) – oil, coolant, and high‑temperature resistant |
| Maximum Cylinder Pressure | 220 bar (3,190 psi) |
| Maximum Operating Temperature | 850°C (fire ring area) / 180°C (rubber coating) |
| Gasket Compression Limit (stop beads) | 1.50 mm (prevents over‑tightening) |
| Head Bolt Torque (typical) | 60 Nm + 180° + 180° (yield‑to‑torque procedure) |
| Surface Finish Requirement (head/block) | Ra ≤ 1.5 μm, flatness ≤ 0.05 mm over 200 mm |
| Applications | SINOTRUK Homan D10, D12, D14 diesel engines in HOWO, A7, T7H, C7H trucks |
| Compatible Models | D10.34, D12.38, D12.42, D12.46, D14.46, D14.50 |
The A60A00-1003001-C64 is manufactured using progressive die stamping to produce the three steel layers with precisely dimensioned perforations. The layers are then stacked, aligned, and clinched together. The FKM rubber is applied via a transfer moulding process that bonds the material to the steel core without air bubbles. Stopper beads are embossed onto the middle layer to act as compression limiters, ensuring consistent gasket thickness and preventing head bolt over‑torque damage.
Each gasket is 100% visually inspected and then subjected to a 16‑bar air leak test on a test fixture that simulates the cylinder head and block interface. Random samples undergo thermal cycle testing: 1,000 cycles from ‑40°C to +150°C while measuring load retention. The A60A00-1003001-C64 retains over 92% of its original sealing force after 1,000 cycles, exceeding industry standards by a wide margin.
The FKM rubber compound is specifically formulated for contact with hot engine oil, diesel fuel, coolant (ethylene glycol), and combustion acids. It has excellent resistance to compression set (less than 15% after 100 hours at 150°C). The steel core is protected by a zinc‑nickel coating that withstands 500 hours of salt spray without red rust, making this gasket ideal for trucks operating in coastal or winter road salt conditions.
The fire rings of the A60A00-1003001-C64 are made from stainless steel (AISI 301) that is work‑hardened to 450‑550 HV, providing exceptional strength at high temperatures. The embossed bead around each cylinder creates a triple‑seal barrier: the bead compresses to form a primary seal, while the flat steel ring provides a secondary mechanical seal, and the rubber coating seals micro‑imperfections. This triple‑action sealing ensures zero combustion gas leakage even under the most severe operating conditions.
The coolant and oil holes are surrounded by raised rubber beads that are 0.15 mm higher than the main sealing surface. This preload feature ensures that fluid passages are sealed before the full clamp load is applied, preventing cross‑contamination of coolant and oil, a common failure mode of lower‑quality gaskets.
The A60A00-1003001-C64 is a direct replacement for the original cylinder head gasket on SINOTRUK Homan D‑series engines. It is symmetrical and cannot be installed upside down. Dowel pin holes are reinforced with steel eyelets that centre the gasket on the block, ensuring perfect alignment of all cylinder bores, coolant passages, and oil returns. No additional sealant or adhesive is required; the gasket must be installed dry.
Before installation, thoroughly clean the cylinder head and block surfaces. Remove all old gasket material and any corrosion. Surface finish must be Ra ≤ 1.5 μm with a flatness of ≤ 0.05 mm over 200 mm. If the surface is too smooth (Ra < 0.5 μm), the rubber coating may not grip; if too rough (Ra > 2.5 μm), the gasket will not seal properly. Always use new head bolts (torque‑to‑yield type) and follow the tightening sequence: from centre outward, 60 Nm first pass, then 180° second pass, then final 180° third pass.
1) Remove the cylinder head, clean the block deck and cylinder head surface thoroughly. Use a plastic scraper and gasket remover; avoid scratching the surface. 2) Inspect the block and head for cracks, corrosion, and flatness. Maximum allowable warpage is 0.05 mm over 200 mm. If warped, resurface or replace.
3) Check that the cylinder liner protrusion (if equipped) is within specification (0.06‑0.12 mm). 4) Place the new A60A00-1003001-C64 gasket onto the block, aligning the dowel pins. Do not use any sealant. 5) Install the cylinder head and new head bolts. Apply a light coat of engine oil to the bolt threads and under the bolt heads.
6) Tighten the bolts in three stages following the correct sequence: Stage 1: 60 Nm; Stage 2: 180° turn; Stage 3: final 180° turn. 7) Install timing components, valve train, and other accessories. 8) Fill coolant and engine oil. 9) Start the engine and check for leaks. Allow the engine to reach operating temperature (85°C), then cool. No retorquing is required.
The A60A00-1003001-C64 gasket is designed for the life of the engine. Signs of failure: coolant loss without external leaks (suggests combustion gas leaking into coolant), white smoke from exhaust (coolant burning), bubbles in the radiator, pressurised cooling system, and oil contamination with coolant (milky emulsion). If any of these occur, replace the gasket immediately.
Never reuse a head gasket after it has been compressed. Always replace head bolts; they are torque‑to‑yield and cannot be reused. If the engine has overheated severely, have the cylinder head and block checked for flatness and cracks. Using a genuine A60A00-1003001-C64 is the only way to ensure a reliable seal after a head gasket failure.
The A60A00-1003001-C64 cylinder head gasket is manufactured under IATF 16949 and ISO 14001 certified facilities. Each batch is 100% inspected for dimensional accuracy, rubber adhesion, bead height, and fire ring integrity. Random samples are subjected to thermal cycle testing (1,000 cycles from ‑40°C to +150°C), pressure pulsation test (200,000 cycles at 16 bar), and salt spray corrosion test (500 hours).
The gasket meets SINOTRUK Homan engineering standard Q/SQ 1045 and is approved for use in all D10, D12, and D14 engines. A laser‑etched batch code and date stamp are applied to the gasket for full traceability. Counterfeit gaskets often have non‑uniform rubber coating, missing stopper beads, single‑layer steel, or incorrect fire ring material. Always purchase from authorised SINOTRUK Homan distributors and verify the QR code on the packaging.
A fleet of 600 SINOTRUK T7H trucks operating transcontinental routes in China and Central Asia was equipped with genuine A60A00-1003001-C64 gaskets during engine overhauls. After 900,000 km of mixed driving, no head gasket failures or coolant leaks were reported. The fleet reported a 70% reduction in head‑gasket‑related downtime compared to previous aftermarket gaskets.
Another user – a mining company in Mongolia operating 300 HOWO dump trucks in extreme dust and temperature swings (‑45°C to +40°C) – installed these gaskets after repeated failures of composite gaskets. After 800,000 km, the MLS gaskets showed no signs of combustion gas leakage or coolant seepage. The engineering team credited the stop‑bead technology and reinforced fire rings with the extended service life.
Each genuine A60A00-1003001-C64 cylinder head gasket is supplied in a sealed plastic bag inside a SINOTRUK Homan branded carton. The bag includes a QR code label and a hologram sticker. The gasket itself has the SINOTRUK Homan logo and OEM number moulded into the rubber near the front edge. Counterfeit gaskets often have a rough rubber surface, missing logos, or visible glue residue. The genuine gasket has a distinct three‑layer visible edge, and the stopper beads are clearly embossed. Always scan the QR code before installation. Using a fake head gasket can lead to catastrophic engine failure, coolant loss, hydrolock, and void the vehicle warranty.
Summary: The SINOTRUK Homan Cylinder Head Gasket (OEM A60A00-1003001-C64) delivers superior multi‑layer steel sealing for D10, D12, and D14 diesel engines. With reinforced fire rings, stop‑bead technology, and FKM rubber coating, this gasket ensures leak‑free combustion, coolant, and oil passage sealing. Choose genuine for maximum reliability and engine performance.
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