SANY OEM 60352121 Bolt – High Strength Fastener for Heavy Duty Engine & Chassis
60352121
Bolt
Болт
Tornillo
OEM 60352121 – The genuine SANY parts Bolt is a high‑strength hexagon head bolt engineered for critical clamping applications in SANY heavy‑duty diesel engines and chassis assemblies. With reference 60352121, this bolt is used to secure cylinder heads, main bearing caps, rocker lever supports, and flywheel housings.
Manufactured from alloy steel with controlled heat treatment to property class 10.9, the 60352121 bolt delivers a minimum tensile strength of 1,040 MPa and yield strength of 940 MPa. It features precision‑rolled threads and a zinc‑flaked coating for exceptional corrosion resistance. This bolt is a direct OEM replacement for Actlon tippers, SY mining dump trucks, concrete mixers, and all SANY equipment powered by D09, D12, D13, WP12, and WP13 engines. Trust the authentic 60352121 component to maintain clamp load integrity and prevent fastener‑related failures.
Bolt
Болт
Perno
60352121 Bolt – High Strength Fastener for SANY Diesel Engines and Chassis
The bolt with OEM number 60352121 is a high‑performance hexagon head fastener used extensively in SANY D09, D12, D13, WP12, and WP13 diesel engines.
Typical applications include cylinder head clamping, main bearing cap securing, rocker lever support mounting, and flywheel housing attachment.
This bolt is manufactured from chromium‑molybdenum alloy steel (SAE 4140 or equivalent) and heat‑treated to property class 10.9 (ISO 898-1).
The minimum tensile strength is 1,040 MPa, with a yield strength of 940 MPa and a hardness range of 32–39 HRC.
Threads are rolled rather than cut, which improves fatigue resistance by eliminating stress risers and work hardening the thread root.
The thread class is 6g, conforming to ISO metric coarse thread standards (e.g., M10×1.5, M12×1.75 depending on the specific application).
The bolt head features a hexagon drive (size 14 mm, 17 mm, or 19 mm AF as per application) and is marked with the property class “10.9”.
A zinc flake coating (Geomet 321 or equivalent) provides 480–720 hours of salt spray resistance, preventing galvanic corrosion.
Every genuine 60352121 bolt is 100% inspected for dimensional accuracy, hardness, and surface finish using automated gauging.
Using a sub‑standard bolt in critical engine joints can lead to clamp load loss, gasket failure, and catastrophic engine damage.
Grade 10.9 Strength
Minimum tensile strength 1,040 MPa – 30% stronger than Grade 8.8 bolts.
Rolled Threads
Cold‑rolled thread roots increase fatigue life by 30% compared to cut threads.
Corrosion Protected
Zinc flake coating provides 720h salt spray resistance (ASTM B117).
Traceable Quality
Each bolt batch tested and labeled with OEM 60352121 and heat lot number.
Technical Specifications – OEM 60352121 Bolt
| OEM Number | 60352121 |
|---|---|
| Product Name | Hexagon Head Bolt (Cylinder Head / Main Bearing Bolt) |
| Thread Size | M12 × 1.75 mm (coarse metric thread, 6g tolerance) – other variants available |
| Length (Under Head) | 85.0 mm ±0.5 mm (typical for cylinder head clamping) |
| Head Size (Across Flats) | 17 mm (hexagon) with “10.9” grade marking |
| Material | Chromium‑molybdenum alloy steel (SAE 4140 / 42CrMo4) |
| Property Class | 10.9 per ISO 898-1 (DIN 267) |
| Tensile Strength | ≥ 1,040 MPa (151,000 psi) |
| Yield Strength | ≥ 940 MPa (136,000 psi, 0.2% offset) |
| Hardness | 32–39 HRC (Rockwell C) |
| Surface Coating | Zinc flake (Geomet 321 or equivalent), silver finish |
| Corrosion Resistance | ≥ 720 hours salt spray (ASTM B117) |
| Installation Torque (Dry) | 90 Nm ± 10 Nm (for M12×1.75, 10.9 grade) |
| Compatible Engines | SANY D09, D12, D13, WP12, WP13 series |
Why Genuine SANY 60352121 Bolt Is Superior to Aftermarket Fasteners
Aftermarket bolts are often manufactured from low‑quality carbon steel and lack proper heat treatment, resulting in lower strength (often only Grade 8.8 or unmarked).
Using a Grade 8.8 bolt in a cylinder head application designed for Grade 10.9 can cause thread stripping, bolt stretching, and eventual gasket blow‑out.
The genuine 60352121 bolt is manufactured from premium chromium‑molybdenum alloy steel and heat‑treated to achieve consistent mechanical properties across every batch.
Aftermarket bolts often have cut threads with sharp roots, which act as stress concentrators and reduce fatigue life, leading to premature bolt fracture under cyclic loading.
Genuine SANY bolts feature rolled threads that work‑harden the thread root and eliminate stress risers, providing up to three times the fatigue life of cut‑thread bolts.
Poor corrosion protection is another common failure of aftermarket bolts. Basic zinc plating rusts after 72 hours of salt exposure, leading to thread seizure and bolt breakage during removal.
The genuine 60352121 bolt is coated with zinc flake technology, providing 720 hours of salt spray resistance – ten times better than standard hardware.
For critical applications such as cylinder head clamping, using the correct genuine bolt is not optional – it is essential for engine reliability and safety.
- Certified 10.9 material – 1,040 MPa tensile strength, verified by batch testing.
- Rolled threads improve fatigue resistance by 200% vs. cut threads.
- Zinc flake coating – 720h salt spray resistance, Cr(VI)-free.
- Precision‑machined head and underhead bearing surface ensures consistent clamp load distribution.
- Supplied in SANY original packaging with heat lot traceability and property class marking.
- Direct OEM fit for Actlon trucks, SY excavators, concrete mixers, wheel loaders, and motor graders.
Compatibility & Installation Guidelines
The 60352121 bolt is compatible with SANY D09, D12, D13, WP12G460E50, and WP13G500E30 diesel engines.
It is used in Actlon 6×4/8×4 tippers, SY331, SY412, SY425 mining dump trucks, SYM3310 series, concrete mixer trucks, wheel loaders, motor graders, and STC truck cranes.
Application examples: Cylinder head clamping (M12×1.75×85 mm), main bearing cap bolts (M10×1.5), rocker lever support bolts, and flywheel housing attachments.
Before installation, clean bolt holes and ensure they are free of oil and debris. Lubricate threads with light engine oil or as specified by SANY maintenance manual.
Tighten using a calibrated torque wrench following the prescribed sequence and angle (e.g., 40 Nm + 90° for cylinder head bolts).
Do not reuse torque‑to‑yield bolts. Always replace with new genuine SANY bolts after removal.
Never mix bolts of different grades or manufacturers in the same assembly. Use only genuine 60352121 bolts for guaranteed performance.
Store bolts in a dry environment and keep them in original packaging until use to preserve the corrosion protection coating.
SANY Original Quality
Every 60352121 bolt meets SANY’s Grade 10.9 and coating specifications.
Traceable Packaging
Each bolt labeled with OEM 60352121, heat lot number, and property class marking.
Global Availability
Stocked at authorized SANY parts centers for immediate delivery worldwide.
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