Sinotruk Genuine VG1246040020 Cylinder Head Bolt Kit (TTY Design, For D12WP13 Engines)

Sinotruk Genuine VG1246040020 Cylinder Head Bolt Kit (TTY Design, For D12WP13 Engines)

Technical Specifications‌:

• ‌Material‌:
  • ISO 898-1 Class 14.9 alloy steel with black phosphating coating
  • Ultrasonic tested for internal defects
• ‌Dimensions‌: M16×2.0 thread × 185mm length (measured from underside)
• ‌Torque Procedure‌:
  • Stage 1: 80Nm ±3%
  • Stage 2: 120° turn +15° (final clamp force: 22,500kgf ±5%)
• ‌Certifications‌:
  • Meets MAN 3271 standard for diesel head bolts
  • Salt spray resistance: 720hrs (ASTM B117)
• ‌Compatibility‌:
  • Sinotruk D12 Euro VI Engine (2020+)
  • WP13 Mining Truck Models
  • Replaces #ZZ5208030044

‌Installation Notes‌:

1. Critical:
   • Discard after single use (TTY bolts lose 40% clamping force if reused)
   • Use stretch gauge (included) to verify 0.15-0.18mm elongation
2. Preparation:
   • Chase threaded holes with M16×2.0 bottoming tap
   • Lubricate threads with Sinotruk #GX-112 assembly oil only
3. Sequence:
   • Tighten in 3 passes following Sinotruk S-1428 spiral pattern