Product Features

• Structure: A composite structure of high-strength alloy steel inner flange and oil-resistant, high-temperature nitrile rubber outer ring, with a ribbed rubber surface for enhanced heat dissipation.

• Performance: The rubber layer effectively absorbs torsional vibration and impact of the crankshaft, reducing resonance and noise. The steel flange ensures precise installation and load-bearing capacity.

Core Function

• Attenuates torsional vibration of the crankshaft during high-speed operation, preventing fatigue damage to the crankshaft, connecting rods, and other components.

• Isolates engine vibration from the vehicle chassis, improving driving stability and comfort.

• Protects engine accessories such as pulleys and timing belts from excessive vibration, extending their service life

Crankshaft Shock Absorber 202V02201-0182 for SINOTRUK SITRAK & HOWO Heavy-Duty Trucks

Every revolution of your engine’s crankshaft generates torsional vibrations that silently threaten the longevity of your powertrain. The Crankshaft Shock Absorber 202V02201-0182 stands as the frontline defender — mounted at the crankshaft front end, it absorbs and dissipates harmful torsional oscillations before they reach your timing system, bearings, and gear train. Engineered to OEM specifications for SINOTRUK SITRAK and HOWO premium heavy-duty trucks, this damper delivers measurable vibration reduction that translates directly into extended engine life and lower maintenance costs.

Why This Crankshaft Shock Absorber Matters to Your Fleet

Torsional vibration is the invisible killer of diesel engines. Without a properly functioning crankshaft shock absorber, harmonic resonance accelerates wear on crankshaft journals, timing gears, and front-end accessories. The 202V02201-0182 damper works tirelessly to:

• Suppress torsional vibration amplitude by up to 80% — protecting the crankshaft from fatigue cracking and premature failure.
• Shield the timing system — preventing gear chatter, chain stretch, and valve timing drift that degrade combustion efficiency.
• Extend bearing service life — reducing cyclic loading on main bearings and thrust washers.
• Maintain accessory belt stability — eliminating belt slip and abnormal wear on alternators, compressors, and water pumps.
• Lower total cost of ownership — one precision-engineered component prevents cascading failures worth thousands in repairs.

Application: Compatible Vehicle Models

The Crankshaft Shock Absorber 202V02201-0182 is purpose-built for SINOTRUK’s premium heavy-duty platforms equipped with MC/D series high-horsepower engines:

• SINOTRUK SITRAK C7H — Long-haul tractor units (480–540 HP configurations)
• SINOTRUK SITRAK G7 — Heavy-duty logistics and construction vehicles
• SINOTRUK HOWO T7H — Premium highway tractors
• SINOTRUK HOWO A7 — High-performance heavy haulers
• SINOTRUK HOWO TX — Next-generation intelligent heavy trucks

This damper is specifically calibrated for the MC11/MC13 engine family’s firing order and crankshaft geometry, ensuring resonance frequencies are precisely targeted and neutralized.

Technical Specifications

Quality Assurance: Built to Endure

This crankshaft shock absorber doesn’t just meet specifications — it earns your confidence through rigorous validation:

• Dynamic balancing tested — every unit is spin-balanced to minimize residual imbalance below 5 g·cm.
• Thermal cycling validated — withstands repeated hot-cold cycles simulating 10+ years of real-world operation.
• Dimensional inspection — CNC-machined mounting surfaces held to ±0.02 mm tolerance for perfect crankshaft fitment.
• Batch traceability — full material and production records maintained for every shipment.

OEM/ODM Capability & Custom Packaging

JINAN METTLEAD AUTO SALES CO., LTD. understands that your brand identity matters. We offer flexible partnership options that adapt to your business model:

• White-label packaging — ship directly to your customers under your own brand with professional custom boxes, labels, and documentation.
• Custom part number cross-referencing — we print your internal SKU alongside the OEM number for seamless warehouse integration.
• Bulk order programs — volume pricing tiers with dedicated inventory allocation for high-turnover parts.
• Mixed container loading — combine this crankshaft shock absorber with other SINOTRUK HOWO engine parts to maximize shipping efficiency.

FAQ — Crankshaft Shock Absorber 202V02201-0182

What symptoms indicate a failing crankshaft shock absorber?

A worn crankshaft shock absorber announces its distress through unusual front-end engine vibrations, visible wobble in the harmonic balancer pulley, cracking or bulging of the rubber element, and accelerated belt wear. If your drivers report a low-frequency rumble at specific RPM ranges, the damper’s ability to suppress resonance has likely degraded beyond safe limits.

How often should the 202V02201-0182 crankshaft damper be replaced?

For SINOTRUK SITRAK and HOWO heavy-duty applications, we recommend inspection every 300,000 km and proactive replacement at 500,000 km — or sooner if visual cracks, fluid leakage, or excessive runout are detected. Prevention costs a fraction of crankshaft repair.

Is this crankshaft shock absorber an exact OEM replacement?

Yes. The 202V02201-0182 is manufactured to original equipment dimensions, material specifications, and performance parameters. It installs directly onto the crankshaft nose without any modifications, adapters, or re-drilling.

Can torsional vibration damage other engine components if the damper fails?

Absolutely. An uncontrolled torsional vibration propagates through the entire front-end drive system. It fatigues crankshaft snouts, destroys timing gear teeth, loosens front oil seals causing leaks, and can even crack the engine block’s front cover. The crankshaft shock absorber is inexpensive insurance against catastrophic engine damage.

What is the difference between a crankshaft shock absorber and a simple pulley?

A plain pulley merely transmits rotational motion to accessories. The crankshaft shock absorber integrates a viscous or elastomeric damping element that converts torsional vibration energy into heat, actively protecting the crankshaft. They look similar externally, but their engineering purpose is fundamentally different.

Partner With a Trusted SINOTRUK Parts Supplier

JINAN METTLEAD AUTO SALES CO., LTD. delivers factory-direct pricing, a comprehensive catalog of SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON genuine and aftermarket parts, and the responsive service that procurement managers depend on. We ship globally with flexible, secure payment terms — and our doors are always open for on-site factory visits.

Ready to secure competitive pricing on the Crankshaft Shock Absorber 202V02201-0182? Send us your quantity requirements and target delivery date. Our team responds within 12 hours with a detailed quotation including FOB/CIF options.

👉 Contact us now to request your quote — let’s keep your fleet running smoothly.

Browse our full range of SINOTRUK HOWO engine parts to consolidate your order and reduce per-unit shipping costs.