Description

Technical Parameters

The 612630020222 flywheel is custom-made for SHACMAN heavy-duty trucks, a core powertrain part vital to stable engine operation, smooth power transfer, and driving safety. Installed between the engine crankshaft and clutch, it stores rotational energy to balance crankshaft speed fluctuations from intermittent combustion-eliminating jitters, ensuring steady idle, and smoothing gear shifts. Faulty or low-grade flywheels cause uneven power, gear engagement issues, engine vibration, and clutch damage, a major hassle for long-haul drivers and fleets.

This is a go-to replacement for SHACMAN fleets and owner-operators, built to handle heavy-duty use-whether hauling full loads over mountains, busy logistics routes, or long continuous runs. Precision-manufactured for OEM fit, no modifications needed for seamless installation. Designed to withstand high torque and extreme temperatures of SHACMAN's engine systems, it maintains performance even in tough conditions.

612630020222 SHACMAN Euro 5 Flywheel 612630020222 SHACMAN Flywheel 612630020222 SHACMAN WP12 Euro 5 Flywheel

Compatibility Details

Category	Specifications
Fits Models	SHACMAN heavy-duty trucks (6126 series engine models)
Works With	SHACMAN original clutch assembly & 6126 series crankshaft
OE/OEM Number	612630020222
Extra Service	Free VIN part check + professional installation guidance

Key Specifications

Material: Heat-treated high-strength nodular cast iron (QT500-7)-excellent wear & impact resistance
Outer Diameter: 430mm (optimized for SHACMAN powertrain torque transfer)
Weight: 18.5kg (precision weight distribution for optimal balance)
Friction Surface Hardness: HRC 28-32 (stable clutch engagement, long life)
Temperature Resistance: -40℃ to +350℃ (handles extreme cold & high engine temps)
Balance Grade: G6.3 (OEM precision, minimal engine vibration)

Materials & Production
All parts meet SHACMAN OEM standards, from certified suppliers. Premium nodular cast iron undergoes precise smelting and heat treatment for enhanced hardness and ductility, avoiding cracking under high torque. Precision-ground friction surface ensures flatness and reliable clutch contact. Every unit passes strict dimensional inspection and dynamic balance testing for seamless integration with SHACMAN's powertrain.

Quality & Testing

Quality Standard: OEM
Testing: Dynamic balance, dimensional accuracy, hardness, friction surface flatness, on-vehicle fitting
Certifications: IATF16949, ISO9001
Traceability: Unique batch code-trackable from raw material to delivery

Service Life & Performance

Expected Life: ≥ 300,000km/3 years (normal use); ≥ 200,000km (heavy-load/frequent starts)
40% more wear-resistant than ordinary cast iron, standing up to clutch stress and high torque. Precise dynamic balance eliminates jitter, smooths idle, and reduces crankshaft bearing wear. Heat-treated friction surface maintains performance after long use, avoiding clutch slippage and ensuring consistent power.

Failure Prevention & Maintenance Savings

Low-quality flywheels cause uneven weight, weak strength, or poor friction processing-leading to frequent breakdowns, higher fuel use, and costly downtime. This flywheel solves these with premium materials and strict quality control. Long service life cuts replacement frequency, lowering maintenance costs for fleets, while reliable performance reduces on-road breakdowns.

Packaging & Labeling

Packaging: Neutral, custom-branded, or bulk corrugated cartons
Protection: EPE foam wrapping (collision prevention); reinforced outer carton (no deformation in transit)
Markings: OE number, batch code, production date, installation notes on every unit

Lead Time & Inventory