A flywheel is a critical rotating mass that stores kinetic energy and supports the clutch. A balanced flywheel ensures smooth operation. This genuine HOWO kit includes the flywheel assembly and ten flywheel bolts. When you choose authentic Howo Parts, you receive a flywheel engineered for the MC13 engine. For a complete overhaul, also see our clutch bolt kit.
The flywheel assembly is a one‑piece nodular cast iron component that mounts to the crankshaft. One unit is supplied, 430mm diameter, 85kg. This rotating element has a precision‑ground friction face and a ring gear. It is dynamically balanced to ISO 1940 G6.3. The assembly includes dowel pins and ten mounting holes. This component is for the 430mm diaphragm clutch. The friction surface is induction hardened. The ring gear has 138 teeth. A warped flywheel causes clutch judder. A genuine part ensures correct dimensions.
The flywheel bolt is a high‑strength fastener that secures the rotating assembly to the crankshaft flange. Ten bolts are supplied, grade 12.9, M12x1.25, 45mm long. Each fastener has a 12‑point flange head. The bolts have zinc‑nickel coating. Tighten them to 60 Nm + 90°. Never reuse these bolts. A loose fastener can cause engine damage. Genuine HOWO bolts guarantee proper clamp load.
Flywheel – genuine HOWO heavy duty rotating assembly and bolt set
| Material Encoding | Name |
|---|---|
| 201-02301-6103 | Flywheel assembly |
| 200V90020-0419 | Flywheel bolt |
This rotating component is dynamically balanced. An unbalanced element causes vibration. The genuine HOWO product eliminates this risk.
These fasteners are class 12.9. They are torque‑to‑yield. Using correct bolts prevents loosening.
The friction surface is induction hardened. This extends the life of both the rotating assembly and the clutch disc.
The bolts have zinc‑nickel coating. The main component is oiled. This protects everything in harsh conditions.
The assembly stores rotational energy and smooths engine pulses. It provides a friction face for the clutch. Its ring gear engages the starter. The unit is bolted to the crankshaft with ten bolts. Its mass (85kg) aids idle stability. Inspect the friction surface for scoring during clutch replacement. Resurface only within limits. A genuine part ensures correct inertia.
Clean the crankshaft flange. Position the unit. Apply oil to bolt threads. Insert ten bolts and hand‑tighten. Torque bolts to 60 Nm in crossing pattern. Then tighten each an additional 90°. Never reuse bolts. Check runout; it must not exceed 0.1mm. Install the clutch. The rotating assembly is now ready.
This assembly fits HOWO MAX 4X2 MC13 engines from 2018 onward. Its diameter is 430mm. Its ring gear has 138 teeth. The bolt pattern is 10 holes, PCD 130mm. This part does not fit MC11 or MC07 engines. Always verify your engine before ordering.
Inspect the unit at each clutch change. Check its face for cracks or heat spots. Measure runout. If scored, it can be resurfaced. Replace if damaged beyond limit. The ring gear can be replaced separately. Always use new bolts. A neglected assembly leads to clutch failure.
Clutch judder often means a warped component. Measure runout; replace if >0.1mm. A clicking at start indicates worn ring gear. Replace the assembly. Loose bolts may have been reused. Always install new bolts. A cracked unit makes rumbling noise; replace immediately.
Aftermarket components use lower grade iron that cracks. Their bolts may be class 10.9 instead of 12.9. Counterfeit fasteners snap. The ring gear may wear fast. Genuine HOWO parts are made to OEM specs. The small extra cost is worth the safety.
The assembly is shipped in recyclable cardboard. The bolts are in poly bags. The facility is ISO 14001 certified. No hazardous substances are used. The part has biodegradable rust oil.
This kit includes the flywheel assembly and ten bolts. Order using material encodings above. Authorized HOWO dealers in Nigeria stock genuine parts. Volume discounts for fleet orders. Provide engine serial number.
Nigerian fleet managers report smooth engagement with this component. The bolts held torque. The friction face resisted wear. Many standardize on this assembly for MC13 clutch jobs.
The assembly is shipped in a 50x50x15cm box, weight 90kg. Store it dry. Do not remove rust oil until installation. Protect from impact.
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