Wet Cylinder Liner 12211178 for MWM TBG620 V16 (6002)

Basic Information

• Part No.: 12211178
• Type: Wet cylinder liner
• Application: MWM TBG620 V16 (6002) gas engine
• Bore: φ170 mm, Stroke: 195 mm
• Material: Alloy cast iron with high-frequency induction hardened inner wall, wear and corrosion resistant
• Overall dimensions: Inner diameter φ170 mm, outer diameter approx. φ185 mm, total height approx. 320 mm

Compatibility & Interchange

• Applicable models: MWM TBG620 V12/V16/V20 & TBD620 series diesel engines
• Alternative part: 12911270
• Model note: TBG620 V16 (6002) is a standard 4-stroke turbocharged lean-burn gas engine, mainly used for CHP, natural gas and biogas power generation. Single cylinder displacement: 4.43 L, total electrical power: approx. 1364 kW.
• Distinction: Part No. 12300509 is specially designed for TBD620 diesel engines, not interchangeable.

Installation & Maintenance

1. Structural feature: Uniform cooling, low thermal deformation, direct replacement without cylinder boring during overhaul.
2. Assembly specification: Liner protrusion above cylinder block: 0.15–0.25 mm. Equipped with 3 rubber water seal rings to prevent coolant leakage.
3. Common faults: Inner wall wear/scuffing, seal ring aging & water leakage, flange cracking.
4. Inspection interval: Every 8000–10000 operating hours.

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