5P-8768 5P8768 Composite Cylinder Liner Seal Gasket Kit for CAT 120G Motor Grader 3304 Engine Overhaul Maintenance 530B 528B

1. Quick Details of  seal 5P-8768:

2. 5P-8768 parts on group :

3. 5P-8768 picture:

4. Service part number :

 
5. FAQ

Q: What unique multi-material composite sealing advantages does this cylinder liner gasket kit have compared with cheap single rubber liner seal sets sold in aftermarket stores for CAT 120G 3304 engines?
A: The 3304 engine cylinder liner fitted on CAT 120G motor graders bears sustained high combustion pressure and frequent cold-hot thermal expansion contraction cycles every construction shift, enduring long-term erosion of high-temperature coolant, engine lubricating oil and high-pressure combustion gas in all-season outdoor road construction environments. HNBR large liner O-rings feature balanced high-temperature coolant resistance and low-temperature rebound elasticity; they will not harden, crack or lose compression tightness after thousands of cold-hot alternating cycles, a fatal defect of ordinary NBR single rubber liner seals. Aramid fiber flat base gaskets have stable compression recovery performance, which can fill tiny gaps between liner bottom and engine block to prevent coolant leakage and gas blow-by. Thin stainless steel anti-extrusion shims block the soft HNBR rubber ring from being pinched into tiny assembly gaps under instantaneous combustion pressure surges, avoiding permanent rubber deformation failure. Mini FKM locating rings resist diesel fuel swelling and high-temperature aging to seal small fuel and cooling auxiliary passages. This multi-material matching design extends the whole single cylinder liner sealing service cycle by over 88% compared with low-cost single rubber gasket kits.

Q: How can field road machinery maintenance technicians quickly distinguish each sealing and auxiliary component inside this 5P-8768 gasket kit through distinct color and structural shape features?
A: The core large cylinder liner HNBR sealing O-rings are matte black thick circular rubber rings with large inner diameter, the biggest sealing accessories inside the whole kit, soft elastic texture. Aramid fiber liner base flat gaskets are light beige thin fiber sheets with special irregular outlines matching the cylinder liner bottom plane, uniform fiber texture visible on cross-section. Stainless steel anti-extrusion shims are silver ultra-thin flat metal rings placed between the liner O-ring and engine block, with obvious metallic luster and rigid thin texture. Small FKM static locating seal rings are dark brown tiny elastic circular rings, easy to distinguish from black HNBR large O-rings by color difference. Every component is printed with size matching marks exclusive to CAT 3304 engine single cylinder liners, greatly speeding up classification and accurate matching during on-site engine liner replacement overhaul.

6. Exhibition and Wearhous

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