CATEngine Parts

3466615PK Body As-Piston — Cat 320C 320D

Name: 3466615PK Body As-Piston — Cat 320C 320D
Brand: CAT
SKU: 3466615PK
Availability: InStock

This is a CAT Body As-Piston component, a critical part of the hydraulic system responsible for converting hydraulic pressure into mechanical force within a hydraulic cylinder. Manufactured to exact OEM specifications, it ensures precise sealing and smooth operation, unlike a worn or damaged piston body which can cause leaks and erratic movement. Operators may notice a loss of hydraulic power, slow or jerky cylinder movement, or external hydraulic fluid leaks originating from the cylinder assembly when this part fails.

Engine Component – Part No 3466615PK – CAT Spare Part

Part Specifications

Brand	CAT
Category	Engine Parts
Condition	Aftermarket — OEM Specification
Dispatch	Same-day from Mumbai (before 3 PM IST)
GST Invoice	Available — all orders
Export Docs	Commercial invoice, packing list, COO

Compatible Models

Caterpillar 320C
320D
323D
325D
329E
330C
330D
335F
336D
336E
340F
349E excavators
D6N
D6T
D7E
D8T

Always verify with serial number before ordering.

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Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included

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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Failure Symptoms

Initial symptoms of a failing piston body include a noticeable decrease in hydraulic system performance, such as slower boom or bucket movements, and audible signs of internal leakage like hissing. If ignored, the cylinder may lose its lifting or holding capacity, and external leaks may become apparent around the cylinder rod. Continued operation risks significant downtime and potential damage to other hydraulic components due to contamination or pressure loss.

Installation Tip

Carefully inspect the cylinder bore for any scoring or damage before installing the new piston body, as imperfections can quickly damage the new seals. Ensure all O-rings and backup rings are properly seated and lubricated with appropriate hydraulic fluid before assembly.

Service Note

When replacing the piston body, it is critical to inspect and replace the cylinder rod seal, piston seals, and any wear bands within the hydraulic cylinder.

Part Type	Hydraulic Cylinder Piston Body
Material	Hardened Steel
Application	Hydraulic Cylinder Assembly
Service Life	Replace as needed based on inspection
Compatibility	OEM specification
Condition	New — OEM specification aftermarket

3466615PK Body As-Piston — Cat 320C 320D

Compatible Models

Related CAT Parts

Ship This Part To Your Location

Installation & Application Notes

Failure Symptoms