8N-3102 8N3102 Engine Piston With Pin for CAT 3304 3306

8N3102 Piston Body for Caterpillar 3304 3306 Engine

The 8N3102 piston body is supplied as an aftermarket replacement engine piston body for Caterpillar 3304 and 3306 diesel engine applications. It is used during engine repair, piston replacement and overhaul work where the original piston body is worn, damaged or no longer suitable for continued service.

This product page focuses on the 8N3102 / 8N-3102 piston body itself. The product can be supplied by engine set: 4 pieces for Caterpillar 3304 engine applications or 6 pieces for Caterpillar 3306 engine applications. Before ordering, please confirm the engine model, old piston part number, piston configuration and required set quantity.

Application for Caterpillar 3304 and 3306 Engines

The 8N-3102 engine piston body is mainly supplied for Caterpillar 3304 and 3306 engine repair applications. It is also searched together with Caterpillar 3300 Series overhaul parts. Because piston specifications may vary by engine arrangement, compression ratio and serial number, the old piston sample or engine nameplate should be checked before purchase.

Replacement and Inspection Notes

During installation, inspect the cylinder liner, piston ring grooves, piston pin, connecting rod bushing and cylinder clearance at the same time. If the piston body is replaced during an engine overhaul, related components such as rings, pins, clips, liners and bearings should also be checked to ensure correct assembly and stable engine performance.

Order Confirmation

To confirm the correct 8N3102 piston body, please send the engine model, machine model, engine serial number, old piston part number, required quantity and clear photos of the original piston crown, skirt and pin hole. Topvelsun can help check the fitment before quotation and shipment.

FAQ

Q1: What is 8N3102 used for?

8N3102 is an engine piston body used for Caterpillar 3304 and 3306 diesel engine repair and overhaul applications.

Q2: Is 8N3102 the same as 8N-3102?

Yes. 8N3102 and 8N-3102 are two common writing formats for the same Caterpillar piston body part number. The hyphen is often omitted in supplier listings and customer searches.

Q3: Is one set 4 pieces or 6 pieces?

It depends on the engine model. Caterpillar 3304 is a 4-cylinder engine, so one engine set uses 4 pieces. Caterpillar 3306 is a 6-cylinder engine, so one engine set uses 6 pieces.

Q4: Is this product a piston body or a full piston kit?

This page is for the 8N3102 piston body. If you need piston rings, piston pin, clips or a complete piston set, please confirm the required supply scope before quotation.

Q5: Can this piston body be used for Caterpillar 3306 engine?

This 8N3102 piston body is supplied for Caterpillar 3306 engine applications. Please confirm the engine serial number, piston configuration and old piston part number before ordering.

Q6: What information should I provide before buying?

Please provide the engine model, machine model, engine serial number, old piston part number, required quantity and photos of the piston crown, skirt and pin hole. These details help confirm the correct replacement.