7E-6047 Piston Ring 7E6047 for 3304 3306 Diesel Engine 235C 235D EL300 330 LN Excavator

7E-6047 / 7E6047 Diesel Engine Piston Ring

The 7E-6047 Piston Ring, also referenced as 7E6047, is designed for compatible 3304 and 3306 diesel engine applications used in excavators and heavy construction machinery, including 235C, 235D, EL300 and 330 LN applications.

As an important internal engine component, the piston ring works between the piston and cylinder liner to help maintain cylinder compression, control lubricating oil and support efficient combustion. A properly matched piston ring is essential for reliable engine performance during demanding excavation, construction and earthmoving operations.

The JISION 7E-6047 Engine Piston Ring is suitable for diesel engine overhaul, piston servicing and replacement of worn or damaged engine components.

Product Specifications

Key Features

• Compatible with 3304 & 3306 Engines – Designed for selected applications using compatible 3304 and 3306 diesel engines.
• 7E-6047 Replacement – Suitable for applications referencing 7E-6047 / 7E6047.
• Reliable Cylinder Sealing – Helps maintain compression between the piston and cylinder wall during engine operation.
• Oil Control – Supports proper lubrication management and helps control excessive lubricating oil entering the combustion chamber.
• Precision Manufacturing – Designed for proper fit and movement within compatible piston and cylinder liner assemblies.
• Wear-Resistant Construction – Suitable for the repeated heat, pressure and friction found inside heavy-duty diesel engines.
• Engine Overhaul Solution – Ideal for engine rebuilding, piston servicing and replacement of worn piston rings.

Compatible Engine & Machine Models

Engine Models

3304 / 3306 Diesel Engine

Compatible Applications

235C / 235D / EL300 / 330 LN

Reference Part Numbers

7E-6047
7E6047

Compatibility can vary according to engine serial number and machine configuration. Please verify the original part number and engine specification before ordering.

Main Function

Piston rings form a critical sealing interface between the piston and cylinder liner. During engine operation, they help maintain combustion pressure while controlling lubricating oil on the cylinder wall.

A properly functioning piston ring helps support:

Cylinder Compression · Combustion Efficiency · Oil Control · Reduced Blow-By · Stable Engine Power · Reliable Diesel Engine Operation

Piston ring performance is closely related to the condition of the piston, cylinder liner and lubrication system.

Common Replacement Situations

Piston rings should be inspected during engine repair or overhaul when symptoms such as the following occur:

Low Compression · Excessive Blow-By · High Oil Consumption · Blue Exhaust Smoke · Reduced Engine Power · Difficult Starting · Worn or Damaged Piston Rings

These symptoms may also be related to worn cylinder liners, pistons, valves, turbocharger components or other internal engine parts. A complete engine inspection is recommended before replacement.

Engine Overhaul Applications

The 7E-6047 / 7E6047 Piston Ring is suitable for compatible diesel engine maintenance and rebuilding applications in:

Excavators · Construction Machinery · Earthmoving Equipment · Mining Equipment · Heavy Equipment · Diesel Engine Repair

During an engine overhaul, we recommend inspecting related components including the piston, cylinder liner, piston pin, connecting rod, bearings, valves, gaskets and seals.

Installation Recommendations

Before installation, carefully inspect the piston ring grooves and cylinder liner condition. Remove carbon deposits and contamination from the piston ring grooves and ensure that the new ring moves correctly after installation.

Check the ring end gap, side clearance, ring orientation and cylinder liner condition according to the applicable engine service specifications.

Avoid excessive spreading or twisting of the piston ring during installation, as incorrect handling can damage the ring.

Professional diesel engine installation and measurement are recommended.

Why Choose JISION?

JISION supplies replacement parts for excavators, construction machinery and heavy-duty diesel engines worldwide. Our engine parts range includes piston rings, pistons, cylinder liners, piston pins, connecting rods, crankshafts, bearings, cylinder heads, valves, fuel injectors, injection pumps and engine overhaul components.

We support parts matching, wholesale orders, quality inspection, secure export packaging, global shipping and professional customer service.

For accurate parts matching, please provide your machine model, engine model, engine serial number, original part number and photos or dimensions of the original piston ring.

Important Notice

Please verify 7E-6047 / 7E6047 and your 3304 / 3306 engine configuration before ordering.

Different engine versions may use different piston and ring specifications. We recommend confirming the piston diameter, ring width, ring thickness, ring groove dimensions and engine serial number before purchase.

JISION

Reliable Parts, Stronger Tomorrow.

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