Cummins Original Diesel Engine Parts 6BT5.9 3932520 3903384 Piston Ring For Cummins 6BT5.9 Truck

Desc.

Ring Oil Piston

Part No

3932520

Brand Name

Cummins, Detroit, DCEC, CCEC, XCEC etc.

Other parts

pls contact freely if you need other P/N

Engine Type

Diesel engine, Gas engine, Diesel Generator, Marine engine, Construction engine Pump engine etc.

Spare Type

Wearing spare parts, maintenance tools, repair kit, upper and lower engine gasket kit.

Condition:

Original and brand new

Applicatble industriy

Retail, marine engines, Construction works, Energy & Mining etc

Key Word:

Original spare parts and engine repair tool kits

Trade terms

FOB EXW CIF DDU DDP, Door to door is available in some countries.

Delivery time:

Most parts are in stock, bulk order based on qty

Payment

T/T, L/C, D/A, Alipay, Western Union, Paypal etc.

Place of origin

China/ USA/ Japan/ Austria/ Mexico

Package

Neutral or original packaging

About the product

Distinguishing between good and bad

The working surface of the piston ring shall not have scratches, abrasions, or peeling. The outer cylindrical surface and upper and lower end faces shall have a certain degree of smoothness, and the curvature deviation shall not exceed 0.02-0.04 millimeters. The standard sinking amount of the ring in the groove shall not exceed 0.15-0.25 millimeters. The elasticity and clearance of the piston ring shall comply with the regulations. In addition, the light leakage of the piston ring should be checked by placing it flat inside the cylinder, placing a small light bulb under the piston ring, and a light shielding plate on top. Then, observe the light leakage gap between the piston ring and the cylinder wall to determine whether the contact between the piston ring and the cylinder wall is good. In general, the leakage gap of the piston ring measured with a thickness gauge should not exceed 0.03 millimeters. The length of continuous light leakage gaps should not exceed one-third of the cylinder diameter, the length of several light leakage gaps should not exceed one-third of the cylinder diameter, and the total length of several light leakage gaps should not exceed half of the cylinder diameter. Otherwise, they should be replaced.

Marking regulations

According to GB/T 1149.1-94, all piston rings that require installation direction should be marked on the upper side, that is, the side close to the combustion chamber. The rings marked on the upper side include: conical ring, inner chamfer, outer cutting table ring, nose ring, wedge ring, and oil ring with required installation direction, all of which are marked on the upper side of the ring.

matters needing attention

Attention should be paid when installing piston rings

(1) The piston ring should be installed flat into the cylinder liner, and there should be a certain opening clearance at the interface.

(2) The piston ring should be installed on the piston, with a certain edge clearance along the height direction in the ring groove.

(3) The chrome plated ring should be installed on the first line, and the opening should not face the direction of the vortex groove on the top of the piston.

(4) The openings of each piston ring are staggered by 120 ℃ and are not allowed to face the piston pin hole.

(5) The conical section piston ring should be installed with the conical surface facing upwards.

(6) When installing a torsion ring, the chamfer or groove should be facing upwards; When installing the conical anti twist ring, keep the conical surface facing upwards.

(7) When installing the combination ring, the axial lining ring should be installed first, followed by the flat ring and waveform ring. Install a flat ring on top and bottom of the waveform ring, and the openings of each ring should be staggered.