One New Aftermarket Replacement Standard Piston Ring Set (Single Cylinder) for Case/International Harvester (IH) Tractors and Combines

This standard-bore piston ring set provides a single-cylinder complement of three rings for Case/International Harvester (Case IH) diesel engines, including the D155, D179, D206, D239, D310, D358, and TD239 engine families. The set features a chrome-plated keystone top ring for superior sealing, a chrome-plated taper-faced internally stepped second ring, and a chrome-plated bevelled-edge oil control ring with helical coil spring for precise oil regulation. Replaces OEM part number 3139594R91.

Specifications

• Bore: 3.875" (98.42mm) - Standard
• Number of Rings: 3 (per cylinder)
• Top Ring: Chrome Plated Keystone - 3.00mm (CK1)
• 2nd Ring: Chrome Plated Taper Faced Internally Stepped Top - 2.38mm (CT2)
• 3rd Ring: Chrome Plated Bevelled Edge with Helical Coil Spring - 4.76mm (CBEH)
• Sold per cylinder

Compatible Models

Case/International Harvester Tractors: 268, 288, 433, 454, 474, 533, 574, 633, 644, 674, 684, 685, 685XL, 695, 695XL, 706, 733, 740, 743, 743XL, 744, 745, 745S, 745XL, 785, 785XL, 795, 795XL, 833, 840, 844, 844S, 844XL, 845, 845XL, 885, 885XL, 895, 895XL, 940, 955, 955XL, 956, 956XL, 995XL, 1046, 1055, 1055XL, 1056, 1056XL, 2400, 2500, 4210, 4220, 4230, 4240, HYDRO 84, HYDRO 86

Case/International Harvester Combines: 1620

International Harvester Backhoe/Industrial: 260A, 2400A, 2500A, 2500B, 2510B, 3400A, 3500A, 3514, 4500, 500C, TD7, 250A

Replaces Part Number(s):

3139594R91, 671510C91

Aftermarket Interchange Numbers

Sparex S.57633; Minneapolis Moline G907224; White 30-3090264; Case IH 674309C92

New aftermarket replacement part - not remanufactured, not used.