Product Description 2R-0239 is an aftermarket NBR O-ring replacement referenced by Caterpillar as a 278.99 mm inside-diameter seal. Its listed cross-section is 3.53 mm (0.139 in), with a 75A nitrile material designation and a Dash Size 276 reference. This is an individual O-ring, not a hydraulic cylinder seal kit. It...

Product Description The 7X-2730 Lift Cylinder Seal Kit is an aftermarket replacement for Caterpillar 980C wheel loaders and R1600/R1600G load-haul-dump machines, not a wheel-dozer kit. Hydraulic catalogs identify lift-cylinder use; 980C references include 9J-5559 and 1U-3527, including a deeper-dig configuration. The catalog size is a 3-1/2-inch rod with a 7-1/2-inch...

Product Description The 606-6124 aftermarket bucket cylinder seal kit is designed for selected Caterpillar-compatible heavy equipment hydraulic repair applications. It supports the resealing of a compatible bucket or loader cylinder during overhaul when worn seals contribute to hydraulic oil leakage, rod-side contamination, or reduced pressure retention. Correct identification is essential...

Product Description The 501-6692 Hydraulic Cylinder Seal Kit is an aftermarket standard-size reseal kit for selected Caterpillar backhoe loaders, excavators, wheeled excavators, and wheel loaders. Official fitment covers 422, 427, 428, 432, 434, 444, and 450 backhoe-loader families; 311F, 313F, 316F, 320E, 320MHPU, and M314 excavators; and 924, 926, and...

Product Description 308-1838 is an aftermarket hydraulic manifold relief-valve seal kit reference for compatible Caterpillar equipment. Official data identifies O-rings and split back-up rings for servicing the manifold relief valve group. It is a control valve kit, not a hydraulic cylinder, travel motor, or transmission repair kit. The same machine...

Product Description Maintain precise control and peak responsiveness on your equipment with our premium aftermarket 178-7189 steering cylinder seal kit, engineered specifically for Caterpillar backhoe loaders. This high-grade repair kit includes all essential components—such as oil seals, dust wipers, U-cups, buffer seals, and wear bands—tailored to fit the 36mm rod...

Product Description Searching for a high-performance aftermarket 465-6256 hydraulic cylinder seal kit for your heavy excavation machinery? Specially engineered for severe mining environments, this repair seal kit effectively prevents internal fluid bypass, preserves hydraulic pressure, and blocks abrasive contaminants from damaging cylinder walls. Essential for sustaining optimal digging force and equipment...

Product Description Restore the lifting power of your machinery with the 397-9883 Lift Cylinder Seal Kit, specifically engineered for the Caterpillar 950GC Wheel Loader. This comprehensive aftermarket kit includes high-grade rod seals, piston seals, and wear rings designed to withstand the high-pressure demands of heavy-duty loading cycles. At Ruijueparts, we...

Product Description Restore the hydraulic integrity of your heavy machinery with the high-grade 244-2050 Tilt Cylinder Seal Kit from Ruijueparts. Designed for Caterpillar’s heavy-duty applications, this 9-piece kit is engineered to withstand high-pressure environments, preventing fluid bypass and protecting your equipment from contamination. This kit features a 6.50" (165.1 mm)...

Product Description The 7X-2703 Tilt Cylinder Seal Kit is an aftermarket replacement for selected Caterpillar wheel loaders. Cross-checked hydraulic catalogs list 966, 966D, 966E, 966F, and 970F and associate this kit with tilt cylinder group 3G-5497. Catalog dimensions are a 3-1/4-inch rod and 8-1/4-inch bore. The official page names it...

Product Description 170-0493 is an aftermarket replacement accumulator seal kit for selected Caterpillar hydraulic accumulator applications. Caterpillar identifies it as a standard 4-inch-bore piston seal kit, not a hydraulic-cylinder, pump, motor, or transmission repair kit. Hydraulic accumulators store and release pressurized oil to support system response, making correct part-number matching...

Product Description 258-0500 is an aftermarket replacement stick cylinder seal kit for selected Caterpillar wheeled excavators and material-handling machines. The reference kit is designed for a 120 mm cylinder-bore assembly and includes matched sealing, guiding and backup components for resealing the applicable cylinder group. Compatibility is configuration-specific: one machine may...

Product Description 4P-9943 is an aftermarket EPDM rubber radiator end-tank seal for selected Caterpillar cooling-system assemblies. Also identified as a radiator fan-side end-tank seal, this 121 mm × 140 mm × 22.5 mm component is used during radiator service to seal the designated end-tank connection. It is not a hydraulic...

Product Description 281-8870 is an aftermarket replacement transmission gasket kit for selected Caterpillar motor graders and a CS-583C vibratory compactor. It is intended for transmission overhaul work, helping technicians renew the gaskets, seals, and O-rings used across applicable transmission assemblies. This is not a hydraulic cylinder seal kit; correct identification...

Product Description 487-6170 is an aftermarket hydraulic piston pump seal kit reference for compatible Caterpillar wheel loaders and D7 track-type tractors. It services the hydraulic pump assembly that produces oil flow for the hydraulic circuit; it is not a piston motor, cylinder, or control-valve kit. Official fitment lists models, but...

Product Description 4P-9942 is an aftermarket EPDM rubber radiator end-tank seal for selected Caterpillar cooling-system assemblies. With a 22.5 mm thickness, this reference is used during radiator repair to seal the specified joint between the radiator core and end tank, helping service teams address coolant leakage at the cooling-unit connection....

Product Description Optimize your machinery's efficiency with our premium aftermarket 319-3557 hydraulic seal kit, engineered to fit Caterpillar equipment flawlessly. Designed for high-pressure hydraulic systems, this kit utilizes top-tier, wear-resistant fluororubber and polyurethane materials. It effectively prevents oil leakage, blocks contaminants, and maintains systemic pressure under harsh operating conditions. As...

Product Description The 416-1228 aftermarket tilt cylinder seal kit is referenced for Caterpillar-compatible 992K wheel loader hydraulic cylinder service. It is a standard-size kit intended for a cylinder bore within the applicable nominal service limit; the OEM reference states a maximum 0.25 mm (0.010 in) bore sizing condition. The reference...

Product Description 233-9204 is an aftermarket hydraulic blade tip cylinder seal kit for selected Caterpillar motor graders. Published hydraulic-kit catalogues cross-reference it to blade tip cylinder group 131-7191, with a 1.50 in rod and 2.75 in bore. On a grader, this cylinder adjusts blade-tip position; it is not a blade...

Product Description RuijueParts offers the high-performance 233-2623 Stabilizer Cylinder Seal Kit, engineered to resolve hydraulic leaks and pressure loss in Caterpillar backhoe loaders. Manufactured from premium, wear-resistant materials, this kit ensures exceptional sealing integrity under extreme job site conditions. As a leading aftermarket specialist, we understand that downtime is costly....

Product Description 8T-1374 is an aftermarket hydraulic cylinder seal kit for selected older Caterpillar equipment using a 2.50 in rod and 5.50 in bore reference. It is a dimensional and cylinder-group kit, not a kit dedicated to only one machine function. Published catalogues reference it for ripper cylinders on D4D,...

Product Description 8G-4190 is an aftermarket equalizer bar seal for selected Caterpillar tracked equipment. Also called an E-bar seal, it is installed at equalizer bar end-pin or center-pin joints to retain grease while the undercarriage oscillates and to help exclude dirt and moisture. It is a single undercarriage sealing component,...

Product Description The 7X-2701 Hydraulic Cylinder Seal Kit is an aftermarket replacement for selected Caterpillar 980-series wheel loaders. Cross-checked catalogs list 980C, 980F, and 980F II and show both high-lift and tilt-cylinder applications. Documented cylinder references include 4T-6791, 4T-7949, 9T-2418, and 9T-2419. Catalog size is a 3-inch rod with a...

Product Description The 437-3547 Bucket Tilt Cylinder Seal Kit is an aftermarket reseal kit for the front loader bucket tilt cylinder on selected Caterpillar backhoe loaders. Official fitment includes 434, 434F, 434F2, 444, 444F, and 444F2. Supporting cross-reference data indicates a 63.5 mm rod and 135 mm bore; confirm these...