Cylinder Group 225-4526/358-8461/370-6692/513-3691

Excavator Caterpillar 345B II, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L

Stick Cylinder Bore 190,00 Stroke 1.758,00 Hydraulic Cylinder

2254526/3588461/3706692/5133691

640 kg

Compatible Brand: Caterpillar

Part Number: 513-3691 (5133691)

Superseded / Interchange Numbers: 225-4526 (2254526), 358-8461 (3588461), 370-6692 (3706692)

Part Name: Stick / Arm Hydraulic Cylinder Group

Technical Specifications: Bore: 190.00 mm / Stroke: 1,758.00 mm / Weight: ~640 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Track Excavators (345B II, 345C, 345D, 349D series)

What It Does:

Serves as the primary stick hydraulic actuator mounted between the boom and the bucket linkage on Caterpillar 345 and 349 series hydraulic excavators. Powered by high-pressure hydraulic fluid, it extends and retracts the stick (arm) to control reach, digging depth, and material crowding.

Importance:

Essential for generating digging breakout force and maintaining smooth operator control during heavy mining, quarrying, and excavation applications. Featuring a robust 640 kg heavy-walled barrel and high-strength forged rod, it is engineered to withstand extreme torsional loads and structural bending, while high-grade seal technology prevents internal hydraulic bypass under continuous load.

As Seçkin Makine, we manufacture this product as an aftermarket item fully equivalent to the original specifications in terms of raw materials, technical dimensions, and performance characteristics. This product comes with a 1-year warranty from the invoice date.