130904000043B003 Left box frame Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

130904000043B003 Left box frame Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The 130904000043B003 left box frame is a core load-bearing component of the left box of the original factory customized cab. It is compatible with various engineering machinery cabs and is used for the overall support, structural fixation and protection of internal components of the left box. It also has the functions of load-bearing stability, impact and vibration resistance, deformation prevention and positioning limit. It is suitable for bumpy operations in mines and construction sites, preventing the left box from deforming, collapsing and loosening, providing solid support for the items and electrical components inside the box, ensuring the structural integrity of the left box and improving the operational stability of the cab components.
This product is an original factory compatible part, precisely matching the left side box of the cab of Sany, XCMG, Caterpillar and other series of construction machinery. It adopts CNC precision machining, welding and surface anti-corrosion treatment process, and is compatible with the original left side box installation position and interior layout. It can be quickly installed without complicated adjustment, and can withstand bumpy, high and low temperature and dusty and oily working conditions. The structure is stable and there is no twisting or deformation.

【Core Technical Parameters】

-Product Model: 130904000043B003
– Product Type: Left Box Frame (Original Equipment Manufacturer, Dedicated Load-Bearing Support Frame for Construction Machinery Cab)
– Compatible models: Cabs of Sany, XCMG, Caterpillar, and other series of construction machinery; suitable for left-side support mounting on loader, excavator, and other cabs.
-Material: High-strength cold-rolled steel sheet (Q235B or SPFC980 optional), precision machined by CNC, welded, and electrophoretic anti-corrosion treated, reinforced with angle steel, tensile strength ≥520MPa, hardness HRC28-32, flatness ≤0.3mm
-Operating temperature range: -30°C to +80°C (Structural stability under extreme temperatures, no reduction in load-bearing capacity, no brittleness, no aging, and no deformation)
– Structural Specifications: Integrated frame structure, including the main skeleton, reinforcing angle steel, stiffeners, positioning clips, and mounting holes. The welds at the joints are full and complete, providing load-bearing support, positioning, and protective reinforcement. It fits precisely to the internal layout of the left box, ensuring accurate squareness.
– Dimensions: Precisely fits the original left housing; length, width, height, and mounting hole spacing match the housing dimensions perfectly. It perfectly matches the inner wall of the left housing and the installation position. Dimensional tolerance is IT7-IT8 grade, with a diagonal deviation ≤1mm, conforming to QJ/GAC 1240.046-2014 requirements.
-Installation method: Bolt fixing + welding assistance, compatible with original factory mounting holes. Before installation, remove burrs and dirt from the mounting surface. Convenient and quick replacement. After installation, it is stable without shaking or twisting, and the splicing is tight.
– Protective properties: Waterproof, dustproof, and oil-proof; surface electrophoretic anti-corrosion treatment; salt spray resistance ≥500 hours; wear-resistant, aging-resistant, and UV-resistant; not easily rusted or deformed; welds are well-sealed; effectively resists dusty and oily working conditions.
-Service life: ≥4 years under normal working conditions, ≥2 years under harsh working conditions; no deformation or cracking after load-bearing fatigue testing; static load capacity ≥500N; can withstand 15 impacts of a 147m/s² half-sine wave without significant deformation.

Whether in bumpy environments, dusty mines, or extreme temperature conditions, this product consistently delivers stable load-bearing support and protection, ensuring the integrity, stability, and freedom of deformation of the left-side box structure. It provides robust protection for internal items and components, reducing maintenance costs. Original factory compatible and traceable with a unique code, this is a high-quality genuine part for left-side box frame repair and replacement, and for bulk stocking.

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1 130904000043B008 FSX400Alogo
2 130904000043B001 Upper left box
3 130904000044B002 Right side panel
4 130904000043B002 Left side box leather pad
5 130904000044B007 front box
6 130904000043B006 Armrest box 500 rotating pin
7 130904000066A005 Spring
8 130904000043B005 Switch
9 130904000044B003 Screw assembly
10 130904000044B001 Barbed fastener
11 130904000043B009 Handle 04 Cover
12 130904000043B013 Handle 03 Screw Cap
13 130904000043B011 Handle 03 Yellow Bar
14 130904000043B012 Pan head screw
15 130904000043B010 Hexagonal flange face lock nut
16 130904000043B014 Shaft elastic washer
17 130904000043B004 Combination Screw
18 130904000043B003 Left box frame
19 130904000043B007 Left side panel of the left box
20 130904000044B004 Barbed fastener

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