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Products information： 1）Bucket body material: Q355 / Q460 + NM400 / NM 500/HARDOX500; 2）Attachments: rock teeth, adapters, side cutters/wing protectors, lip protectors, side wearing plates, back wearing bars; 3）Outstanding Feature：customized design & color; 4）Package: packed in strong pallets; 5）Working Condition: suitable for heavier working conditions in rocky types of soil and demolition works. It's wear-resistant for rocky works.
Our Long wear parts@ supply a full range of Caterpillar/CAT excavator bucket types,including Caterpillar/CAT dirt buckets , Caterpillar/CAT standard digging buckets,Caterpillar/CAT heavy-duty rock buckets, Caterpillar/CAT reinforced mining buckets, Caterpillar/CAT dredging buckets, Caterpillar/CAT skeleton screening buckets and Caterpillar/CAT tilt buckets.All products comply with international industry standards, with reliable quality and stable performance.
Thickened rib reinforcement structure prevents bucket deformation and welding cracks under heavy impact and overload. Strict 1:1 OEM dimensional production, perfectly mounted on mainstream brand excavators and loaders without modification.Automatic robotic full penetration welding ensures seamless welds and excellent structural stability.
In rock quarries and demolition sites, buckets face constant shock loading from falling boulders and hydraulic hammering. Our buckets are fabricated with double-walled construction at stress points (heel and side plate junctions) and reinforced with ribbed gussets. All critical welds are performed by certified welders and undergo non-destructive testing (NDT) to guarantee zero porosity or cracking. We also offer a full-wrap heel guard that deflects impact energy away from the bucket’s back plate—a common failure point in competitor products.
Whether you choose our OEM-spec line or our performance aftermarket series, every bucket carries a 12-month structural warranty against manufacturing defects in material and workmanship. We provide full traceability—from steel mill certificates (EN 10204 3.1) to welding procedure specifications (WPS). Using genuine OEM-designed buckets from our factory also helps you avoid potential warranty disputes with your machine’s original manufacturer, as we strictly follow SAE and ISO dimensional standards for all pin-to-pin distances and mounting interfaces.
Send us your excavator model or OEM part number, we will recommend the matched bucket for you quickly.China Long wear parts@ is your best choice for replacing after-market buckets .
Equipment type
Bucket Model
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 340 Bucket
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 345 Bucket
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 350 Bucket
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 352 Bucket
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 355 Bucket
Caterpillar Tracked excavator - Large/Mining excavator
Cat/Caterpillar 374 Bucket
Preparation Tools
Pin shaft, cotter pin, hammer, pry bar, grease gun
Step 1
Park the excavator on flat solid ground, lower the stick arm to let the old bucket fully touch the ground, turn off the engine and release residual hydraulic pressure of boom.
Step 2
Knock out cotter pins on two connecting pins (bucket-stick arm & bucket-cylinder) with a hammer, push out two main pins by pry bar and remove the old bucket safely.
Step 3
Horizontally hoist the new bucket, align pin holes of bucket lugs with pin holes of stick arm and bucket cylinder, keep pin holes concentric.
Step 4
Install the upper pin (connect bucket cylinder & bucket ear) first, assemble cotter pin to lock the pin to prevent slipping.
Step 5
Install the lower main pin (connect stick arm & bucket lug), fit cotter pin for locking and fixing.
Step 6
Inject grease into grease nozzles of two pin shafts with a grease gun until clean grease extrudes from the gap between pin and lug.
Step 7
Start the excavator slowly, lift & lower the bucket repeatedly to test rotation flexibility, begin construction if no jamming occurs.
Important Notes
1. Never start the engine when your body is between stick arm and bucket to prevent clamping injury.2. Cotter pins must be fully installed; missing cotter pins may cause pin falling off and bucket dropping.3. Refill grease for pin shafts every 8 working hours to extend service life.
Contact: Zoe Shi
Phone: +86-19700710133
Tel: +86-19700710133
Email: order@longwearparts.com
Add: Beilun District, Ningbo, China
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