CATEngine Parts

4i-0704 Bucket Cylinder Linkage Bushing — Cat 318B 320

This bucket cylinder linkage bushing is a wear component designed to reduce friction and wear between mating linkage components in the excavator's bucket system. Manufactured to meet stringent OEM standards, it provides a durable bearing surface, unlike a worn bushing that can lead to excessive play and imprecise bucket control. Operators may notice increased sloppiness in bucket movement, difficulty holding position, or audible clunking noises when the linkage is under load.

Bucket Cylinder Linkage Bushing – Part No 4i-0704 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

const P = { partNo:'4i-0704', name:'Bucket Cylinder Linkage Bushing', brand:'CAT', brandSlug:'cat', category:'Engine Parts', catSlug:'engine-parts', condition:'OEM Aftermarket', description:'This bucket cylinder linkage bushing is a wear component designed to reduce friction and wear between mating linkage components in the excavator\'s bucket system. Manufactured to meet stringent OEM standards, it provides a durable bearing surface, unlike a worn bushing that can lead to excessive play and imprecise bucket control. Operators may notice increased sloppiness in bucket movement, difficulty holding position, or audible clunking noises when the linkage is under load.', xref:['4i-0704'], models:["CAT", "Excavator", "318B", "320", "322B", "325", "325B", "330B", "M320", "M322C", "M322D"], specs:[{key:'Part No',val:'4i-0704'},{key:'Brand',val:'CAT'},{key:'Category',val:'Engine Parts'},{key:'Condition',val:'Aftermarket — OEM Specification'},{key:'Dispatch',val:'Same-day from Mumbai (before 3 PM IST)'},{key:'GST Invoice',val:'Available — all orders'},{key:'Export Docs',val:'Commercial invoice, packing list, COO'}], relatedParts:[{"partNo": "1099368", "name": "Engine Parts Component", "slug": "1099368"}, {"partNo": "170-9827", "name": "Bucket Cylinder Seal Kit", "slug": "170-9827"}, {"partNo": "4C4784", "name": "D\\", "slug": "4C4784"}, {"partNo": "4d-2287", "name": "Brake Valve", "slug": "4d-2287"}, {"partNo": "285-1975", "name": "Wiring Harness", "slug": "285-1975"}, {"partNo": "7e-9798", "name": "Radiator", "slug": "7e-9798"}], reviews:[{name:'Vikram Singh',loc:'Delhi, India',rating:5,text:'CAT part arrived fast. OEM specification, fits perfectly in my 320D. Highly recommend PTC.'},{name:'Ibrahim Al Rashid',loc:'Dubai, UAE',rating:5,text:'Great service and fast shipping to UAE. The CAT part was exactly as described. Very reliable supplier.'},{name:'Pradeep Sharma',loc:'Nagpur, Maharashtra, India',rating:4,text:'Quick response, good quality. Team confirmed compatibility before dispatch which I appreciated.'}], faq:[{q:'What is the purpose of a bushing in excavator linkage?',a:'The bushing acts as a low-friction bearing surface, allowing for smooth articulation of linkage components while protecting the pins and bores from wear.'},{q:'How can I be sure that part 4i-0704 fits my CAT 320B excavator?',a:'Confirm the part number against your machine\'s parts manual and ensure the serial number falls within the specified range for this component.'},{q:'What is the expected lifespan of this CAT linkage bushing?',a:'Service life varies greatly with operating conditions, but it is designed to meet OEM durability standards for typical heavy-duty use.'},{q:'Should I replace more than one bushing at a time?',a:'It is generally recommended to replace all bushings within a specific linkage joint simultaneously to ensure even wear and proper alignment.'}], categoryDesc:'CAT Engine Parts from Parts Trading Company cover the full range of CAT equipment. We supply OEM-specification aftermarket engine parts sourced from certified manufacturers. PTC has supplied CAT engine parts to customers across India, UAE, Russia, Indonesia, and Africa since 1956. Our Mumbai warehouse stocks high-turnover CAT engine parts for same-day dispatch before 3 PM IST.', aiSpecs:[{"key": "Part Type", "val": "Bushing"}, {"key": "Material", "val": "Bronze or Steel Alloy"}, {"key": "Application", "val": "Bucket Cylinder Linkage"}, {"key": "Service Life", "val": "Replace based on inspection and wear"}, {"key": "Compatibility", "val": "OEM specification"}, {"key": "Condition", "val": "New \u2014 OEM specification aftermarket"}],};script src="/assets/js/product-page.js">

Related CAT Parts

From the same category — may also be needed

1099368
Engine Parts Component
170-9827
Bucket Cylinder Seal Kit
4C4784
D\
4d-2287
Brake Valve
285-1975
Wiring Harness
7e-9798
Radiator

Browse all CAT Engine Parts →

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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeBushing
MaterialBronze or Steel Alloy
ApplicationBucket Cylinder Linkage
Service LifeReplace based on inspection and wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a worn bushing include increased play or looseness in the bucket and arm operation. If left unaddressed, this wear will accelerate, leading to imprecise control, potential damage to adjacent components, and difficulty maintaining the desired bucket position.

Installation Tip

Thoroughly clean the pin and the bore where the bushing will be installed to ensure a proper fit. Avoid using excessive force or hammering the bushing into place, which can distort its shape or damage the linkage.

Service Note

Inspect the corresponding pin and the surrounding linkage components for wear or damage when replacing the bushing.