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    Top Hat Bush Kit (Including 4228549 Bush) to suit Hitachi EX3500 and EX3600 Excavators

    Top Hat Bush Kit (Including 4228549 Bush) to suit Hitachi EX3500 and EX3600 Excavators

    Stick

    OEM Ref: Contains 4228549 EP Bush Geo Ref: 11541640

    An EP MOD part is a Geographe Enhanced Performance™ part that may also require the machine to be modified for correct installation.

    Geographe Enhanced Performance™ (EP) parts are specifically engineered to solve common challenges mine sites face, optimising the performance, durability, and efficiency of machinery used in mining operations.

    Enhanced Performance parts incorporate advanced materials, innovative designs, and rigorous testing by enhancing the current design, offering superior resistance to wear, corrosion, and impact, resulting in extended service life and reduced downtime to achieve operational excellence.

    The Geographe Enhanced Performance (EP) Top Hat Bush Kit (inlcuding 4228549 bush) is engineered for the boom-to-frame connection on Hitachi EX3500 and EX3600 excavators. Standard OEM bushes and thrust plates in this location are prone to premature wear, which can lead to excessive movement, misalignment, and damage to mounting faces. Geographe’s EP design integrates the bushing and thrust plate into a single, more robust component. Manufactured using advanced materials and gas carburisation heat treatment, the Top Hat Bush maintains OEM tolerance for longer, minimising wear and reducing downtime. This design improvement extends service life under dynamic mining loads, helping keep excavation systems operating reliably.
    Reduces maintenance downtime and labour costs through faster installation Improves grease distribution for extended component wear life One-piece construction resists movement under dynamic load conditions
    • Tick iconImproved safety
    • Tick iconReduced labour costs
    • Tick iconIncreased productivity

    Technical information

    OEM Part RefContains 4228549 EP Bush
    Component TypeEnhanced Modified Part
    Improvement FactorsImproved safety; Reduced labour costs; Increased productivity
    Geographe Ref11541640
    OEMHitachi
    Machine TypeExcavators
    Product TypeMobile Fleet Parts
    Machine ModelHitachi Excavator EX3500, Hitachi Excavator EX3600
    Product BrochureDownload Brochure

    Product Contents & Details

    Kit Contents

    4 x Stick to Boom Bush (OEM Ref 4228549 EP) - 11532573 4 x Stick to Link Bush (OEM Ref 4228550 EP) - 11527123 2 x Spacer Pipe (OEM Ref 4228551) - 11535595 4 x Top Hat Bush (OEM Ref 4288245 EPMOD) - 11541327 2 x Stick Bush Spacer (OEM Ref 4397526 EP) - 11527126 4 x Dust Seal (OEM Ref 4194029) - 11535238 4 x Dust Seal (OEM Ref 4143624) - 11477379 4 x Lip Seal (OEM Ref 4175469 MOD) - 11541374 2 x Grease Fitting (OEM Ref J75481) - 11537011 2 x Cap (OEM Ref 4105912) - 11537012 2 x Collar (OEM Ref 4130686) - 11537013 2 x Boom Pin Spacer Ring (OEM Ref 4194038) - 11539569 4 x O-Ring (OEM Ref A811300) - 11537700 24 x M20 Hex Head Bolt (OEM Ref J932055) - 11539928 28 x Spring Washer (OEM Ref A590920) - 11537010 4 x O-Ring (OEM Ref 4485896) - 11538688 2 x Ring Spacer Plate (OEM Ref 4236330) - 11539879 2 x Link to Boom Cylinder Pin Spacer (OEM Ref 4195377) - 11537925 2 x Boom Cylinder Pin Locking Plate (OEM Ref 9726226) - 11537926 4 x M24 Hex Head Bolt (OEM Ref J932455) - 11537929 2 x Spacer (OEM Ref 4236329) - 11539875 2 x Locking Plate (OEM Ref 4179432) - 11538477 4 x M20 Hex Head Bolt (OEM Ref J932045) - 11537021 2 x 0.25 BSPT Plug (OEM Ref 942011) - 11539909 8 x Cork (OEM Ref 425176) - 11537008

    When equipment failure is not an option, partner with us.

    From existing products available for all type of OEM Mining Equipment to solving your unique challenges through custom design and trials, we can help.
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