MEASURE
THE MACHINE.
BUILD THE FIT.

Excavator Attachment Fitment

Use this guide for standard pin-on excavator attachments. Keep the pin holes visible and measure from the actual machined surfaces.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

INFORMATION TO RECORD

• Pin centers between the main pin and power link pin
• Inside ear width
• Pin diameters — record main pin and power link pin separately

Trapezoid Bucket Measurement Guide

Use the translucent isometric bucket view to identify bottom width A, top width B and body height C. Measure body height vertically, excluding mounting ears, rather than along the sloped side. Overall depth is based on excavator weight class. Custom job-specific slopes are possible; call East Attachments at (336) 829-5016 to discuss your project and confirm the required profile before ordering.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

PROFILE MEASUREMENTS & ORDERING DETAILS

• Record bottom width A, top width B and body height C using consistent units.
• Provide the machine make and model, operating weight, and coupler type or direct pin-on arrangement.
• Use the Excavator Attachment Fitment guide for pin centers, inside ear width and pin diameters when applicable.
• Describe the required trench or ditch profile, material and application; specify your tooth preference and confirm overall depth.
• Call East Attachments before ordering to discuss any custom job-specific slope.

Severe-Duty Heel Shrouds & Bucket Wear Protection

Identify heel shrouds along the bucket’s lower outside corners, underside wear strips, lip protection between tooth adapters, and the teeth and adapters. Sacrificial wear material helps protect the bucket shell from abrasion; timely wear-part maintenance can help extend service life and limit structural repairs. The illustrated bucket is an example for a 70,000+ lb excavator, not a bucket-weight specification.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

WEAR PROTECTION & ORDERING DETAILS

• Ask about heel shrouds and additional wear upgrades before ordering a bucket that needs extra protection.
• Discuss wear strips or runners, shell liners, lip and sidebar protection, and tooth options; recommendations and availability depend on the bucket and application.
• Provide machine make and model, operating weight, bucket width, material and intended application.
• Include photos of existing wear to help identify the areas that need additional protection.

Excavator Hookup Plate Design Showcase

Explore a machine-specific hookup mounting plate for retrofitting custom attachments, changing an existing attachment to suit another excavator, or adapting a hammer plate or auger bracket. This example shows paired mounting ears, machined bosses, reinforcing gussets and an attachment-side mounting plate. Weld-on and bolt-on configurations are available. The illustrated dimensions describe one build and do not establish compatibility with another machine. Pins are sold separately.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

EXAMPLE DIMENSIONS & INQUIRY DETAILS

• Example mounting geometry: 18.25 in pin centers; 11.25 in clear ear spacing; Ø5.00 in bosses and Ø2.76 in bores at both ends.
• Example pin: 16.00 in long × 2.75 in diameter; Ø0.56 in cross hole with its center 0.63 in from the end.
• Boss/collar detail: 5.00 × 2.00 in with Ø0.56 in hole. Source specifies 4 bosses, 2 locking collars and 2 ear plates, 3/4 in thick, marked ‘572’.
• Before inquiry: current attachment, new excavator make/model, coupler details, pin diameters, pin centers, inside ear spacing and weld-on or bolt-on preference.
• For hammer plates and augers: provide the mounting pattern, attachment specifications and hydraulic requirements. The plate adapts the mechanical interface; hydraulic compatibility and structural suitability must be confirmed separately.

Standard Kubota Quick Hitch Hookup Guide

Identify the attachment-side Kubota-style quick hitch adapter with a translucent CAD illustration of its locking pin bores, pickup hooks, mounting base and side plates. Mounts vary by machine model and coupler; standard does not mean universal. Confirm the actual mating interface before ordering.

WHAT TO SEND FOR A FITMENT CHECK

• Send the Kubota machine model and serial number, plus the coupler manufacturer, model and part number if available.
• Identify mechanical or hydraulic operation; provide clear front, side and underside photos of the coupler and existing attachment mount.
• Provide the attachment type and intended use. Record actual measurements in millimeters when requested.
• Confirm hook profile, locking-pin bore diameter, inside plate spacing, plate thickness, hook-seat to bore-center position, base bolt pattern and clearance against the actual mating coupler.

John Deere Wedge Hookup Guide

Identify the attachment-side lugging shown in this John Deere wedge-style hookup guide. The translucent CAD illustration highlights pickup notches, rear locking profiles, lug spacing and the bucket header. Confirm the actual mating coupler rather than relying on machine branding or generic dimensions.

WHAT TO SEND FOR A FITMENT CHECK

• Send the John Deere machine model and serial number, plus the coupler manufacturer, model and part number if available.
• Identify mechanical or hydraulic operation; provide clear front, side and underside photos of the coupler and existing attachment lugging.
• Provide the attachment type and intended use. Record actual measurements in millimeters when requested.
• Confirm pickup-notch profile, clear lug spacing, plate thickness, pickup-seat to rear-contact position, mounting footprint and clearance against the actual mating coupler.

TAG / Wain-Roy Style Hookup Guide

Identify an attachment-side TAG / Wain-Roy style hookup using the front pickup tube, open receiver pocket, locking-pin lug and mounting footprint. The translucent CAD illustration shows the hookup only. Published excavator weight bands help narrow the interface family, but overlapping ranges mean machine weight alone does not establish compatibility.

IDENTIFY & MEASURE THE INTERFACE

• Identify the coupler make, model, serial tag and Original, XLS or TAG variant; provide machine make/model, operating weight and mating-interface photos.
• Measure the front pickup tube outside diameter and engagement width, receiver opening and depth, plate thicknesses, and mounting footprint.
• Confirm locking-pin diameter, bore, pin length, retention method and pickup-to-locking-bore position. The pickup tube is not the locking pin.
• Reference locking-pin diameters include 1¼, 1½, 1¾, 2½ and 3 inches. Confirm the actual coupler and mating geometry before fabrication; the photographed size class is unconfirmed.

Bobcat Quick X-Change Hookup Guide

Identify an attachment-side X-Change style mount using its pickup hooks, locking-pin bores, side plates and mounting base. This translucent CAD guide explains what to send for a fitment check without relying on generic example dimensions. Confirm the exact machine and mating coupler before fabrication.

WHAT TO SEND FOR A FITMENT CHECK

• Send the Bobcat machine model and serial number, plus the coupler model or part number if available.
• Identify mechanical or hydraulic X-Change; send clear front, side and underside photos of the coupler and existing mount if unsure.
• Provide the attachment type and intended use. Record actual measurements in millimeters when requested.
• Confirm hook profile and engagement, clear inside spacing, locking-pin diameter and bore alignment, mounting footprint and clearance against the actual mating coupler.

How Our Coupler Works

A four-step illustrated overview of attaching and locking the manual quick coupler. Follow the instructions supplied with your coupler and confirm both attachment pins are captured and the locking pin is secured before operation.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

ATTACH & LOCK

• Prepare and align
• Rotate into place
• Capture rear pin
• Insert and secure the locking pin

Pin-On Thumb Measurements

A pin-on thumb requires detailed bucket, stick, collar and pin information so the thumb and required extended-length pin can be built around the machine.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

INFORMATION TO RECORD

• Cross hole diameter and cross hole position
• Locking collar width and outside-to-outside of bushings
• Pin diameter and whether the pin is grease-able
• Center of pin to stick face and top of bucket
• Center of pin to teeth tip
• Edge of stick to end of link assembly and stick width
• Bucket width and number of teeth

Pin-On Thumb Assembly & Alignment

Reference assembly and bucket-to-thumb alignment for a 35–50 US ton (70,000–100,000 lb) machine and 54-inch bucket. Machine examples include Cat 336, Komatsu PC360LC-11, John Deere 350 P-Tier and Volvo EC350E. These indicate size class only; weights vary by configuration and all fitment must be confirmed.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

ASSEMBLY & ALIGNMENT REFERENCES

• 54-inch bucket and 33-inch thumb reference widths
• Side-view pivot, bucket and bracket reference dimensions

Pin-On Thumb Component Details

Companion component sheet for the illustrated 35–50 US ton pin-on thumb build. Review the hydraulic cylinder, thumb, main pin and collar details alongside the assembly sheet. Reference dimensions are not universal specifications; confirm the machine-specific build with East Attachments.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

COMPONENT REFERENCES

• Hydraulic cylinder extended and retracted reference lengths
• Thumb side profile, front spacing and connection details
• Main pin and collar reference dimensions

Progressive Link Thumb Guide

Now available to inquire: Progressive Link Thumb. The illustrated build is based on an 8–12 US ton machine (16,000–24,000 lb; approximately 7.3–10.9 metric tonnes). Machine-size examples include Cat 308 CR, John Deere 85 P-Tier, Komatsu PC88MR-11 and Kubota KX080-5; these are not guarantees of fitment.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

DESIGN FEATURES & FITMENT

• Greater travel than a conventional no-link hydraulic thumb
• Pickup farther out and access closer to the machine
• Follow more bucket curl and use more placement angles
• Hydraulic adjustment from the cab instead of manual brace repositioning; also available on other hydraulic thumbs
• Confirm final linkage travel, hydraulic requirements and machine-specific fitment

Weld-On Thumb Selection

Use this guide for weld-on manual and weld-on hydraulic thumbs. Position the bucket teeth at 90 degrees from the stick before taking Dimension 1.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

INFORMATION TO RECORD

• Dimension 1: distance from the stick to the bucket tooth
• Dimension 2: flat width of the stick, excluding sides and weld
• Note plates, obstructions or non-flat areas welded to the measured side

Weld-On Thumb Installation

Companion installation reference for weld-on thumbs, showing the stowed thumb, fully curled bucket and 1-inch clearance. Confirm the requirements for your excavator and thumb with East Attachments; qualified personnel should complete welding and hydraulic setup.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

INSTALLATION OVERVIEW

• Retract the thumb, curl the bucket fully inward and establish clearance
• Prepare battery isolation and mounting surfaces before welding
• Follow the approved welding procedure and verify thumb-specific hydraulic pressure requirements

How to Measure Your Dozer Blade

Measure the full blade width at the bottom, from outer edge to outer edge. For blade height, measure 18 inches inward from the outer bottom edge, then measure vertically from the bottom cutting edge to the top of the blade. Supply the dozer make and model with your measurements.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

MEASURE & RECORD

• Full blade width at the bottom
• Blade height measured 18 inches inward from the outer bottom edge
• Dozer make and model; confirm fitment before fabrication

Dozer Rake Measurement Guide

Record the blade width and height, dozer make and model, and any U-blade, GPS towers or existing brackets. Mounting brackets and pins are included with every dozer rake order. Greater penetration and thicker teeth are options for operators planning for larger unforeseen obstacles on the jobsite. Select the configuration to suit the dozer and intended work. U-blade-compatible builds are available with machine-specific fitment confirmation. Optional tree spear and dozer rake guard upgrades are available; request either or both with your inquiry.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

AVAILABLE CONFIGURATIONS

• 5 × 5-inch square tubing — 14-inch penetration — 1.25-inch teeth
• 6 × 6-inch square tubing — 18-inch penetration — 1.5-inch teeth
• 6 × 6-inch square tubing — 22-inch penetration — 2-inch teeth
• U-blade-compatible builds: provide blade profile photos, measurements and mounting details for confirmation
• Optional tree spear and optional dozer rake guard (dirt guard); specify either or both

Wheel Loader Attachment Measurement Guide

Record the six hookup measurements for the illustrated direct pin-on arrangement. Provide your loader make and model, measurement units, and clear rear and side hookup photos. Measure the actual attachment configuration; quick-coupler interfaces require a separate fitment check. Establish cubic yardage before inquiring about a bucket.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

MEASUREMENTS TO PROVIDE

• Upper / center ear pair — clear inside width
• Lower / outside ear pairs — clear inside width, left and right separately
• Lower ear-pair spacing — pair center to pair center
• Upper-to-lower pin bore spacing — center to center
• Upper / center pin hole — diameter
• Lower / outside pin holes — diameters, left and right separately

Wheel Loader Bucket Guide

Establish the cubic yardage you need before inquiring. East Attachments offers 1–9 cubic yard loader buckets with a bolt-on cutting edge or replaceable teeth. Provide the loader make and model, hookup dimensions, preferred edge option and material to be handled; capacity must suit the material weight and loader rating.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

COMMON APPLICATIONS

• Load loose soil, sand or gravel into trucks and trailers
• Transfer bulk material over short distances and organize stockpiles
• Handle farm and landscaping materials with a suitable bucket
• Collect loose material and place backfill

Wheel Loader Pin-On Rake Guide

Establish the necessary rake width before inquiring. Tine thickness is available up to 3 inches, with serrated tines offered as an upgrade. Provide loader make and model, required width, hookup measurements and clear mounting photos to confirm the configuration.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

PRACTICAL USES

• Gather loose brush and exposed root debris during land cleanup
• Separate larger rocks and debris while allowing loose soil to fall through
• Collect and pile branches, brush and clearing debris for handling or disposal

Hydraulic Excavator Clamshell Bucket — Future Product Showcase

Explore the planned hydraulic excavator clamshell bucket, targeted for catalogue release in spring 2027 as the design is refined. The supplied engineering mockup uses a Komatsu PC1250LC, 4 cubic yards of capacity and a 9,600 lb attachment weight. Dimensions describe this design example; final specifications and machine-specific fitment remain subject to confirmation.

Hydraulic hoses and hydraulic lines are not included in orders for hydraulic configurations.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

APPLICATIONS & INQUIRY DETAILS

• Bulk-material loading and stockpile rehandling, including loose sand and gravel
• Vertical excavation of loose material in pits, shafts and restricted work areas
• Dredging and sediment cleanout with a configuration approved for underwater service
• For an inquiry: provide machine configuration, mounting details, material type and density, required capacity and working radius

General application sources: Bateman Manufacturing and NG Attachments. These describe clamshell uses, not verified performance claims for this unreleased design.

Getting to Know Your Excavator

Identify the major excavator components involved in attachment selection and use, from the boom and stick to the bucket linkage and attachment pins. Use this overview alongside the applicable measurement guide when preparing your inquiry.

Example sizing, not a machine-size limit. Any tonnage shown identifies the machine class used for the illustrated model and its dimensions. It does not limit the machine sizes this product can be built for. Contact East Attachments to confirm a build for your machine.

ATTACHMENT SELECTION BASICS

• Machine make, model and operating weight
• Pin diameters, pin centers, ear spacing and coupler type, if fitted
• Auxiliary hydraulic flow, pressure and return requirements for powered attachments