Pin-Verified Fitment · 3.5 T CLASS
Attachments for
CAT 303.5
Heavy-duty buckets, thumbs, rippers, and quick couplers matched to CAT 303.5 CR / Next Gen mini excavators.
Machine Reference Data
Operating weight3.5 T CLASS
Pin diameter35 / 40 MM
Pin centers / ear width195 MM · EAR WIDTH 136 MM
Auxiliary flow65 L/MIN (17.2 GPM)
Coupler interfacePIN-ON / PIN GRABBER
VERIFIED FACTORY REFERENCE SPECS · WE DOUBLE-CHECK AGAINST YOUR SERIAL PLATE BEFORE FABRICATION
12 Compatible Attachments
Fits 303.5 — No Modification
Skeleton
AC-SK-020 · PIN 35/40 MM ✓
Skeleton Bucket
FROM$500→
Trenching
AC-TB-030 · PIN 35/40 MM ✓
Trenching Bucket
FROM$450→
Digging
AC-SB-035 · PIN 35/40 MM ✓
Digging Bucket 600
FROM$450→
Grading
AC-GB-040 · 1000–1200 MM ✓
Grading Bucket
FROM$520→
Thumb
AC-TH-015 · PIN-ON ✓
Hydraulic Thumb
FROM$285→
Ripper
AC-RP-010 · PIN 35/40 MM ✓
Single-Tine Ripper
FROM$320→
Coupler
AC-MQC-030 · PIN 35/40 MM ✓
Mechanical Coupler
FROM$285→
Auger
AC-AU-035 · FLOW 65 L/MIN ✓
Mini Earth Auger
FROM$1,000→
Teeth
AC-GET-J200 · PIN 35 / 40 MM ✓
Teeth & Adapters
FROM$38→
Grapple
AC-RG-040 · PIN 35/45 MM ✓
Rotating Grapple
FROM$1,150→
Breaker
AC-HB-530 · FLOW & PIN ✓
Breaker Hammer HB530
FROM$1,180→
Pallet Forks
AC-PF-035 · PIN 35/45 MM ✓
Excavator Pallet Forks
FROM$620→
Root Rake
AC-RK-035 · PIN 35 / 40 MM ✓
Excavator Root Rake
FROM$340→
Cutting Edges
AC-GET-CE · PIN 35 / 40 MM ✓
Cutting Edges & Cutters
FROM$55→
Plate Compactor
AC-PC-040 · PIN 35/45 MM ✓
Plate Compactor
FROM$890→
Related Models & Guides
CAT 305 Attachments→Bobcat E35 Attachments→Deere 35G Attachments→Kubota U27 Attachments→FAQ · CAT 303.5 Fitment
What pin size does the CAT 303.5 use?
Depending on whether your CAT 303.5 is an earlier C/D/E series or Next Gen CR model, pin diameters are 35 mm or 40 mm with a 136 mm ear opening. We verify your exact serial prefix prior to fabrication.