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Config reviewDrive Sprocket
SPROCKET SLEEVE CARRIAGE BOLT & NUT CAT 247/257 & B Series2 & ASV/Terex RC/PT 50/60Configuration review required
Serial or config may be required.
Unlock pricingFREE FREIGHT ON ALL ORDERS
Mini Track Loader
Cat 257B3
Shop rubber tracks, undercarriage parts, and attachments for your Cat 257B3 — all in one place.
Parts for Cat 257B30 track options1 undercarriage part
Primary Track
381x100.5x42
Guaranteed FitHeavy Duty Comes Standard.24-Month WarrantyNationwide Fulfillment
Undercarriage
Sprockets
1 option
Configuration review required
Cat 257B3 has more than one possible sprocket configuration. The exact configuration must be resolved before checkout.
Machine FAQ
Cat 257B3 parts & ordering questions.
What products can I shop for my CAT 257B3?
Machine-based rubber tracks, undercarriage parts, buckets, grapples, forks, and brush cutters for the CAT 257B3.
Do these parts fit the CAT 257B3?
This page is built around CAT 257B3 fitment from the model record, supplier part data, and machine-class attachment compatibility. Verify by serial number for serial-specific parts.
How fast does shipping take?
Same-day shipping on orders before 12pm CT. Most orders deliver in 1–3 business days. Tracking emailed at pickup.
What is the warranty?
All Heavy Iron Supply Co. rubber tracks carry a 24-month manufacturer warranty against defects — not prorated.
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