Mini Excavator

CAT 305.5 Mini Ex Tracks

Fits track size: 400x72.5Wx72

Choose your tread pattern. OEM-grade, continuous steel cord, free freight.

24-Month Warranty Free Freight Same-Day Shipping Fleet Discounts
CAT 305.5 rubber tracks and parts
Machine Performance
  • Operating Weight11750 lbs
  • Horsepower42.0 HP
  • ROC / Bucket Force13000 lbs
  • Track Size400x72.5Wx72
Hydraulics & Lift
  • Standard Flow24.4 GPM
  • Hydraulic Pressure3626 PSI
  • Lift TypeMinimal Tail
OEM Reference Parts
  • Sprocket P/NSP158-4795
  • Front Idler P/NFI241-5973
  • Bottom Roller P/N340-8957

CAT 305.5 Mini Ex Tracks

Pick your track size (OEM fit: 400x72.5Wx72), then choose a tread pattern. OEM-grade continuous steel cord · free freight.

CAT 305.5 Mini Ex · 400x72.5Wx72

Staggered Block

Heavy-Duty Rubber Track

Staggered Block

Track Size: 400x72.5Wx72

$1,699.00$1,913.00Save $214.00

View Track
X-Terrain

Heavy-Duty Rubber Track

X-Terrain

Track Size: 400x72.5Wx72

$1,943.00$2,188.00Save $245.00

View Track
Shop all CAT 305.5 rubber tracks →

CAT 305.5 Mini Ex Undercarriage

OEM-cross-referenced sprockets, idlers & rollers for the CAT 305.5. Drop-in fit for 400x72.5Wx72.

CAT 305.5 Mini Ex Sprockets

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Sprocket

Heavy-Duty Sprocket

Part #: SP158-4795

$229.00$259.00

View Part

CAT 305.5 Mini Ex Front Idlers

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Front Idler

Heavy-Duty Front Idler

Part #: FI241-5973

$499.00$559.00

View Part

CAT 305.5 Mini Ex Rollers

Part number depends on serial break — confirm your S/N before ordering.

Heavy-Duty Track Roller

Heavy-Duty Track Roller

Part #: TR340-8957

$149.00$169.00

View Part

CAT 305.5 Mini Ex Attachments

Excavator Pin-On mount for the CAT 305.5. Buckets, grapples, forks, brush cutters & more — selected for this machine.

Backhoe Heavy Duty Bucket

Attachment

Backhoe Heavy Duty Bucket

$495.00

View Attachment
Shop all attachments →

CAT 305.5 FAQs

Common questions about CAT 305.5 tracks, undercarriage parts, and attachments.

What size rubber tracks fit the CAT 305.5?
The CAT 305.5 commonly uses track size 400x72.5Wx72. Verify against your machine's existing track sidewall marking or OEM manual before ordering.
Are Heavy Iron tracks guaranteed to fit my CAT 305.5?
Yes. Every rubber track order requires you to confirm make and model at checkout. We cross-reference OEM specs and only ship when fitment is verified. Wrong-fit claims are covered under our fitment guarantee.
How fast do CAT 305.5 tracks ship?
Orders placed before 12PM CT ship the same business day. Rubber tracks ship free via LTL freight to the contiguous United States (48 states).
What tread patterns are available for the CAT 305.5?
We stock 2+ tread options for the CAT 305.5 — including C-Block, multi-bar, zig-zag, and directional patterns. See the tracks section above for live pricing.
Do you sell undercarriage parts for the CAT 305.5?
Yes — sprockets, idlers, rollers, and related steel undercarriage components are listed on this page when in stock. Need an OEM part number matched? Call (850) 816-7898 with your serial number.

Ready to outfit your CAT 305.5?

Need a part not listed? We source OEM-cross undercarriage and attachments for every major brand. Free freight and fleet pricing.

Request a Free Quote
Or call us at: (850) 816-7898