CAT 308ECR Tracks & Parts

Outfit your CAT 308ECR mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 450x81Nx78, backed by a 24-month warranty and free freight to the lower 48.

CAT 308ECR — Track Spec Sheet

Track size: 450x81Nx78
Width: 450 mm
Pitch: 81.0 mm
Links: 78
Guide: Offset guide

Choose Your Tread

Directional — Angled directional lugs purpose-built for excavation, grading and trenching.

Matched Undercarriage Components

Pair your tracks with the right undercarriage parts for the CAT 308ECR:

Bottom Roller — OEM Part #127-3806

Same Track, Other Machines

Looking for another machine? The 450x81Nx78 size also fits:

Why TrackTECH

Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.
Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
Premium virgin rubber — anti-chunk compound built for long service life in abrasive conditions.
Drop-forged steel links for strength where the track meets the drive system.

Upgrade your CAT 308ECR today. Order online for free freight, or call (850) 816-7898. Need a hand matching size and guide? Try the Track Finder.

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Find Your Track Call TrackTECH

CAT 308ECR Tracks & Parts — TrackTECH rubber tracks & undercarriage parts

Track sizes

450x81Nx78

Rubber tracks

CAT 308E CR 450x81Nx78 Directional
- Heavy Duty | 450x81Nx78
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Which tread fits CAT 308ECR?

Pick a tread for your jobsite — then buy above.

+ Recommended surface- Not the primary use— Application dependent

Pattern	Best Use	Key Traits	Road	Clay	Gravel	Mulch	Mud	Turf	Action
D DirectionalMachine-matched track option	Available for this machine from the governed TrackTECH fitment record. Review the track option above for current price and availability.	Governed Fitment Machine-Matched Current Commerce Data	—	—	—	—	—	—	View

Built for Heavy Duty Use

Heavy-Duty Track Construction

Setting a new standard in heavy-duty performance. Find your exact fit, reduce avoidable downtime, and keep your machine working — not waiting.

Brand New
New belts — not remills or retreads.
Heavy-Duty Steel Guides
Precision-formed internal steel components support consistent sprocket engagement.
Continuous Steel Cord
Continuous internal steel reinforcement supports belt strength under repeated load.
Premium Wear-Resistant Rubber
Heavy-duty rubber construction built for abrasion and daily commercial use.
Precision Fitment
Governed width, pitch, and link count for the machine application.
High-Traction, Low-Vibration
Tread patterns matched to the jobsite.

CAT 308ECR fitment data

Fitment & Part Numbers

Track Size	450x81Nx78
Roller	127-3806

About CAT 308ECR Tracks & Parts

Outfit your CAT 308ECR mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 450x81Nx78 , backed by a 24-month warranty and free freight to the lower 48. CAT 308ECR — Track Spec Sheet Track size: 450x81Nx78 Width: 450 mm Pitch: 81.0 mm Links: 78 Guide: Offset guide Choose Your Tread Directional — Angled directional lugs purpose-built for excavation, grading and trenching. Matched Undercarriage Components Pair your tracks with the right undercarri

Related Collections

Will this track fit my CAT 308ECR?

Yes — this track is matched to the CAT 308ECR by size and tread pattern.

Do you stock undercarriage parts for the CAT 308ECR?

Yes — along with the rubber track we carry bottom rollers for the CAT 308ECR, so you can refresh the whole undercarriage in one order.

Are these OEM or aftermarket CAT 308ECR tracks?

OEM-grade aftermarket tracks built to factory fitment for the CAT 308ECR — same dimensions and guide type, continuous steel-cord belt, at a better price than dealer OEM.

Directional or block tread — which should I run?

For mixed dirt and gravel, most CAT 308ECR owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.