Forestry / Harvesters / Caterpillar / 521

Ship a Caterpillar 521 harvester: specs verified, rate in 60 seconds

The Caterpillar 521 measures 37 ft 9 in long, 10 ft 6 in wide and 11 ft 8 in high at 57,430 lbs (11.51 m × 3.20 m × 3.56 m, 26,050 kg). It is an oversize load (oversize permit); permits and escorts are priced into the rate automatically. Enter your route below; the dimensions are already in the form.

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Machine dimensions

✎ Edit dimensions

L 37 ft 9 in · 11.51 mW 10 ft 6 in · 3.20 mH 11 ft 8 in · 3.56 mWt 57,430 lbs · 26,050 kg

Pre-filled from verified specs (2026-11-01). Final dimensions are the shipper's responsibility; confirm with the pickup site if unsure.

Oversize load, and what that means for your shipment. At 10 ft 6 in wide this machine exceeds the 8 ft 6 in legal limit on every route. Your rate includes the right trailer, permits and escorts (none expected), priced automatically, nothing added at pickup.

Before you book: what shippers ask

What trailer does a Caterpillar 521 need?

A lowboy or RGN. At 11 ft 8 in tall the machine sits at 13 ft 2 in on an RGN deck and 16 ft 8 in on a flatbed; the legal loaded height is 13 ft 6 in in the US and 13 ft 7 in in Canada.

Does a Caterpillar 521 need oversize permits?

Yes. 10 ft 6 in of travel width exceeds the 8 ft 6 in legal limit; the quote prices permits for every state or province crossed, escorts none expected, and files them for the carrier.

Can a Caterpillar 521 be loaded without a crane?

Yes when it starts and drives: it loads under its own power on the trailer's ramps. If it is inoperable, toggle starts-and-drives off in the form; winch loading is priced in, never added at pickup.

How should I prepare a Caterpillar 521 for pickup?

Empty the bucket or bed, fold and secure loose parts, note fluid leaks, and confirm the dimensions against the machine as it sits: debris, unfolded attachments or missing counterweights change weight and price.

What does it cost to ship a Caterpillar 521?

Distance and the trailer class drive the price once the dimensions are set. Enter pickup and drop-off below; the rate is free, bookable and locked for 30 days.

How this harvester ships

1. Equipment match: Lowboy or RGN
2. Loading: Drive-on when it runs; winch when it does not
3. Permits and escorts: oversize permit, escorts none expected
4. Season: weight-sensitive in spring thaw: rural pickups in Canada and the northern US may face road bans March to May, priced automatically

Operational specs

Published manufacturer figures for the base unit (LoadLoom equipment library, 2026-11-01); transport dimensions above remain the planning figures.

Engine

Engine Make: 2236
Engine Model: C9 ACERT
Gross Power: 284 hp
Net Power: 263 hp
Power Measured @: 2100 rpm
Displacement: 537.1 cu in
Rated Power: 263 hp

Operational

Operating Weight W/O Attachment: 59710 lb
Fuel Capacity: 140.1 gal
Cooling System Fluid Capacity: 16.2 gal
Engine Oil Capacity: 10.4 gal
Hydraulic System Fluid Capacity: 79.3 gal
Operating Voltage: 24 V
Alternator Supplied Amperage: 95 amps

Weights

Operating Weight - Without Attachment: 59710 lb
Operating Weight - Without Attachment - Track Harvester Configuration: 57440 lb

Hydraulic System

Pump Size - Travel Circuit: 12.2 cu in
Pump Size - Boom, Implements: 11.6 cu in
Pump Size - Saw Motor: 3.4 cu in

Service Refill Capacities

Cooling System: 16.1 gal
Fuel Tank: 140 gal
Hydraulic Tank: 69.2 gal
Hydraulic System: 79.3 gal
Engine Oil: 10.3 gal
Swing Drive: 2.6 gal
Pony Fuel Tank - Optional: 90 gal

Dimensions - Track Harvester Configuration

Shipping Length - Without Attachment: 453 in
Height - Without Attachment: 140 in
Width - Minimum - Without Attachment: 126 in

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1 · Your machines

Ⓐ Length?The longest point of the machine from front to back, including anything that sticks out (forks, blade, counterweight).

ftinch

Ⓑ Width?The widest point of the machine BODY, left to right. Don't count the attachment here, that goes in Ⓓ.

ftinch

Ⓓ Attachment width?Width of the bucket, blade, or boom if it's wider than the machine body.

ftinch

Ⓔ Angled width?If the blade or attachment can be turned/angled for transport, enter its width when angled. We price on this narrower width.

ftinch

Weight?Total operating weight including attachments. Check the spec plate on the machine or the operator's manual.

lbs

Starts and drives??Starting and driving are different things: the machine must start AND move under its own power onto the trailer. If it starts but cannot drive, answer No. Non-runners need a winch-equipped trailer (surcharge applies). Loading assistance is not included in any quote; the driver loads with the truck's own equipment only.

Value of the shipment *?What would it cost to replace this cargo today? Your declared value sets your protection options and prints into your agreement.

2 · Your route

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All equipment specs

Specifications are provided for transport planning purposes only and reflect standard base configurations as published by equipment manufacturers and industry sources. Actual dimensions and weights vary by configuration, options, attachments, and condition. LoadLoom does not guarantee the accuracy or completeness of published specifications. Confirming final dimensions and weight is the responsibility of the shipper; misdeclared dimensions may result in adjusted pricing, delays, or refused pickup. Legal load limits, permit requirements, and escort rules vary by state and province and are subject to change; permit and escort estimates are informational until confirmed at booking. Coverage is subject to declared value and the terms of the LoadLoom booking contract. Images and schematics are illustrative and may not depict the exact model or configuration listed. See PriceLock terms and the LoadLoom Terms and Conditions. Report an incorrect spec.