Description

Terex RT 335, RT300-1, RT345XL 2011 Parts Catalog – OEM Factory Manual

I’ve spent more hours than I care to count digging through aftermarket parts lists that are missing half the part numbers or show the wrong assembly. When you’re holding a Terex crane that needs an axle lock-out cylinder or a new fuel tank, guessing costs you money and puts the machine down longer. This Terex RT 335, RT300-1, RT345XL 2011 Parts Catalog is the real deal — directly from the factory, printed November 2011, and it covers three models in one manual. 261 pages of exploded views and genuine part numbers. No generic web copy, no reprints.

Carrier Frame and Fuel Tank: Section 2 Breakdown

Section 2 covers the carrier frame, fuel tank, and all the undercarriage assemblies. You’ll find the fender & deck assembly, frame machining for the RT345XL model, and the complete fuel tank group with part numbers for the tank itself, straps, and sending units. The hydraulic axle lock-out system and its cylinder are in subsection 2.9 and 2.11 — if you’re replacing a valve or a cylinder seal, you need the exact OEM reference. The front and rear axle assemblies are in 2.5 and 2.7, with exploded views that show every bearing, kingpin, and brake plate. Ignore these details and you’ll order the wrong spindle nut — I’ve seen it happen.

Outrigger Systems: Cylinder and Valve Specs

Section 3 is where you find the outrigger assembly, beam assemblies, and the outrigger jack cylinder. The outrigger extend cylinder and the selector valve are listed individually with their own part numbers. If you’re working on an RT300-1, pay attention to subsection 3.9 — the outrigger sensor installation is unique to that model. The RT345XL uses a different frame setup (section 3.7). These are not interchangeable parts, and the manual calls it out clearly. The outrigger pads themselves are in 3.6 — heavy rubber, specific durometer, and you want the right size to avoid sinking into asphalt.

Engine, Transmission, and Driveline – Cummins & Dana

Section 6 runs five sub-pages on the Cummins engine installation, including the cooling assembly group. Section 7 covers the Dana transmission: you get the converter group, clutch groups for R/3rd/F/2nd and Low 1st, the pressure valve, pump, oil filter, control valve assembly, and the pump disconnect. Need a drive plate? Subsection 7.16. Drive shafts are in section 9. These are the same exploded views the factory uses to assemble the crane — you can trace every bolt and washer back to a part number. That beats calling a distributor and hoping the guy on the phone knows the difference between the RT300-1 and RT345XL transmissions.

7 Systems Covered – Steering, Brakes, Pumps, and Swing

Beyond the drivetrain, this catalog covers steering (section 11) with the steering control unit, cylinder, and valve. Brakes (section 10) includes the air supply assembly and brake line system. Superstructure and swing bearing are in section 12. Counterweight section 13 gives you options for 8,900 lb, 10,000 lb, 13,000 lb, and 119,000 lb fabrications — yes, that last one is for the RT345XL. Swing system (section 22) details the Braden swing drive and reduction unit plus the Eaton swing motor. Hydraulic pumps are in section 24 with separate subsections for attachment/swing pumps and the swing/steering/outrigger pump group. If you’re replacing a pump and need the coupling or seal kit, those part numbers are in the exploded view on the same page.

Ordering Parts the Right Way – What the Manual Says

This manual includes the factory instructions for ordering parts. It tells you to use the part number and description, not the item number, and not to use the words “Pairs” or “Sets”. It also warns you to know your machine serial number — the final six digits are on a plate outside the operator’s cab. For the RT345XL, the counterweight section uses a different part number than the RT300-1. Forget that and you’ll get the wrong fab piece. The manual also includes a parts group index so you can find group 7 (transmission) or group 10 (brakes) fast. That kind of clarity is missing from third-party PDFs that just copy pages without the ordering notes.

Why This Beats Any Aftermarket PDF

I’ve had customers bring me aftermarket parts catalogs that skip the cylinder variants or don’t show the valve internal seal numbers. This Terex catalog is the OEM print — same pages the dealer uses. The exploded views show the relationship of every assembly, and the parts lists face them directly. You won’t find a generic “fuel tank” entry; you’ll see the tank, the cap, the sender, and the mounting hardware. That specificity saves you from ordering a part that almost fits but doesn’t. And when you’re dealing with crane outriggers, almost isn’t safe.

This manual also covers models from the 2011 production year, but many parts carry across earlier years. Check your serial number and cross-reference with the group index. If you’re working on a Automotive Industry Overview applies here — the same rigorous part numbering system used in heavy equipment is what keeps these machines field-reliable.

Frequently Asked Questions

Does this manual include torque specs for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers, quantities, and exploded views. For torque values, you need the corresponding Terex service manual for the RT 335, RT300-1, or RT345XL.

Can I use the RT300-1 section for an RT345XL?

Some sections overlap — like the carrier frame and outriggers — but many parts differ. The manual separates them. Check the group number and your machine serial number before ordering. The RT345XL has its own counterweight and frame machining sections.

How do I find the part number for the outrigger extend cylinder seal kit?

Turn to section 3.4 (Outrigger Extend Cylinder). The exploded illustration shows the cylinder body, piston, rod, and all seals with individual part numbers. Use the part number from that page — don’t rely on the description alone.

What if I need the fuel tank for a 2011 RT 335?

Section 2.8 (Fuel Tank) lists the tank assembly for all three models. Verify your serial number against the parts list footnotes. The manual uses serial number breaks to indicate product improvements — if your machine is outside the range, call a Terex distributor.

Look, I’ve torqued head bolts on everything from a John Deere backhoe to a Caterpillar dozer. Parts catalogs aren’t sexy, but they’re what keep a machine from sitting dead in the yard waiting on the wrong seal. You need the genuine factory reference. Don’t trust some scanned copy missing pages 12 through 18. This 261-page file covers the RT 335, RT300-1, and RT345XL with the same accuracy Terex prints for its own dealers. Access the Factory Manual and get the part numbers you can actually use.

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• Schaeff-terex SKL 863 2003 Parts Catalog – OEM Factory Manual
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Automotive Industry Overview