Description

JLG G5-18A, 2505 2014 Parts Catalog

You ever order a part from a generic parts list and watch the shipping box sit on the shelf because the thread pitch was wrong? That’s what happens when you trust aftermarket documentation. I’ve got 28 years in this industry, and I can tell you the only parts catalog worth a damn on a JLG G5-18A or 2505 is the factory print from 2014. This isn’t a reprint or a scavenged PDF — it’s an official OEM Parts Catalog with 332 pages of verified part numbers, exploded diagrams, and revision history. If you’re turning wrenches on a JLG telehandler, you need this on your bench, not a tablet full of questionable aftermarket guesses.

332 Pages of OEM Part Numbers

Every figure in this catalog corresponds to a specific JLG factory drawing. Section 1 alone covers Frame & Attaching Parts with seven figures — from frame shrouding (Figure 1-1) to rear engine cover (Figure 1-7). Need the right axle seal? Figure 1-4 shows the axle & fender installation with the exact OEM fastener callouts. The book doesn’t list aftermarket cross-references; it gives you the JLG part number straight from the 31200360 revision H release. You will not find a single “equivalent” or “or equal” in these pages. That’s the difference between a part that fits and a part that sits in a box.

Section 4: Engine & Attaching Parts – Perkins Engine Breakdown

The Engine section (Section 4) is where most techs start digging. Figure 4-1 details the engine installation, Figure 4-2 the engine assembly, and Figure 4-3 specifically covers the Perkins engine used in these models. When you’re rebuilding a cylinder head or chasing a coolant leak, the radiator/oil cooler installation drawing (Figure 4-4) and air cleaner routing (Figure 4-5) save you from ordering the wrong hose or clamp. I’ve seen guys order a generic radiator cap and end up with steam across the jobsite — don’t be that guy. Use the OEM parts list from this catalog and call it done.

Why the Effectivity Page Matters

Flip to page i of the PDF. You’ll see the Effectivity Page listing every manual revision from February 22, 2008 (revision A) through January 22, 2014 (revision H). That’s eight revisions of field corrections. If you’re working on a machine built in 2011 and you grab a 2008 catalog, you’ll miss updates to the boom pads or hydraulic line routing. This 2014 version includes all changes up to revision H — meaning you’re ordering parts that actually fit your machine’s production date. Aftermarket catalogs don’t give you this. They give you a single snapshot and hope you don’t notice the differences.

Boom Assembly: Pads & Shims (Figure 2-2)

The boom section gets particular attention from anyone who’s rebuilt a telehandler boom. Figure 2-1 shows the assembly components, but Figure 2-2 is the money shot — pads & shims. These wear items are critical for boom alignment and slop elimination. Order the wrong shim pack thickness and you’ll either bind the boom or let it rattle. The catalog gives you original JLG shim part numbers by thickness. Combine that with the boom pin installation drawing (Figure 2-3) and you can rebuild the entire boom assembly without a single trip to the aftermarket parts counter.

Hydraulic Circuit Diagrams: What Section 8 Covers

Section 8 covers Hydraulic Circuits with eleven figures. The supply circuit (Figure 8-1) shows the pump-to-valve routing. The dump circuit (Figure 8-2), steer select (Figure 8-3), and service/park brake circuit (Figure 8-4) are all factory-sourced. If you’ve ever chased a hydraulic leak with a generic schematic missing the correct O-ring part number, you know the pain. This catalog gives you the component part numbers for every cylinder, valve, and hose assembly in the system. Need the lift cylinder rebuild kit? Figure 8-6 and Figure 9-1 cross-reference to the same seal pack. No guesswork.

Understand the Electrical Harness Routing

Section 10 Electrical has seventeen figures — from the full cab switch layout (Figure 10-4) to the LSI timer installation (Figure 10-14). When you’re troubleshooting a no-start condition, the frame base harness (Figure 10-6) and cab harness (Figure 10-8) let you trace each wire gauge and connector pin. The speedometer sensor installation (Figure 10-15) shows the exact sensor part number and bracket. Aftermarket electrical diagrams often omit harness branch lengths or connector housings — this catalog catches those details because JLG engineers wrote the drawings.

Related manuals that pair well with this parts catalog: JLG G5-18A 2505H Agrovector 25.5 2013 Service Manual – Section: Cab, JLG G5-18A 2505H Agrovector 25.5 2013 Parts Catalog, and JLG G5-18A 2505H Agrovector 25.5 2014 Parts Catalog. For a broader view of the construction equipment industry and its standards, see Automotive Industry Overview and Automotive Industry Overview.

Does this parts catalog include torque specs for assembly?

No, this is a parts catalog, not a service manual. It lists OEM part numbers only.

How do I use the effectivity page to make sure I’m ordering parts for my machine’s revision?

Look at the Effectivity Page (page i) and match your machine’s serial number prefix against the revision letter listed. Each revision (A through H) corresponds to a production date range. If your machine was built after January 22, 2014, you need a later revision — but for most G5-18A and 2505 units built through early 2014, revision H covers everything. The catalog’s section drawings also have part number callouts that were updated at each revision, so using the correct revision ensures you’re ordering the exact fastener, hose, or seal that left the factory on your machine.

Stop wasting time and money on parts that don’t fit. Access the Factory Manual now and get the genuine JLG part numbers from the 2014 revision H catalog. Your toolbox will thank you.