Description

Skytrak 8042, 10042, 10054 2014 Parts Catalog – What You Get on the Bench

You need a parts catalog that actually matches what’s bolted on your machine. Not some third-party list that leaves you guessing which seal fits which boom section. This is the Skytrak 8042, 10042, 10054 2014 Parts Catalog – 382 pages of factory-issued part numbers, exploded diagrams, and configuration splits you won’t find anywhere else. I’ve been wrenching for 28 years, and I can tell you: when you order a part from a book like this, it lands on the dock before lunch. Get the wrong number from an aftermarket site, you’re waiting a week and still pulling the wrong bolt.

Frame and Attaching Parts: Covers and Outriggers

Section 1 covers the frame, covers, and outrigger installation. Two cover variants exist – one for machines built before serial number 0160053075 (excluding three specific S/Ns), and another for machines after that point plus those three exceptions. You need to know which one you’ve got. The catalog lays out both Figure 1-2 and 1-3 with callouts. Page 3 of the manual shows the effectivity history – revision H dated November 18, 2014. That tells you the book is current through the last factory revision. Don’t guess your cover; cross-check your serial number.

Boom Sections: Four Stages, Two Configurations

Section 2 breaks down the boom from first to fourth section. The 8042 and 10042 share a second boom section (Figure 2-3), while the 10054 gets its own (Figure 2-4). Same story on the third boom section. Extend and retract chains are also split by model. If you’re chasing a chain rattle on a 10054, you need Figure 2-9, not 2-8. Quick attach hardware lives in Figure 2-12. Each figure includes the exact part number for every bolt, pin, and shim. No hunting through generic diagrams – it’s all right there.

Engine and Attaching Parts: ULS vs LS Configuration

Section 4 runs from engine installation down to the isolation coupler. And pay attention here – every figure is tagged “IF EQUIPPED FOR ULS” or “IF EQUIPPED FOR LS.” Ultra Low Sulfur versus Low Sulfur. The manual explicitly tells you on page 4 to look for the fuel decal. If your machine has the Ultra Low Sulfur sticker, you order from the ULS figures. If not, flip to the LS figures. Same Cummins engine block, different fuel system components. Ignore that split and you’ll buy a fuel tank that doesn’t fit. That’s a waste of money and a morning.

Drive Train Components: Axles and ZF Transmission

Section 5 is a monster. Front axle, rear axle, ZF transmission with eight exploded views of coupling and reversing gear groups. Wheel assemblies differ between the 8042 (Figure 5-33) and the 10042/10054 (Figure 5-34). Need a limited-slip differential part for the front axle? Figure 5-4. Brake components are split into M-Disc brake (Figure 5-6) and separate brake (Figure 5-7). The ZF transmission section alone (Figures 5-17 through 5-31) covers the converter, input shafts, gearbox housing, valve block, and oil pump. If you’re rebuilding a transmission, you want the part numbers that came from the same factory that built it.

Hydraulic Components: Cylinder Breakdown

Section 9 hits the extend/retract cylinder. Page 5 of the manual shows an exploded view with a parts table – item numbers, part numbers, descriptions. Rod seal, piston seal, dust seal, wiper seal, snap ring, barrel – they’re all listed. The part numbers are real OEM numbers, not cross-referenced. If your cylinder is leaking past the wiper, you order item 15 (wiper seal) by the exact factory code. No guessing.

Source Authenticity: OEM vs Aftermarket

This is a JLG/SkyTrak factory publication. Revision H, November 2014. It was printed by the same company that builds the machines. Aftermarket parts catalogs often renumber things or skip the ULS/LS split. I’ve seen third-party books list one part number for a boom chain where the factory shows two different chains. That’s the difference between getting it right and getting stranded. If you’re serious about keeping a Skytrak telehandler running, you use the OEM book. Period. Check out the Automotive Industry Overview for context on why OEM accuracy matters in heavy equipment.

Who Needs This Manual and Why

Anyone rebuilding a telehandler boom, swapping an axle, or replacing a cylinder on a Skytrak 8042, 10042, or 10054. If you’re a fleet mechanic, you’ll use this to order parts in bulk. If you’re a DIY owner-operator, you’ll use it to avoid overpaying at the dealer. You can also pair it with the SKYTRAK Operation & Safety Manual Models 6036-10054 for operational specs. For other models, the SKYTRAK Model 5030 6034 Illustrated Parts Manual covers a different weight class. And the SkyTrak 6042 Telehandler Parts Manual handles the 6042. But for these three models – 8042, 10042, 10054 – this is the catalog.

Frequently Asked Questions

Does this manual include torque specifications?

No. This is a parts catalog, not a service manual. It lists part numbers, not assembly torque values.

Can I use this catalog to order parts for a 10054 with an LS engine?

Yes, but you must confirm your machine’s fuel decal. The manual splits every engine-related figure into ULS and LS configurations. If your 10054 has the Low Sulfur decal, use only the LS figures in Section 4. The serial number range on the cover (0160045250 to Present) applies, but note the excluded S/Ns – double-check that your machine isn’t one of them. Also verify the effectivity page to see which revision applies to your serial. If your machine falls into the gap between revisions, the parts listed may not match. In that case, contact JLG with your S/N for confirmation. This catalog is accurate for the stated range, but serial number splits inside the manual (like the cover variants in Section 1) require you to look up your exact S/N before ordering.

You’ve read the breakdown. Now get the manual on your shop computer, tablet, or printed out. Access the Factory Manual – no fluff, no reprints, just the same pages the dealer uses.