Description

FIAT Kobelco LK850-II 1991 Parts Catalog – OEM Factory Manual

I’ve been turning wrenches for 28 years. Seen a lot of parts counters. You order a seal, wait three days, and it’s the wrong one. That’s what happens when you trust aftermarket cross-references or some PDF that was scanned off a photocopy. This FIAT Kobelco LK850-II 1991 Parts Catalog is the actual OEM document – 456 pages of factory part numbers, exploded diagrams, and group indexes that tell you exactly which piece goes where. If you’re working on an LK850-II with serial number range starting from RJ-1004-1210, this is the only book you need. I’ve had guys in my shop try to use third-party parts lists; they waste hours. Don’t be that guy.

This catalog came out in April 1991. It’s printed in the USA – Book/Form Number S3RJ1002-03E NA. That’s the real deal. The document is broken down by major assemblies: front frame, rear frame, chassis frame, cab, steering, final drive, and cylinder assemblies. You get the whole machine, split out so you can eyeball the part you need. Each group has a set of figures with callouts that tie back to the part number table. No guesswork.

Front Frame and Rear Frame Groups

The front frame group (FR. FRAME GROUP) covers everything from the loader arm mounts to the steering bracket hardware. The rear frame group gets the counterweight, the radiator support, and the engine mount bits. These groups are indexed by page numbers – you’ll find them under BFL-1 and BRL-1 designations. When you need a bushing for the articulation joint, you flip to the rear frame section and the part number is right there. I’ve had to explain to a junior tech that the weldment part number differs between early and late LK850-II – this manual accounts for the serial break.

Chassis Frame and Cab Group: 7 Sub-Sections

Chassis frame group runs from sub-section (1) through (7). That includes the main frame rails, cross-members, and the mounting plates for the transmission. The cab group (CAB GROUP) has seven sub-sections too – from the ROPS structure to the window seals and control levers. If you’re rebuilding a cab from the ground up, you need this. I’ve seen guys order a complete cab harness from a generic source – the pins don’t match. Factory catalog gives you the correct harness part number based on the cab variant. Steer clear of aftermarket junk.

Cylinder and Steering Assembly: What’s Listed?

Cylinder assembly sheets are broken into three separate groups – (1), (2), (3). Each group lists the rod seals, piston rings, and gland nuts as individual part numbers. You don’t get a generic “seal kit” – you get the exact OEM part for the LK850-II’s specific cylinder. Same with the steering group – it covers the orbitrol valve, the hoses, and the drag link hardware. The manual tells you which steering cylinder seal fits the left side vs. right side. That matters when the bore diameter changes.

Final Drive: Breakdown You Can Trust

Final group (FINAL GROUP) has ten sub-sections – (1) through (10). That’s the axle housing, the planetary gears, the bearings, the sun gear, and the wheel flange. Each section has an exploded view with a parts list. If you hear a growl from the rear final drive, you can identify the bearing part number without pulling the whole assembly and measuring. Then order the right bearing from your dealer. One guy in my shop tried to order a “universal” axle seal – lasted two weeks. Factory spec seals only.

Why OEM Documentation Beats Aftermarket

Aftermarket parts catalogs often consolidate multiple model years into one ISBN, which means the illustration might be for a different revision. With this 1991 OEM catalog, the part numbers are tied to the serial number range printed on the first page. The document is factory-original – no third-party reprints, no “compatible” numbers that don’t fit. I keep a copy of the 1991 catalog for the LK850-II because every bolt, washer, and o-ring is accounted for. If you need the engine parts, that’s a separate manual – this catalog points you to the engine group only as a reference. For the loader itself, this is all you need.

How to Order Parts Correctly

Flip to the group index. Find the assembly you need – say, the cab group. Look at the sub-section (4) for the heater and air conditioner components. The part number is printed alongside the quantity. Write down the seven-digit number. Call your Kobelco dealer and read that number. They’ll pull the correct part from their system. No decoding, no “I think it’s this one”. The manual even includes notes on which parts supersede – there’s a revision column on some pages. Take a moment to read the front matter: it tells you to confirm the machine serial number before ordering. I’ve had apprentices skip that step and order a steering column from a later series – doesn’t bolt up.

FAQ

Does this manual cover the engine internal parts?

No. Engine parts are in a separate engine manual. This catalog covers the wheel loader chassis, cab, hydraulics, steering, and final drive only.

What serial numbers does this catalog apply to?

It covers the LK850-II from serial RJ-1004-1210 onward. Earlier machines may use different part numbers. The first page lists the applicable serial range.

Can I use this catalog to look up torque specs?

Not really. This is a parts catalog – it lists part numbers and quantities. Torque values are in the service manual. I’d recommend getting the separate repair manual if you need assembly specs.

I’m a home mechanic – is this too advanced?

If you can read an exploded diagram and match a number to a table, you’ll be fine. Professional or DIY, the part numbers are the same. Just don’t skip verifying your machine serial.

You’ve wasted enough time on wrong parts and bad catalogs. This is the factory document that the dealer parts counter uses. Order it. Access the Factory Manual and start fixing your LK850-II with the exact numbers Kobelco stamped on the original prints.

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• FIAT Kobelco ED150, ED150-2 2009 Parts Catalog OEM Manual”>FIAT Kobelco ED150, ED150-2 2009 Parts Catalog OEM Manual
• FIAT Kobelco LK650-II 1992 Parts Catalog – OEM Factory Specs”>FIAT Kobelco LK650-II 1992 Parts Catalog – OEM Factory Specs

For background on loader design, see the Automotive Industry Overview”>Automotive Industry Overview and the Internal Combustion Engine”>Internal Combustion Engine articles.