Description

Case 821E Parts Catalog – Factory OEM Parts Breakdown

I’ve seen too many guys spend an afternoon cross-referencing aftermarket part numbers, only to find the bolt head strips at half torque because the grade was wrong. If you’re working on a Case 821E wheel loader – Tier 3, NA/EU production from August 2006 – you need the real part numbers. This is the Parts Catalog, not a service manual, but it’s the only source that lists every factory fastener, hose, isolator, and bracket with the exact OEM part number, quantity, and description.

The folks at Case printed 536 pages of exploded views and part tables. That’s not a reprint of a reprint – it’s the original factory document, scanned from the actual manual used in dealership parts departments. For a 6-bay shop like mine, having this on the bench means I can tell my parts guy exactly what to pull without him calling back twice. For a home-garage guy, it means you don’t end up with a Chinese knockoff isolator that craters in 200 hours.

Engine Mounting and Radiator Sections

Open to page 2 and you’ll see the engine mounting group. Exploded diagram shows the front mount (part 8602302), right rear (8602303), left rear (8602304), plus the isolators, bolts, washers, and lock nuts. The table next to it lists each component: M12 x 45 hex bolt grade 10.9, M13.5 x 24.5 x 3 hardened washer, M16 lock nut class 8. That level of detail is missing from every aftermarket catalog I’ve ever seen. Page 4 covers the radiator mounting group – hoses, clamps, check valves, coolant level sensor – all with their own part numbers. If you need to replace the bottom coolant hose, the catalog says 8500084, 235 mm (9 1/4 in.). No measuring, no guessing.

What Makes This Different from Aftermarket Catalogs?

Aftermarket catalogs love to skip the little stuff. They’ll give you a part number for the radiator assembly but leave out the mounting clamps, the 21/32″ x 2 1/2” hardened washer, or the M8 lock washer. This catalog lists everything. It also calls out the exact thread size and grade for every bolt. When you’re torquing head bolts on a Tier 3 engine, having the right fastener grade isn’t optional – it’s the difference between a sealed joint and a coolant leak in the field.

536 Pages of OEM Part Numbers

That’s the page count – 536. And every single page is packed with exploded views, reference numbers, and part descriptions. It covers the entire machine: engine mounting, radiator, hydraulics, drivetrain, cab, electrical. Each group is separated by a section number (e.g., 02-01 for engine mounting, 02-02 for radiator). You don’t have to flip through a generic parts book that lumps everything together. This catalog is organized the way Case engineers designed it. Pair it with a service manual like CASE 821E 2009 Service Manual to get the torque specs and procedures – the parts catalog gives you the pieces, the service manual tells you how to put them together. Also check CASE 721E 821E Wheel Loader Operator’s Manual for daily operation, and Case 821E, 721E 2009 Operators Manual – Factory OEM for the operator’s perspective.

Use the Correct Fastener Grades

Look at the engine mounting table on page 2 again. Bolts are grade 10.9. Washers are hardened. Lock nuts are class 8. If you pull a bolt from a bin that looks the same but is only grade 8.8, you’re losing clamping force. This catalog gives you the raw spec so you know what to order. For the DIY mechanic who’s used to grabbing a generic fastener from the hardware store, this is the wake-up call. Don’t guess – use the factory part number.

Parts Catalog vs Service Manual: What You Get

This is strictly a parts catalog. It does not include step-by-step removal instructions, torque values, diagnostic charts, or fluid capacities. It’s the companion to the service manual, not a replacement. If you need repair procedures, you want the true OEM service manual – see the related links above. But if you’re ordering parts for an 821E, you’ll waste time and money without this catalog. The exploded diagrams alone are worth the price – they show how every component fits together, which is critical when you’re disassembling a machine you inherited in pieces.

For background on wheel loader design and the industry standards that drive these part specifications, see Automotive Industry Overview. You can also read Automotive Industry Overview for broader context on heavy equipment manufacturing.

Get the right part. Every time. Access the Factory Manual now and stop wasting hours on wrong numbers.

Does this catalog cover the hydraulic system?

Yes. It includes all hydraulic components – pumps, valves, cylinders, hoses – with their OEM part numbers.

Can I use this catalog to identify parts for my 821E with serial number from before August 2006?

This edition specifically covers Tier 3 NA/EU models built from August 2006 onward. Earlier Tier 2 machines may have different part numbers. Check your serial number prefix against the manual’s production range.

Is this the same as the service manual?

No. This is a parts catalog only – it does not contain repair procedures, torque specs, or troubleshooting steps.

How do I read the exploded view diagrams?

Each diagram has a reference number next to each part, and the table below lists that reference with the part number, quantity, and description. The part number is what you order from Case. The quantity tells you how many you need per assembly. Always verify you’re looking at the correct group (e.g., 02-01 for engine mounting) before ordering.