Description

Case 680CK 1972 Parts Catalog – The Only Factory-Correct Source for Your Loader Backhoe

Mike Callahan here. I’ve torn down more 680CK machines than I care to count, and I’ll tell you straight: if you’re trying to rebuild a 1972 Case 680CK with aftermarket parts lists, you’re wasting time and money. This Case 680CK 1972 Parts Catalog is the original factory print, issued December 1972, covering serial numbers 9111009 and after. At 398 pages, it gives you the exact part numbers Case used on the assembly line, not some third-party cross-reference that swaps a bushing for a bolt. No guesswork. You want to order a new stabilizer cylinder? You turn to page 265B and read the factory part number. That’s it.

Engine Sub Assemblies: Cylinder Block and Head

The engine section starts on page 17 with the block, cylinder sleeves, and head. If you’re pulling the head on a 680CK, you need the correct gasket kit – page 23 lists the service gasket kit number. The catalog shows every component: balancer and oil pump (page 23), camshaft (page 19B), crankshaft and flywheel (page 19), and the fuel injection system including the injection pump and drive (page 35). Don’t trust an aftermarket manual that lumps all Case diesels together – the 680CK uses a specific injection pump drive, and this catalog shows the parts breakdown right down to the pump mounting bolts.

Where Do You Find the Backhoe Control Console Parts?

Turn to page 189 for the control console and access covers. The backhoe controls are complex – you’ve got the boom lock, bucket linkage, and swing controls all running through that console. This manual breaks it down into exploded diagrams with callouts for every lever, bushing, and seal. Need the decals for the control panel? Page 187B lists the backhoe control decal kit. That kind of detail saves you from ordering a whole console assembly when you just need a worn-out bushing.

398 Pages of Factory-Correct Part Numbers

Every page in this catalog came from the original Case A1222 publication. The alphabetically indexed sections let you find anything quickly: air cleaners (page 63), alternator mounting parts (page 65), or the brake slack adjusters (page 95). I’ve seen reprint catalogs that flip the left and right steering cylinders on page 125 – this original doesn’t make that mistake. When you’re a shop charging by the hour, you can’t afford to install a wrong part. This catalog pays for itself on the first job.

The hydraulic cylinders alone are worth the price. Pages 253 through 271B cover every cylinder on the machine: boom, bucket, dipper, stabilizer, steering, swing, and the loader clam. Each cylinder has a separate exploded diagram with part numbers for seals, rods, and pistons. For a 50-year-old backhoe, cylinder seal leaks are common. With this manual, you order the right seal kit the first time, not the second.

Understand the Hydraulic Cylinders Before You Order

Don’t pull a cylinder apart without knowing what you’re getting into. The hydraulic circuits section (pages 195-211D) maps out the lines for the backhoe boom, crowd, bucket, stabilizer, swing, and the extendable dipper. If your 680CK has the Hydra-Guide option, that’s covered too. The parts catalog doesn’t give you repair procedures – that’s the service manual’s job – but it does show how each hose connects and what fitting goes where. When you’re replacing a blown hose on the loader lift cylinder (page 257), you can trace the entire circuit back to the control valve.

OEM vs. Aftermarket: Why the Factory Print Matters

I’ve had customers bring in aftermarket parts catalogs that claimed to cover the 680CK but used generic illustrations and wrong part numbers. One guy ordered a “compatible” brake chamber from a copy-cat book – it didn’t fit because the mounting bolt pattern was off by a quarter inch. This catalog is the real deal: printed by Case in 1972, scanned from an original copy, no reprint errors. Every page number, every callout, every superscript is exactly as Case intended. If you’re rebuilding a vintage machine, you owe it to yourself to use the source the factory used.

Related manuals you might need: Case CX160B 2007 Parts Catalog – OEM Undercarriage Hydraulics, Case CX27B 2007 Parts Catalog – OEM Factory Specs for Mini Excavator, and Case CX40B 2010 Parts Catalog – OEM Factory Spec Data. For broader context on construction equipment documentation, see the Automotive Industry Overview and also check out Automotive Industry Overview for how manufacturers standardize parts catalogs.

FAQ – What You Need to Know

Does this manual cover the engine completely?

Yes – pages 17 through 23 detail the block, head, crankshaft, camshaft, pistons, and oil pump. Every part number for the diesel engine is listed.

Will this parts catalog work for my 680CK if the serial number is before 9111009?

It will cover most components, but some parts changed after that serial number break. The catalog explicitly states it covers S/N 9111009 and after. For earlier machines, you’d need the previous edition. However, many drivetrain parts are the same – check the axle section (pages 89-95B) and transmission parts (page 71) – but always verify with your machine’s actual serial number. If you’re ordering a backhoe bucket, the buckets section (pages 183-187) shows different part numbers for the 1-1/4 cu. yd. and 1-3/4 cu. yd. buckets; those are driven by bucket type, not serial number range. Use the exploded diagram to identify your bucket’s weld pattern before ordering teeth or cutting edges. I’ve seen people order the wrong bucket cylinder because they assumed all 680CK buckets were the same – they aren’t. The manual saves you that headache.

Don’t rely on online parts lookups that may have been transcribed by someone who never held a wrench. Get the original factory documentation that shows every part, every revision, every torque value. Access the Factory Manual now and start your rebuild with the right numbers.