Description

Case 34, 680 CK 1967 Parts Catalog – OEM Part Numbers and Exploded Views

I’ve been turning wrenches for 28 years, and I can tell you nothing kills a job faster than grabbing the wrong part because some aftermarket site had a blurry drawing and a part number that doesn’t match. You order it, it don’t fit, you lose half a day. That’s exactly why this 1967 Case 34, 680 CK 1967 Parts Catalog matters. It’s the same paper the Case dealers used back when these machines were new. No reprints, no guesswork—just factory exploded views and the part numbers that actually bolt up.

What This 1967 Parts Catalog Actually Covers

You get 68 pages of genuine Case documentation for the Model 34 backhoe mounted on the 680 CK tractor. The catalog starts with a serial number location guide and a general information section that tells you how to read the indented parts list, how “Right Hand” and “Left Hand” are determined (face the backhoe, not the loader), and how to order parts correctly. Then it dives into the meat: boom assemblies on page 7, bucket sections on pages 15 and 17, swing tower and dipper pages, control consoles for both individual lever (foot swing) and twin lever setups, cylinder breakdowns for boom, bucket, crowd, stabilizer, and swing—each one with its own exploded view. The backhoe control valve sections run from page 47 to page 55, and there’s a hose-and-fitting conversion table plus a numerical index at the back. If you’re rebuilding a 680 CK backhoe, this catalog gives you the factory part numbers for every seal, pin, bushing, and cylinder assembly.

Serial Number Location and Correct Ordering

One page in the front shows exactly where to find the backhoe serial number (look for B672654 stamped on the frame). Without that number, you’re ordering blind. The manual stresses that orders must include the correct part number, full description, quantity, machine model and engine model, machine and engine serial numbers, shipping method, and address. That’s not bureaucracy—that’s how you avoid getting a boom cylinder for a 34 when you need one for a 34S. I’ve seen guys skip this step and end up with a $400 paperweight.

The OEM Difference: Why Case Documentation Beats Aftermarket

Aftermarket parts catalogs often reprint old numbers or skip revisions. Case updated these pages when the machine changed—the “Changes” section explains that revised pages get the same page number but a new issue date. You have to insert those updates as soon as you get them. This original 1967 printing is the baseline. Every reference number in the exploded views matches a row in the parts list: ref number, part number, description, quantity. Nothing is labeled “equivalent” or “interchange.” You get the exact CASE service part. Need a socket assembly for the rear steering cylinder? Part number A 56208. That’s real data, not a guess. OEM documentation like this is what you want when you’re stacking hours on a machine that earns your living. For more on why factory specs matter in the Automotive Industry Overview, check the history of standardization.

Using the Alphabetical and Numerical Indexes

Flip to the front, and you’ll find an alphabetical index organized by component: Boom, Bucket, Console, Couplings, Cylinders, Decals, Dipper, Hydraulics, Linkage, Mounting Frame, Stabilizer, Swing Tower, Tools, Valve. Each entry points to a page number. At the back, a numerical index lists every part number and the page where it’s used. If you’re standing under a backhoe with a split stabilizer cylinder, you look up “Cylinder – Backhoe, Stabilizer” in the front index—pages 33 and 35. Match the reference number in the illustration to the part number in the list. It’s the same process mechanics have used for decades. The Automotive Industry Overview at Automotive Industry Overview confirms that OEM exploded-view parts catalogs have been the standard for service shops since the 1960s. This catalog follows that proven format.

Who Actually Needs This Parts Catalog?

If you own a 680 CK tractor with a 34 backhoe, you need this. If you’re a home garage enthusiast trying to rebuild a backhoe without a dealer breathing down your neck, this saves you from buying three different “universal” seals that don’t fit. Beginners: don’t think you can skip the serial number step. The catalog is written for a mechanic who already knows how to read a parts list—but if you take your time, the exploded views lay everything out clearly.

Does this catalog include torque specs or repair instructions?

No. This is a parts catalog, not a service manual. It gives you exploded views, part numbers, quantities, and ordering info. Torque values, fluid capacities, and disassembly procedures are in the separate service manual for the 680 CK.

Can I use this catalog for a 34 backhoe on a different tractor model?

Only if the backhoe is mounted on a 680 CK. The catalog is specifically written for the Model 34 backhoe as equipped on the 680 CK. Tractor serial number and backhoe serial number must match the range listed. Using it on a different tractor could lead to wrong part numbers.

Are the exploded views clear enough for a beginner?

The illustrations are black-and-white line drawings typical of 1967 OEM catalogs. They show each part in its relative position with reference numbers. If you can match a number in the picture to a number in the list, you’ll identify the part. Some beginners find them less “user-friendly” than modern computer drawings, but once you get the hang of the indented description logic, it clicks.

How do I order parts using this catalog after I access it?

Find the part number from the catalog, then contact a Case dealer or an online parts supplier that sells genuine Case parts. Provide the part number, description, quantity, and your machine serial numbers. The catalog includes a hose and fitting conversion table (page 58) that cross-references old and new part numbers for hydraulic lines.

Here’s the bottom line: if you’re restoring a 680 CK or keeping it running, you need the part numbers that match your machine. This 1967 Case Parts Catalog is the only source that gives you those numbers without aftermarket errors. Don’t waste money on parts that almost fit. Get the factory data. Access the Factory Manual and start ordering the right parts today.

Related Manuals

• Case 33 & 34 Backhoes Parts Catalog A992
• Case 33S and 34 Backhoes Operator’s Manual
• Case CX160B 2007 Parts Catalog – OEM Undercarriage Hydraulics