Description

Koehring 6612 Parts Catalog – Factory OEM Parts Reference for Serial #126201-126400

You’ve got a Koehring 6612 in the yard that needs parts. Without the factory document, you’re flipping through aftermarket charts that group things wrong, or worse, ordering a part that won’t fit because a previous owner swapped the pump drive. I’ve been there. This Koehring 6612 Parts Catalog is the genuine OEM release – 92 pages of exploded views, part numbers, and group indexes keyed to serial numbers from 126201 through 126400. It’s not a reprint of a copy. It’s the original factory file used by dealers and shops like mine. Automotive Industry Overview might tell you how machines are built – this tells you exactly which bolt goes where.

The manual is organized by parts groups. Open to page 2 and you’ll see the full index: Crawler & Carbody (Group G), Upper Structure, Turntable, Upper Engine & Fuel Tank, Swing System, Pump Drive, Hydraulic System, Operator’s Cab, Controls, Mirrors, Marking, Heating & Air Conditioning, Electrical System, Tools, Excavator Attachment, and Attachment Options. That covers everything from the carbody to the cab roof. Each group has its own block number and page sequence, so you flip straight to the section you need. No guessing.

Crawler & Carbody Group G – Not Just Track Frames

Group G covers the entire undercarriage. Rollers, sprockets, idlers, track chains, and the carbody weldment. If you’ve got a blown final drive seal or a cracked track adjuster, the exploded view shows the stack-up and gives the factory part number. Aftermarket catalogs often lump idler groups together. This manual separates them by serial number break. If your machine falls in the range, you know the part fits. Period.

Upper Engine, Fuel Tank Group – Fuel System Components

The engine group includes the mounting brackets, cooling package, and fuel tank assembly. Page references start with the group number followed by a sequence (e.g., 3.1, 3.2). Need a fuel return line fitting or the seal for the tank cap? The illustration points to the part number. Fuel system parts are notorious for being misidentified online. With this catalog, you cross-check the part number against the numerical parts list at the front of the manual – it tells you if a supersession exists. Koehring T-S44, 644 1974 Parts Catalog – Factory OEM Parts Reference follows the same indexing logic.

Electrical System: Use the Group Index to Locate Components

Electrical group covers the entire harness, switches, gauges, and starting circuit. If you’re chasing a no-crank condition, you don’t need a wiring diagram – that’s in the service manual. This catalog gives you the part numbers for the starter relay, ignition switch, and fuse block. The group number for electrical is near the back of the index. Each component is numbered and keyed to the page. For older machines like this, many electrical parts are still available from Koehring or aftermarket. But you need the OEM number to confirm fitment.

92 Pages of Exploded Views and Numerical Parts List

92 pages gives you room for every assembly to be drawn and labeled. The numerical parts list in the front runs all part numbers in sequence, referenced to the pages where they appear. That means you can start with a part number from a worn-out sticker and find the illustration. No scrolling through blurry scans. Each page is a clean OEM file. Koehring S-155 1977 Parts Catalog – Factory OEM Parts Reference and Koehring 366 Hydraulic Hoe Parts Catalog – OEM Factory Specs use the same layout.

Why a Factory Parts Catalog Beats Aftermarket

Aftermarket parts books often combine multiple model years or skip serial-number-specific updates. This catalog was printed as a supplement to the operator’s and maintenance manuals. The index says: “This manual lists serviceable parts for EVERY machine built of this model designation.” That means if your 6612 has a product improvement – say a upgraded pump drive – the parts list shows the alternate component with the correct serial number break. You don’t get that from a third-party website. Automotive Industry Overview won’t help you here. Only the factory document does.

Frequently Asked Questions about This Parts Catalog

Does this catalog include repair procedures or torque specs?

No. This is strictly a parts catalog. It lists serviceable parts with exploded views and part numbers. For repair steps, you need the maintenance manual or service manual for the 6612.

What if my serial number is slightly outside the range listed?

Check the parts group index. Some groups cover multiple serial ranges. If your machine is 126201-126400, you’re covered exactly. If it’s outside, the catalog may still be useful as a reference, but verify with a dealer.

Can I use this to order parts from any supplier?

Yes. The OEM part numbers in this catalog are the same Koehring numbers used by dealers and aftermarket distributors. Provide them to your supplier, and they can cross-reference to the correct replacement.

Is this a digital PDF or a physical book?

It’s a digital access – the exact OEM scan. No watermarks, no missing pages. You get all 92 pages as a single PDF file.

If you’re working on a Koehring 6612, you need the right part numbers the first time. Don’t trust a generic lookup. Get the factory document that the engineers who designed the machine approved. Access the Factory Manual now and keep it in your shop tablet or printed out next to the bench.