Description

Bantam T-451, C-451 Parts Catalog

If you’re chasing a mystery part number for a Bantam T-451 or C-451 excavator, you already know the drill: call three dealers, get three different answers, then gamble on a used part that may or may not fit. That’s a waste of your time and your customer’s money. I’ve been turning wrenches for 28 years—ASE Master, six bays in San Antonio—and I can tell you that the only way to get the right part the first time is with the factory Bantam T-451, C-451 Parts Catalog. This is a genuine 135-page OEM document, not some reprint cobbled together from blurry scans.

Page 3 of this catalog lays out the entire Group Index—twelve groups covering everything from the main frame to the stabilizers. That means you can jump straight to the section you need without flipping through 130 pages of guesswork. Group 1 covers the main frame, counterweight, fuel tank, and Rotek lubricator. Group 2 gets into the engines, engine controls, clutch, and gear reduction unit. Group 3 is the hydraulic system. Group 6 covers the electrical system. Every group has its own parts list with exploded views and part numbers specific to the T-451 and C-451.

Group 1: Main Frame, Fuel Tank, and Rotek Lubricator

Look at page 4 of the PDF. You’ll see a breakdown of the main frame components for both models. Part numbers like F43388 (main frame for T-451 prior to serial 1207) and A18288-1 (battery bracket for GM/Ford vs. Cummins) are listed with quantities and descriptions. The fuel tank section includes fill neck, cap, baffle, sending unit—all with OEM Bantam part numbers. If you’re replacing a Rotek bearing, the catalog gives you the specific capscrew grades (Grade 8, 5/8 UNC vs 7/8 UNC) and washer sizes. That’s the kind of detail you don’t get from an aftermarket parts list.

Engines and Electrical: Getting the Right Part Number

Group 2 covers the engine controls and clutch. Group 6 is the electrical system. You’ll find starter, alternator, wiring harness, and switch part numbers broken down by model. This catalog doesn’t tell you how to rebuild the engine—that’s what the service manual is for. But when you need the correct oil pan gasket or a specific solenoid, this is the reference. The Koehring Bantam S488 S588 S688 Parts Catalog covers a different series, but the T-451/C-451 catalog is model-specific. Don’t mix them up.

Does the Hydraulic System Section Confuse You?

Group 3 (hydraulic system) can be intimidating with all the pumps, valves, and hoses. But this catalog uses a logical group index and clear part-number referencing. Each hydraulic component—from the main pump to the pilot control valves—is listed with its Bantam part number. If you’re tracking down a leak and need the right seal kit, you can cross-reference the part number from the exploded diagram. That’s a hell of a lot faster than pulling a hose and running to the parts store with no reference.

12 Groups Cover Every System

The catalog is organized into 12 numbered groups: 1 Main Frame/Fuel Tank, 2 Engines/Clutch, 3 Hydraulics, 4 Swing Speed Reducer, 5 Cab/Seat/Controls, 6 Electrical, 7 Accessories, 8 Back Hoe (highlighted in yellow in the PDF), 9 Attachment Options, 10 Crawler, 11 Buff Crawler Hydraulics/Controls, 12 Stabilizers. That covers the entire machine. You’re not left guessing which group a part falls under—the index on page 3 tells you exactly where to go.

Why OEM Documentation Beats Aftermarket Parts Lists

I’ve seen too many aftermarket catalogs that use generic part numbers or skip the serial number breaks. The Bantam T-451 and C-451 have specific serial number ranges (e.g., main frame changes at serial 1207, Rotek bearing changes at serial 207). This factory catalog captures those splits. The part numbers are genuine Bantam/Koehring numbers, not cross-references that may or may not work. If you’re serious about keeping an excavator running—whether it’s on a construction site or a farm—you need the real thing. For a broader understanding of how OEM documentation supports heavy equipment reliability, check out the Automotive Industry Overview on proper part sourcing.

Who Needs This Catalog?

DIYers who own a T-451 or C-451 and want to order parts without the dealer markup. Fleet mechanics maintaining a mixed fleet of Bantam excavators. Shop owners who need a definitive parts reference for billing and ordering. This catalog is not a repair manual—it’s a parts list. You use it before you buy anything. It saves you the headache of returning a wrong part that you swore was correct.

Does this catalog include torque specifications?

No. This is a parts catalog, not a service manual. It lists part numbers, quantities, and exploded views. Torque specs are in the service manual. That said, knowing the exact OEM part number for a bolt often tells you its grade and size.

How do I read the part numbers in the tables?

Each table has columns: Ref. No., Part Number, Quan. Req’d, and Name/Description. The part number (e.g., F43388) is the key. Always include the Bantam serial number when ordering. The catalog shows serial number breaks (e.g., “BEG. SER. 1201” vs “PRIOR SER. 1207”). Match your machine’s serial to the correct part. For example, the fuel tank sending unit on page 1.2 uses part number 26996 with a gasket. Don’t substitute aftermarket senders without verifying the flange pattern and resistance range.

If you’re tired of chasing ghost part numbers and want a single source of truth for your Bantam T-451 or C-451, Access the Factory Manual—the genuine OEM Parts Catalog in PDF format, all 135 pages, ready to search and print. Related manuals for other Bantam models include Koehring Bantam C-744 Parts Catalog and Bantam TK-450 Parts Catalog – OEM Factory Parts List.