Description

Challenger 660 2006 Parts Catalog – OEM Factory Manual

If you’ve ever ordered a part for a Challenger 660 combine from an aftermarket list and got the wrong bearing, seal, or hose, you know exactly why this Parts Catalog exists. The 2006 edition runs 597 pages of factory-sourced exploded views, item numbers, and part numbers that match exactly what Challenger bolted on at the plant. No guesswork, no cross-referencing three different websites hoping the numbers line up. This is the document the dealer parts counter uses — and now you can have it on your bench. Challenger MT 655B, MT 665B, MT 600B 2005 Parts Catalog – OEM Factory Manual covers similar models but if you need the 660 specifically, this is the one.

Engine & Mounts: Finding the Right Block Parts

The ENGINE section is broken into sub-sections like ENGINE & MOUNTS, AIR INTAKE & EXHAUST, MAIN ENGINE DRIVES, COOLING SYSTEM, FUEL LINES. Each sub-section has its own illustration and corresponding parts list. For example, if you need the radiator slinger or rotary screen, those are listed under COOLING SYSTEM. Page numbers are referenced in the numerical index at the front. Want a fuel line? There are five Fuel Lines sub-headings under ENGINE — each covering a different routing. Don’t assume all fuel line parts are the same; the catalog separates them by location. OEM Challenger MT635B-865B 2005 Parts Catalog follows a similar structure but the 2006 660 catalog has its own revisions.

Cooling System: Radiator Slinger and Rotary Screen

Cooling system failures on a combine mean downtime in the middle of harvest. The COOLING SYSTEM section of this catalog covers everything from the radiator slinger to the rotary screen. You get the exact part numbers for the fan hub, belts, and pulley assemblies. The illustrations show the assembly order — critical when you’re replacing a fan drive and need to know which spacer goes where. Aftermarket catalogs often skip the slinger assembly details; this one doesn’t. 597 pages of that kind of detail.

7 Major Sections for the 660 Combine

The catalog is organized into nine main groups: DECALS & LABELS, ENGINE, CAB, ELECTRICAL, FEEDER, LATERAL TILT, PROCESSOR, CHOPPER & SPREADER, plus the alphabetical and numerical indexes. Each group is broken into subsystems. The CAB section alone covers HVAC, air conditioner, heater lines, seat, control consoles, mirrors, wiper, lights. If you need a door seal or a console screw, it’s in there. The ELECTRICAL section has harnesses, switches, alternator (150 amp), monitoring systems, beacon lights, high intensity lighting. The PROCESSOR section covers front beater, main countershaft, concave & controls, rotor, rotor drive, separator grates. That’s the level of granularity you get.

Where Do I Find the Part Number? – Index Structure

At the beginning of the manual are two indexes: alphabetical and numerical. The alphabetical index lists major groups and assemblies — type in “rotor” and find the page group. The numerical index takes a part number and tells you which page and grid location it appears on. That means if you have a broken part with a number still legible, you look it up in the numerical index and flip to the illustration. No scrolling through generic PDFs. The illustrations are on the left page, text on the right — standard OEM format. Common hardware like bolts, nuts, cotter pins are listed indented under the item they attach to. Only order them if the description says “(Incl.)”. Challenger MT800 MT635 MT845 MT855 MT865 2005 Parts Catalog OEM has a similar index setup, but the 660 catalog is specific to this model.

OEM vs Aftermarket: Why This Catalog Wins

Aftermarket parts catalogs are often compiled from multiple sources, sometimes with misprints or superseded numbers. The OEM factory manual from 2006 is the reference that Challenger dealers used when the combine was new. The part numbers are the ones that go into the manufacturer’s inventory system. When you order a part from a dealer using these numbers, it will fit. If you’re working on a 660 and you’ve been burned by aftermarket catalogs listing the wrong seal for the rear rotor housing, you understand the value of the original. Automotive Industry Overview gives context on how OEM documentation differs from aftermarket — but the short version is: OEM parts catalogs are written by engineers, not by copywriters.

Frequently Asked Questions

Does this catalog list service procedures or only part numbers?

Only part numbers and exploded views. This is the Parts Catalog, not a service manual. For repair steps, get the service manual.

Can I use this to order parts for a 2005 Challenger 660?

The 2006 catalog covers the 660 combine model year 2006. Some parts may be identical to 2005, but check the revision history. If your serial number falls within the 2006 range, these numbers are correct. The engine, cab, and processor sections are model-specific.

How do I read the illustration numbering?

Illustrations show item numbers that correspond to the “item” column on the opposite text page. Part number, quantity, and description follow. Common hardware indented beneath an item is not included unless specified “(Incl.)”. The numerical index at the front lets you search by part number.

Is the PDF searchable?

Yes, the digital version includes OCR for text search. You can search by part number or description. The alphabetical and numerical indexes are also bookmarked for quick navigation.

After spending 28 years turning wrenches, I’ve learned that the right part number saves you a return trip to the dealer and a lost day. This catalog is the tool that gets you that number. Access the Factory Manual and keep it on your tablet or print the pages you need. Your combine will thank you when the part shows up and fits the first time. Automotive Industry Overview is worth reading if you want to understand why OEM documentation matters, but for now, get the catalog and get to work.