Description

Challenger MT635B, MT800B, MT845B, MT855B, MT865B 2005 Parts Catalog

I’ve been turning wrenches for 28 years, and I can tell you: ordering the wrong part because you guessed the number costs more than this manual. You pull a fuel line off a Challenger MT865B and find the thread pitch is different? That’s a $50 mistake in return shipping and a day of downtime. This 2005 Parts Catalog from Challenger covers the MT635B, MT800B, MT845B, MT855B, and MT865B track tractors. It’s 1219 pages of factory exploded diagrams and part numbers. Not a reprint. Not a third-party compilation. Original OEM print.

Machine Arrangement and Base Unit Part Numbers

Turn to the Machine Arrangement section and you’ll find separate base unit assemblies for each model. The MT845B uses base unit AR-MT845B – 501589D1, while the MT855B gets 501590D1. You don’t cross-reference off a generic chart. You pull the exact exploded view for your tractor serial number range. Need the air cleaner for an MT855 or MT865? Page 149 shows the basic assembly – 196-4056. For the muffler group on any model, page 159 lists 501577D1. Those page numbers come from the factory index, not some typist guessing.

Why a Factory 2005 Parts Catalog? Aftermarket Can’t Match This

Aftermarket catalogs merge models together to save paper. That means you get a diagram that says “MT800B series” and you have to guess which bracket fits your MT635B. This original Challenger catalog breaks out every model: MT835B (BAM6-Up), MT845B (BBP6-Up), MT855B (BCC6-Up), MT865B (BD56-Up), and even the MT875B (BPP6-Up). Each has its own base unit arrangement with unique part numbers. The alphabetical and numerical indexes at the front let you locate any part by name or number in seconds. No flipping through 200 pages of undifferentiated parts.

1219 Pages of Illustrated Breakdowns

Every system is covered: Engine Installation Arrangement includes accessory drives, alternator mounts, refrigerant compressor mounting (187-1792). Cooling System has fan groups (206-6397, 502738D1), coolant lines, expansion tanks. Air Inlet and Exhaust System lists air cleaner, muffler, dust ejector lines. Fuel System gives you tank groups (186-5432, 196-7742, 500016D1, 206-8891) and lines. Electrical & Starting runs from battery wiring groups to starter motors, fuse blocks, lighting options – 12V standard, deluxe, HID, and signal lighting. Each exploded drawing shows every nut, bolt, and seal with an item number that matches the parts list on the facing page.

Locate Parts Fast with the Numerical Index

You’ve got a part number from a faded label? Flip to the numerical index in this 2005 catalog. It tells you the page and grid location where that number appears. Hardware like bolts, nuts, cotter pins are listed indented under the assembly they belong to. That means you don’t order a generic M12x1.75 bolt when the factory called for a shoulder bolt. You get the exact OEM fastener. Safety note: never assume a bolt is the same across models – the machine arrangement section lists base units separately for each model for a reason.

Fuel System: Tank GP and Lines GP Part Numbers

The Fuel System section in this Parts Catalog is solid. It covers the decelerator control (152-0447), governor control (207-2031), water separator and fuel filter (502352D1), and multiple fuel line groups (501582D1, 502735D1, 197-1317). The tank groups are broken out by capacity and mounting – if your MT800B has the 179-2182 tank and mounting group, you’ll see every bracket, cap, and pickup tube. No guesswork.

For more on operator instructions, see the Challenger MT635B MT645B MT655B MT665B Operator Instruction. If you need the CVT parts for related models, check Challenger MT 655B 665B TECHstar CVT Parts). The braking system section of the MT800 Series is also available separately at Challenger MT800 Series Track Tractors Parts Manual – Section: Braking System.

For general background on agricultural machinery documentation, you can reference the Automotive Industry Overview and check the Automotive Industry Overview for standards.

No guesswork.

When you’re working on a tractor that costs more than a house, you don’t gamble on parts. You use the factory catalog that shows you the exact assembly from the Challenger line. Access the Factory Manual and get your Challenger back in the field.

How many pages does this manual have?

1219.

Can I find wiring diagrams in this parts catalog?

No. This is a parts catalog, not a service manual. It shows exploded views and part numbers. For wiring diagrams, you need the service manual. But the electrical section does list battery wiring, control GP-HITCH, lighting GP etc. with part numbers for each harness and connector.

Does it cover the MT875B?

Yes, the MT875B is included (serial BPP6-Up). Check the machine arrangement sections for base unit AR-MT875B – 501592D1 and others.

What is the publication date?

November, 2005.