Description

Shibaura GT141, GT161, GT181, GT201, MM441 2001 Parts Catalog

If you are holding a Shibaura GT141, GT161, GT181, GT201, or MM441 and you don’t have the factory parts breakdown, you are guessing. I’ve seen guys order a “camshaft” and get the wrong one because they read a generic list instead of this 2001 Parts Catalog. This is the original Japanese-English publication – 106 pages of numbered illustrations, part numbers, and interchangeability marks. Not a reprint. Not a third-party cheat sheet. This is what the dealer uses.

I’ll tell you what matters: every section in this book is organized by assembly – Engine, Cooling, Fuel, Transmission, Hydraulics, Mower Deck. You get the exact part numbers for Cylinder, Crankshaft, Camshaft, injectors, water pump, everything. Need a piston ring set for a GT181? You flip to “Crankshaft & Pistons” and the exploded view shows the part number and quantity. No guessing. No cross-referencing aftermarket catalogs that lie.

This manual covers every model variant: GT141A, GT141U, GT161U, GT181A, GT201PA – plus the MM441, MM481, MM601. Engines included: E643, E673, M18, M20. If you work on these tractors, you need the factory breakdown. Period. Use this Wikipedia article on diesel engines for background – but for parts, use this catalog.

Engine Assembly: Cylinder Block, Crankshaft & Camshaft

The “Crankshaft & Pistons” section shows the piston pin, rings, connecting rod, and bearing sets with undersize/oversize codes. The “Cylinder Head” section lists valves, guides, seals, and gaskets. You also get “Crank-case” and “Crankshaft & Camshaft” as separate chapters – that tells you the manual breaks down sub-assemblies so you don’t order twice. The “Oil Pump & Water Pump” page lists the oil pump assembly and gasket – part number 1245-whatever. You won’t find that in a Chilton.

Look at the “Fuel” coverage: “Fuel Line : Diesel” and “Fuel Line : Gasoline” are separate sections. Same for “Wiring Harness : Diesel” and “Wiring Harness : Gasoline”. That level of separation is exactly what you need when you have a GT141 with the E643 diesel and a GT161 with the E673 gas. Mix them up and you’re buying parts that don’t fit. This Wikipedia article on diesel engines won’t help you order the right injection pump – this catalog will.

Cooling System: Radiator, Water Pump, Cooling Cover

The “Radiator” section has the core, cap, hoses, and fan shroud. “Flywheel, Oil Filter & Cooling Cover” groups the cooling fan with the oil filter adapter – shows the part number for the cover gasket. If you have a leak at the water pump shaft, the “Oil Pump & Water Pump” list gives you the seal part number. Don’t buy a whole pump if you only need a seal. That’s the kind of money-wasting mistake this catalog stops.

One thing I like: the manual includes “Interchangeability” marks (A, B, D, E, F, O) in every parts list. That tells you if a new part supersedes an old one and whether they swap straight. Page 2 of the manual explains the marks. If you see “B” – new part substitutes for old but not vice versa. That saves you a phone call to the dealer.

Why This OEM Parts Catalog Beats Aftermarket Lists

I have a stack of aftermarket parts catalogs on my bench. Roll the truck over them and they still won’t match the factory breakdown. This Shibaura book was printed in May 2001 by Ishikawajima-Shimbaura Machinery Co. in Japan. The illustrations are not photorealistic, but they are reference drawings with index numbers keyed to the part numbers. Each part number has a quantity, application serial range, and remarks. For example, the “Injection Pump” section lists the pump assembly, delivery valves, and gaskets with specific engine serial number ranges. Aftermarket catalogs drop those details.

You also get the “Numerical Parts Index” at the end – all part numbers sorted numerically with page references. That alone saves you an hour of flipping.

Who Should Buy This Manual

If you own a GT141, GT161, GT181, GT201, or MM441 – you need this. Home mechanics who rebuild mower decks or swap engines. Small engine repair shops that see Shibaura tractors. Dealers need it for accurate ordering. Beginners? This catalog assumes you know what a crankshaft looks like, but the exploded diagrams teach the assembly order. Pair it with the service manual for torque specs. This is the parts reference – don’t confuse it with a repair manual. But it’s the foundation of any restoration or repair job.

I’ve seen guys buy a “complete gasket set” and get the wrong thickness head gasket because they used an aftermarket list. This catalog lists the specific gasket for cylinder head – part number, quantity 1, application for GT181 gasoline. No ambiguity.

What’s Inside: TOC Highlights

Here are some of the chapters you get:

• Cylinder Block, Cylinder Head
• Crankshaft & Pistons
• Oil Pump & Water Pump
• Timing Gear Case
• Injection Line & Camshaft
• Injection Pump, Injector
• Air Cleaner, Muffler, Starter & Alternator
• Engine Mount (Diesel and Gasoline)
• Crank-case
• Manifold & Carburettor
• Flywheel, Oil Filter & Cooling Cover
• Air Cleaner, Breather & Fuel Filter
• Governor, Ignition, Muffler & Gasket Set
• Starter, Front PTO, Front Axle
• Steering Manual & Power, Power Steering Parts
• Instrument Panel, Chassis & Dashboard (Diesel & Gasoline)
• Prop Shaft, Hydrostatic Transmission, Transmission
• Wheel Shaft Case, Speed Control, Brake
• Hydraulic Piping, Control Valve, Hydraulic Diverter Valve, Lift Cylinder
• Fuel Line Diesel & Gasoline
• Seat, Wiring Harness Diesel & Gasoline
• Three-Point Linkage, Front & Rear Wheels
• Bonnet, Steps & Fenders, Decals, Tools & Accessories
• Mower Deck sections for 44″, 48″, and 60″ decks – gearbox, linkage, blades, pulleys, wheels, decals

That is 106 pages of OEM part numbers.

FAQ

Does this catalog cover the MM441 model?

Yes. The MM441, MM481, and MM601 are included. The cover lists them under the same Parts List code.

Are torque specs included in this parts catalog?

Not for assembly torque. This is a parts catalog – it gives part numbers and quantities. You need the separate service manual for torque values. But this catalog shows you which fastener part number to order if you strip a bolt.

I have a GT201 with the M20 gasoline engine. Will this catalog list the carburetor parts?

Absolutely. The section “Manifold & Carburettor” covers both gasoline and diesel induction components. For the M20, you get the float, needle valve, gasket, and throttle shaft. The interchangeability column shows if parts changed during production.

Can I use this catalog to order parts for a 60-inch mower deck?

Yes. There are dedicated sections: Mower Deck Drive-shaft, Gear-box, Shell, Blades & Pulleys, Wheels, Linkage, and Decals for the 60″ deck. Same for 44″ and 48″ decks. Part numbers are specific to each deck size.

Related Manuals

• Shibaura SX21 SX24 Parts Catalog | OEM Part Numbers
• Shibaura ST440, ST445 2003 Parts Catalog – OEM Factory Part Numbers
• Shibaura ST329, ST333 2002 Parts Catalog – OEM Factory Specs

Access the Factory Manual and stop ordering wrong parts. Have it on your tablet or printed on the bench. You’ll save the cost of one wrong gasket set the first time you use it.