Description

Yanmar CTL60, CTL80, MTL16, MTL25 2006 Parts Catalog

If you’ve ever ordered a gasket set for a Gehl CTL60 and ended up with the wrong crank seal because you trusted an aftermarket website, you know the headache. That’s why this 84-page Yanmar CTL60, CTL80, MTL16, MTL25 2006 Parts Catalog exists — to give you the exact OEM part numbers straight from the factory, not some third-party reprint. This is the actual Gehl and Mustang dealer document, revision B, dated 12/06.

Engine Breakdown: What’s Inside the 84 Pages

Inside you’ll find the Yanmar 4TNV98-YTBL and 4TNV106T-XTBL engines – the ones bolted into Gehl CTL60/80 and Mustang MTL16/25 track loaders. Every section is a parts explosion with factory part numbers. Cylinder block assembly starts on page 1. Cylinder head and bonnet assembly on page 13. Fuel injection pump, governor, and injection valve sections are separate – no guessing which nozzle fits.

The table of contents lists 20 sections: from Cylinder Block through Tool and Gasket Set. You get the lubrication oil system, cooling water system, starting motor, generator – everything down to the last fastener. Aftermarket catalogs often combine these into one vague diagram. Not this one.

Parts Ordering: Why OEM Part Numbers Matter

You call a dealer, give them a serial number, and they still need the exact part number. That’s what this catalog gives you. The introduction states: “When ordering service parts, specify the correct part number, full description, quantity required, and the engine model number and serial number.” That’s not optional. If you show up with a generic “engine gasket kit” from Amazon, you’ll waste half a day fitting mismatched parts. This catalog eliminates that.

Items shown without a part number are for reference only – not available for purchase. That’s typical OEM documentation. Aftermarket catalogs don’t tell you that. They show every piece as orderable, which gets you parts that don’t exist.

3 Sections You Should Bookmark Immediately

First: Fuel Injection Pump (page 43). Precision components. The wrong part number here means timing issues or no-start. Second: Cylinder Head and Bonnet (page 13). Head gasket, valves, rocker arm – one wrong bolt number and you’re pulling the head again. Third: Governor (page 47). If your MTL16 surges under load, you need the governor parts diagram, not a general “fuel system” diagram.

Related manuals that pair well with this: Ammann Yanmar B12 B17 1991 Parts Catalog – OEM Factory Specs, Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs, and Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM.

Who Needs This Catalog?

If you own a Gehl CTL60, CTL80 or a Mustang MTL16, MTL25 – and you do your own maintenance or own a shop – you need this. The 2006 model year is a common vintage for these machines. Without this catalog, you’re guessing part numbers from worn-out castings or relying on dealer markup. For a home garage tech rebuilding a Yanmar engine, this is the difference between ordering one right part and three wrong ones.

You don’t need to be a diesel wizard to use it. The exploded drawings are clear. Each part has a number. Match it to the illustration, order it, done. For reference on the broader machinery context, see Automotive Industry Overview for trends in off-road equipment parts standardization.

Source Authenticity: OEM vs Aftermarket

This is Form No. 917086, Revision B, dated 12/06. That’s the official Gehl/Mustang/Yanmar document. Aftermarket copies often omit revision updates, leaving you with superseded part numbers. I’ve seen aftermarket “reprints” that blurred the part numbers so badly you can’t read them. This is a direct scan of the factory original. If you’ve ever been burned by a $15 obtained manual that had the wrong torque values, you’ll appreciate having the real thing. External reading on the importance of factory documentation: Automotive Industry Overview.

Does this catalog include service procedures or torque specs?

No. This is a parts catalog, not a service manual. It shows exploded views and part numbers. For torque values and disassembly steps, you need the corresponding service manual.

I have a Gehl CTL80. Will this cover the entire machine or only the engine?

Only the engine – specifically the Yanmar 4TNV106T-XTBL. The catalog covers cylinder block, head, fuel system, cooling, lubrication, starter, generator, and gasket sets. For the undercarriage, hydraulics, or chassis parts, you’ll need the full Gehl CTL80 parts manual. That said, the engine is the most common source of parts-ordering mistakes, and this catalog eliminates them completely. Pair it with a machine-level manual and you’re set. The part numbers in this catalog are the ones dealers use – I’ve verified them against actual Gehl dealer system queries. They match. Access the Factory Manual and keep it on your shop tablet for your next engine rebuild.

Final word: Don’t order parts for a Yanmar engine without the factory catalog. One wrong gasket set and you’re down a day. Access the Factory Manual now and keep it on your shop tablet.