Description

Bobcat LT112, LT123, MX112, LT203, LT204 2001 Parts Catalog – Volume 6 Attachments

You ever order a hydraulic motor seal kit for a LT112 trencher and get the wrong bore because the aftermarket catalog had a typo? I have. Wasted half a Saturday waiting on the right part. That’s why I keep a factory Bobcat parts catalog on the bench. This one is Volume 6 of the official 2001 parts manual set – covers the attachments for LT112, LT123, MX112, LT203, and LT204. 395 pages of exploded views and genuine part numbers. No reprints, no scanned junk from some third-party warehouse. This is the OEM print Bobcat released, P/N 6901467.

Before you tear into that trencher undercarriage or swap a vibratory roller motor, you need to know exactly which spacer kit or tooth assembly fits. The aftermarket guys will sell you a “universal” chain kit that leaves you digging for half-inch shims. Not here. Every chain, tooth, hydraulic motor, and draining group is listed with the correct Bobcat number. Page 2 gives you the volume index – you can see that Volume 6 contains TRENCHERS, TRENCH COMPACTORS, and VIBRATORY ROLLER. That’s the scope. Nothing else.

I’ll be blunt: if you’re working on a LT112 undercarriage, you don’t need a generic “trencher parts” diagram from some third-party manual site. You need the specific draining group, hydraulic circuitry, and motor breakdown from this catalog. The LT112 section starts with LOADER X-CHANG FRAME, then digs into UNDERCARRIAGE – LT112, EXCAVATOR MOUNTING FRAME, DRAINING GROUP, HYDRAULIC CIRCUITRY, and HYDRAULIC MOTOR. Each one has its own page range. Page 3 lists the exact contents: you can find the LT112 undercarriage pages 11-302 (that’s an 11-page spread, not 300 pages – the format is page ranges for each subsection). That level of detail saves you from flipping through a 1,000-page haystack.

LT112 Undercarriage: Draining Group and Hydraulic Motor Parts

If you’re rebuilding the LT112 trencher’s hydraulic motor, you need the right seal kit and shaft. This catalog gives you the exploded view with part numbers for the HYDROSATIC MOTOR – LT112 & MX112 TRENCHER section. It also covers the SPACER KIT and TOOTH KITS for both models. You’ll find the same granularity for the LT203 and LT204 trenchers, including side shift cylinders and valves. No guessing – you either have the correct part number or you don’t. I’d rather spend five minutes looking up the right part than two hours making the wrong one fit.

MX112 Trencher Chain & Tooth Assembly – Don’t Play the “Fit” Game

The MX112 shares some chain and tooth assemblies with the LT112, but not all. The catalog has a dedicated section: “LITE & MX112 TRENCHER – CHAIN & TOOTH ASSY”. That’s where you’ll find the correct chain pitch, tooth type, and spacer dimensions. If you mix up the MX112 chain with a LT123 chain, you’ll chew up the sprockets in under an hour. The parts manual lists every link, every tooth insert, and the spacer kit that keeps the chain tracking straight. Page numbers for those subsections are in the 40-50 range. Cross-reference with the LT203 section if you’re swapping attachments – the LT203 uses a different side shift kit and valve.

LT203 and LT204 Trench Draining Groups – Where to Find the Correct Parts

Both the LT203 and LT204 trenchers have their own DRAINING GROUP, HYDRAULIC CIRCUITRY, and BOOM CYLINDER sections in this catalog. The LT203 front-frame trencher includes SIDE SHIFT KITS, CYLINDER, HYDRAULIC MOTOR, VALVES, and CHAINS & TEETH. Each subsection has its own page range – for example, HYDRAULIC MOTOR – LT203 TRENCHER shows up on pages 61-61 (single page, but that’s enough for a clear exploded view and part list). The LT204 mount frame section mirrors that but with different part numbers for the boom cylinder. You won’t find that distinction in any aftermarket compilation.

Why This OEM Parts Catalog Beats Aftermarket CD-ROMs

I’ve seen “universal” parts manuals that claim to cover Bobcat attachments but group all LT models under one generic diagram. That’s how you end up with a LT204 valve body that doesn’t match the porting on your machine. This 2001 OEM catalog was printed by Bobcat Company in the USA. It’s the same binder the dealer uses. Every part number, every assembly, every variation is spelled out. The hydraulic circuitry for the LT303 trencher is different from the LT213 – and the catalog shows both. For background on why OEM documentation matters in heavy equipment, check this Automotive Industry Overview. The same principle applies to construction attachments: accuracy saves money.

Related manuals you might need for a complete Bobcat library: Bobcat Parts Manual Volume 6 Trenchers Compactors Rollers 2001 (this is the same manual – just in case the link consolidates), Bobcat T3571, T3571L 2005 Parts Catalog – OEM Factory Specs, and Bobcat S/N 5310, S/N 5309 2005 Parts Catalog – OEM Factory Specs. Each one is a direct OEM PDF, not a reprint.

FAQ

Is this a service manual or a parts catalog?

It’s a parts catalog. You won’t find torque specs or repair procedures. You will get the exact part numbers and exploded views for every component in Volume 6 attachments.

Does it include torque specifications?

No. This manual is strictly for parts identification. For torque specs you need the corresponding service manual for the host machine.

What models are covered in this 2001 parts catalog?

LT112, LT123, MX112, LT203, and LT204 trencher attachments. Also includes trench compactors and vibratory roller components under Volume 6.

Can I use this catalog for LT213 or LT303 trenchers?

Those models appear in the table of contents (LT213 and LT303 are listed later in the same volume) but the catalog primarily covers LT112/123/MX112/203/204. Check the page index for LT213 sections – they start after LT204.

Don’t waste time chasing parts that don’t fit. Access the Factory Manual and get the right Bobcat numbers for your LT112, LT123, MX112, LT203, or LT204 attachment. One access, 395 pages, no fluff. Automotive Industry Overview – that’s just context; the manual is what you need.