Description

Caterpillar D6H 2010 Parts Catalog – Factory OEM for PA56 Winch

If you own a Caterpillar D6H and need to install or rebuild a PA56 winch, using a reprinted parts list from some third‑party site will cost you time and money. I have seen mechanics order the wrong stud because the aftermarket drawing showed a different length. This Parts Catalog from 2010 is the same one Caterpillar dealers pull up on SIS. 48 pages of factory part numbers, hardware grades, and installation graphics. No photocopies. No re‑typed lists.

Winch Installation Parts: What the Manual Covers

This is not a general D6H shop manual. It is the official installation and parts document for the PA56 winch on a D6H PS Trac. The manual breaks down the mounting group (page 2) and lists every individual part with Caterpillar numbers, quantities, and notes. You get the studs (119‑0171, 133‑9224), O‑rings (8S‑5654), retaining rings (002‑3455), PTO shaft (118‑6595), coupling (118‑5863), capscrews (7X‑0405), and both RH and LH adapters (118‑6929 / 118‑6930). Each fastener shows thread size and grade – for example, the 1‑8 x 3 1/4 Gd8 stud. That level of detail keeps a job from turning into a parts‑run nightmare.

Why Factory OEM Trumps Aftermarket Reprints

Aftermarket parts catalogs often combine several model years into one drawing, then change the reference numbers. I have seen a “universal” PA56 list call for a 5/8‑11 bolt where the factory spec is a 1‑8 x 2 3/4 Gd8 capscrew. That mismatch will either strip the thread or leave you with a loose winch mount. This manual comes from the official Caterpillar SIS database – Media Number SEBP2370‑01, updated 04/08/2001. The graphics are OEM production prints, not re‑traced artwork. If you need a part that is no longer available, the OEM number gives your dealer the supersession path. A third‑party list cannot do that. Check out the Caterpillar C15 2006 Parts Catalog – Factory OEM 884 Pages for another example of factory‑grade documentation.

3 Reasons to Choose OEM Documentation

1. Fastener specs match the factory torque chart. Without the correct grade and thread pitch, you cannot torque the bolt properly. A Gd8 stud has a specific yield strength – use a lesser grade and the joint loosens. 2. Graphics show routing for clips and straps. The manual includes clips like 4F‑3154, 8T‑1401, and 8Y‑4077, plus strap 7K‑1161. You see exactly where each one goes on the tractor rear face. 3. SMCS codes are printed. That lets you cross‑reference to the Caterpillar service information system if you need repair procedures. Would you trust an aftermarket list that leaves out SMCS codes? I would not.

Who Needs This Parts Catalog

If you are a home‑garage mechanic pulling a PA56 winch off a salvage D6H, you need this manual. If you work at a shop that rebuilds construction equipment and the owner is tired of you guessing which spacer (2S‑6461 or 2S‑6941) goes where, this stops that waste. The manual is also for owners who want to verify parts before ordering – you bring the part number to the dealer and get the right box the first time. Beginners should pair this with a factory service manual for the D6H drivetrain, but for winch parts, this is the only source. The Caterpillar Elevated Sprocket Tractors Parts Catalog – 971 Pages covers other tractor models if your fleet is bigger.

Using the Installation Graphics

Two graphics (C957824, C957822) show the winch adapter bracket, differential case views, and cable routing. The manual lists reference numbers for each component – for instance, the “TOP OF RH WINCH ADAPTER BRACKET” view shows exactly how the 4F‑7561 clip and 7K‑1161 strap fasten to the tractor rear face. If you ignore the graphic order and try to assemble the winch mount without the PTO pilot (118‑6537), you will fight alignment for hours. Page 3 lists the entire individual parts group with quantities and note codes. Do you need the hardened washer 119‑1551? It is right there. The Caterpillar Undercarriage Parts Catalog – 866 Pages OEM gives similar detail for undercarriage components.

FAQ

Does this manual cover the D6H engine or transmission?

No. This is strictly the winch installation and parts catalog for the PA56 winch on a D6H PS Trac. Engine, transmission, and drivetrain parts are in separate manuals.

Will the part numbers in this 2010 catalog still supersede to current Caterpillar numbers?

The manual lists SIS part numbers as of 2010. Many fasteners and seals have been updated – for instance, 8S‑5654 O‑ring may now ship as a different number. The OEM number in the book gives the dealer the starting point for the supersession chain. You will still get the correct physical part. I have used this catalog to order a 119‑0171 stud in 2024 and the dealer found it.

Can I use this manual for a D6H without a winch?

No. The content is specific to the PA56 winch mounting group. If you are removing the winch, the graphic will show the blanking plates and caps that seal the PTO opening – that is useful. But for general D6H parts, buy the tractor parts catalog.

Is this a printed book or a PDF format?

It is a digital PDF – 48 pages, high‑resolution black‑and‑white scans of the original Caterpillar document. You can view it on any device, zoom into the graphics, and print individual pages. The access link is sent immediately after purchase.

You have wasted enough Saturday afternoons chasing wrong parts because some online listing showed a generic illustration. The Caterpillar D6H 2010 Parts Catalog puts the factory drawing on your screen – same one the dealer tech uses. Automotive Industry Overview shows how OEM documentation keeps repair costs predictable, and this manual is exactly that. Do not guess. Automotive Industry Overview Access the Factory Manual.