Description

Dynapac LP8504 Parts Catalog – Factory OEM Spare Parts for Trench Compactor

If you’re ordering parts for a Dynapac LP8504 trench compactor without the factory parts breakdown, you’re asking for trouble. I’ve seen guys order a seal kit from a third-party list, get the wrong dimensions, and then spend two days on the phone with a distributor while a customer’s job site sits idle. That’s billable hours down the drain. This is a Dynapac LP8504 Parts Catalog – 78 pages of OEM part numbers, exploded views, and the actual drawings Dynapac uses to assemble these machines at the factory. You don’t guess with this thing; you match the number, you order, and you move on.

Factory Parts Breakdown for the LP8504

The catalog starts with a clear note: check the serial number on your machine before you flip to any page. Valid from serial number *185010001*- up, and published as issue SLP8504-1EN1 dated 2010-05. That matters because Dynapac made running changes on these trench compactors, and using a part from the wrong revision means returns and rework. Inside you get the full spare parts list for the LP8504 – everything from the Hatz 2G40 engine components down to the hardware that holds the skid plates on. The exploded diagrams group parts by system, and each group has its own page index. Page numbers are printed right on the drawing so you can cross-reference fast.

What Does the 78-Page Catalog Cover?

You get a complete set of group pages covering every major assembly: engine, hydraulic system, drum drive, vibration system, frame, controls. The notes section (marked on page 5) tells you about parts that have been moved or superseded – don’t overlook that. The ordering instructions are printed in five languages, but the part numbers are all numeric. Each callout has a reference to the parts list at the bottom of the page, with remarks column for things like “use with separate kit” or “available only as assembly.” That’s the kind of detail that keeps your repair from turning into a scavenger hunt.

Need to order a new hydraulic filter? Turn to the hydraulic group page, read the part number, and give your distributor that number plus the machine serial. That’s it. No sending pictures to a parts guy who guesses. No cross-checking aftermarket catalogs that list parts for ten different models under one code. This is the original OEM book straight from Dynapac – part of the Atlas Copco Group – and it’s the only documentation they’ve ever issued for this machine.

6-Figure Part Number System for Accurate Ordering

Dynapac uses a six-digit part number system with each number corresponding to a unique drawing. The catalog lists quantities needed per assembly, so you know if the part comes as a single item or in a ten-pack. For example, you don’t want to order one seal when the kit calls for five – the manual shows that in the “Qty” column. I train my junior techs to always read the remarks first. Page 3 shows the engine identification; if your LP8504 has a different engine variant, the part numbers for gaskets and filters will be different. The parts catalog makes that distinction clear.

This manual doesn’t contain repair procedures or torque specs – it’s a parts catalog, pure and simple. If you need service instructions, you want the factory service manual for the LP8504. But when you’re at the ordering counter, this catalog saves you from buying the wrong part and having to eat the restocking fee. That’s the kind of cost control a shop owner appreciates. Dynapac PL2000LS Parts Catalog (258 Pages) – OEM Factory Spec covers a different machine but follows the same numbering logic. Check that one if you’re also running a cold planer.

Verify the Serial Number Before Ordering

Page 4 of the catalog lists the required information for placing an order: type of machine, roller serial number, quantity, part number, parts denomination, and dimensions for length-cut items. That sounds basic, but I’ve had suppliers reject orders because the serial number was entered wrong. The manual has a dedicated box for your agent/dealer information on the bottom of that page – fill it out before you call. This is the kind of discipline that separates a pro rebuild from a parts lottery. The catalog itself is printed on heavy stock and every page has a revision date at the bottom, so you know it’s current. If your copy is the SLP8504-1EN1 issue from May 2010, you’re working with the latest factory release.

Cross-reference with related models: Dynapac PL2000LS Parts Catalog – Factory OEM Specs for Cold Planer and Dynapac PL2000LS Parts Catalog – OEM Spare Parts Listings follow the same format and are equally essential if you maintain a mixed fleet. The part numbering conventions in these catalogs align with standards used across heavy equipment – you’ll see similar logic in the Automotive Industry Overview when it comes to traceability and revision control.

Who Needs This Catalog – And Why You Can’t Fake It

DIY guys who own a Dynapac LP8504 compacting their own land don’t need a service manual if they can’t get the right part in the first place. This catalog is for anyone who has to open the parts book and procure components – shop owners, fleet mechanics, equipment operators. If you’re a home garage enthusiast who rents out machinery, having the factory parts list on hand means you can fix the compactor yourself instead of waiting a week for a dealer to figure out what broke. The aftermarket parts diagrams you find online are often scanned at low resolution, missing callout numbers, or outdated. This PDF is a clean scan of the original Dynapac document – every line and number is legible.

Source Authenticity – OEM vs Aftermarket

I don’t trust aftermarket documentation for anything that has a serial number plate, especially on European-built equipment like this Dynapac. Aftermarket reprints often drop the notes page, skip the revision block, or re-number the pages so the index doesn’t match. This is an original OEM catalog from Dynapac (part of the Atlas Copco Group), printed in Sweden, with the factory copyright and a reserved-rights clause. No guesswork, no reprints. The 78 pages include the yellow notes section for parts-service information that lists any changes made since the catalog issue date.

Does this parts catalog include torque specifications for bolts?

No. This is strictly a parts identification guide. Torque values, fluid capacities, and service procedures are in the factory service manual for the LP8504. If you need those, get the service manual—don’t lean on a parts catalog for assembly specs.

Can I use this catalog with a Dynapac LP8504 manufactured after 2010?

Check your serial number. The catalog lists valid from *185010001*- onward. Later production runs might have parts revisions that aren’t included. Always cross-reference the serial number with the current Dynapac dealer.

What engine is covered in this catalog?

It covers the Hatz 2G40 diesel engine. If your machine has a different engine option, the engine group pages won’t apply—you’d need the specific engine parts manual.

How are the parts grouped in the 78-page layout?

The catalog organizes parts by functional groups (engine, hydraulic, drum, etc.). Each group starts with an exploded illustration and a matching parts list with item numbers, part numbers, descriptions, and quantities. There’s also a notes page for each group that indicates superseded or relocated parts. The page numbers are printed sequentially, so the table of contents on page 5 helps you jump to the right group fast.

You’re not going to find a more authoritative source for LP8504 parts than this factory catalog. I keep a copy at bay six because every time I order from a provider that doesn’t have the OEM part number, I end up with a box of something that looks right but doesn’t fit. Stop spinning your wheels. Access the Factory Manual and start ordering parts that actually match the machine on your lift.