Dynapac CA-25, CA-25A, CA25S, CA-25D, CA-25PD 1987 Parts Catalog

If you are pulling a Dynapac CA-25 compactor apart in your shop, the last thing you need is the wrong part number. A misordered bearing or seal kills your timeline and costs you money. This catalog is the factory-issued document for the CA-25, CA-25A, CA25S, CA-25D, and CA-25PD models. It was printed in 1987 by Dynapac Mfg Inc. It runs 270 pages and covers every replaceable part and assembly on these vibratory compactors. The table of contents lists major systems like Power Train, Engine & Pump, Fuel Systems, and Hydraulic Assembly. Each section has exploded views with index numbers keyed to the parts list. You match the number on the drawing to the part number and description. That is how you order exactly what the factory intended.

The table of contents alone tells you which pages to flip to for your specific model variant. You get sections for CAT, Detroit, and Cummins engines – each with its own set of pages. This is not a generic aftermarket reprint. It is the original order number 829019 from Dynapac.

Engine & Pump Assembly: Pages 12-17

Engine and pump assembly is detailed on pages 12 through 17. Three engine options are broken out separately: CAT on page 13, Detroit on page 15, Cummins on page 17. Each shows every bolt, bracket, pulley, and hose. If you need a water pump for a Detroit 3-53, you find the part number here. The illustrations match the physical layout so you can visually confirm the piece you are holding.

Fuel System: 11 Pages of Detailed Parts Views

Fuel system pages 20 through 31 break down every line and component. Separate subsections for CAT (page 21), Detroit (page 27), and Cummins (page 31). You get the fuel tank, filters, lines, and injector pump parts. No need to cross-reference with a third-party website. The Dynapac CA-25, CA-25A, CA25S, CA-25D, CA-25PD 1987 Parts Catalog gives you the factory number right there.

Control Valve (Vibration): Exact Factory Numbers

Control valve for vibration is illustrated on pages 164 to 166. Also covered: forward-reverse control on pages 42-45 and 52-57, and steering valve on pages 168-169. Every seal, spool, spring, and housing has a part number. If your vibration circuit leaks, you can order the right O-ring kit without guessing.

Skip the guesswork. Use the factory number.

Why OEM Part Numbers Matter

Aftermarket catalogs often reindex parts or omit superseded numbers. This catalog came from Dynapac. The part numbers in here are what the factory stamped on the box. When you call your dealer and give them a Dynapac p/n, they pull the same bin. No returns because of a mismatched thread pitch. I have seen guys lose a whole job over a wrong pilot valve. Do not be that guy.

Shock Mounts and Bolts – Refer to Page 4

Shock mounts and bolts are called out on page 4, along with lubrication specs. The 10-hour, 50-hour, 100-hour, and 1000-hour service intervals are listed with the required parts. That includes the hydraulic oil filter, fuel filter, engine oil filters, axle differential, planetary hubs, transmission, pump drive, and torque hub. If you are doing a full service, you order everything from one source.

Related manuals available on this site:

• Dynapac CA-25, CA-25A, CA25S, CA-25D, CA-25PD 1987 Parts Catalog – OEM Shop Manu
• Dynapac CA-25 Parts Catalog – 298-Page OEM Factory Manual
• Dynapac PL2000LS Parts Catalog (258 Pages) – OEM Factory Spec

270 Pages Cover Every Major Assembly

Hydraulic assembly (pages 80-97), drive axle (pages 174-181), drum assembly (pages 100-116), electrical wiring diagrams (pages 70-79) – all included. The index on page 5 helps you find any assembly alphabetically. If you need the asphalt water system, flip to pages 126-139. Decals are on pages 142-146. It is all there.

For more on Dynapac history, their official site has background on these machines. If you want context on the broader machinery world, the Automotive Industry Overview covers it, but this manual is your specific tool for parts identification.

Can I use this catalog for repair instructions?

No. This is a parts catalog. Use the Dynapac service manual for repair steps.

How do I identify which engine option my CA-25 has?

The catalog includes separate sections for CAT, Detroit, and Cummins engines on pages 13, 15, and 17 respectively. Match your machine’s serial number to the correct engine group. Each exploded diagram shows every component with part numbers. The index on page 5 also lists “Engine & Pump Assembly” with the page number for your engine. Fuel systems are covered on pages 20-31 with the same three-way split, so you can order the correct fuel filter and lines. If your machine has a CA-25D or CA-25PD badge, the drum assembly and drive axle sections still use the same part numbers unless noted. The manual covers all five models uniformly.

Download the Factory Manual. Get the exact part number from the source Dynapac printed in 1987. Your machine will be back on the job faster.