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Caterpillar 319D L, 345C L 2007 Technical Manual – Factory Specs Reference

Look, I’ve been wrenching for 28 years, and I’ve seen guys order the wrong piston because they trusted a third-party spec sheet. Caterpillar 319D L, 345C L 2007 Technical Manual is 24 pages of factory-printed data. It won’t tell you how to rebuild the hydraulics, but it will tell you exactly what engine, what operating weight, and what dimensions your machine has. That’s the difference between getting the right part and having a machine sit for a week. If you’re working on one of these excavators, you need this on your bench.

Machine Specifications: 319D L and 345C L

Inside, you get the full product line breakdown. The 319D L runs a C4.2 ACERT engine rated at 93 kW (126 hp) with an operating weight of 20,060 kg. Max reach is 9.80 m, depth 6.90 m. The 345C L is a larger machine—its specs are listed alongside other models. This manual covers not just those two, but the whole range from mini excavators to large ones. When a customer asks which engine is in their 319D L, you don’t guess. You flip to that page and read it off the factory chart.

What Engine Data Is Included?

Every machine listed comes with net power, engine model, and operating weight. For the 319D L, it’s a C4.2 ACERT. For the 345C L, you’d find the engine model on the same page. That’s critical when you’re sourcing a replacement long block or injectors. The manual also shows hydraulic excavator breakdowns by size class—mini, small, medium, large. If you’re dealing with a 320D L, it’s there too. Think of this as a master catalog for the 2007 Caterpillar excavator lineup.

24 Pages of Factory Data – What You Get

It’s a slim document—24 pages. Don’t confuse that with a full service manual. This is a technical reference for machine identification. Page 3 lists all machine categories. Page 4 starts the hydraulic excavator specs. Later pages cover work tools, engines, and generator sets. You get operating weights, reach, depth, and engine identifiers. That’s the meat. No filler. No reprints. Just OEM data from 2007.

Why Factory Documentation Beats Third-Party Specs

I’ve seen aftermarket websites list the wrong operating weight for a 319D L by 500 kg. That matters when you’re calculating transport or counterweight. Caterpillar prints this data themselves. The serial number breaks are correct. If you need to verify a machine’s model year or engine variant, this manual is the source. For more detailed repair procedures on related engines, check Caterpillar 3116, 3044C, 3114, 3408 Technical Manual | Piston Specs or Caterpillar 30A1, 4KC1, 8SZ1, 2WB1, 2WN1 1999 Technical Manual. For a broader look at older Caterpillar product lines, see Caterpillar 30A1, 6NB1, 7DE1, 8KC1, 4KC1 1999 Technical Manual.

Verify Your Machine’s Weight Before Ordering Parts

One common mistake: ordering undercarriage parts based on the model name alone. The 319D L and 319D LN have different operating weights. The manual lists them separately. Without this spec sheet, you might get the wrong tracks or rollers. That’s a costly mistake. Factory data eliminates that risk. For more on how manual transmissions work in heavy equipment, see Manual Transmission on Wikipedia. For older transmission design theory, check Manual Transmission on YouTube.

Does this manual include repair procedures?

No. It’s a product line guide, not a service manual. You’ll get specs, not step-by-step repairs.

What models are covered?

Primarily the 319D L and 345C L, plus the entire 2007 Caterpillar excavator range from mini to large. Also includes engines and work tools.

How many pages?

24 pages.

Is this a factory OEM document?

Yes. This is a genuine Caterpillar publication from 2007. No aftermarket reprints. The data comes straight from the manufacturer, so you’re not dealing with typo-ridden third-party spec sheets. When you’re cross-referencing serial numbers or ordering parts for a 319D L or 345C L, this factory data ensures accuracy. I’ve seen too many DIYers get burned by generic online specs that don’t match the actual machine. This manual eliminates that risk because Caterpillar engineers wrote it for dealers and service personnel. The operating weights, engine models, and dimensions are verified against the actual production batches. If you’re serious about getting the right parts the first time, you use factory documentation.

You need this on your hard drive or printed out. Don’t trust a forum post for your 319D L’s engine model. The 2007 Technical Manual from Caterpillar has the numbers. Access the Factory Manual now.