Description

Case 310, 310B Parts Catalog – OEM Factory Parts Breakdown

You’ve been burned by an aftermarket parts list before. A seal kit shows up with the wrong bore diameter. A hose assembly doesn’t match the routing. That’s time, freight charges, and a machine sitting in the yard. The Case 310, 310B Parts Catalog eliminates that guesswork. This is the same book the Case parts counter uses – a reprint of the factory A641 catalog, covering both the 310 and 310B utility wheel tractors with backhoe attachment (after serial number 4008724). 68 pages of OEM part numbers, exploded views, and indexing that lets you find the exact component without hunting through aftermarket cross-references.

Boom, Buckets, and Dipper Arm – Page 11 Breakdown

Page 11 groups the boom assembly, buckets, and dipper arm together. If you’re rebuilding the front structure of the backhoe, you get the factory names and part numbers for each weldment, pin, bushing, and cutting edge. The catalog also lists the rear weight box page 58 – not something you think about until your machine lifts a stabilizer off the ground. Each component is keyed to an illustration so you can visually confirm what you’re ordering.

Cylinder Assemblies – Six Hydraulic Cylinders Indexed

One of the strengths here is how the catalog handles cylinders. The alphabetical index points you to Cylinder entries on pages 7 and 9, then breaks out each type individually: boom cylinder (page 55), bucket cylinder (page 57), crowd cylinder (page 56), stabilizer cylinders (page 54), and swing cylinder (page 53). Every seal kit, rod, piston, and gland is listed with the OEM number. No guessing which cylinder you’re dealing with – the section title matches the machine’s labeling.

Hydraulic hoses and tubes span pages 15-33 and page 36. That’s the full routing for the backhoe primary hydraulics, the high-pressure carry-over circuit, the swing and stabilizer cylinders, and the boom-crowd-bucket circuit. Each page shows the hose assembly with the correct end fittings and length. If you’ve ever had a hydraulic shop make a hose from a sample that was stretched, you know why having the factory part number matters.

Pump and Pump Drive – Pages 37-40

The hydraulic pump is the heart of any backhoe. Pages 37-39 cover the pump itself, with the gear section, shaft, seal, and mounting flange. Page 40 shows the pump drive assembly – the gearbox that transfers power from the tractor engine to the pump. This section also lists the hydraulic oil filter (pages 34-35). Using the wrong filter is a quick way to starve the pump of flow or bypass contamination straight into the system.

Control Valves and Relief Valves – Pages 41-49

Valve section covers the control valve (pages 45, 49), flow control valve (page 41), and special relief valve (pages 42-43). These are the components that direct pressure and protect the circuit from overpressure. The catalog gives you the exact spool, spring, and body numbers. If you’re replacing a stuck valve, you get the factory assembly, not a universal replacement that might have different porting.

3 Reasons to Choose OEM Documentation

First, the indexing. The catalog has an alphabetical index (page 3) and a numerical index (page 59). You can look up “Modification Parts – Tractor” on page 5 or “Mounting Parts” on page 7 without flipping through every section. Second, the illustrations show the parts in an exploded view with reference numbers that tie directly to the part list. Third, this is a factory reprint – not a third-party scan with missing pages or blurred numbers. The reliability is what you expect from the manufacturer’s own documentation.

For related manuals, check the Case 310 Crawler Operator’s Manual and the Case 26 Backhoe Operators Manual. If you need the crawler version of this parts catalog, see the Case 310 and 310C Crawler Tractors Parts Catalog. For background on why OEM specs matter in the Automotive Industry Overview and the broader Automotive Industry Overview context, the principle is the same – factory data eliminates ambiguity.

Does this catalog include part numbers for the 310B?

Yes, every part is listed with its OEM number.

What’s the difference between this and a service manual?

A parts catalog shows you what each component looks like and its factory part number, but it does not contain repair procedures, torque specs, or troubleshooting steps. If you are rebuilding the machine, you need both: this catalog for ordering parts and a service manual for disassembly and assembly. The catalog is 68 pages of exploded views and index entries – no instructions. For repairs, look for the factory service manual that covers the 310 and 310B.

Don’t waste a week waiting for the wrong parts. Get the factory reference that parts managers and dealerships use. Access the Factory Manual now and have the correct part numbers at your fingertips.