Hitachi Sumitomo ZAXIS 160W Parts Catalog

I’ve seen more than a few backhoes and excavators come through my shop with mismatched parts or missing bolts because someone ordered from a third-party catalog that had the wrong number. That’s where this Hitachi Sumitomo ZAXIS 160W Parts Catalog stops the guesswork. It’s the same printed reference the factory techs use, 511 pages of exploded diagrams and genuine part numbers. If you own a ZAXIS 160W wheeled excavator, this is the only parts reference you should trust under the hood.

Engine and Fuel System Parts Breakdown

The catalog starts with the upperstructure, and the first major section you’ll hit is the Engine group. Inside you’ll find the exact part numbers for the engine support, oil filter piping, intercooler net, and everything tied to the Fuel system — fuel tank, fuel tank support, fuel piping, and the fuel feed pump. This isn’t a generic drawing; the exploded views show every bolt, gasket, and hose with a corresponding part number. I’ve used these breakdowns to source a replacement intercooler piping clamp that a local dealer swore was discontinued — it’s not, if you have the right number.

Hydraulic Piping: Upperstructure Sections

Hydraulic leaks on a wheeled excavator will put you down fast. This catalog devotes multiple sections to the piping: suction, delivery, return (two separate sections), drain, and six main piping groups. Each one shows the routing and the exact fittings needed. When you’re ordering o-rings or JIC adapters, you don’t want to guess the thread pitch — this catalog gives you the Hitachi Sumitomo part number so you get the correct replacement. The service codes (W, H, D, K, R, S, Z) printed on every page tell you whether a part requires dealership modification (W) or is a precision component that can’t be rebuilt in the field (H). I always check those codes before I order anything.

CAB Group Components: Standard and OPG

The cab section runs almost a hundred pages — everything from the cab frame (standard, with guard seat, with vandal hook, OPG) to the air conditioner, heater, window washer, sunshade, and suspension seats. If you need a seat belt, armrest, or the door lock assemblies, they’re all here with exploded views. The OPG (operator protective guard) variants have separate part numbers, so don’t order the standard cab window guard if your machine is fitted with the OPG package. The catalog lists them side by side — page 4 of the cab section shows both cab (OPG) and cab (with guard seat) lines.

Undercarriage: Power Train and Axle

Under the machine, the undecarriage section covers the chassis, swing bearing, power train, axle wide, travel motor, tires, and stoppers. If you’re rebuilding the swing bearing or replacing a travel motor, you’ll need the exact swing bearing parts list (with bearing part numbers and the bolts that retain it). The catalog also lists tire and stopper part numbers — common wear items that are easy to misorder. I’ve seen mechanics order a 20K travel motor only to find out their machine was built with a different serial number range — the “Applicable Serial No.” at the top of each section (e.g., 002002~) prevents that mistake.

How to Read the Part Numbers and Service Codes

Flip to the foreword (pages 3–5) and you’ll find the legend for every symbol: the dot system for assembly components, service codes (W, H, D, K, R, S, Z), compatibility codes (I, P, T, Y), and the “>” or “#” marks for new parts. This is the official Hitachi Sumitomo documentation, not a third-party reprint. The PDF bookmark structure mirrors the printed catalog, so you can jump straight to the section you need — fuel piping, pilot piping (there are ten pilot piping groups from A to J), or the brake piping (three groups). I keep this PDF on my tablet in the shop and use the bookmarks constantly.

Does this Parts Catalog include engine overhaul specifications?

No. This is a parts breakdown catalog, not a workshop manual. It lists every component and its part number, but you won’t find torque specs or repair procedures here. For engine-specific parts, the catalog references the separate Isuzu diesel engine AA-4BG1TC parts catalog.

What serial numbers does this cover?

The catalog covers machines starting from serial number 002002 (Product Identification Number starting with CBBP002002). If your machine has a lower serial number, some part numbers may differ — always check the “Applicable Serial No.” at the top of each section.

Can I use this to order parts for a ZAXIS 160W with a different cab type?

Yes. The catalog includes separate exploded views for standard cab, cab with guard seat, cab with vandal hook, and OPG cab. Each variant has its own part numbers. Make sure you identify your cab type by looking at the machine’s PIN plate (located on the right side of the mainframe, under the cab).

Are the part numbers in this catalog still current?

Hitachi Sumitomo regularly updates parts catalogs. This PDF is an original factory release, but always confirm with your dealer for superseded part numbers. The catalog indicates new parts with an asterisk (*), and the compatibility codes (I, P, T, Y) tell you if a part has been replaced or superseded.

I don’t care if you’re a weekend wrench or a full-time fleet mechanic — having the factory part numbers in front of you stops the wrong-order headache before it costs you a week of downtime. The file is a clean scan of the original Hitachi Sumitomo print, 511 pages, fully bookmarked. If you need to pull a part number for the fuel feed pump, the control valve solenoid, or the swing device support, this is your reference. Download the Factory Manual now and keep it on your shop tablet or laptop. You’ll thank yourself the first time a customer brings in a ZAXIS 160W with a split return hose and you call out the exact part number without blinking.

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