Description

Howo WD615, WD618 Parts Catalog – Factory OEM Part Numbers for Heavy Truck Engines

You’re a mechanic. You’ve got a Howo WD615 or WD618 on the lift. The control shaft is bent. You look up a part – and the online listing says “fits both.” That’s a lie. On the WD615, the control shaft is part number WG9719570003. On the WD618, it’s WG9719570085. If you order the wrong one, you’re waiting three days for the right part. That cost you money. This Howo WD615, WD618 Parts Catalog is the factory-issued parts book. 176 pages. Every part number, every quantity, every washer and screw. No substitute for it.

What Does the Operation Device Section Include?

Page 2 of this catalog opens you up to Figure C1-1, the operation device – the accelerator pedal assembly. You see 41 items from rubber footboard (AZ9719570001) down to brace rod (AZ9719570045). Each part has a part number, quantity, description, and a column that says “Applicability” – either WD615 or WD618. That column is your safeguard. For instance, the control shaft itself is listed twice: item 10 with two part numbers. The table shows which version goes where. Don’t skip that column.

You’ll find exploded diagrams with numbered callouts. The parts list runs sequentially. The level of detail is what you’d expect from an OEM – they include every snap ring, every spring, every clip. Item 10e on page 2? That’s spring 1288 570057, used only on WD618. The manual tells you. No guesswork.

WD615 vs WD618 – Why It Matters

These two engines share a common architecture, but many parts are not interchangeable. Look at the operation device alone: the control shaft, bracket, plate, control cable, spring, clip – all different between WD615 and WD618. The catalog shows each with its own part number. If you ignore the applicability column, you’ll order the wrong bracket (AZ9719570073 for WD618 vs something else for WD615). That bracket might bolt up, but the spring tension will be off. That’s a safety issue. Stick to the factory spec.

176 Pages of Factory Part Data

The full catalog covers the entire engine – cylinder head, fuel system, cooling, lubrication, and power train. Each section starts with a figure number and a list of components. The data sheet we have shows page 2 of 176. That gives you a taste of the density. Expect similar breakdowns for every assembly. If you need a part for the injection pump or the turbocharger, it’s in here. The catalog is organized by system, then by figure. You can find the part number in under a minute once you know the assembly. The catalog is structured by figure numbers. For example, Fig.C1-1 covers the operation device. Other figures cover the fuel injection system, cylinder head, timing gear, lubrication pump, and more. Each figure has its own parts table. The data we see on pages 2 and 3 is typical: each part number is alphanumeric, and the quantity column tells you exactly how many you need. If you are ordering a repair kit, you can gather all part numbers from the figure. This saves time and ensures you don’t miss a washer or bolt.

Use This Catalog on the Job

Here’s the workflow. First, identify which engine model you have – check the data plate. Then look up the section for the system you’re working on. Find the figure that matches your assembly. Match the reference number on the diagram to the parts table. Read the part number, quantity, and applicability. Order that exact part. That’s it. No interpretation. No “close enough.” The catalog expects you to read the part number as written. When you’re ordering from a dealer, give them the part number – not the description. Descriptions can get translated wrong. The part number is the only constant.

Need a control cable for a WD618? It’s item 10f: WG972557000. That’s what you give the parts counter. Don’t say “control cable.” They’ll hand you the WD615 version. You’ve been warned.

Aftermarket Parts Catalogs: Why They Fail

Third-party parts books compress things. They list one part number where the factory lists two. They omit the separate bracket or the spring because “it’s usually included.” Usually isn’t good enough when the part doesn’t fit. This catalog is a direct replica of the OEM print. It has the same table columns, same figure numbers, same part number formatting. If you’ve ever tried to order parts using a scanned aftermarket catalog and ended up with the wrong hardware, you know the value of this. The rubber footboard – that’s AZ9719570001. An aftermarket list might call it “pedal pad.” That could be anything. Here, you get the exact string.

Related Manuals

If you work on heavy trucks, you might also need the HOWO WD615 Parts Catalog Dump Truck 6×4 8×4 for chassis-specific parts, or the Massey-Harris-Ferguson FF 30 GS 1957 Parts Catalog | OEM Fastener Guide for vintage equipment. For industrial components, the Futura FC200-FC400 Parts Catalog – OEM Wear Parts Specs covers pumps and compressors. For background on engine technology, see Internal Combustion Engine. The broader Automotive Industry Overview also provides context on truck manufacturing.

Frequently Asked Questions

Can I use this catalog for other Howo engines?

No. It only covers WD615 and WD618.

Does the catalog include torque specs or repair procedures?

No – this is a parts catalog, not a service manual. It does not list torque values or repair instructions. Use the corresponding service manual for those.

Are the diagrams clear enough to identify parts?

Yes. Each figure has an exploded view with reference numbers matching the parts list. For example, Fig.C1-1 shows the accelerator pedal assembly with 41 numbered components. The table lists each part number, quantity, description, and applicability (WD615 or WD618). The diagrams are clear, but you need to cross-reference the numbers with the table. Each reference number in the exploded view corresponds to a row in the parts list. For instance, item 10 on the diagram is the control shaft; the table shows two lines with different part numbers for WD615 and WD618. You must check the applicability column. This prevents ordering the wrong shaft. The same system applies to every figure in the catalog, from the accelerator pedal to the cylinder head. The consistency means you can trust the visual identification.

How often are these catalogs updated?

This is the original factory edition. Supersessions and revisions are not included. Check with your Howo parts dealer for the latest part numbers if the truck has been modified or is newer than the catalog year.

You need a part for a Howo WD615 or WD618? Start with the factory data file. Order the right number the first time. Access the Factory Manual now and keep it in your shop binder.