Description

Sakai SW300-1, SW320-1, SW330-1 2012 Parts Catalog

You’ve got a Sakai SW300-1, SW320-1, SW330-1 2012 Parts Catalog sitting on the bench, and you’re trying to track down a new fuel injector line or a cooling fan blade for that Kubota D1703-M-ET01. The aftermarket parts lookup gave you a number that didn’t match the old part. Now you’re stuck, the roller is down, and the customer is breathing down your neck. That’s exactly why this factory catalog exists – to line up the OEM part number the first time, every time.

This is a genuine Sakai parts catalog, not some third-party reprint. It covers the SW300-1 (chassis 4SW49-40114 and up), SW320-1 (4SW50-40197 and up), and SW330-1 (4SW51-40158 and up). 102 pages of exploded diagrams, part numbers, and quantity tables. You get the engine system, fuel system, cooling system – all the major assemblies you need to keep a vibrating roller in service.

Engine System, Fuel System, Cooling System – Every Part, Exploded View

Flip to page 1 and you’re looking at the engine system for the Kubota D1703-M-ET01. Each component is keyed with a part number, quantity, and application code. Page 2 covers the fuel system – injectors, lines, filters – and page 3 the cooling system, including the radiator, fan, and water pump. The catalog uses a simple three-column model indicator: ○ means that part applies to the SW300-1, SW320-1, or SW330-1. You’ll see that some sections are model-specific – for example, the Hydraulic System (Drive 2) has separate pages for each model.

The format is no-nonsense. Each group has a group name, description, and a part number prefix. You can order exactly what the factory drawing shows. No guessing. No cross-referencing aftermarket books that may have errors.

Why OEM Part Numbers Matter for the Kubota D1703-M-ET01

The Kubota D1703-M-ET01 engine is shared across all three roller models, but the mounts, belts, and hydraulic drives differ. An aftermarket catalog might list a generic belt or a fuel pump that fits the engine but not the roller’s bracket. This Sakai catalog shows the exact assembly – including spacers, grommets, and bolts that the OEM intended. If you’re working on a SW320-1 with chassis number 4SW50-40250, you need the parts designated for that serial range. Page 2 of the catalog explains how to read the chassis number range in the remark column, like “No.10007: Applicable up to 10007”. That level of granularity is what keeps you from ordering the wrong intake manifold gasket.

For a shop that runs Sakai rollers, this catalog is the only reference you should trust for the engine system, fuel system, and cooling system. Use it alongside the separate Kubota engine parts catalog (not included here – see the guide note on page 2).

How to Use This 102-Page Catalog Correctly

Page 2 gives you the “Guide for Use”. Read it. Five critical points: 1) Quote the vehicle model, chassis number, part number, part name, and quantity when ordering. 2) The chassis number is stamped on the frame and on the identification plate – don’t skip verifying it. 3) The quantity column shows the number applied to one unit of the vehicle, except for assembly parts which show the count per assembly. 4) Abbreviations: LH/RH are viewed from behind the vehicle. OP = option, N/S = not supplied separately, A/S = supplied as an assembly. 5) Parts marked with “*” have been corrected – order the renewed number below.

I’ve seen guys grab a part number off the internet, order it, and then swear when the bolt holes don’t align. This catalog takes that guesswork out. The exploded views are clear. You can see exactly where each washer and clip lives.

Chassis Number Ranges and Model Identification

Each model has a specific chassis number prefix: SW300-1 uses 4SW49, SW320-1 uses 4SW50-40101 and up, SW330-1 uses 4SW51-40101 and up. The catalog covers from SW300-1 → 4SW49-40114-, SW320-1 → 4SW50-40197-, SW330-1 → 4SW51-40158-. If your roller falls outside those ranges, double-check the remark column for applicability. Some parts are marked “Dom.” for Japan domestic or “Exp.” for export – be sure you’re ordering the export-spec part if you’re in North America.

This level of detail matters. I’ve had to drive two hours to a dealer because someone ordered a domestic-spec fuel cap for an export roller. Don’t let that be you.

Source Validity – Factory Sakai Documentation vs Aftermarket Reprints

This is a direct scan of the original Sakai parts catalog, published in 2012. It’s not a photocopy of a photocopy. The scanned pages are clear, the part numbers are legible, and the group numbers match the OEM numbering system. I’ve seen aftermarket parts catalogs that re-number everything to fit their own database – that creates confusion when you try to match the part to the actual Sakai part. Stick with the factory document. It’s the only way to cross-reference with the dealer’s computer system when you call to order.

If you’re also working on other Sakai rollers, check out the related manuals: SAKAI SW770HF Vibrating Roller Parts Catalogue for a similar model, SAKAI SW880 SW990 Parts Catalogue for larger compactors, and SAKAI SW652ND-1 Vibrating Roller Parts Catalog for a different series. For background on vibratory roller technology, see Automotive Industry Overview and Automotive Industry Overview for general context on heavy equipment documentation.

Frequently Asked Questions

Does this parts catalog include torque specifications for the SW300-1 roller?

No. This is a parts catalog, not a repair manual. It lists part numbers, quantities, and exploded views. For torque values, you need the factory service manual for the SW300-1/SW320-1/SW330-1, which is a separate document. That manual includes tightening torques for the engine, hydraulic system, and frame fasteners.

Can I use this catalog to order parts for a SW330-1 with chassis number 4SW51-40100?

Check the remark column on each page. The catalog covers from 4SW51-40158 and up. For chassis numbers below that range, some parts may differ. You’ll need to verify with a newer supplement or contact a Sakai dealer.

What does “A/S” mean in the parts list?

“A/S” means the part is supplied only as an assembly or kit. You cannot order the individual subcomponent. For example, a hydraulic control valve may be listed as A/S – order the whole assembly.

How do I find the correct fuel filter part number for a SW320-1?

Go to the Fuel System section starting on page 2. Find the group number 0445-02801-0-10130-I. The exploded diagram indexes each component. The fuel filter will be keyed with a number, and the corresponding line in the parts table gives the OEM part number. Cross-reference with your chassis number range in the remark column.

Stop wasting time with aftermarket lookup tools that give you mismatched parts. Access the Factory Manual – this genuine Sakai parts catalog – and get back to turning wrenches with the right numbers in hand.