Description

GEHL 353, 373 2009 Parts Catalog – OEM Factory Parts Identification

You ever order a replacement hydraulic pump for your GEHL 353 compact excavator, wait three days, then find out the mounting flange is wrong because your machine has a serial number break you didn’t know about? That’s the kind of headache this GEHL 353, 373 2009 Parts Catalog kills before it starts. I’ve been turning wrenches for 28 years, and I can tell you that guessing part numbers from memory or cross-referencing aftermarket junk is the fastest way to turn a one-hour job into a three-day parts chase. This is the factory-issued book – not a reprint, not a scan of a scan. 212 pages of exploded diagrams with callouts that match the hardware on your machine, provided you check your serial number range first.

What This Parts Catalog Covers – From Decals to Diesel Engine

The table of contents runs from Decal Locations (page 3) straight through to the Diesel Engine section (page 61) and beyond into hydraulics, undercarriage, cab, and the ISO/SAE valve group. Every exploded view comes with reference numbers, descriptions, and quantity. You get the exact part number GEHL used on the assembly line. No guessing. No calling the dealer and hoping their parts guy is having a good day. If you need a new valve cover, page 32 shows the gasket, bolts, and the cover itself with the correct Grade 8.8 fasteners. The manual also includes a list of abbreviations and a note that metric torque values in Newton-meters can be converted to foot-pounds by multiplying by 0.738 – handy when you’re tightening down something critical like a cylinder head.

212 Pages of Exploded Views and Part Numbers

Page count matters because a thin catalog means missing details. This one packs 212 pages with sections for the chassis (page 26), chassis lubrication (page 28), counterweight (page 30), and the entire operator station – canopy, cab, doors, windows, seats, heater. The dipper arm comes in short and long variants (pages 34 and 36). The boom and dozer blade each have their own breakdown. If you’re rebuilding an undercarriage, you’ll find rubber track and steel track options starting at page 9, with track tensioner procedures and parts lists. That’s the kind of depth OEM documentation delivers.

Diesel Engine Section – Page 61 Details

Starting at page 61, the engine group covers the cylinder block, cylinder head, valve cover, camshaft, crankshaft, crankshaft seal, oil pan, oil lubrication system, fuel injection equipment, cooling system, air intake, intake manifold, exhaust system, fuel tank, and fuel system. Every single part listed has a GEHL part number. You won’t find generic cross-references here. The section also includes engine mounts and the specific serial number breaks for Tier I, II, and III emissions configurations. If you need the timing cover gasket or the injector line clips, they’re in there.

Does This Catalog Cover Both the 353 and 373?

Yes. The manual separates serial number ranges for both models. Page 1 lists the 353 serial numbers: Tier I models AD00001 to AD01552, Tier II AD01553 to AE02832, Tier III AG00593 and up. For the 373: Tier I AD00001 to AD01553, Tier II AD01554 to AE02799, Tier III AG00580 and up. If your machine falls outside those ranges, you need a different revision – but for the 2009 model year, this is the correct book. Always verify your serial number before ordering parts. The manual explains how to read serial number breaks (e.g., “SN 999 and before”, “SN 1000 – 2000”) and exceptions – you’ll find that on page 2.

Hydraulic System: Factory Part Numbers for Pumps and Valves

The hydraulic oil pump appears on page 103, followed by the throttle lever, cooling system (again), oil cooler and its hose installation, turntable drive unit and hoses, drive motor and hoses, hydraulic oil tank, pump external and internal parts, hose installation, control valve (page 120), pilot oil supply unit, swivel joint, joysticks, manifold block, joystick hose installation, travel pilot valve and hoses, selection valve, reversing valve for the dozer blade, and selection valve for house tilt. That’s a lot of circuits. Without the factory diagram, you’re guessing which O-ring goes where. With this catalog, you get the seal kit reference numbers – note the small bag icon in the illustrations that indicates a seal kit. That alone saves you from ordering individual O-rings that might not seal.

Why OEM Parts Catalog Beats Aftermarket

I’ve seen aftermarket parts catalogs that use copied illustrations and re-labeled part numbers that don’t match the actual hardware. GEHL prints their own. This is original factory documentation from 2009, revision H, form number 918039. It tells you that all cap screws and bolts are Grade 8.8 unless noted, and gives standard attaching hardware torque values near the back. When you’re assembling a joystick control or mounting a hydraulic pump, those torque values matter. You don’t get that from a third-party PDF that was scanned from a photocopy. If you need the operating instructions to go with this parts catalog, grab the GEHL 253 303 353 373 2011 Operators Manual – Factory Specs. For other GEHL equipment parts, see the GEHL SL4640, SL4840, SL5640, SL6640 2005 Parts Catalog or the GEHL SL7610, SL7710, SL7810 2005 Parts Catalog – OEM Factory Specs.

For a deeper understanding of how the diesel engine in these excavators works, read this Wikipedia article on diesel engines. And if you want to compare fuel injection systems, check this Wikipedia article on diesel engines.

Frequently Asked Questions

Can I use this parts catalog to rebuild the entire engine?

You can identify every part needed, yes. The exploded views show all internal components from the crankshaft to the cylinder head. But this is a parts catalog, not a service manual. You’ll still need the factory repair procedures for assembly specs. Use this to order the right parts, then get the service manual for torque sequences.

Does the catalog include torque specs?

Standard attaching hardware torque values are provided near the back of the manual. Metric values in the illustrations are given in Newton-meters – multiply by 0.738 to get foot-pounds. For critical fasteners like head bolts, always verify with the service manual.

When you need to order parts for your GEHL 353 or 373 compact excavator, don’t rely on memory or aftermarket sites that show the wrong illustration. Access the Factory Manual and get the exact part numbers GEHL stamped on the assembly line. 212 pages, OEM data, 2009 revision. That’s the difference between a part that fits and a part that sits on your shelf.