Caterpillar 928G, IT28G 2002 Parts Catalog

You’ve got a 928G or IT28G on the lift, and you need the right part number for a camshaft, a valve, a crankshaft, or a cylinder head gasket. Guessing or flipping through aftermarket cross-reference charts wastes time and money. This is the factory Caterpillar 928G, IT28G 2002 Parts Catalog — not a reprint, not a scan of a scan. 868 pages of OEM part numbers, arranged by group, with exploded views and exact Caterpillar part numbers. That’s what you get when you buy the real thing.

I’ve been turning wrenches for 28 years. When a parts counter guy hands me an aftermarket catalog and says “this should match,” I walk. Because “should” gets you a Camshaft GP that doesn’t fit, a Crankshaft GP that’s the wrong grind, or a Valve Mechanism GP that binds on the rocker arm. This manual eliminates the guesswork. Every part in the Basic Engine section — from the CYLINDER BLOCK GP to the PISTON & ROD GP — is listed with the exact Caterpillar part number and the machine serial number range it fits. No ambiguity.

Caterpillar 928G, IT28G 2002 Parts Catalog: What You Get

Open the Table of Contents and you see exactly what the factory prints: 20 major sections covering MACHINE ARRANGEMENT, ENGINE ARRANGEMENT, BASIC ENGINE (including CAMshaft GP, CRANKSHAFT GP, CYLINDER BLOCK GP, CYLINDER HEAD GP, and VALVE MECHANISM GP), LUBRICATION SYSTEM, COOLING SYSTEM, AIR INLET AND EXHAUST SYSTEM, FUEL SYSTEM, ELECTRICAL AND STARTING SYSTEM, POWER TRAIN, FRAME AND BODY, BRAKING SYSTEM, STEERING SYSTEM, HYDRAULIC SYSTEM, and more. Each group breaks down into individual component assemblies with the part numbers you need to order. Page 1 shows the product and dealer information sheets so you can record serial numbers. The index is printed in English, French, Spanish, and Portuguese — because Caterpillar knows this machine works all over North America and beyond.

Engine Group: Camshaft, Crankshaft, Valve, and Cylinder Parts

If you’re rebuilding or repairing the 3056E engine, you need the Basic Engine section. It covers the CAMSHAFT GP (part numbers for the camshaft itself and bearings), CRANKSHAFT GP (including pulleys and gear), CYLINDER BLOCK GP, CYLINDER HEAD GP, and the VALVE MECHANISM GP (rockers, pushrods, valves, springs). Also find the FASTENER GP-CYLINDER HEAD — those head bolts are torque-to-yield, and the parts catalog gives you the exact fastener part number so you don’t reuse one-time-use bolts. The PISTON & ROD GP is there too. Without this catalog, you’re chasing supersessions or guessing. With it, you order the right parts the first time.

Why Factory Parts Catalogs Beat Aftermarket Alternatives

Aftermarket parts catalogs often combine multiple models into one book, using generic illustrations and vague footnotes. This is the OEM document, printed by Caterpillar in November 2002 (Form SEBP3520). It lists parts for the 928G Wheel Loader (DBT1-Up, DJD1-Up) and the IT28G Integrated Toolcarrier (CPT1-Up engine). Each group shows the machine or engine serial number prefix that the part applies to. That’s the difference between ordering a water pump that bolts on and one that doesn’t. I’ve seen a $50 aftermarket catalog cost a shop $800 in downtime because the part didn’t line up. This catalog costs less than one hour of shop labor and pays for itself on the first order.

Who Should Use This Manual

This is for anyone who touches a Caterpillar 928G or IT28G: fleet mechanics, owner-operators, heavy-equipment shops, and serious DIYers who maintain their own loaders. If you’ve got a machine throwing hydraulic leaks, a transmission that won’t shift, or an engine that needs an overhaul, you need the parts catalog to identify and order the correct components. The POWER TRAIN section covers AXLE AR-FIXED, BRAKE & PLANETARY GP, DIFFERENTIAL GP, and TRANSMISSION AR. The HYDRAULIC SYSTEM section includes the COOLER GP-HYDRAULIC OIL, CYLINDER & MTG GP-COUPLER, and CONTROL AR-RIDE. Every part number is there.

Using the Manual to Source a Camshaft: A Real Scenario

Say your 928G engine has a worn camshaft lobe. You pull the valve cover, find the camshaft has pitting. Instead of pulling the old part and spending an hour on the phone with a parts house, you open this catalog to the CAMSHAFT GP section. You check your engine serial number prefix (CPT1-Up). You read the part number for the camshaft assembly, plus the bearings and thrust plate. You call your dealer, read off the number, and the part is on the truck the next morning. No returns, no exchanges. That’s the value of a factory parts catalog.

Frequently Asked Questions

Does this manual include repair procedures or torque specs?

No. This is a Parts Catalog — it lists part numbers, not service procedures. Torque specs and repair steps are in the separate Technical Manual.

Can I use this to identify parts for a 924G or 928GZ?

This catalog covers only the 928G and IT28G with the 3056E engine. The 924G and 928GZ are different models. For those, see Caterpillar 928G, IT28G, 924G, 924Gz, 928GZ 2012 Technical Manual.

How do I find a specific part number if I only know the group name?

Use the printed Index at the back of the catalog. It lists every group alphabetically with the page number. If you need the French or Spanish index, they are included too.

Is this the same as the CD-ROM version?

Yes. This is the same content as the official CD-ROM (Caterpillar Form No. SERP3520). The PDF is identical to what the dealer uses.

Related Manuals

• Caterpillar 928G Training Manual – 36-Page OEM Hydraulics Guide
• Caterpillar IT28G Technical Manual – OEM Specs
• Caterpillar 928G, IT28G, 924G, 924Gz, 928GZ 2012 Technical Manual

For background on the wider context of heavy equipment documentation, see Automotive Industry Overview. But that’s extra reading. What you need right now is the factory part number. Download the Factory Manual and get the correct numbers on your bench today.