Description

Caterpillar C15 2006 Parts Catalog – Factory OEM Documentation

If you’ve ever stood at a parts counter guessing whether that piston pin bushing is the right one for a C15, you know the feeling. Wasted time, wrong parts, restocking fees. That stops with the factory Caterpillar C15 2006 Parts Catalog. This is the same binder the dealer uses – 884 pages of OEM group illustrations, exact part numbers, and alternative sourcing codes. The PDF covers the JRE1-Up engine family, and every group from the BASIC ENGINE through ELECTRICAL AND STARTING SYSTEM is laid out so you can find what you need without flipping through aftermarket junk.

Engine Group Illustrations – Not Schematics

Each group in this manual uses actual exploded-view drawings with part numbers keyed to the table. You want the CYLINDER HEAD AS? Look in BASIC ENGINE – CYLINDER HEAD AS. Need the VALVE mechanism? It’s under ACTUATOR GP- VALVE, COVER GP- VALVE MECHANISM, and ROCKER ARM GP. Every fastener is listed with its thread size and length. That matters when you’re ordering bolts for a flywheel housing and the local store tells you they’re “standard.” No, they aren’t – get the Caterpillar part number from page [DATA NEEDED] (the manual doesn’t specify exact page in the OCR, but each group starts with a new page).

Lubrication and Cooling System Parts – Separate Sections

Two dedicated chapters: LUBRICATION SYSTEM and COOLING SYSTEM. Oil pump, filter base, cooler core, water pump – all broken into their own groups. The OIL PAN GP, DRAIN GP- ENGINE OIL, and GAUGE AS- OIL LEVEL (DIPSTICK) are in the lubrication section. When you need a tube seal for the turbocharger oil line, look under LINES GP- TURBOCHARGER OIL. This catalog gives you the OEM part number so you don’t end up with a Chinese knockoff that swells shut in 500 hours.

Air Inlet and Exhaust – Turbocharger and Manifold Coverage

Turbocharger group, exhaust manifold, muffler, precleaner, and all the heat shields. The TURBOCHARGER GP is shown with its mounting hardware and gaskets. Need the V-band clamp? It’s in the group parts list. The AIR CLEANER GP and PRECLEANER GP are there too. This is the kind of detail that saves a Saturday – you order the right clamp instead of welding a bracket.

Fuel System – Injection Pump, Filters, and Lines

PUMP GP- FUEL INJECTION, FUEL TRANSFER PUMP, water separator filter, and all the flexible fuel lines. The FUEL SYSTEM chapter includes VALVE GP- FUEL BYPASS and COOLER GP- FUEL. If you’re rebuilding a C15 after a hard start, having the factory part numbers for injector sleeves and sealing washers is mandatory. No aftermarket substitutes – use the OEM numbers from this catalog.

Electrical and Starting System – Alternator, Harnesses, Sensors

ALTERNATOR GP- CHARGING, BATTERY GP, all harness assemblies (HARNESS AS- WIRING, HARNESS AS- SENSOR), and engine sensors. The CONTROL GP- ENGINE SPEED and CONTROL GP- AUTO START/ STOP are included. For anyone working on a generator set or industrial application, the sensor groups (SENSOR GP- COOLANT LEVEL, SENSOR GP- POSITION) are critical. This catalog gives you the exact connector part numbers and pigtail lengths.

One thing I appreciate: the manual includes multilingual indexes (French, Spanish, Portuguese, German) so if you’re sourcing parts internationally, you can cross-reference without a translator. That’s factory support right there.

This parts catalog is the real thing – OEM, 2006 release, no photocopies. If you’re tired of websites that sell you a reprint of a reprint, go with the source. Access the Factory Manual and keep it on your tablet in the shop. Pair it with the Caterpillar C11 C13 C15 ACERT Heavy Duty Engine Training Manual for deeper diagnostic procedures. Need the service side? Get the Caterpillar C15 Truck Engine 2008 Service Manual for torque specs and overhaul steps. Looking for a newer parts breakdown? Check the Caterpillar C15 2009 Parts Catalog.

For broader context on heavy-duty engine technology, see this Automotive Industry Overview and the Automotive Industry Overview.

FAQ

Does this parts catalog include torque specifications for the C15 engine?

It does not. This is a parts catalog, not a service manual. Torque values are found in the corresponding service manual. Use this catalog to order parts, then the service manual to install them.

Can I use this to identify a valve actuator group for a C15 with a different serial number prefix?

The catalog covers engine serial number JRE1-Up. For other prefixes you may need the specific group illustration. The ACTUATOR GP- VALVE section shows the part numbers – cross-reference with your existing actuator to confirm. If your engine is not in the JRE range, check the Caterpillar C15 Truck Engine 2008 Service Manual for serial number coverage.