Description

Cummins QSB6.7 Parts Catalog – Factory Specs, No Aftermarket Guessing

You’ve been burned by aftermarket parts lists before. A gasket kit that doesn’t match the block. A piston ring set with the wrong bore size. That’s time on the lift you don’t get back. This is the factory-issued Cummins QSB6.7 Parts Catalog – 92 pages of OEM part numbers, exploded diagrams, and warranty language straight from Cummins Inc. Not a third-party reprint. Not a scanned copy from a dealer’s trash bin. It’s the actual PDF the factory uses to order replacement parts for QSB6.7 Tier 3 industrial engines.

What’s Inside This 92-Page Parts Catalog

Every page is a page of the original document. The catalog breaks down the engine into subsystems: cylinder block, cylinder head, fuel system, lubrication, cooling, air intake, and electrical. Each section includes exploded-view illustrations with callouts tied to official Cummins part numbers. No torque specs here – this is a parts catalog, not a service manual. But if you need to identify a cracked injector line or a worn valve spring, the part number is right there next to the drawing. The warranty section (pages 4-6) spells out exactly what Cummins will cover if a new part fails. That’s stuff most aftermarket catalogs leave out.

Does This Catalog Cover the Fuel System?

It does. The fuel system section shows the CP3 high-pressure pump, injectors, fuel lines, and filter head. Every fitting, seal, and bracket has a separate part number. You can cross-reference with your engine’s serial number to make sure you’re ordering the correct injector tip – no more guessing between the A and B codes.

Who Needs This Manual

If you own a piece of equipment powered by a QSB6.7 – a generator, a irrigation pump, a commercial mower, or a skid-steer loader – you need a parts catalog that matches what your local Cummins dealer pulls up. DIY mechanics who rebuild their own engines will appreciate the exploded views. Fleet operators who stock common spares can use the catalog to build a correct inventory. Beginners? This isn’t a how-to-repair guide. It’s a parts reference. Pair it with the Cummins QSB6.7 Parts Catalog and an OEM service manual, and you’ve got everything you need to tear down and rebuild.

3 Reasons to Skip Aftermarket Parts Catalogs

1. Aftermarket catalogs often reuse illustrations from other models – part numbers can be off by a digit, leading to wrong parts shipped.
2. OEM catalogs include supersession history. If Cummins updated a part, this catalog shows the old and new numbers side by side.
3. Warranty coverage references are missing from third-party sources. If you install a new part and it fails, you need the factory warranty language to make a claim.

This catalog is the real deal. Every diagram and number came from the Cummins engineering library, not from a photocopy of a photocopy. For a deeper understanding of diesel engine architecture, read this Wikipedia article on diesel engines for the fundamentals. But when it’s time to order parts, you want the factory numbers.

What Torque Values Are Listed?

None. Let me repeat: this is a parts catalog, not a service or repair manual. Torque specs, clearances, and assembly procedures are not included. If you need tightening sequences or fluid capacities, get the Cummins QSB6.7, QSB4.5 2006 Operators Manual – OEM Specs. The two manuals work together – one tells you what to buy, the other tells you how to install it.

Source Authenticity: OEM vs. Aftermarket

This file is a direct digital copy of the official Cummins Parts Catalog document with file name Cummins_QSB67_Parts_Catalog_en-21314001784.pdf. It was printed by Cummins for the North American industrial market. No aftermarket editor touched it. No third-party added their own artwork. The page numbering is original – 92 pages start to finish. If you’ve ever argued with a parts counter guy over whether a 3926835 gasket supersedes to a 3926836, having this catalog in your hand ends the argument.

Frequently Asked Questions

Can I use this catalog to rebuild a QSB6.7 from scratch?

No. This is a parts reference. You will need a separate service manual for torque specs and procedures.

Does it cover Tier 3 and Tier 4 variants?

The catalog title says “QSB6.7 Tier 3 Industrial.” It does not cover Tier 4 final aftertreatment systems. If your engine has a DPF or SCR, that hardware is not in these 92 pages. You would need the Tier 4 version. However, the base engine block, rotating assembly, and fuel system are largely the same. For a deep dive into the QSB6.7 family, the Cummins VME W380 Parts Catalog | 626-Page Factory Manual covers related industrial engines and includes cross-reference data that can help identify shared parts between models.

Bottom line: if you work on Cummins QSB6.7 engines and you’re tired of guessing part numbers, this PDF belongs on your laptop or tablet. One access, 92 pages of factory data. Access the Factory Manual now from AutoRepairManuals – the largest collection of OEM shop manuals in North America with verified factory specifications.