Description

Cummins QSM 11 Parts Catalog – 145-Page OEM Factory Manual

Let me tell you straight – if you are rebuilding a Cummins QSM 11 Parts Catalog is what you need on the bench, not a reprint from some third party that left out half the figures. I’ve been turning wrenches for 28 years, and every time a kid hands me a parts list that doesn’t match the engine serial number, I send him back to the parts counter. This catalog is 145 pages of factory exploded diagrams and part numbers for the QSM 11 industrial engine, Tier 3 emissions. No condensation. No guesses. Just Cummins’ own documentation.

Before you order a single gasket or a piston kit, you need to know what actually went into your engine. The OEM factory catalog gives you the exact part numbers, supersessions, and option codes. The Camshaft, Crankshaft, and Cylinder block are all laid out with reference numbers that tie directly to the Cummins supply chain. I’ve seen guys install the wrong connecting rod because they trusted an aftermarket PDF – don’t be that guy.

Crankshaft and Cylinder Block: Pages 7 and 5

Page 7 covers the Crankshaft assembly – the full rotating assembly with bearing sizes and thrust washer part numbers. Page 5 shows the Cylinder block, including the block casting number and core plug locations. If you need to order a short block or just the block itself, this is where you verify the casting suffix. The diagrams are not artistic – they are engineering drawings with callouts for every bolt hole and dowel pin.

Does This Catalog Include the Camshaft Section?

Yes, the Camshaft is covered on page 88 of the catalog. It lists the camshaft part number for the QSM 11 industrial application, along with the gear train components – idler gears, gear housing, and front gear train. If you are replacing the camshaft, you will also need to reference the Cam Follower Lever section on page 15. The catalog shows you the follower assembly with the roller pin and snap ring. Do not try to cross-reference these numbers with a generic chart – use the factory listing.

7 Critical Sections for Engine Rebuild

When you strip a QSM 11 down to the bare block, these seven sections in the catalog will save you from ordering the wrong parts:

• Cylinder Liner Kit (page 6) – liner protrusion specs are not in this catalog, but the kit part number and liner height options are.
• Piston Kit (page 87) – includes rings, pin, and retaining rings.
• Connecting Rod (page 85) – rod cap bolt part number and bearing insert codes.
• Main Bearings (page 9) – bearing shell sets with thickness grade.
• Cylinder Head (page 91) – valve guides, seats, and head gasket part numbers.
• Injectors (page 92) – injector part numbers for the QSM 11 fuel system.
• Full Flow Oil Filter (page 69) – filter head and bypass valve components.

Each section gives you a clear exploded view with a callout number. Use the Part Number Index at the back (page B-1) to look up any number quickly.

Use the Option Number Index for Cross-Referencing

Beginning on page A-1, the Option Number Index lists every option code that was available for the QSM 11. If your engine has a special air compressor plumbing or a different fan drive, you will find the correct hose and fitting part numbers there. I have seen technicians waste hours because they ordered the standard part for a variant engine – this index kills that problem.

Warranty Coverage: What the First Two Pages Tell You

Pages 1 and 2 of the catalog reproduce the Cummins New Parts Warranty. It explains the base warranty (one year, 100,000 miles or 3,600 hours, whichever comes first) and the Extended Major Components Warranty covering cylinder blocks, crankshafts, flangeless NT camshafts, and connecting rods for up to three years or 10,800 hours. This matters if you are installing a factory part and need to know what is covered. The catalog is not a repair manual – it is a parts identification tool, but the warranty text tells you exactly what the manufacturer expects.

The difference between this OEM catalog and a reprinted version is night and day. Third-party sellers often skip pages, resize diagrams so part numbers are illegible, or omit the option indexes. AutoRepairManuals guarantees the PDF is a direct scan of the original Cummins document – no reprints, no copy-paste jobs. You get the full 145 pages, including the Part Number Index and the Option Number Index.

If you are also working on other Cummins models, check out the Cummins VME W380 Parts Catalog | 626-Page Factory Manual for heavy equipment, the Cummins QSX15-G8 2011 Parts Catalog – OEM Factory Manual for larger displacement engines, or the Cummins V-378 Parts Catalog – OEM Factory 37-Page Manual for older V-series. For a broader understanding of diesel engine architecture, this Wikipedia article on diesel engines offers a solid overview of how the QSM 11 fits into the diesel family. For an even deeper technical reference, this Wikipedia article on diesel engines covers combustion cycles and emission controls relevant to Tier 3 engines.

Is this catalog the same as a service manual?

No. This is a parts catalog. It identifies parts with exploded diagrams and part numbers. It does not contain torque specs, overhaul procedures, or diagnostic steps. For that, you need the service manual – we carry those too.

Will this catalog work for a QSM 11 marine engine?

The catalog is labeled for industrial Tier 3 emissions. Marine versions of the QSM 11 (M11) share many of the same base engine parts – block, crankshaft, camshaft, pistons – but marine-specific components like the heat exchanger or seawater pump are not listed here. Check the option codes on page A-1 for any marine-configured options; if your engine has a different accessory drive, the catalog may still cover it. The sure way is to match the engine serial number to the Cummins parts database using the part number index at the back.

Stop relying on blurry screenshots from forums and get the actual factory data onto your tablet or print it out for the toolbox. Access the Factory Manual now and have the correct part numbers at your fingertips.