Description

Cummins 6BTA5.9 Parts Catalog – OEM Factory Parts Breakdown

Ordered a fuel pump for a Cummins 6BTA5.9 only to find the mounting flange didn’t match? I’ve seen that happen. A mechanic pulls a number off a worn-out part, writes it down wrong, and ends up with a paperweight. That’s why this 129-page Parts Catalog exists. It is the same book Cummins dealers used to look up exploded views and factory part numbers. No aftermarket reprints. No third-party guesses. Just the original PDF scan from Cummins, with every page intact.

See page 1 of the catalog. It shows the location of every major external component—fuel pump, air cleaner, turbocharger, dipstick, oil fill, drain plug. You can walk around the engine and point. Page 2 gives you the suggested spare parts list with both Cummins part numbers and Fleetguard cross-references, including lube filter 3932217 and fuel filter 3931063. That alone saves you a phone call to the parts counter.

Cummins 6BTA5.9 Parts Catalog: Factory-Correct Part Numbers

This catalog covers the 6BTA5.9 F1, F2, and F4 variants. Each section is a separate exploded diagram with a parts list. Need the part number for the Camshaft? Go to the Camshaft 1 and Camshaft 2 sections. There’s a drawing with reference numbers and a table listing each part, its Cummins part number, quantity, and any remarks. The same goes for the Crankshaft section—Crankshaft 1 and 2 show the crank, bearings, thrust washers, everything. Every part from the cylinder block to the rocker levers has its own page spread. The Cylinder Block, Cylinder Head, and Cylinder Head Gasket sections are separate. That means you can identify the exact gasket thickness by cross-referencing the option number on your engine’s dataplate. No guessing which head gasket to order.

Camshaft and Crankshaft: Where to Locate the OEM Number

If you have a cam or crank failure, you need the casting number and the OEM part number. The Camshaft pages show the part number for the camshaft assembly itself, plus the followers and related hardware. The Crankshaft pages list the crank part number and the main bearing set. Use these numbers when ordering from Cummins or aftermarket suppliers. Always verify the engine family code on the dataplate (page 3) to make sure you have the right option.

129 Pages of Exploded Views – What You Get

The table of contents runs from Air Cleaner Assembly to Water Pump. That’s 60+ sections, each with two pages (1 and 2) except for a few like Fan Drive (none). You get exploded diagrams for:

• Alternator and mounts
• Belt guard and drive
• Coolant heater and plumbing
• Exhaust manifold and gaskets
• Fuel filter, lift pump, injection pump
• Heat exchanger, lube oil cooler
• Oil pan, pistons, rocker levers
• Starter and solenoids
• Turbocharger and plumbing
• Valve cover, water pump, and more

This is not a compressed reprint from a third-party aggregator. This is the original Cummins parts catalog, scanned at high resolution. Every part number is legible. The dataplate section on page 3 shows option codes. You can trace a part from an exploded diagram to the parts list in seconds. If you have ever tried to read a third-party PDF with blurred part numbers, you know why this matters. This is a clean scan of the original Cummins parts catalog, not a reprint cobbled together from multiple sources. For background on diesel fundamentals, this Wikipedia article on diesel engines explains the basics.

And for the exact same engine, Cummins 6BTA5.9 Parts Catalog – OEM Factory Parts Breakdown gives you the full breakdown. For a similar parts breakdown on a bigger Cummins, check the Cummins VME W380 Parts Catalog | 626-Page Factory Manual. Or if you work on the QSX15 platform, the Cummins QSX15-G8 2011 Parts Catalog – OEM Factory Manual covers that. And this Wikipedia article on diesel engines provides additional context.

How This Catalog Prevents Wrong Injector Orders

Injector part numbers vary by injection timing and fuel delivery. The Injector 1 and Injector 2 pages show the part numbers for the 6BTA5.9. If you order the wrong injector, the engine runs rough or knocks. This catalog gives you the exact number. Match it to the letter.

Cylinder Block, Head, and Gasket – Matching the Right Parts

The Cylinder block pages show the bare block and all internal components—liners if equipped, seals, plugs. The Cylinder Head section shows the head casting and valve train components. The Cylinder Head Gasket section is critical: gaskets have different thicknesses to adjust compression ratio. Use the part number listed for your engine serial number.

No guesswork.

Frequently Asked Questions

Does this manual include torque specs or repair procedures?

No. It is a parts catalog only. You need a separate service manual for torque values.

How do I use the catalog to find the correct part number?

Each section shows an exploded diagram with reference numbers. Cross-reference the ref number with the part list on the same page. Check the “Remarks” column for engine family (6B5.9 F1, F2, F4). Double-check the dataplate on page 3 to verify your option number. Then order the part from Cummins using the listed part number. Works every time.

Stop wasting time on misordered parts. Access the Factory Manual and get the correct numbers the first time.