Description

JCB T6354 Parts Catalog – Factory Part Numbers for Cylinder Block Assembly

I’ve spent enough hours chasing down the wrong part number from aftermarket catalogs to know why you’re here. You need the exact JCB T6354 part – not a “cross-reference” that ends up being a different thread pitch or a gasket that’s 2mm too thin. This JCB T6354 Parts Catalog is a straight-from-the-factory document, 192 pages of exploded views and OEM part numbers. No reprints, no third-party summaries. Page 1 shows the cylinder block assembly with every plug, stud, and seal listed by quantity and build variant (S, X, Y). If you’re rebuilding a 1-4 cylinder block on a JCB T6354, this is your only source that won’t waste your time.

Cylinder Block Assembly: Exploded View Breakdown

Look at the first two pages of this catalog. The cylinder block assembly (item 1, part number 354U56086TL) is drawn with every fastener, plug, and gasket called out. The table lists each part with its change number, description, and quantity off for three build specifications – S, X, Y. That’s the kind of detail that lets you order exactly what you need for your specific engine variant. The parts catalog doesn’t guess; it gives you the part number and the superseded numbers. For example, the tappet cover appears in four different part numbers depending on turbo drain configuration – 37554564, 37554114, 37554549, 37554552. You’ll see them all on page 2.

Plug and Stud Identification – 16 Different Plugs

This manual lists plugs by location and thread code. Items 2 through 19 cover thimbles, shimwashers, bolts, liner slip fits, and various plugs (0650553, 0650557, 32417133, etc.). Each plug has a specific part number and quantity. You don’t have to measure threads or guess what fits. The JCB T6354 parts catalog also includes studs (item 29: 0826220, 0826211, 0826230) with the nut and spring washer combinations. If you’re doing a bottom-end rebuild, these pages save you from ordering a generic bolt kit that might not match the torque-to-yield spec.

Gasket and Seal Specifications – Factory Supersessions

Page 2 shows the gasket for the housing – superseded from 36812545 to 36812547. That’s a real factory supersession, not an aftermarket “fits all” claim. The catalog also lists seals (item 36: 2415391) and the oil pressure switch (item 46: 2848062, superseded to 256780761). When I’m ordering parts, I want to know if the original part was replaced by a newer design. This manual shows that in the change number column. Don’t rely on a parts counter guy reading a screen – this catalog puts the supersession history in your hands.

Torque Values and Installation Notes

While this is a parts catalog, not a service manual, the exploded views include fastener descriptions that hint at torque requirements – bolts like 32181414 and spring washers 36151505. For actual torque specs, you’ll want to pair this with the JCB T6354 service manual. But for parts identification, this catalog is the foundation. Every bolt, plug, and washer is listed with its official part number. No cross-referencing, no dead ends. You can go straight to the JCB dealer or your parts supplier with a valid OEM number.

3 Reasons to Choose OEM Documentation

Aftermarket parts catalogs often redraw exploded views and miss details like the build variant columns (S, X, Y). The JCB T6354 Parts Catalog shows three separate quantity columns for the same assembly – because one build may use a different plug count or a different tappet cover. That’s information you won’t get from a scan of a generic catalogue. OEM docs also include supersession tables – see item 34 where the gasket changed mid-production. If you buy a generic gasket set, you might get the old version. This catalog tells you the current part number.

Does This Manual Cover the Fuel System?

No. This parts catalog focuses on the 1-4 cylinder block assembly. It does not cover fuel injection, turbocharger, or electrical systems. For fuel system parts, look for the JCB T6354 service manual or a dedicated fuel system supplement. But if you need to identify a plug, stud, gasket, or seal in the cylinder block, this is the exact document.

Who Needs This Parts Catalog?

If you’re a shop mechanic tearing down a JCB T6354 engine for an overhaul, you need this. If you’re a home garage enthusiast rebuilding a machine and you want to order the correct cylinder block assembly parts, you need this. Beginners should understand that a parts catalog shows you which parts exist, not how to install them. Use it alongside the service manual. But if you’ve ever opened a box from an online parts store and found the wrong plug or a gasket that doesn’t match your engine’s build code, you’ll appreciate the build-variant columns on every page.

Source Validity – Factory Original, Not a Reprint

This PDF comes from JCB’s own technical documentation. It’s not a scan of a second-generation reprint. The page numbering, part numbers, and change numbers are exactly as JCB printed them. Compare that to aftermarket manuals that often omit the change number column or blur the part numbers. I’ve had enough headaches with aftermarket wiring diagrams that got the pinout wrong – I’ll take a factory parts catalog like this every time. For a detailed discussion of diesel engine components, you can reference this Wikipedia article on diesel engines to understand the broader context of cylinder block design. But for part numbers, stick to the OEM source.

Related Manuals

• JCB JCB1 Parts Catalog – 94 Pages of Factory Part Numbers
• JCB 1D Parts Catalog – Factory Part Numbers & Exploded Views
• JCB 7, 7C, 8C, 8D Parts Catalog – 497 Pages of OEM Part Numbers

For a broader understanding of four-stroke diesel engine architecture, this Wikipedia article on diesel engines can help you see how the cylinder block fits into the bigger picture.

Frequently Asked Questions

Does this parts catalog include torque specifications?

No. It is a parts identification document. Torque values are in the service manual.

How do I read the build variant columns (S, X, Y)?

Each column shows the quantity of a part used in a specific engine configuration. For example, on page 1, item 1 cylinder block assembly has quantity 1 for all builds, but item 29 stud 0826220 has quantity 8 in S, 8 in X, and 10 in Y. You must match your engine’s build code to order the correct quantity.

Can I use this catalog to order parts for a different JCB engine model?

Only if the parts are shared. This catalog is specific to the JCB T6354 1-4 cylinder block. Other models may use different part numbers. Cross-check against the model’s own catalog.

What if a part number has been superseded – does the catalog show both old and new numbers?

Yes. Item 34 shows the gasket superseded from 36812545 to 36812547. Item 46 shows the oil pressure switch superseded from 2848062 to 256780761. The catalog lists the original number and the superseded number in the description or change column.

You need the right part for the JCB T6354 cylinder block – not a guess, not a generic substitute. This factory parts catalog puts every plug, stud, gasket, and seal in front of you with OEM part numbers and build-specific quantities. Stop wasting time with aftermarket reference charts that skip details. Access the Factory Manual from AutoRepairManuals and get the actual JCB documentation that belongs on your bench.