Description

Volvo Penta TAD1241VE, TAD1242VE, TWD1240VE, TAD1250VE, TAD1251VE 2006 Parts Catalog

I’ve torqued head bolts on enough diesel engines to know that guessing part numbers costs time and money. If you’re working on a Volvo Penta TAD1241VE, TAD1242VE, TWD1240VE, TAD1250VE, TAD1251VE 2006 Parts Catalog is what you need on the bench. 303 pages of factory exploded diagrams and part numbers. No aftermarket reinterpretation. No “this should fit” nonsense. Every reference number ties back to a Volvo Penta casting. You don’t order parts by guesswork in my shop. You use the OEM catalog.

Cylinder Head Breakdown: TAD1241VE and TAD1242VE

Page 2 of this catalog shows the cylinder head group for the TAD1241VE and TAD1242VE. Forty-two referenced parts. Valve guides, seats, springs, collets, studs, plugs – all with factory part numbers. Need a replacement cylinder head? The exchange unit is part 3586779 for the TAD1241/42. The catalog also lists the front, middle, and rear bearing housings, each included in overhaul kit 3165309. That’s the kind of info you don’t get from a generic parts website. You get the exact screw lengths: L=127mm, L=106mm, L=70mm. No guessing.

What Parts Are Cross-Compatible Across These Engines?

The catalog covers five engine models: TAD1241VE, TAD1242VE, TWD1240VE, TAD1250VE, TAD1251VE. But not all parts swap. The cylinder head for the TAD1250VE and TAD1251VE is a different casting (3803924 exchange unit) with its own valve train specs. Page 4 breaks down those variants – inlet and exhaust valves, valve stem seals, springs, collets. If you try to order TAD1241VE valves for a TAD1250VE, you’ll get the wrong part. This catalog prevents that. It also notes that certain components, like the studs (8170626) and cap plugs, are shared across the family. Factory notation tells you exactly.

3 Reasons to Use the OEM Parts Catalog

First, accuracy. Every part number in this PDF matches Volvo Penta’s current system. Second, supersession. The catalog includes exchange units and notes like “E.U=3803667” so you know if a newer part replaces an older one. Third, no cross-reference errors. Aftermarket catalogs sometimes list a part that fits 90% of applications. That 10% gets you a leaky head or a valve that drops. I’ve seen it. Use the real thing. For an explanation of how diesel engine components interact, see this Wikipedia article on diesel engines – basic theory helps, but parts selection comes from OEM data.

Valve Train Components: TAD1250VE and TAD1251VE

Page 2 and page 4 show the valve groups. For the TAD1250/51, you get twelve inlet valves (20463800) and twelve exhaust valves (20441486). Valve stem seals (859171) – twenty-four per engine. Spring sets with washers and collets. If you’re rebuilding a TAD1250VE head, the catalog gives you the exact quantities and the overhaul kit options. The de-carbonizing kit is referenced to group 99, which is probably elsewhere in the book. That’s a factory structure – you follow the cross-references, you don’t get stuck.

Get the Right Part Numbers Before You Order

Calling a parts counter with “I need a valve” is a waste of time. Open this catalog, find the engine variant, note the REF number (e.g., 20463800), and order that. No ambiguity. The catalog is searchable if you have the PDF. Bookmark the cylinder head group for your engine. If you are also working on the TAD1241GE or TAD1242GE, check the related manual: Volvo Penta TAD1241VE TAD1242VE TAD1240GE TAD1241GE TAD1242GE Workshop Manual 76. Need the parts catalog for just the TAD1241VE/TWD1240VE/TAD1250VE? Look at Volvo Penta TAD1241VE/TWD1240VE/TAD1250VE 2006 Parts Catalog – OEM. There is also a combined catalog for TAD1241VE, TAD1242VE, TWD1240VE here: Volvo Penta TAD1241VE TAD1242VE TWD1240VE Parts Catalog OEM.

Does this catalog include torque specifications?

No. This is a parts catalog, not a service manual. Torque values are found in the workshop manual. Do not guess torque – use the factory spec.

Can I use this catalog to identify parts for the TAD1252VE?

Yes. The catalog explicitly includes TAD1252VE in its coverage. Page 2 and page 4 reference TAD1250/1251/1252VE together. The same cylinder head group (21) lists part numbers applicable to the TAD1252VE. Valve seats, springs, and other components carry the same REF numbers unless noted. Always verify the “NOTES” column – for example, valve seat O.S=0.20mm indicates an oversize part. If your TAD1252VE has a different cylinder head casting, the catalog includes both standard and exchange options. Use the engine serial number to confirm, but the catalog covers the vast majority of production. I’ve used it myself to source head gasket kits for a TAD1252VE – the de-carbonizing kit reference points to group 99, which lists the complete gasket set. You will need the workshop manual for installation procedures, but for parts identification, this catalog is the only source you should trust.

You have the engine torn down and you need the correct parts. Don’t rely on aftermarket cross-reference tables. Get the factory documentation that Volvo Penta intended for their dealers. Access the Factory Manual now and keep it on your tablet or printed out. 303 pages of part numbers, exploded views, and interchange notes. That’s the difference between a repair that holds and one that comes back.