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Kobelco Gaskets and Oil Seals: Why One Part Number Is Often Several

Cylinder head gaskets, rocker cover gaskets and crankshaft seals are where parts ordering most often goes wrong. How multi-marking works, and what to send.

Blog / Kobelco Gaskets and Oil Seals: Why One Part …
October 5, 2026 · Shenyue Kobelco Parts Team
Kobelco filter and seal parts supplied by Guangzhou Shenyue Machinery Technology Co., Ltd., Guangzhou
We stock and supply filter and seal parts for Kobelco machines — genuine, OEM and aftermarket grades are declared on every quotation. Send your part number and a nameplate photo for current pricing.

Gaskets and oil seals are the cheapest parts in an engine and the ones most often ordered wrongly, because they are the parts where a single physical item carries several numbers. A cylinder head gasket for one engine family may be supplied under three references that all fit and are not all the same thickness; a crankshaft seal may appear under a manufacturer number and a supplier number with no obvious relationship between them. Ordering from the engine number, and understanding that multi-marking is normal, is what stops a rebuild waiting on the wrong gasket. Guangzhou Shenyue Machinery Technology Co., Ltd. supplies gaskets, seals and full overhaul kits by engine family.

Multi-marking is a feature, not a mistake

Kobelco machines were built with Hino, Isuzu, Yanmar and Mitsubishi engines across different generations, and the same engine was supplied under several part-number systems over a production life. Our stock list shows this directly: cylinder head gaskets appear as VAME081734, as VH11115E0090 / VH111152870A and as VH11115E0151 / VH11115E0140 / VH111152900A for different engine families and generations. The correct approach is not to guess which number looks familiar but to quote the engine model and serial from the nameplate and let the reference be confirmed, with any supersession explained on the quotation.

Where gasket selection goes wrong

Thickness and grade.Head gaskets for the same engine can differ in thickness or in material grade for turbocharged and non-turbocharged variants. Fitting the wrong one changes compression and clearance.
Kit versus individual.An overhaul gasket kit such as VH04111E0H53 / VHS040104187 / VH04111E0H53C1SX covers the whole engine; buying the same gaskets individually costs more and risks missing one.
Reusing gaskets.Head, rocker cover and injector cover gaskets — including VA32G0400200 and VH2368178030 / VHS230741070 — are single-use items. Reused gaskets leak, and the second dismantling costs far more than the gasket.
EGR and ancillary joints.Small gaskets such as VH25634E0020 are forgotten in the parts list and discovered missing during assembly, which is how a one-day job becomes a three-day job.

Crankshaft seals: front, rear and direction of rotation

Crankshaft seals are directional components. Their lip is designed to pump oil back into the engine as the shaft turns, so a seal fitted the wrong way round, or a seal from a similar engine with opposite rotation, leaks from the moment the engine runs. Our references include front crankshaft seals VA3431100800 / AE3527G and VHSZ31179002 / VH982879103A; when a seal is ordered, the engine number and the seal position confirm it. The same principle applies to hydraulic oil seals such as XZ0532E / LC32W01033P1C: dimension and application, not appearance, decide the part.

What to send for a gasket or seal quotation

Send the engine model and serial from the nameplate, the machine model and serial, the position of the part (which joint, which end of the crankshaft), and a photograph of the old part with any markings visible. Where a full rebuild is planned, say so, because a complete gasket kit is usually cheaper than the individual pieces and guarantees that nothing is missed. With those details Guangzhou Shenyue Machinery Technology Co., Ltd. confirms the reference, notes any supersession and quotes within 24 hours.

Shenyue tip: for a rebuild, quote the gasket kit and the seals together — head, rocker cover, injector cover, sump, front and rear crank seals. It is the cheapest way to avoid a second dismantling, and Guangzhou Shenyue Machinery Technology Co., Ltd. marks each line genuine, OEM-quality or aftermarket so the kit can be built to the machine's duty.

How we supply

Guangzhou Shenyue Machinery Technology Co., Ltd. has specialised in Kobelco parts since 2007, with 4 warehouses over 1000 m² in Guangzhou, 3,000+ part types on the shelf and 100,000+ part numbers available to order through original supply channels. Shenyue is an independent supplier and is not an authorized dealer of Kobelco Construction Machinery Co., Ltd.; for Kobelco, Hino, Isuzu, Yanmar, Cummins, Kawasaki, Nabtesco, KYB and KPM we supply genuine parts ordered through original supply channels alongside quality replacement alternatives, at prices close to agent level, and the five brands we hold formal authorization for — Mitsubishi, Garrett, TONGMYUNG, Marusan and NIKURA — are named on every quotation. Browse engine parts and the filters and lubricants category, and always quote by engine number for engine-family parts. Hino's published engine service data at hino-global.com is a useful cross-reference for engine-family gasket and seal specifications.

Frequently Asked Questions

Why does my Kobelco head gasket have more than one part number?

Because the same engine was supplied under several numbering systems across its production life, so a single gasket can carry a manufacturer reference and one or more supplier references that all fit. Quote the engine number from the nameplate and Guangzhou Shenyue Machinery Technology Co., Ltd. confirms which applies, with any supersession stated on the quotation.

Can I buy the gaskets I need individually instead of a full kit?

You can, but an overhaul gasket kit such as VH04111E0H53 / VHS040104187 / VH04111E0H53C1SX usually costs less than the individual pieces and removes the risk of a missing gasket stopping assembly. For a single joint repair, individual gaskets are the sensible purchase.

How do I make sure a crankshaft seal is fitted the right way round?

Check the markings and the lip direction against the old seal before fitting, and confirm the part by engine number and position. Seals are directional and a reversed or mismatched seal will leak as soon as the engine runs.

Need the parts this article talks about?

Send your part numbers and a photo of the nameplate — real photos and pricing come back with the quote.

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