Cylinder Head Gasket 1E010-03310 | Verified Fitment for Kubota D1105

Verified Cross-References — Eight superseded and alternate reference numbers mapped to confirm valid replacement paths for the D1105 cylinder head gasket before you order.

Technical Specifications

Application Suitability

Why the Same D1105 Part Number Ships in Multiple Variants

A cylinder head gasket for Kubota D1105 engines must match the exact sub-model bead profile and bolt-hole pattern, not just the base engine family.

The D1105 platform was factory-configured into more than a dozen sub-models — E2B, EB, B-series — each built for a different equipment maker such as JLG, Kaeser, Moffett, or Skyjack. These sub-models carry distinct gasket bead profiles and coolant passage arrangements. A cross-reference table that treats them as interchangeable will point you to a gasket that looks right on the outside but fails to seal once the head is torqued down. I have seen this exact scenario on a Kubota D1105 pulled from a telehandler: the outer dimensions matched perfectly, yet two combustion seal beads sat a few millimetres off the bore centres, causing a compression leak that forced a second teardown. [NEED_CITE: engine variant gasket profiling for multi-OEM industrial diesel platforms]

Matching Machine Model Plates to the Correct D1105 Sub-Model

When the engine serial plate is corroded, painted over, or simply missing — which happens regularly on older KX41-2 and KX61-2 units that have lived through several paint cycles — the machine model plate is often the only starting point. Mapping from machine model back to engine sub-model requires checking the production date range and cross-referencing the factory engine build records. For instance, early KX41-2 units typically carry a D1105-B variant, while later S-series machines may have shifted to an E2B configuration. A cylinder head gasket for Kubota D1105 ordered against the wrong sub-model will physically bolt on but will not maintain a combustion seal under load. Providing both machine model and any readable engine serial eliminates guesswork and narrows the correct gasket down to a single variant.

Locating Sleeves, Bolt-Hole Pattern, and Coolant Passage Alignment

Verifying the Gasket Profile Against Your Block

The D1105 block uses two locating dowels to position the cylinder head gasket for Kubota D1105 applications. If the dowel holes on the replacement gasket do not align precisely with the block pins, the gasket will sit slightly off-centre. That offset shifts the combustion bead away from the cylinder bore edge, creating a path for blow-by. Before confirming an order, request a dimensional drawing or photograph and overlay it against the block face. Checking the three primary coolant passage openings is equally important — on some E2B variants, one passage is relocated compared to the B-series layout. [NEED_CITE: cylinder head gasket dowel alignment verification procedures]

Tracing the Superseded Number Chain

Eight reference numbers are associated with this gasket position: 1E010-03310, 1E010-03312, 1E038-03310, and 1G643-03310 among them. These numbers trace a lineage across Kubota engine generations and equipment families. The earlier 1G643-03310 number appeared on first-generation D1105 builds used in the B2400 tractor series, while 1E010-03312 replaced it on later E2B builds found in the RTV1100 line. Confirming which legacy numbers remain valid interchange references for your specific variant prevents ordering a gasket cut for a discontinued bore pattern. A cross-reference verification that includes the full supersession trail — not just a single lookup row — is what separates a correct match from a costly misfit.

Reading the MLS Construction for Your Application

This replacement gasket uses multi-layered steel construction, which consists of two or more thin stainless steel plates with a raised elastomer coating around the combustion seal beads. MLS gaskets compensate for minor surface irregularities on the block and head mating faces, making them suitable for engines that have been resurfaced during a previous rebuild. The steel layers provide structural rigidity under combustion pressure, while the elastomer layer seals coolant and oil passages at lower clamping loads. For D1105 engines operating in high-cycle applications such as zero-turn mowers and compact excavators, the MLS design maintains seal integrity across repeated thermal expansion and contraction cycles.

The Cost of a Gasket That Fits the Number but Not the Variant

Installing a cylinder head gasket that matches a superseded part number but not the actual engine variant typically reveals itself only after the head is torqued and the engine is started. The symptoms — external coolant weep or compression loss on one cylinder — mimic other head gasket failure modes, leading to misdiagnosis and a second teardown. Each teardown on a compact excavator like the KX61-2 means removing the radiator, exhaust manifold, and injector lines, draining coolant and oil, and losing a full working day. When the machine is the only excavator on a small site, the indirect cost of a variant mismatch extends well beyond the gasket itself. [NEED_CITE: rework cost implications of misidentified engine gasket variants]

Why Verify Fitment Here Before Ordering

Our technical team confirms variant-level match using your machine model, engine serial, or a photograph of the old gasket — not just a part number lookup. We cover the full supersession chain across all eight reference numbers so legacy D1105 builds remain identifiable. Selected lines are produced in our own facility with the same QC standards applied to sourced supply, meaning every gasket ships under one warranty. Guangzhou warehouse stock on common D1105 variants allows quick release without waiting for a production run. We also offer a single sample unit so you can trial-fit the gasket on the block before committing to a bulk order for your workshop or distribution stock.

Documentation & Verification

• Commercial invoice and packing list referencing 1E010-03310 and all applicable cross-reference numbers (reference only)
• Fitment and cross-reference sheet mapping machine model to D1105 sub-model and gasket variant
• Dimensional quality inspection record covering bolt-hole spacing and locating sleeve diameter
• Warranty terms document covering manufacturing defects for 3-12 months from delivery
• Packing photographs showing gasket flat-packed with protective interleaving before crate closure
• HS code and customs documentation support for international aftermarket parts shipments

Fitment Check Before Installation

• Lay the gasket on the clean block face and confirm both locating dowels seat fully without forcing
• Verify all cylinder bore openings align concentrically with the piston crowns visible through the bores
• Check that the three primary coolant passages on the gasket match the block casting openings
• Compare the new gasket directly against the removed unit, overlaying them on a flat surface
• If any dowel hole, bolt hole, or passage is misaligned, stop and request a cross-reference re-check before proceeding

Provide Your Machine Details for a Variant Match

To confirm the correct cylinder head gasket for Kubota D1105 variant, share the machine model plate details, any readable engine serial number, or a photograph of the old gasket laid on a flat surface. If you hold a legacy part number such as 1G643-03310, include it so we can trace the supersession path. For bulk orders to workshop or distributor stock, request a sample unit for physical trial fitment before full quantity release.

Frequently Asked Questions

Q: How do I confirm this gasket fits my specific D1105 engine variant? A: Provide the machine model plate information and any readable engine serial number. We cross-reference those against the D1105 sub-model list — covering E2B, EB, and B-series variants — to confirm the correct bead profile and bolt-hole pattern. A photograph of the old gasket also helps when serial plates are unreadable.

Q: My old part number is 1G643-03310 — is that still a valid replacement? A: Yes, 1G643-03310 is one of eight reference numbers in the supersession chain for this gasket position. We verify whether it maps directly to your engine variant or whether a later number applies. Send us the machine model or engine serial so we can confirm the correct current replacement.

Q: I only have my machine model, not the engine number — can you still match the right gasket? A: In most cases, yes. Machine models such as KX41-2, RTV1100, and ZD1211 map to specific D1105 sub-model ranges based on production date. We narrow the variant using model-specific build data and may ask for a photo of the block face or old gasket to resolve any remaining ambiguity.

Q: Can I order one sample to test fit before buying in quantity? A: Yes, sample units are available for physical trial fitment on your block before you commit to a bulk order. This is especially useful for repair shops and distributors stocking gaskets for mixed-age Kubota fleets where engine variants may differ across machines.