<p><strong>1G962-03313 Cylinder Head Gasket for Kubota D902</strong> — multi-layer steel with elastomeric coating, compatible with D902-E2B / E3B / E4B series engines.</p> <ul> <li>Replaces cross-reference 1G962-03310, 1G962-03312 for top-end overhaul on BX, KX, RTV, and ZD models</li> <li>Supplied as part of a matched sealing set including valve cover gasket, injector seals, and head bolts sized to your engine serial variant</li> <li>Full overhaul kit contents verified item-by-item before dispatch to prevent missing seals during rebuild</li> </ul>
MOQ
1 Piece
Lead Time
2-5 Business Days
Shipping
120+ Countries
Warranty
3-12 Months
Compatible Brands
Matched Set Shipped — full top-end gasket and bolt kit dispatched under one QC record for D902 variants.
| Parameter | Value |
|---|---|
| Part Number | 1G962-03313 |
| Product Type | Head Gasket |
| Cross-Reference | 1G962-03310, 1G962-03312, 1G96203310, 1G96203312, 1G96203313 (reference only) |
| Machine Fitment | BX2230D, BX2350D, BX2360, BX2370, BX2370-1, BX2380, BX2380-1, BX23S, BX23S-1, BX24D, BX25, BX25DLB, BX25DLB-1, KX018-4, KX41-3, U17, RTV900G, RTV900G6, RTV900G9, RTV900R-SD, RTV900R-SDL, RTV900R6, RTV900R9, RTV900T, RTV900T5-H/T2, RTV900T6, RTV900T9, RTV900W, RTV900W6, RTV900W6SE, RTV900W8SE, RTV900W9, RTV900W9SE, RTV900XTG, RTV900XTR, RTV900XTS, RTV900XTT, RTV900XTW, RTV-X900G, RTV-X900R, RTV-X900W, ZD1021, ZD1021-3, ZD323 |
| Material | Multi-layer steel (MLS) with elastomeric coating |
| Compatible Engine Models | D902, D902-E2B, D902-E3B, D902-E4B series and sub-variants |
| Thickness Tolerance | ±0.02 mm |
| Surface Hardness | HV320–360 |
| Condition | New Aftermarket |
| Standard | ISO 9001 |
| Warranty | 3–12 months against manufacturing defects |
| Engine System | Related Components |
|---|---|
| Cylinder head sealing | Head bolt set, valve cover gasket, thermostat housing gasket |
| Fuel injector sealing | Injector copper washers, injector return line seals |
| Exhaust manifold interface | Exhaust manifold gasket, heat shield fasteners |
| Top-end overhaul kit | Complete gasket set matched to D902 engine serial suffix |
A head gasket without its matched fasteners and adjacent seals turns a two-day job into a two-week stall.
In a Shandong rebuild bay, I watched a D902 come apart for a simple compression loss. The Head Gasket for Kubota D902 engine overhaul rebuild arrived on schedule, but the head bolts and injector washers were still sitting in a different supplier's warehouse three provinces away. The block sat open, collecting dust on the deck surface, until the rest of the kit finally showed up. That single missing fastener set cost the owner more in lost machine time than the entire gasket kit was worth [NEED_CITE: cylinder head fastener reuse and yield-point torque standards for small-bore diesel engines].
This MLS head gasket seals the combustion boundary between the cylinder head and block on the Kubota D902 family. It works as one element in a chain that includes the valve cover gasket above, the exhaust manifold gasket to one side, and the injector copp* a Head Gasket for Kubota D902 engine overhaul rebuild exposes every one of those interfaces. Reusing any of them is a gamble against a comeback.
The D902-E2B, D902-E3B, and D902-E4B suffixes all accept this same base gasket number, yet the head bolt torque sequence and valve cover gasket profile can differ between them. An E4B variant running tighter emission hardware may carry a different bolt stretch specification than an E2B in a legacy tractor. Confirming the full engine suffix before the kit ships prevents the wrong bolt set from landing on the bench [NEED_CITE: engine serial suffix identification and torque specification cross-reference practices].
The multi-layer steel construction with elastomeric coating replaces the older composite gaskets that required a retorque after the first heat cycle. MLS maintains clamp load across thermal expansion without follow-up intervention. The ±0.02 mm thickness tolerance keeps deck sealing consistent across all three cylinders, and the HV320–360 surface hardness resists fire-ring erosion under sustained combustion pressure typical in compact excavator duty cycles.
Ordering the head gasket alone and sourcing bolts, injector washers, and cover seals separately seems cheaper until the machine sits torn down waiting for the last piece. Every day the block stays open is a day the shop bay is blocked and the machine earns nothing. I have seen a single missing copper washer hold up a complete reassembly long enough to miss a contractor's pouring deadline [NEED_CITE: downtime cost accumulation during incomplete engine rebuilds in compact equipment].
XUNPO consolidates the head gasket, valve cover gasket, exhaust manifold gasket, injector seals, and head bolt set into one consignment under a single quality inspection record. Both self-produced and sourced lines carry identical QC and warranty terms, so the entire top-end kit is traceable through one document set. The technical team verifies the D902 suffix against the kit contents before dispatch, catching variant mismatches before they reach the bay.
Send the full engine model and suffix — for example, D902-E3B-SCG-1 — along with any prior rebuild history or oversize work already performed on the block. If the nameplate is unreadable, a photograph of the casting number on the block and the existing gasket outline is enough for the technical team to confirm the correct variant and matched kit contents.
Q: What else should I replace when changing the cylinder head gasket on a D902? A: Plan to replace the head bolt set, valve cover gasket, exhaust manifold gasket, thermostat housing gasket, and injector copper washers in the same session. These seals share the same exposure history and removing the head gives full access to every one of them. Reusing old fasteners or adjacent seals is the most common cause of early comeback after a head gasket job.
Q: Does the same 1G962-03313 gasket fit all D902 engine suffixes? A: The base gasket number fits across E2B, E3B, and E4B variants, but the associated head bolt torque sequence and valve cover gasket profile may differ. Confirm your exact engine suffix so the matched kit includes the correct bolt set and cover seal. This verification happens before the kit ships.
Q: Can I order a complete top-end gasket and bolt kit in one shipment? A: Yes. The head gasket, valve cover gasket, exhaust manifold gasket, injector seals, and head bolt set are consolidated into one consignment under a single quality inspection record. This eliminates split deliveries and ensures every component arrives together so the rebuild proceeds without waiting on back-ordered pieces.
Q: How do I confirm which D902 variant is in my machine? A: The full engine suffix is stamped on the identification plate attached to the valve cover or block side. If the plate is worn or painted over, photograph the casting number on the block and the existing gasket outline. The technical team uses these images to verify the exact variant and confirm kit compatibility before dispatch.
Q: What torque sequence applies after fitting an MLS head gasket? A: MLS gaskets on the D902 follow the manufacturer's angle-torque sequence specific to your engine suffix. The bolts are tightened in stages to a defined torque value, then turned through a specified angle. New bolts must be used because previously yielded fasteners cannot achieve the correct clamp load on the second installation.
<p>Each component in this overhaul kit is verified against the engine's rebuild history before dispatch to prevent oversize or undersize mismatch.</p>
View Details<p><strong>31A94-00081, 31A94-02060, 31A94-03020, 644.600 Overhaul Gasket Kit</strong> — complete sealing set compatible with Mitsubishi S4L and S4L2 engine variants, featuring multi-layer steel head gasket and ASTM D2000 Grade CR7 rubber components.</p> <ul> <li>Supplies matched cylinder bore seals, torque-limiting washers, and all gaskets required for a full S4L/S4L2 rebuild in one verified kit</li> <li>Head gasket built with three stainless-steel layers and elastomer coating for thermal cycling stability across compact excavator and generator set duty cycles</li> <li>Kit contents verified against specific engine build requirements, including variant suffix designations such as S4L2-61SD and S4L2-Y262SD</li> </ul> <p>Overhaul kit contents cross-checked item by item against your engine serial and rebuild history before dispatch.</p>
View Details<p><strong>1G962-03042 Complete Cylinder Head with MLS Gasket Kit for Kubota D902 Engine Overhaul</strong></p> <ul> <li>Fits D902, D902-E2B, D902-E3B, D902-E4B variants in Kubota BX23S, KX41-3, ZD323 and compatible machines</li> <li><strong>Gray cast iron (ASTM A48 Class 30)</strong> deck surface at Ra ≤ 1.6 μm ensures uniform MLS gasket compression</li> <li>Valve seat inserts hardened to 45–48 HRC for sustained high-temperature combustion sealing</li> <li>Coolant passages flow-tested at 1.2 bar to verify casting integrity before dispatch</li> </ul> <p>Overhaul kit contents cross-checked against D902 variant specs so matched head, gasket and fastener components ship together for rebuild sequencing.</p>
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