Matched Set Shipped — full top-end gasket and bolt kit dispatched under one QC record for D902 variants.
Technical Specifications
| 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 |
Application Suitability
| 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 |
What Else Must Be on the Bench When This Head Gasket for Kubota D902 Engine Overhaul Rebuild Arrives
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].
Where This Gasket Sits Inside the D902 Sealing System
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.
Serial Variants That Share the Number but Not the Torque Chart
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].
Reading the Material Choice for What It Eliminates
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.
The Hidden Cost of a Gasket-Only Order
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].
Why This Head Gasket for Kubota D902 Engine Overhaul Rebuild Ships as a Matched Set
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.
Documentation & Verification
- Commercial invoice listing each gasket and fastener line item separately
- Cross-reference sheet mapping 1G962-03310, 1G962-03312 variants (reference only)
- Dimensional check record confirming gasket thickness and bore alignment
- Warranty terms covering the complete kit under one claim window
- Packing photographs showing kit contents before carton closure
- HS code provided for customs clearance on international shipments
Installation & Rebuild Sequence
- Clean the block deck to bare metal and verify flatness before placing this MLS gasket
- Install new head bolts rather than reusing yielded fasteners from the previous build
- Follow the D902-specific torque sequence and angle-tightening steps for the confirmed engine suffix
- Replace injector copper washers and valve cover gasket in the same session to avoid comebacks
- Run the initial heat cycle and verify no weeping at the head-to-block joint before returning to service
Requesting the Right Kit for Your D902 Variant
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.
Frequently Asked Questions
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.
