Cylinder Head Gasket 1G962-03313 | Verified Fitment for Kubota D902 BX2360 KX018-4

Cross-reference verified — every D902 suffix variant mapped to gasket thickness and fire ring profile before this Cylinder Head Gasket 1G962-03313 ships from Guangzhou.

Technical Specifications

Application Suitability

Why the Same Gasket Number Ships in Multiple Variants

The base number alone does not guarantee a seal — the engine suffix decides which cutout profile is correct.

A D902-E3B-MRG-1 and a D902-E3B-MRG-2 may share the same block casting but carry different head gasket profiles, particularly around the coolant transfer passages and fire ring diameter. When I first transitioned from parts catalog lookup to technical support, a customer ordered by the older manual reference for a Kubota D902, and the gasket oil passages were offset on arrival because the serial range had shifted. That job required a teardown and a second gasket. [NEED_CITE: engine serial number effect on cylinder head gasket selection for multi-variant diesel engines]

Across the BX2360, KX018-4, and RTV900 lines, the same Cylinder Head Gasket 1G962-03313 identifier spans engine builds that differ in head bolt spacing, bore alignment, and coolant port geometry. Relying on a cross-reference table without checking the suffix code or serial range is how workshops end up with a gasket that physically fits but leaks under thermal cycling.

Mapping D902 Suffix Codes to Gasket Geometry

Each suffix — E2B, E3B, E4B — represents a different emission or application generation of the D902, and the Cylinder Head Gasket 1G962-03313 must match the head casting of that specific generation. The fire ring inner diameter, coolant passage shape, and oil drain-back hole positions shift across these variants. We verify the suffix against our compatibility list before release, so the gasket that arrives aligns with your engine build, not just the base model family.

Superseded Numbers and What They Mean for Fitment

The replacement path from 1G962-03310 through 1G962-03312 to 1G962-03313 (cross-reference only) reflects design revisions Kubota made across D902 production runs. These numbers are generally interchangeable for the same engine suffix, but applying a discontinued number to a newer suffix code risks a mismatch in bore cutout or gasket thickness. [NEED_CITE: Kubota D902 cylinder head gasket supersession and interchangeability across engine variants] Our cross-reference verification traces each superseded number back to the engine serial ranges where it applies, so you are not guessing whether an older catalog entry still fits your machine.

Critical Dimensions to Verify Before Installation

Three measurements separate a correct fit from a costly rework. The fire ring inner diameter must match the cylinder bore to prevent combustion blow-by. The bolt hole pattern spacing must align with the head stud layout — even a millimeter of offset prevents proper clamping. Gasket thickness affects compression ratio and valve-to-piston clearance, particularly on engines that have had a previous head resurface. We check all three dimensions against the D902 variant specifications before dispatch, and a sample unit is available if you need to physically confirm fitment before committing to a bulk order for workshop stock.

The Hidden Cost of Shipping a Gasket That Almost Fits

A gasket with the right bolt pattern but wrong coolant passage alignment will seal at idle and fail once the engine reaches operating temperature. On a KX018-4 working a construction site, that failure means the machine is pulled off the job, the head is removed again, and the downtime compounds into missed deadlines. [NEED_CITE: cylinder head gasket failure modes related to coolant passage misalignment in compact diesel engines] For a distributor supplying multiple RTV900 variants, sending the wrong cutout profile means a return, a replacement shipment, and a customer who loses confidence in the supply chain. Fitment verification before the gasket leaves the warehouse eliminates both scenarios.

Why Source This Gasket Through XUNPO

Our Guangzhou facility produces selected gasket lines directly, while the remainder comes from ISO-certified manufacturing partners — both carry the same warranty terms and quality inspection. The Cylinder Head Gasket 1G962-03313 sits within a catalog of over 10,000 SKUs across eight core categories, so if the same D902 rebuild also needs valve stem seals, head bolts, or an overhaul kit, everything ships in one consignment under one account. Part identification works from a part number, machine model, engine photograph, or even a worn nameplate image. Cross-reference verification covers superseded and alternate numbers so you receive the correct variant, not just the closest match. A sample gasket is available for physical fitment confirmation before you commit to volume inventory. The technical team is on hand to confirm whether your specific D902 suffix code and serial range align with the gasket being dispatched.

Documentation & Verification

• Commercial invoice and packing list referencing 1G962-03313 and engine suffix confirmed
• Part compatibility and cross-reference sheet mapping D902 variants (reference only)
• Dimensional quality inspection record covering fire ring ID and bolt hole spacing
• Warranty terms document stating 3-12 month coverage against manufacturing defects
• Packing photographs showing gasket condition and labeling before crate closure
• HS code and customs documentation support for international shipment

Fitment Check Before Installation

• Compare the new gasket against the removed unit: fire ring diameter, bolt holes, coolant ports
• Verify D902 engine suffix code on the block casting matches the compatibility list
• Check gasket thickness with a micrometer — confirm it matches the head resurface history
• Align the gasket on the block dry before placing the head to confirm all passages are clear
• If any port or hole does not align, stop and contact us with photos for cross-reference re-check

Send Us Your Machine Details for a Fitment Confirmation

Provide the machine model, engine serial number, and the suffix code from the engine nameplate — even a photograph of a worn plate is enough to start. We will verify whether the Cylinder Head Gasket 1G962-03313 matches your specific D902 variant and return a confirmed compatibility statement along with a cross-reference trace for your records.

Frequently Asked Questions

Q: How do I confirm this gasket fits my specific D902 engine variant with its suffix code? A: Send us the engine serial number and the suffix code printed on the nameplate or block casting, such as D902-E3B-MRG-1. We cross-check it against our compatibility list for 1G962-03313, which covers D902, E2B, E3B, and E4B variants with their sub-model designations, and return a written confirmation before shipment.

Q: Are 1G962-03310, 1G962-03312, and 1G962-03313 fully interchangeable, or do they differ? A: These numbers represent a supersession path (cross-reference only) across Kubota D902 production runs. For the same engine suffix and serial range, they are generally interchangeable. However, applying an older number to a newer suffix code may result in a cutout or thickness mismatch. We trace each number to the applicable serial ranges to confirm interchangeability for your engine.

Q: I only have the machine model (BX2360 / KX018-4) — can you identify the correct gasket without a part number? A: Yes. The machine model narrows the D902 variant range, and from there we ask for the production year or engine serial to pinpoint the suffix code. A photograph of the machine nameplate or engine block helps when serial plates are worn. We then match 1G962-03313 or the correct variant to your specific build.

Q: What if my machine's nameplate is worn and I can only provide a photo of the engine block? A: A clear photograph of the engine block, particularly the casting numbers near the oil filter housing or bell housing flange, is often enough to identify the D902 variant and production range. We use those casting marks along with the machine model to verify the correct Cylinder Head Gasket 1G962-03313 fitment.

Q: Can I order one sample to verify fitment before placing a larger order? A: Yes, the minimum order is one piece. We recommend ordering a single gasket to physically check fire ring alignment, bolt hole spacing, and coolant passage position against your engine before committing to workshop inventory quantities. This eliminates trial-fitment risk on the actual machine.