Cylinder Head 7247453 & Gasket Kit – Verified Fitment for Kubota D902

Cross-Reference Verified Fitment — This Cylinder Head & Gasket Kit is matched against Kubota D902 serial variants and Bobcat MT55/MT85 build differences before dispatch, not just a catalog number lookup.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Several Variants Across Builds

A cylinder head that bolts on does not always seal correctly if the gasket set does not match the specific engine serial.

Cross-reference tables copied between sellers often carry forward errors from older editions. A Cylinder Head 7247453 for Kubota D902 / Bobcat MT55 MT85 fitment may appear interchangeable across several Kubota D902 sub-variants, yet the valve cover bolt hole spacing, coolant port position, or combustion chamber volume can differ between production runs. I once supported a customer who ordered a cylinder head based on a service manual printout, only to find the bolt pattern on the actual engine had shifted after a mid-production revision. The machine sat idle while a replacement was sourced. [NEED_CITE: Kubota D902 engine serial identification and variant tracking]

Machine Model and Serial Range Coverage

This cylinder head is verified against Kubota D902 and D902-E3B-BC-1 engine serial ranges, as well as Bobcat MT55 and MT85 mini track loader installations. The key is not just the model badge but the production sequence — early D902 blocks may have different port layouts than later ones. Our verification process checks the casting number and serial range against known variant boundaries before confirming fitment.

Interface and Mating Surface Verification

Before dispatch, we confirm bolt hole count and spacing on the valve cover flange, coolant passage alignment, and injector or glow plug port positions. The included gasket kit (7000463, 7247479, 7000464, 7247480) is matched to the specific cylinder head casting so that all mating surfaces seal without requiring separate sourcing. Mismatched gasket thickness can alter compression ratio and valve timing geometry, leading to premature failure. [NEED_CITE: cylinder head gasket thickness impact on compression ratio in small diesel engines]

Reading the Specifications That Matter

The gasket kit contents deserve close attention. Each gasket in the set serves a distinct sealing function: head gasket, valve cover gasket, intake and exhaust manifold gaskets. If a previous rebuild used non-standard fasteners or altered the deck surface, the standard gasket thickness may not compensate. The precision-machined mating surfaces on this cylinder head are finished to match OEM specification tolerances for the D902 platform, but the installer must verify block deck flatness before assembly. Warpage beyond service limits on the block side will cause the new head gasket to fail regardless of head quality.

The Cost of Installing the Wrong Variant

A cylinder head that physically bolts down but has incorrect coolant passage alignment will cause localized overheating that may not show up until hours into operation. By then, thermal stress has already warped the new casting. Return shipping of a heavy iron or aluminum casting adds cost and extends downtime. Worse, a head with slightly wrong combustion chamber volume changes compression behavior across cylinders, producing uneven wear that surfaces weeks later as ring blow-by. [NEED_CITE: effects of combustion chamber volume variation on diesel engine cylinder balance]

Why Source This Cylinder Head Here

Our technical team verifies cross-reference numbers including superseded and alternate references (7000463, 7247479, 7000464, 7247480 are reference only) against your specific machine serial before confirming the order. We supply from our own production lines and qualified ISO-certified partners under one warranty, so the cylinder head and its gasket kit carry the same terms. Minimum order is one piece — no MOQ barrier for a single emergency replacement. Guangzhou warehouse stock on common items supports faster dispatch. We can identify the correct part from a machine model alone when the nameplate is worn or painted over, and we offer sample supply so you can physically verify fitment before committing to a larger quantity.

Documentation & Verification

• Commercial invoice listing cylinder head part number and gasket kit contents separately for customs clarity
• Cross-reference sheet showing 7247453 against alternate numbers, marked reference only
• Dimensional inspection record covering bolt pattern, port spacing, and deck flatness
• Warranty terms document specifying coverage period and manufacturing defect scope
• Packing photographs showing head protection and gasket kit sealing before crate closure

Fitment Check Before Installation

• Compare bolt hole pattern on new cylinder head against removed unit before lifting onto block
• Verify coolant and oil passage alignment by placing head on block without gasket first
• Check valve cover bolt hole count matches your existing cover or replacement cover
• Confirm gasket kit part numbers match the cylinder head casting number received
• If any dimension does not match, stop installation and contact us with photographs for exchange

What We Need to Confirm Your Fitment

Provide your machine model and engine serial number, or send a photograph of the existing cylinder head casting number and the engine nameplate. If the nameplate is unreadable, a photo of the valve cover bolt pattern and coolant port positions is usually sufficient for us to identify the correct variant. For bulk orders, request a sample unit for physical trial fitment before we ship the full quantity.

Frequently Asked Questions

Q: How do I confirm this cylinder head fits my Kubota D902 or Bobcat MT55/MT85? A: Send us the engine serial number from the nameplate or a photo of the existing cylinder head casting. We cross-check the serial range against known D902 variant boundaries — including D902-E3B-BC-1 differences — and confirm bolt pattern, port positions, and gasket kit match before shipping.

Q: My old part number is different from 7247453 — is it superseded or a variant? A: Kubota and Bobcat have superseded several cylinder head numbers over production generations. The numbers 7000463, 7247479, 7000464, and 7247480 serve as cross-reference only for identification. Share your old number and engine serial so we can confirm whether 7247453 is the correct replacement or a different variant is needed.

Q: Why does the same base number appear with several gasket kit variants? A: Different D902 production runs and Bobcat model variants may require different gasket thicknesses or sealing configurations. A rebuild history on your engine could also mean an oversize or non-standard gasket is now required. We verify your specific build to supply the matched kit.

Q: I only have the machine model, no readable part number — can you identify the right cylinder head? A: Yes. Send the machine model and, if possible, a photograph of the engine block or valve cover area. Our technical team uses model-specific reference data to narrow down the correct cylinder head variant and gasket set for your Bobcat MT55 or MT85.

Q: Can I order a sample to verify fitment before placing a larger order? A: Sample supply is available. We ship one cylinder head with its matched gasket kit so your workshop can perform a physical fitment check on the actual engine. Once confirmed, we proceed with the bulk order under the same specifications and warranty terms.