Turbo TD03 Turbocharger 1J403-17013 | Direct Fit for Kubota V2003T

Cross-Reference Verified — Twenty OEM reference numbers mapped against TD03 sub-models to eliminate flange mismatch on Kubota V2003T and V2403 engine variants.

Technical Specifications

Application Suitability

Why the Same Turbo Part Number Ships in Multiple Variants

The TD03 designation covers at least three distinct sub-models, and only one fits your specific engine build.

Kubota turbocharger part numbers have been revised and split across production years. A base number like 1J403-17013 may appear in older manuals while the current superseding reference is 49131-02090. Between those revisions, the compressor trim, turbine housing flange, and oil port clocking can shift. I have seen machines sit idle on mining sites in Nigeria because the replacement Turbocharger TD03 for Kubota V2003T arrived with an exhaust flange rotated far enough from the manifold that the bolts simply would not align [NEED_CITE: turbocharger flange orientation and variant identification in aftermarket diesel service]. The cross-reference table you find online often collapses all of these into one row, hiding the physical differences that matter at installation time.

Serial Range and Sub-Model Mapping

The correct Turbocharger TD03 for Kubota V2003T applications depends on engine serial number and production batch. Kubota V2003T, V2003-T, V2403-M-T, and V2403-M-T-E3B-KEA-2 engines each sit within specific serial ranges that dictate which TD03 sub-model — 07G-6.0, 07G-3.3, or 07T-4.0 — was fitted at the factory. Requesting the engine plate photograph allows us to trace the exact build specification rather than relying on a general machine-model lookup that may cover several turbo variants.

Physical Interface Verification Points

Mounting bolt pattern alone does not guarantee fitment. Oil feed and return port positions shift between TD03 variants, and a mismatch here forces field modification of oil lines — a compromise that shortens turbocharger bearing life [NEED_CITE: turbocharger oil feed pressure and bearing lubrication requirements in industrial diesel engines]. Exhaust inlet flange shape, compressor housing outlet diameter, and wastegate actuator bracket orientation are additional checkpoints we verify against your existing unit. When a worn nameplate or painted-over data plate leaves only the machine model as a starting point, we recommend a single sample unit for trial fitment before committing to fleet-quantity orders.

Reading the Specification Sheet Correctly

The exhaust temperature rating of up to 850°C reflects the turbine housing material capability under sustained load, relevant when the engine operates at high altitude or under continuous heavy-cycle duty such as excavation or generator prime-mover service. The three TD03 sub-models differ in compressor and turbine trim, which governs the boost curve: a smaller trim spools faster for transient response on excavator swing-and-dig cycles, while a larger trim sustains boost at rated RPM for generator or tractor PTO work. Selecting the correct trim ensures the engine receives appropriate air mass flow across its operating range rather than relying on a one-size-fits-all assumption [NEED_CITE: compressor trim selection and boost curve matching for turbocharged diesel engines].

The Hidden Cost of a Close-Enough Fit

Installing a Turbocharger TD03 for Kubota V2003T that physically bolts on but carries the wrong sub-model trim or port orientation creates problems that surface weeks later. Compressor surge, elevated exhaust gas temperatures, and accelerated bearing wear all trace back to a turbo that was catalogued as interchangeable but was never validated against the specific engine build. On remote job sites in Kenya and South Africa, the freight cost and lead time for a corrective replacement dwarf the unit price of the turbocharger itself.

Why Source This Part Through XUNPO

Own production lines and qualified sourced supply operate under a single warranty, so whether this Turbocharger TD03 for Kubota V2003T comes from our facility or a partner plant, QC and warranty terms remain identical. Eight product categories mean the gasket set, oil feed line, and air filter for the same repair can ship in one consignment, eliminating split freight. Minimum order is one piece, supporting emergency single-unit replacements as well as fleet overhaul programs. Our technical team verifies cross-reference numbers including superseded references like 1J403-17010 through 1J403-17016 to confirm which number applies to your engine serial. Sample units ship for fitment confirmation before you commit to bulk quantities, and part identification is supported from part number, machine model, photograph, or nameplate image.

Documentation & Verification

• Commercial invoice and packing list with turbocharger sub-model clearly stated
• Cross-reference sheet mapping your OEM reference number to the applicable TD03 variant (reference only)
• Dimensional check record covering flange bolt pattern and oil port spacing before dispatch
• Warranty terms covering manufacturing defects for 3–12 months
• Packing photographs showing protective crating and port covers in place
• HS code and customs documentation support for international shipment

Fitment Check Before Installation

• Compare mounting bolt pattern on the new TD03 against the removed turbocharger before removing protective covers
• Verify oil feed and return port clocking matches the existing oil line routing on the engine block
• Confirm exhaust inlet flange shape and gasket surface finish match the manifold face
• Check compressor outlet diameter against the existing charge air pipe connection
• If any interface dimension deviates, halt installation and photograph the discrepancy for our technical team review

Identify Your Exact Turbocharger Requirement

Provide the engine model, serial number, or a photograph of the existing turbocharger data plate and mounting flange. If the nameplate is illegible, send the machine model and any visible casting numbers on the turbine or compressor housing so we can narrow the correct TD03 variant and ship a verified match.

Frequently Asked Questions

Q: How do I confirm which TD03 sub-model fits my Kubota engine? A: Each sub-model — 07G-6.0, 07G-3.3, and 07T-4.0 — corresponds to specific engine serial ranges. Provide your engine serial number or a photograph of the engine data plate, and we will cross-reference it against the applicable Kubota build records to identify the exact sub-model required.

Q: My old turbocharger carries part number 1J403-17010 — is that superseded? A: Kubota has revised turbocharger reference numbers across multiple production generations. The number 1J403-17010 is among the earlier references that map to the current 49131-02090 family. We verify whether your specific serial range requires the superseding number or an alternate variant within the same TD03 series.

Q: I only have the machine model, not the engine serial — can you still identify the correct turbo? A: Machine model narrows the field, but several turbocharger variants may apply within one machine platform. We ask for additional details such as production year, engine casting numbers, or photographs of the existing turbocharger flange and port layout to pinpoint the correct unit.

Q: Why are there so many different OEM reference numbers for what looks like the same turbocharger? A: Kubota assigned distinct part numbers as engine specifications evolved across emission tiers and production batches. Each reference number corresponds to a particular engine build variant, and collapsing them into a single interchangeable listing hides flange, port, and trim differences that affect fitment.

Q: Can I order one sample to test fitment before placing a bulk order? A: Yes. We ship single-piece samples for trial installation so you can verify flange alignment, port orientation, and hose clearances on the actual machine before committing to fleet-quantity orders.