In Stock HX55 Turbocharger 3590044 Compatible with Cummins M11 ISM
HX55 Turbocharger 3590044, Replacement for Cummins M11 ISM — compatible with ISME,...
Spot Stock Dispatch — Turbocharger K03 7256748 held in Guangzhou warehouse with single-piece minimum and same-week freight options quoted at inquiry.
| Parameter | Value |
|---|---|
| Part Number | 7256748 |
| Product Type | Turbocharger |
| Cross-Reference (reference only) | 7256748REM, 150105-00344, 150105-00344C, 150105-00344E, 150105-00344G, 5303-970-0458, 5303-970-0512, 5303-970-0659, 5303-988-0458, 5303-988-0512, 5303-988-0659 |
| Turbo Model | K03 |
| Compatible Engine | Doosan D34 (74-100 HP) |
| Machine Fitment | A770, S740, S750, S770, S850, T740, T750, T770, T870 |
| Brand Compatibility | Compatible with Bobcat loaders |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| MOQ | 1 piece |
| Manufacturing Standard | ISO-certified facilities |
| Failure Symptom | Replacement Urgency |
|---|---|
| Power loss under load on Bobcat S740 or T770 | Immediate — machine unable to complete digging or lifting cycles |
| Excessive exhaust smoke during engine start-up | High — indicates turbine seal failure requiring prompt swap |
| Whining or grinding noise from turbo housing | Critical — bearing failure risks engine oil contamination |
| Boost pressure drop on Doosan D34 engine | Urgent — affects hydraulic system responsiveness on site |
| Turbo shaft play detected during routine inspection | Scheduled — replace before catastrophic wheel contact occurs |
Turbocharger K03 7256748 in stock fast shipping means the part leaves Guangzhou within days, not weeks.
A Bobcat S750 goes down on a concrete pour and the site supervisor spends two days just confirming the turbocharger part number because the nameplate is painted over. By the time the order ships, the machine has been idle long enough to miss a contract milestone. Turbocharger K03 7256748 in stock fast shipping eliminates that waiting period by holding common fast-failure turbocharger assemblies ready for immediate dispatch. [NEED_CITE: equipment downtime cost impact on small construction contractors]
I have watched a Doosan D34 engine sit silent for days because a single blurred photo led to the wrong turbo variant being sent. That is not a supply problem — it is an identification problem. When the original tag is illegible, we match from machine model or a photograph of the old unit, confirming fitment before the box is sealed.
One warehouse shelf holds multiple K03 turbocharger variants. The difference between them can be as small as a gasket orientation or an oil return flange angle. When a buyer sends a machine model like T870 or a photograph of the failed turbo, our team cross-checks against the Doosan D34 engine serial range and the specific Bobcat loader generation. Turbocharger K03 7256748 in stock fast shipping is only useful if the correct variant is in the box — identification accuracy is the real speed advantage.
Express, air, and sea options are quoted with estimated arrival windows at the inquiry stage, not revealed after payment. A workshop in Southeast Asia needing a single turbocharger for a downed S740 gets a day-by-day arrival estimate alongside the freight cost. Guangzhou proximity to major air cargo hubs keeps transit windows tight for emergency single-piece orders. [NEED_CITE: international air freight transit standards for machinery spare parts]
The K03 turbocharger frame is sized for the Doosan D34 displacement and its 74-100 HP output band. Compressor and turbine wheel trim determine where peak boost arrives in the RPM range — too small a trim and the turbo chokes at high load, too large and response lags during hydraulic cycle transitions. The ISO-certified manufacturing standard ensures dimensional consistency across housings, so mounting bolt patterns and oil feed port positions match the factory interface on Bobcat loaders without adapter modifications.
A turbocharger that bolts on but has the wrong oil drain orientation will leak within hours of start-up. The machine goes back down, the oil contaminates the work area, and the replacement cycle begins again. Waiting for a second shipment while a Bobcat T750 sits idle on a grading job compounds the original downtime with a second round of crew standby costs. Correct identification from a photograph or machine model eliminates this repeat failure loop entirely. [NEED_CITE: consequences of incorrect turbocharger fitment on diesel engine oil systems]
Self-produced lines and sourced supply both carry the same warranty terms, so a single turbocharger order receives consistent QC documentation regardless of which production route it took. Eight equipment parts categories ship under one account, meaning a workshop ordering this turbocharger can add oil filters, gaskets, and seal kits to the same consignment without opening a second supplier relationship. One-piece minimum order means an emergency S770 repair does not require padding an order to meet a volume threshold. Guangzhou warehouse stock covers high-failure-rate turbocharger assemblies for same-week dispatch. Part identification from a worn number, machine model, or nameplate photograph resolves ambiguity before the order is placed. Cross-reference verification covers superseded numbers like the 5303-970 and 150105 series listed above, so buyers holding older references still get accurate matches.
Send the part number you have, the Bobcat machine model, or a photograph of the failed turbocharger and its nameplate. We will confirm current stock status, verify fitment against the Doosan D34 engine variant, and return a freight quote with estimated arrival timing — typically within hours of receiving the inquiry.
Q: Is this turbocharger currently in stock and how fast can it ship? A: Turbocharger K03 7256748 is held in our Guangzhou warehouse for common Bobcat loader applications. In-stock units dispatch within 2-5 working days depending on freight method selected. We confirm exact availability at inquiry so there are no lead-time surprises after payment.
Q: Can I order just one piece for an emergency repair? A: Yes, the minimum order is one piece. A workshop needing a single turbocharger to get a Bobcat S740 or T770 back on site does not need to bundle additional items or meet a volume threshold. Emergency single-unit orders receive the same dispatch priority.
Q: How do I confirm this fits my machine if the nameplate is worn or unreadable? A: Send us the Bobcat machine model, a photograph of the old turbocharger, or any legible portion of the original tag. Our team cross-checks against the Doosan D34 engine variant and confirms fitment before shipping. Response typically arrives within two hours during business time.
Q: What are the shipping options and estimated delivery times? A: Express courier, air freight, and sea freight are all available. Estimated arrival dates are quoted at inquiry based on destination and method chosen, so you know the timeline before committing. Real-time tracking is provided once the shipment leaves Guangzhou.
Q: What happens if the part arrives and doesn't fit or is defective? A: The turbocharger carries a 3-12 month warranty against manufacturing defects with documented terms. If a fitment issue arises despite our pre-shipment verification, contact us with photographs and we will arrange resolution. Fitment confirmation before dispatch minimizes this risk significantly.
Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.
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