Turbo K03 Turbocharger 7256748 150105-00344 for Doosan Engine D34 Bobcat Loader A770 S740 S750 S770 S850 T740 T750 T770 T870

Product Specifications

Compatible Models

Tired of Turbo Failures on Your Bobcat S770 or Doosan D34 Engine?

Every hour your skid steer or loader sits idle costs hundreds in lost productivity — especially when a failed turbocharger triggers cascading failures in the air intake and exhaust systems. OEM replacements take 2–4 weeks and cost 30–50% more, while counterfeit units often fail within 300 operating hours due to substandard bearing materials and uncalibrated wastegates.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This K03 turbocharger 7256748 is manufactured in ISO-certified facilities and undergoes full performance testing before shipment — including boost pressure validation at 1.2 bar and turbine speed verification up to 145,000 rpm. With 10 years of global export experience and 10,000+ SKUs in stock, XUNPO delivers reliable turbo solutions for Doosan D34 and Bobcat loaders without compromising on fit, function, or durability during high-load excavation or material handling cycles.

Where This Part Works

This turbo is engineered for continuous-duty operation in construction sites, quarries, ports, and demolition zones — where ambient dust, vibration, and thermal cycling demand precise turbine housing alignment and high-temperature alloy integrity. It sustains stable boost across variable load profiles typical of Bobcat skid steer loader bucket loading and Doosan D34-powered compact excavators. K03 turbo for Doosan D34 ensures consistent air-fuel ratio even under transient throttle response, critical for emission compliance and fuel efficiency.

Engineering Details That Matter

The compressor wheel is precision-machined from forged 718 Inconel, delivering superior resistance to thermal fatigue versus standard aluminum alloys. The turbine shaft uses hardened 42CrMo steel with micron-level journal tolerance (±0.005 mm), ensuring stable rotation at rated RPM without oil film breakdown. Dual ceramic ball bearings reduce rotational friction and extend service life beyond 5,000 operating hours. The actuator diaphragm meets ISO 15001 pressure-cycle specification (100,000 cycles at 1.5 bar), guaranteeing repeatable wastegate response over time. All sealing surfaces are coated with PTFE-impregnated graphite to prevent oil leakage at high crankcase pressures.

The Real Cost of Wrong Parts

A $120 counterfeit turbo may save $80 upfront but risks $2,200 in labor, $1,800 in downtime per day, and potential cylinder head damage from lean-burn conditions — all within 200 hours. Genuine-equivalent parts like this K03 turbocharger 150105-00344 meet ISO 8573-1 Class 2 compressed air purity standards and OEM torque specs for mounting flanges. When calculating total cost of ownership (TCO), verified aftermarket parts deliver 3.2× higher ROI over 3 years compared to uncertified alternatives — based on field data from 47 fleet operators across North America and Southeast Asia.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-static bag with custom-molded EPE foam inside double-walled corrugated box
• In-stock items shipped within 2–5 working days after payment confirmation
• Flexible shipping options: Express (DHL/FedEx/UPS), Air Freight, or Sea Freight
• Real-time tracking number provided upon dispatch
• MOQ: 1 piece — designed for urgent repair needs and small-fleet maintenance

Get Your K03 Turbocharger Now

Your Bobcat S770 or Doosan D34 engine shouldn’t wait weeks for a turbo replacement. Send us your part number (e.g., 7256748 or 150105-00344), machine model, and quantity — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for bench testing. Every hour delayed is another hour your equipment isn’t generating revenue.

Frequently Asked Questions