TD04HL Turbocharger 234-4894 – OE Interchange for CAT 3044C C3.4

Verified Cross-References — Each TD04HL turbocharger shipment includes a cross-reference sheet mapping your equipment serial to the correct variant before dispatch.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Multiple Variants

The TD04HL base designation covers distinct turbine and compressor geometries that are not interchangeable on the same engine block.

A single Turbocharger TD04HL for CAT 3044C / cross reference fitment search often returns results that look identical in photographs but differ in oil inlet orientation or exhaust flange clocking. I have handled returns where the part number matched perfectly but the oil return port was rotated ninety degrees from the block interface [NEED_CITE: turbocharger oil drain gravity path requirements]. The TD04HL-13G and TD04HL-13G-8.5 share a core architecture yet carry different compressor trim values, meaning airflow delivery and boost curves diverge under load. Procurement teams copying cross-reference tables between vendors inherit every transcription error along the chain, so a Mitsubishi 49189-02711 listed for one application may actually correspond to a 4D31T A47GT build rather than the S4S you need.

Identifying the Correct Variant from Machine Serial Alone

When the nameplate is painted over or worn beyond legibility, the machine serial number becomes the starting point. The 29 compatible models listed above span several production generations, and engine transitions within a single model family mean that a 246C built early in its run may carry a Mitsubishi S4S while a later unit left the factory with a CAT C3.4. Providing the serial range lets the technical team cross-check the engine build record and isolate whether your unit requires the TD04HL-13G or the TD04HL-13G-8.5 variant. This step eliminates the most common source of on-site fitment failure.

Clocking, Flange Geometry, and Port Alignment

Beyond the model number, physical interface details determine whether the turbocharger bolts on without modification. Oil feed and return ports must align with existing block fittings; even a small angular offset forces hose routing changes that introduce leak paths under vibration [NEED_CITE: turbocharger oil supply line routing standards for compact diesel engines]. Exhaust outlet flanges on these compact loaders vary between three-bolt and four-bolt patterns depending on the exhaust manifold casting. Compressor inlet diameter and hose clamp range must also match the existing intake plumbing. Every interface is checked against reference drawings before the unit ships.

Reading the Specs That Actually Matter

The TD04HL family uses a twin-scroll turbine housing with a wastegate, and the distinction between the -13G and -13G-8.5 suffixes lies in the compressor wheel trim and inducer diameter. A larger inducer moves more air at a given shaft speed but demands correspondingly higher exhaust energy to spool, which affects low-rpm response on machines that spend significant time at partial throttle. The CHRA (center housing and rotating assembly) carries a full-floating bearing design that relies on clean oil at adequate pressure; any upstream filtration issue accelerates bearing wear. Turbine housing material is a nickel-resist cast iron selected for thermal cycling durability in the high-temperature exhaust stream typical of these compact diesel installations.

The Cost of Shipping the Wrong Variant

When a turbocharger arrives with incorrect port clocking, the immediate result is an installation standstill. The machine sits idle while the unit is returned and a replacement is sourced, often on expedited freight at the buyer's expense [NEED_CITE: equipment downtime cost factors for compact construction machinery]. In worse scenarios, a turbocharger that physically bolts on but carries the wrong compressor trim will deliver inadequate boost at working rpm, causing the engine to run rich, overheat under load, and eventually damage piston crowns through excessive exhaust gas temperatures. Catching the variant mismatch before dispatch is far less expensive than diagnosing a secondary engine failure after a forced installation.

Why Verification Starts Here

XUNPO maintains its own production lines for selected part categories and sources the remainder from ISO 9001-certified manufacturing partners, with identical quality control and warranty terms across both streams. A single account covers eight product categories, so turbocharger orders can consolidate with gasket sets, oil filters, and intake hoses into one shipment. Orders start from a single unit, which suits emergency replacements without forcing stock commitments. The technical team verifies fitment from part number, machine model, photograph, or nameplate image and confirms cross-reference accuracy including superseded numbers. A sample unit can be supplied for physical trial fitment before any bulk order is placed, ensuring the TD04HL variant you receive actually matches your machine.

Documentation & Verification

• Commercial invoice and packing list reflecting the exact turbocharger variant and machine fitment note.
• Cross-reference sheet mapping 234-4894 and alternate numbers to your specific engine serial, marked reference only.
• Dimensional inspection record covering flange bolt pattern, port orientation, and inducer diameter.
• Warranty terms covering manufacturing defects for the stated period from dispatch date.
• Packing photographs showing protective crating and port caps before the crate is sealed.
• HS code and export documentation support for destination customs clearance.

Fitment Check Before Installation

• Compare oil feed and return port clocking on the new unit against the removed turbocharger or block fittings.
• Verify exhaust flange bolt count and spacing match the existing manifold before removing protective caps.
• Confirm compressor inlet diameter and hose clamp range fit the current intake plumbing without adapters.
• Rotate the compressor wheel by hand to check for shaft binding or contact with the housing.
• If any interface misaligns, halt installation and contact the technical team with photographs for variant correction.

Confirm Your Fitment Before Ordering

Send the machine model, equipment serial number, or a clear photograph of the existing turbocharger nameplate and oil port orientation. The technical team will return a verified variant match and cross-reference confirmation so the correct Turbocharger TD04HL for CAT 3044C / cross reference fitment arrives ready to install.

Frequently Asked Questions

Q: How do I confirm this turbocharger fits my specific machine? A: Provide your equipment model and serial number, or a photo of the existing turbo nameplate. The technical team cross-checks engine build records and confirms whether your unit requires the TD04HL-13G or TD04HL-13G-8.5 variant, along with port orientation details, typically within two hours.

Q: The old part number is discontinued — can the new cross-reference replace it directly? A: Superseded numbers like 235-4964 or 314-9972 are mapped to current production variants, but direct substitution requires serial-level verification. Engine transitions within the same machine model mean the replacement part number may differ from the original depending on production date.

Q: What is the difference between TD04HL-13G and TD04HL-13G-8.5? A: The suffix indicates compressor wheel trim and inducer diameter differences that affect airflow delivery and boost characteristics. Selecting the wrong variant results in poor low-rpm response or inadequate boost under load. Your engine serial determines which geometry is correct.

Q: The nameplate is unreadable — can I identify the part from the machine model alone? A: Yes, but with a caveat. Since multiple engine variants exist within a single machine model family, the serial number narrows the build configuration. A photo of the oil port layout or exhaust flange can also help confirm the correct variant.

Q: Can I order one sample unit to test fit before placing a bulk order? A: A single-piece sample order is available specifically for fitment confirmation. Once you verify that port orientation, flange pattern, and physical clearances are correct on your machine, bulk quantities can follow under the same verified variant specification.