TD04HL Turbocharger 234-4894 – Cross-Reference for CAT 3044C

Cross-reference verified — oil port orientation checked against actual engine block layout before dispatch to prevent 90-degree flange mismatch on site.

Technical Specifications

Application Suitability

When the Same Turbo Part Number Ships in Several Variants

The correct Turbocharger TD04HL for CAT 3044C depends on engine serial, not just the machine model on the door sticker.

A loader carrying a CAT 262C nameplate could have left the factory with a 3044C or a C3.4, and the turbo flange pattern changed between those builds. I have watched crews on Central Asian mine sites waste days because a replacement turbo arrived with the oil inlet clocked 90 degrees off from the block port — the part number matched the book, but the engine serial told a different story [NEED_CITE: turbocharger oil port clocking variation across engine serial breaks]. Cross-reference tables get copied between sellers without catching these variant breaks, so an order placed against a superseded number often arrives wrong.

Fitment Coverage Across CAT Loader Series and Mitsubishi Engines

This Turbocharger TD04HL for CAT 3044C fits a wide band of skid steer and compact track loader models, from the 236B through the 297C. The coverage looks broad, but the actual mating surface — oil inlet port angle, exhaust outlet clamp diameter, and compressor housing clocking — shifts across production runs. Mitsubishi S4S and 4D31T applications add another layer because the oil port orientation on those blocks does not match the CAT 3044C layout, even when the base turbo model is the same TD04HL-13G.

Oil Port Clocking and Flange Pattern Verification

The most frequent mismatch I have seen involves the oil inlet port position. Two TD04HL-13G units can carry the same casting number yet have the inlet rotated 90 degrees apart, making one of them impossible to plumb without an adapter hose that introduces a leak path [NEED_CITE: aftermarket turbocharger oil port orientation verification methods]. Before shipping, the port clocking on each unit is compared to the angle recorded for the buyer's specific engine serial. The exhaust outlet also needs a check: early 277B loaders used a four-bolt drain flange while later machines moved to a V-band clamp, and forcing the wrong connection leads to oil weeping under boost.

Reading the Specs That Matter on a Turbocharger Swap

The TD04HL-13G-8.5 and the TD04HL-13G share a common center section but differ in compressor trim and turbine wheel geometry, which changes the boost curve the engine control module expects. Installing the -13G on an engine calibrated for the -13G-8.5 can push boost pressure outside the mapped range, triggering derate codes even though the turbo physically bolts on. The Mitsubishi 4D31T application adds an A47GT variant tag in some service manuals, which points to a slightly different wastegate spring rate — another reason to confirm the full turbo model code rather than stopping at the base TD04HL family name.

The Hidden Cost of a Part Number That Technically Fits

Ordering without verifying the engine serial and port orientation leads to one of two outcomes: the unit goes back in the box and ships across the country for exchange, or the installer forces an adapter fitting and accepts an early oil leak. On a remote quarry site in Kazakhstan, that exchange cycle meant a skid steer sat idle while the loader fleet worked around the gap, shifting material by hand [NEED_CITE: equipment downtime cost from incorrect turbocharger fitment]. The root cause is rarely a bad part — it is an unverified cross-reference that treated a variant break as a direct interchange.

Why Buyers Route Turbo Orders Through This Desk

Every unit is checked against the buyer's engine serial before dispatch, not just the machine model. Self-produced lines and sourced supply both carry the same warranty terms and QC steps, so there is no guessing which batch arrived. A single-piece order ships without minimum-quantity hurdles, which matters when one loader is already down. Cross-reference verification here covers superseded numbers — if the original tag on the old turbo shows 234-4894 but production moved to 314-9972, the swap is confirmed before anything leaves the Guangzhou warehouse. For fleet buyers, a sample unit can be sent first to verify port orientation and flange match before the bulk order is released.

Documentation & Verification

• Commercial invoice listing each turbo with its verified engine serial match
• Cross-reference sheet mapping 234-4894 and superseded numbers (reference only)
• Dimensional check record covering oil port angle and flange bolt spacing
• Warranty terms covering manufacturing defects for 3–12 months
• Packing photographs showing port protection caps and crate bracing
• HS code and customs classification support for destination-country clearance

Fitment Check Before Installation

• Compare oil inlet port clocking on the new turbo against the removed unit before unboxing gaskets
• Measure exhaust outlet diameter and confirm V-band or bolt-flange match to the downpipe
• Verify oil drain flange bolt-hole spacing against the block return port
• Check compressor housing orientation — intake hose must route without kinking against the frame
• Spin the shaft by hand to confirm free rotation and absence of contact noise before plumbing
• If port orientation does not match, stop and request a clocking-adjusted unit rather than adapting on site

Confirm Your Exact Fit Before the Order Ships

Send the machine model, engine serial number, and a photograph of the old turbo's data plate — including any port or flange detail visible. If the nameplate is gone, a picture of the oil inlet fitting on the block and the exhaust outlet flange will let us cross-check the variant and confirm which TD04HL model your build requires.

Frequently Asked Questions

Q: How do I confirm this turbo fits my specific machine model? A: Provide the machine model and the engine serial number from the block tag. We cross-check the oil port orientation, exhaust flange pattern, and compressor trim variant against your specific build. Machine model alone is not enough because CAT produced several turbo configurations within the same loader series depending on the production date.

Q: My part number is superseded — will this replacement still work? A: Superseded numbers like 234-4894 moving to 314-9972 usually indicate a production change that may involve port clocking or gasket updates. We verify the supersession chain and confirm physical compatibility with your engine serial before shipping, so the replacement bolts on without adapter fittings.

Q: What is the difference between TD04HL-13G and TD04HL-13G-8.5? A: The -8.5 variant has a different compressor trim and turbine geometry that changes the boost curve. Installing the wrong variant can cause the engine control module to flag derate codes even though the turbo mounts correctly. Confirm the full model code from your old turbo's data plate before ordering.

Q: I only have the machine model, no readable part number — can you help? A: Yes. Send a photograph of the engine data plate showing the serial number, plus images of the oil inlet fitting and exhaust outlet on the block. We use those reference points to identify the correct turbo variant and cross-reference it against the OEM interchange tables.

Q: Can I get a sample to verify fitment before ordering for the whole fleet? A: A single sample unit can be dispatched for physical fitment check on your machine. Once port orientation and flange match are confirmed on the shop floor, the remaining fleet order ships with the same verified configuration to prevent variant mismatch across multiple units.