Turbo RHF3H for Bobcat S160 S185 S205 S550 – Cross-Reference

Verified Variant Fitment — cross-reference 7000677 and 7020831 matched against Kubota V2607-DI engine serial ranges to prevent port misalignment on Bobcat S160 through S590 loaders.

Technical Specifications

Application Suitability

Why Identical Reference Numbers Still Fail on Site

A matching part number does not guarantee the turbocharger bolts on without modification.

I have watched crews in Atacama region quarries spend entire shifts swapping a turbocharger that carried the correct reference number but had an exhaust port rotated slightly off the manifold stud pattern. Cross-reference tables get copied between sellers, and variant-level details — oil feed port clocking, drain flange bolt spacing, wastegate actuator bracket position — get lost in transit. [NEED_CITE: turbocharger variant identification practices in aftermarket distribution] The RHF3H turbocharger for Bobcat skid steer and compact track loaders exists in configurations that share a base designation yet differ in interface geometry across production batches.

Mapping the Fitment Boundary Across S and T Series

The RHF3H turbocharger for Bobcat applications spans the S-series skid steers and T-series compact track loaders, all powered by Kubota V2607-DI or V2607T engines. Within that range, the two cross-reference identifiers — 7000677 and 7020831 (for identification purposes) — cover different production windows. Early-build S160 and T180 units typically align with one reference, while later S550 and T550 machines may require the other. The engine serial number is the deciding factor, not just the loader model badge.

Interface Verification Before the Crate Opens

The critical dimensions to verify are oil feed inlet orientation relative to the compressor housing, exhaust outlet flange bolt circle diameter, and oil drain port position on the turbine housing. A mismatch of even a few degrees in port clocking means rigid oil lines will not seat. [NEED_CITE: turbocharger oil port clocking tolerances for compact diesel engines] For mixed fleets running both Bobcat and standalone Kubota-powered equipment, confirming the exact flange pattern prevents stocking two visually similar but mechanically incompatible turbochargers. Requesting a dimensional photograph of the replacement unit before bulk commitment is standard practice here.

Reading the Spec Sheet Against Real Operating Conditions

The RHF3H designation indicates a compact radial-flow turbine housing sized for the 2.6-liter displacement class. The V2607-DI engine operates with direct injection, meaning turbo spool characteristics must match the fuel delivery timing to avoid lag under load. The turbine wheel and compressor wheel trim within the RHF3H housing are calibrated for the airflow demand of these specific Kubota platforms. Operating at altitude — common in Chilean and Peruvian mining sites — shifts the boost curve, and the wastegate calibration on each reference variant reflects the intended duty envelope. Installing a variant intended for sea-level duty at high elevation leads to overboost or sluggish response.

The Cost of Skipping the Variant Check

When a turbocharger arrives and physically cannot mount, the machine sits idle while a correct replacement is sourced and shipped. The return freight on a mismatched unit, combined with expedited shipping on the correct one, compounds the original loss. Worse is the scenario where the unit bolts on but the oil drain sits at a slight mismatch, creating a weep that carbonizes over weeks and eventually starves the bearing. [NEED_CITE: turbocharger bearing failure modes from restricted oil drain] Early failure then gets blamed on part quality rather than fitment error.

Why Buyers Route Turbo Inquiries Through This Desk

Selected production lines run in our own facility alongside qualified sourced supply, all carrying the same quality inspection and warranty terms. The eight core categories — engine, hydraulic, electrical, undercarriage, cabin, seal kits, tools, and general spares — mean a turbocharger ships alongside the gasket set and oil filter the same job requires. Minimum order starts at one piece, so a single emergency replacement does not require padding an order. Guangzhou warehouse stock covers common fast-failure items for quick dispatch. Identification works from part number, machine model, or a photograph of the worn nameplate. Cross-reference verification includes superseded and alternate numbers, and a sample unit can ship first for physical fitment confirmation before any bulk commitment is made.

Documentation & Verification

• Commercial invoice listing RHF3H turbocharger with machine model reference
• Cross-reference sheet mapping 7000677 and 7020831 to specific serial ranges (reference only)
• Dimensional inspection record covering flange bolt pattern and port orientation
• Warranty terms covering manufacturing defects for 3 to 12 months
• Packing photographs showing protective crating before dispatch
• HS code and export documentation for customs clearance at destination

Fitment Check Before Installation

• Compare oil feed port clocking on new RHF3H unit against removed turbocharger before unbolting lines
• Verify exhaust outlet flange bolt circle matches manifold stud pattern on V2607-DI engine
• Check oil drain flange gasket surface for flatness and confirm bolt holes align with downpipe
• Confirm wastegate actuator bracket clears adjacent engine accessories in Bobcat engine bay
• Spin compressor wheel by hand to check shaft play and confirm no contact with housing

Request a Fitment Verification

Provide the Bobcat machine model and engine serial number, or a photograph of the existing turbocharger nameplate and oil port configuration. The technical team will confirm which reference identifier applies and flag any variant-specific interface differences before the order is released.

Frequently Asked Questions

Q: I only have the machine model, not the turbocharger part number. Can you confirm fitment? A: Yes. Provide the Bobcat model such as S185 or T590 along with the engine serial number if available. We cross-reference against the V2607-DI or V2607T build records to determine whether 7000677 or 7020831 applies, then verify oil port orientation and flange geometry against your production batch.

Q: What is the difference between references 7000677 and 7020831? A: Both map to the RHF3H turbocharger platform but cover different engine serial ranges and production years across Bobcat S and T series loaders. The distinction typically involves oil port clocking and exhaust flange configuration. We confirm which one fits your specific machine before releasing any order.

Q: The old turbocharger nameplate is worn and unreadable. Can a photo help? A: Send a photograph showing the oil feed and drain port positions, the exhaust outlet flange, and any casting marks on the compressor or turbine housing. These physical details allow us to identify the RHF3H variant even without a legible label.

Q: Can I order one sample unit to test fitment before committing to a larger batch? A: Yes. A single RHF3H turbocharger can ship as a sample for physical trial fitment on your Bobcat machine. Once interface compatibility is confirmed, bulk orders proceed against the verified variant with consistent specifications across all units.

Q: Does the same Bobcat model from different production years use different turbochargers? A: It can. Kubota updated the V2607-DI engine across production runs, and interface details such as oil drain flange position and wastegate bracket orientation changed between builds. The machine model alone is not always sufficient; the engine serial number narrows the correct variant.