Hitachi EX120-2 EX120-3 EX120-5 Turbocharger 49189-00540

49189-00540 Turbocharger for Hitachi EX120 Isuzu Engine

The 49189-00540 turbocharger is supplied for Hitachi EX120 series excavator repair with Isuzu 4BD1 and 4BG1T diesel engine applications. It is used to restore boost pressure, air intake performance and engine combustion stability when the original turbocharger is worn, leaking oil, damaged or no longer providing normal boost response.

This page should focus on the 49189-00540 turbocharger application for Hitachi EX120-2, EX120-3 and EX120-5 related models. The old product page used a wholesale-style title and kept a full VLS turbocharger catalog list, which should be removed to keep the 49189-00540, TD04HL, Hitachi EX120 and Isuzu engine signals clear.

Part Number and Engine Application

The main part number for this page is 49189-00540. The numbers 8971159720, 8971159721 and 89711-59720 can be used as matching references for this TD04HL turbocharger application. Because EX120 series machines may appear with different Isuzu engine references, the old turbocharger nameplate and engine model should be checked before shipment.

Part Number: 49189-00540

Ref Cross: 8971159720 / 8971159721 / 89711-59720

Turbo Model: TD04HL / TD04HL-15G series turbocharger

Engine Model: Isuzu 4BD1 / 4BG1T

Machine Application: Hitachi EX120-2, EX120-3, EX120-5 and related EX120 series excavator applications

Product Type: Engine Turbocharger

Application Notes for Hitachi EX120 Series

This turbocharger should be checked for Hitachi EX120 series excavator applications. Older EX120-2 and EX120-3 inquiries may be described with Isuzu 4BD1 engine information, while EX120-5 related inquiries are often checked with Isuzu 4BG1T engine information. For accurate matching, the turbocharger tag and removed sample should be confirmed before quotation.

Main Search Signal: 49189-00540 turbocharger

Matching Number: 8971159720 / 8971159721 / 89711-59720

Turbo Signal: TD04HL / TD04HL-15G

Engine Signal: Isuzu 4BD1 / 4BG1T

Machine Signal: Hitachi EX120-2 / EX120-3 / EX120-5 excavator applications

Confirmation Method: Turbo nameplate, old part number, engine model and removed turbo photos

Why the Old Page Needed Correction

The old page title used “Wholesale Excavator Turbocharger” and the product description contained a full VLS turbocharger list. That structure mixes many unrelated part numbers and machine models into one page, which weakens the product signal for both search engines and buyers.

After refurbishment, this page should only focus on 49189-00540, TD04HL, Hitachi EX120 series and Isuzu 4BD1 / 4BG1T engine applications. Other turbocharger numbers from the old list should be removed and handled on their own product pages.

Old Signal to Remove: Wholesale Excavator Turbocharger

Old Internal Row to Remove: VLS-D3013 EX120-2/3/5 4BD1 49189-00540

New Main Part Signal: 49189-00540

New Application Signal: Hitachi EX120 series with Isuzu 4BD1 / 4BG1T engine

Key Checking Points Before Order

Turbochargers should not be confirmed only by excavator model. The same EX120 series may have different engine versions, turbocharger specifications or replacement history, so the old turbocharger plate number and engine model should be checked before quotation.

Part Number Check: Confirm 49189-00540 from the old turbocharger tag, supplier record or removed sample.

Cross Number Check: If the buyer provides 8971159720, 8971159721 or 89711-59720, confirm it together with engine model and turbo photos.

Engine Check: Confirm whether the engine is Isuzu 4BD1, 4BD1T, 4BG1 or 4BG1T according to the actual engine plate.

Machine Check: Confirm Hitachi EX120-2, EX120-3, EX120-5 or related EX120 series application if the turbo is ordered by machine model.

Sample Check: Provide photos of the old turbocharger from the compressor side, turbine side, actuator side and nameplate side.

Turbocharger Replacement Notes

Before replacing the 49189-00540 turbocharger, the engine air intake system, exhaust manifold, oil feed line, oil return line and air filter condition should be checked. Turbocharger failure can be caused by oil starvation, dirty oil, air restriction, exhaust leakage or foreign object damage.

After installation, the lubrication system should be primed before engine start. The oil line should be clean, the intake pipe should be free from debris, and the engine should be checked for abnormal smoke, oil leakage, boost pressure loss or unusual turbo noise during testing.

Recommended Information for Quotation

Part Number: 49189-00540

Matching Number: 8971159720 / 8971159721 / 89711-59720 if available

Turbo Model: TD04HL / TD04HL-15G if shown on the old turbo tag

Engine Model: Isuzu 4BD1 / 4BG1T or actual engine plate model

Machine Model: Hitachi EX120-2 / EX120-3 / EX120-5 or related EX120 series model

Old Sample: Turbocharger photos from multiple angles

Nameplate: Clear photo of the turbocharger tag or stamped number

Order Details: Required quantity and destination country

FAQ

Is 49189-00540 used for Hitachi EX120 excavator?

Yes. This page is focused on 49189-00540 turbocharger replacement for Hitachi EX120 series excavator applications. The exact engine and turbo tag should be confirmed before ordering.

Can 8971159720 and 8971159721 be used as matching numbers?

Yes. 8971159720 and 8971159721 can be used as matching references for this turbocharger page. Final confirmation should still be based on old turbo photos, nameplate and engine model.

Is this turbocharger for Isuzu 4BD1 or 4BG1T engine?

This part is commonly checked with Isuzu 4BD1 and 4BG1T related EX120 applications. The actual engine plate and turbocharger tag should be used for final confirmation.

Should the old VLS turbocharger table stay on this page?

No. The old VLS table mixes unrelated turbocharger models and should be removed. This page should focus only on 49189-00540 and its confirmed EX120 / Isuzu application.

What should I provide before ordering?

Please provide the old turbocharger part number, turbo nameplate photo, engine model, machine model and clear photos of the removed turbocharger.