TD04HL-15G/12 Turbocharger 49189-00540 for Isuzu 4BG1T – SK120 / SK120-1
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Brand / Family | Compatible Applications |
|---|---|
| Isuzu / excavator application | 4BG1T 4.3L diesel; SK120 and SK120-1 applications |
Product Overview
The turbo restores the exhaust-driven airflow and boost the 4.3L 4BG1T diesel relies on under load. Matching the TD04HL frame, compressor/turbine configuration and oil connections is more important than choosing by machine name alone.
CHRA reference 49189-08100 is associated with this TD04HL family.
Key Features & Performance
- Application-specific turbo frame: Built around the listed turbo/engine family rather than a generic universal charger.
- Restores charge-air function: Designed to replace a failed turbo so the engine can recover normal boost and airflow when the rest of the intake/exhaust system is healthy.
- Installation-focused fitment: Original tag number, flange orientation, oil feed/drain and compressor outlet should all be compared before installation.
- Product-specific note: CHRA reference 49189-08100 is associated with this TD04HL family.
Technical Specifications
- Turbo model: TD04HL-15G/12
- Engine: Isuzu 4BG1T, 4.3L
- Bearing housing: Oil-cooled configuration
Replaces / Reference Part Numbers
49189-00540, 49189-00550, 49189-00511, 8970114741, 8971159720, 5I7585, 5I7952
Common Replacement Reasons
- Confirmed turbo shaft/bearing wear or damaged compressor/turbine wheel
- Oil leakage traced to the turbo after crankcase/oil-drain issues are checked
- Persistent low boost or power loss with intake/exhaust restrictions ruled out
Frequently Asked Questions
How do I confirm this is the correct part?
Compare the tag on the original turbo, oil/drain port orientation and 49189-series number before installation.
Is this an OEM part?
Unless the listing is explicitly identified as genuine/OEM in the product data, treat it as a replacement component. Use the verified reference numbers, equipment application and physical configuration above to match your original part.
What should I check before installation?
Useful when the original unit has shaft play, oil leakage, damaged wheels or persistent low-boost symptoms after intake/exhaust faults are ruled out.
Fitment note: Equipment manufacturers may use different components within the same model family based on engine, serial number or production date. Confirm the original part number and machine/engine details before ordering.