Skip to product information
SKU:
NLT1V01780
Ships for free in 2–4 business days.
H1C Turbocharger 3522900 3802290 3520030 for Cummins 4BT 3.9L Diesel
$372.99
In Stock
$372.99
Sale price
$372.99
Regular price
New aftermarket H1C turbocharger replacing 3522900, 3802290 and 3520030 on compatible Cummins 4BT 3.9-liter diesel engines.
Estimated delivery between
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.
Compatible equipment / model
- Cummins 4BT 3.9-liter diesel engine applications using H1C turbo 3522900
- Cummins 4BT 3.9-liter diesel engine applications using H1C turbo 3802290
- Cummins 4BT 3.9-liter diesel engine applications using H1C turbo 3520030
Product Overview
Low boost, heavy smoke, oil in the compressor housing, a new whistle, or excess shaft play can put the turbo at the top of the repair list. A turbo often fails because of restricted oil supply, dirty intake air, crankcase pressure, exhaust trouble, or debris, so finding that cause protects the new unit.
This H1C assembly uses exhaust flow to pressurize intake air for compatible 4BT engines. The 4BT appears in many machines and conversions, which makes the old turbo numbers, housing orientation, flange, oil fittings, and compressor connections the dependable way to buy it.
Key Features & Performance
- H1C-style turbocharger for compatible Cummins 4BT engines
- Cross-references 3522900, 3802290, and 3520030
- Restores boost capability after the original unit is confirmed worn
- Complete center and housing assembly ready for application checks
Replaces Part Numbers
- 3522900
- 3802290
- 3520030
Common Uses
- Replacing a turbo with verified shaft or wheel damage
- Correcting low boost traced to the turbocharger
- Repairing oil leakage caused by worn turbo bearings and seals
- Rebuilding a 4BT installation after intake or exhaust damage
Technical Specifications
- Product Type: H1C Turbocharger
- Engine Family: Cummins 4BT
- Engine Displacement: 3.9 L
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Find and correct the original oil, air, exhaust, or foreign-object failure
- Clean the intake tract and replace contaminated oil feed or drain parts as needed
- Prime the center housing with clean engine oil before the first start
- Crank without firing to establish oil pressure, then check all connections for leaks
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Production date, serial number, engine option, dimensions, connections, and previous repairs can change the part used within the same model. Compare the removed item and service information before purchase.
Frequently Asked Questions
Q: Will this turbo cure every low-boost problem? A: No. Charge-air leaks, exhaust restrictions, fuel delivery, timing, compression, and gauges can all produce low boost.
Q: Why did my old turbo pass oil? A: Worn bearings can cause leakage, but a restricted drain, excessive crankcase pressure, or overfilled oil can force oil through a healthy turbo too.
Q: How should fitment be confirmed before ordering? A: Use the compatible list as a starting point, then compare the original reference number, dimensions, connections, mounting details, production date, and equipment or engine serial information.
Q: Is this supplied by the original equipment manufacturer? A: This is a new aftermarket part. The brand and model names identify the applications it is intended to service.
Part Summary
keywords: Cummins 4BT H1C turbo replacement, 3522900 turbocharger, 3802290 turbo fit, 3520030 Cummins turbo, 4BT low boost repair, aftermarket H1C turbo
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.