Skip to product information
Turbo S1B032 Turbocharger RE518228 RE71550 for John Deere 4024T Engine 4120 4320

Turbo S1B032 Turbocharger RE518228 RE71550 for John Deere 4024T Engine 4120 4320

Write A Review
Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$483.99
Sale price  $483.99 Regular price 

Available to Order

Usually ships in 2–4 business days.
Designed for select John Deere 4120 and 4320 compact utility tractors, this aftermarket S1B032 turbocharger helps restore boost pressure and engine response.
Shop at Northline Parts Best Customer Service Best Online Parts

Not sure which part fits your equipment?

Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7

Call us

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

Product Overview

The turbocharger uses exhaust energy to supply pressurized air to the engine. Oil leakage, shaft play, unusual noise, smoke, or reduced boost can indicate a worn unit once intake, exhaust, lubrication, and engine conditions have been checked.

Replacement references include RE518228, RE71550. Compare the turbo model, part number, flange pattern, oil and coolant ports, compressor outlet, and actuator configuration before ordering.

Key Features & Performance

  • Replaces a worn, leaking, or damaged turbo assembly
  • Designed for compatible diesel-engine applications
  • Helps recover performance lost to turbo failure
  • Restores exhaust-driven boost pressure

Fitment & Compatibility

Compatible with John Deere 4120 and 4320 compact utility tractors with compatible 4024T engines. Serial-number breaks, production changes, or equipment options may affect the required part.

Technical Specifications

  • Product Type: Turbocharger
  • Compatible Brand: John Deere
  • Part Number(s): RE518228, RE71550
  • Turbo Model: S1B032

Frequently Asked Questions

Q: What should be checked before installing a replacement turbocharger? A: Inspect the oil feed and drain, intake piping, exhaust restriction, charge-air system, crankcase pressure, and engine condition so the new turbo is not damaged.

Q: Is this an original OEM part? A: No. It is an aftermarket component made to replace the listed part in compatible equipment.

Confirm the original part number and physical configuration before ordering, especially when multiple versions were used.

Customers also purchased

Keywords (Used as search references only) View IP policy.