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John Deere RE554959 is the BorgWarner S1B type wastegated turbocharger with the actuator, heat shield and boost hose fitted, a single entry four bolt exhaust inlet flange and an aluminium compressor housing. It is used on John Deere 4024 and 4045 engines (325, 328, 332). This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Turbocharger |
| Replaces | John Deere RE554959 |
| Turbo model | S1B |
| Engine | John Deere 4024, 4045, 5030H |
| Machine | John Deere 325, 328, 332 |
| Turbine inlet | Single entry, four bolt flange |
| Wastegate | Yes, actuator fitted |
| Fits | the John Deere 4024 and 4045 diesel engines, including the 5030H engine in 325, 328 and 332 skid steer loaders |
| Condition | New, aftermarket |
| Stat. HS-Code | 841480 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| John Deere Part No.(SPM Part No.) | Fits |
|---|---|
| RE554959(SPM-HEP-4767) | the John Deere 4024 and 4045 diesel engines, including the 5030H engine in 325, 328 and 332 skid steer loaders |
What it does
Exhaust gas spins the turbine, which drives the compressor wheel on the same shaft and pushes more air into the engine. More air lets the engine burn more fuel cleanly, giving the rated power.
Where it is used
Made for the John Deere 4024, 4045 diesel engines, including the 5030H engine in 325, 328 and 1 more. The full list is in the tables above.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| SINOCMP | USD 419.00 | 1 Nov 2026 |
| MyMROmarts | USD 463.82 | 3 Nov 2026 |
| eBay, aftermarket seller | USD 470.01 | 1 Nov 2026 |
| FridayParts | USD 493.52 | 1 Nov 2026 |
| WDPart | USD 615.00 | 3 Nov 2026 |
| Diselmart | USD 618.00 | 3 Nov 2026 |
| Spare Part Mart | USD 352.38 | Today |
Our price of USD 352.38 is 16% to 43% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the John Deere 4024, and 4 more listed under compatible equipment. Check the old turbocharger is marked RE554959 or one of the cross references, because makers change parts between serial ranges.
On the John Deere 4024, often as long as the engine, 8,000 hours or more, when the oil and air filters are kept on schedule. Most turbos fail early from oil or dirt problems, not age.
Blue or black smoke, a whistle or siren noise, loss of power, oil in the intake or exhaust, or the shaft rubbing the housing.
Most failures come from oil starvation, dirty oil, or something passing through the wheels. Find the cause first: a blocked oil feed or dirty air path will kill the new turbocharger too.
A little radial play is normal on journal bearing turbos. Wheels touching the housing, or any noticeable end float, are not.
No. It is an aftermarket turbocharger made to replace the John Deere RE554959. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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