If you’re running a Detroit Diesel Series 60 and your boost is lagging, your EGTs are climbing, or you’ve got oil pooling in the charge pipe, the turbocharger is usually the first suspect. The Series 60 is one of the most durable on-highway diesels ever built, but the factory Garrett units and their BorgWarner S300/S400 replacements all wear out the same way: worn bearings, cracked turbine housings, and failed seals. This guide breaks down what turbo your Series 60 actually uses, how the BorgWarner S300 replacement stacks up, what it costs to fix it right, and the install hardware you need to do the job once.
PT Turbo has been rebuilding and supplying diesel turbochargers since 1978. That’s 45+ years of hands-on work on the exact units bolted to these engines, and we stock both new and remanufactured options so you can match the repair to the truck’s value and your budget.
Series 60 Turbocharger Basics: What’s Actually Bolted On
The Detroit Diesel Series 60 ran in three main displacements across its production life, and the turbo setup changed with displacement, model year, and emissions calibration:
- 11.1L (early 1987-1990s) – The original Series 60, typically fitted with a Garrett fixed-geometry unit.
- 12.7L – The workhorse. The vast majority of these used a fixed-geometry Garrett TV81 / GTA-series turbo, and many were upgraded or replaced with a BorgWarner S400 frame in the field.
- 14.0L (DDEC IV/V) – The big-bore version, often running a larger Garrett or a variable geometry turbo (VGT) on the later EGR-equipped engines.
Here’s where the BorgWarner S300 enters the picture. The S300 frame is a common, proven cartridge size for the 11.1L and lighter-duty 12.7L applications, and it’s a favorite swap for guys who want a reliable, easily serviced journal-bearing turbo without VGT complexity. The S400 frame handles the higher airflow demands of the 12.7L and 14.0L. Knowing which frame your engine is plumbed for matters because the compressor housing inlet, V-band clamps, and oil/coolant fittings differ between them.
Symptoms of a Failing Series 60 Turbocharger
Turbos rarely fail without warning. Catch it early and you save the engine from the secondary damage a grenaded turbo can cause. Here’s how the symptoms typically progress on a Series 60:
| Severity | Symptom | Likely Cause |
|---|---|---|
| Early | Slight boost lag, blue/gray smoke on startup, faint whistle | Worn seals, early bearing wear |
| Moderate | Oil in charge pipe/intercooler, rising EGTs, low boost codes | Failed compressor-side seal, shaft play |
| Severe | Loud grinding/siren noise, heavy oil consumption, no boost, metal in intake | Bearing failure, wheel-to-housing contact |
| Critical | Wheel comes apart, debris ingested, power loss + smoke | Catastrophic shaft/wheel failure |
The two failure modes we see most on Series 60 turbos: oil seal failure (from blocked drains, extended idle, or coked oil) and bearing wear from contaminated oil and missed service intervals. Check the shaft play first. Grab the compressor wheel, wiggle it. Excessive axial or radial play means the bearings are gone. Any wheel-to-housing contact marks tell you the unit is finished.
If you’re chasing the same kind of boost-loss diagnosis on other platforms, our Caterpillar C15 turbocharger guide covers a similar fixed-geometry failure pattern that’s worth a read for fleet techs running mixed equipment.
BorgWarner S300 vs OEM Garrett: Which Replacement Makes Sense
When it’s time to replace, you’ve got three realistic paths: a new BorgWarner S300/S400, a quality remanufactured unit, or rebuilding the turbo you already have. Each has its place.
| Option | Typical Cost | Best For | Notes |
|---|---|---|---|
| New BorgWarner S300/S400 | $1,100 – $2,200 | High-mileage trucks staying in service, fleet uptime | Full warranty, latest bearing/seal updates |
| Remanufactured turbo | $600 – $1,300 | Best value for most owner-operators | New CHRA components, tested to spec |
| Rebuild your core | $400 – $850 | Original housing in good shape, no cracks | Keeps your exact fitment, fast turnaround |
The BorgWarner S300 is popular for a reason. It’s a journal-bearing turbo with a huge global parts supply, the wheels are well-mapped, and it’s forgiving in service. For a 12.7L making stock-to-mild power, the S300 frame delivers strong spool and reliable boost. Step up to the S400 frame if your engine is calibrated for higher airflow or you’re pushing power above stock.
For most working trucks, a remanufactured turbocharger is the sweet spot. A proper reman gets a new center cartridge, balanced to OEM tolerances and flow-tested, at roughly half the cost of new. If your turbine and compressor housings are crack-free, our turbocharger rebuild service lets you keep your exact unit and get it back to spec, usually with the fastest turnaround.
Installation Hardware: Don’t Skip the Gaskets and Fittings
The single biggest cause of repeat turbo failure isn’t the turbo, it’s a bad install. Reusing old gaskets, a clogged oil drain, or a kinked feed line will kill a brand-new unit in short order. Always replace the mounting gaskets, oil feed and drain seals, and inspect the oil supply line for coking before you bolt anything up.
PT Turbo stocks the correct D&W Detroit Diesel installation kits for these engines:
- D&W Detroit Diesel Installation Kit 172-784-0439 – the complete gasket and hardware set for a clean R&R, available from PT Turbo for $162.00. View the 172-784-0439 kit here.
- D&W Detroit Diesel Installation Kit 172-784-0438 – the alternate fitment kit for Series 60 applications, available for $133.92. View the 172-784-0438 kit here.
Confirm which kit matches your turbo frame and exhaust manifold flange before ordering. If you’re not sure, send us your engine serial and turbo part number and we’ll match it. A $130-$160 kit is cheap insurance against a $1,000+ comeback.
Install Best Practices for Series 60 Turbos
- Prime the bearings. Pre-fill the oil feed port and spin the shaft by hand before first start to avoid a dry-start bearing scuff.
- Verify oil drain flow. The drain must be unobstructed and pitched downward. Restricted drains pressurize the center housing and blow seals fast.
- Inspect the charge air cooler. If the old turbo dumped oil, flush the intercooler and piping or you’ll re-ingest debris.
- Torque the V-band and flange bolts to spec. Under-torqued clamps leak boost; over-torqued ones crack housings.
- Idle-down discipline. Let the engine idle 2-3 minutes before shutdown to cool the bearing housing and prevent oil coking.
What a Series 60 Turbo Replacement Really Costs
Total job cost comes down to which turbo path you choose plus labor and the install kit. Here’s a realistic breakdown for a 12.7L:
| Line Item | DIY / Owner-Operator | Shop Estimate |
|---|---|---|
| Turbocharger (reman) | $600 – $1,300 | $700 – $1,400 |
| Installation kit | $133 – $162 | $133 – $162 |
| Labor (3-5 hrs) | Your time | $450 – $750 |
| Total | $750 – $1,460 | $1,280 – $2,310 |
The Series 60 is a relatively accessible install compared to a modern emissions truck, which keeps labor reasonable. Most experienced techs have one out in under four hours. Sourcing the right turbo and a complete install kit up front is what separates a clean one-time fix from a frustrating comeback.
Running a mixed fleet? It’s worth understanding how newer platforms differ. Our
Cross-Reference & Superseded Part Numbers
The turbochargers covered in this article match or supersede the following OEM and manufacturer part numbers. If you are searching by part number, these are the units stocked by PT Turbo for this application:
13879880047 • 13879880050 • 167735 • 167736 • 169011 • 169012 • 171701 • 171702 • 172-784-0438 • 172-784-0439 • 172743 • 3786233H • 3786233HX • 3786234H • 3786234HX • 3786235H • 3786235HX • 4034194H • 4047597-RMN • 407370-5009S • 408742-5001S • 408774-9002S • 409750-5003S • 442032-5001S • 442032-5030S • 442032-9002S • 451491-5016S • 451686-5024S • 465030-9007S • 465242-5001S • 465242-5002S • 465242-9002S • 465717-9001S • 465745-5001S • 465745-9001S • 465945-5002S • 465945-9002S • 465987-9001S • 466176-5001S • 466713-5001S • 466713-5005S • 466999-5001S • 479514-RMN • 53047109901-BILLET • 53047109904-BILLET • 53369886735 • 53369887106 • 53369887111 • 53379887101 • 53379887102 • 53429886901 • 5358044H • 57849882000 • 57849882001 • 57849882004 • 57849882005 • 57889882400 • 57909882500 • 6378262H • 704122-9002S • 707728-5004S • 707866-5008S • 707866-9001S • 712371-5165S • 712402-5006S • 714322-9005S • 714788-5001S • 714788-5002S • 714788-5003S • 714788-5005S • 714788-5009S • 714789-5001S • 714789-5007S • 714792-5002S • 714794-5002S • 750216-5023S • 750216-9024S • 758160-5006S • 758160-5007S • 758160-5008S • 758160-9006S • 758160-9007S • 758204-5006S • 758204-5007S • 758204-5008S • 758204-5010S • 758204-9006S • 758204-9007S • 761302-5001S • 761302-5002S • 761303-5004S • 774451-5003S • 799640-5001S • 887393-5005S • A4720901480-RMN • EA4710962199 • NEW-FTR-TWN-TRB • RA4710907180 • RA4710907280 • RA4720901480 • RA4720902880 • RMN-BRG-V2S-TWN • RMN-BRG-V2S-TWN-GR-TO • RMN-BRG-V2S-TWN-NO
Can’t find your number above? Contact PT Turbo — our team has been matching part numbers since 1978.
Further reading: Learn more about BorgWarner.
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PT Turbo has rebuilt and sold turbochargers since 1978. We stock remanufactured units for Cummins, Duramax, Power Stroke, Detroit Diesel, and more — backed by a 12-month unlimited mileage warranty and same-week shipping from San Bernardino, CA.
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