B3G 13879880047 Turbocharger for Detroit DD13 Freightliner Cascadia 12.8L

DD13

The B3G (13879880047) is a BorgWarner turbocharger for the Detroit DD13 12.8L engine, used in the Freightliner Cascadia and Mercedes-Benz bus applications. The DD13 is one of the most popular Class 8 engines on the road today, powering the majority of Freightliner Cascadia trucks. The B3G is a VGT turbo designed for the DD13’s 12.8L displacement. Mercedes-Benz part numbers (A471 series) also apply since the DD13 is based on Mercedes-Benz OM471 architecture. Built new, dynamically balanced, ships with gaskets. We supply shops, fleets, and distributors.

Turbo Model

B3G (BorgWarner, VGT)

OEM / Interchange Numbers

13879880047, A4710964399, A4710966099, A4710963599, EA4710964099, A4710965999

Application

Detroit DD13 12.8L, Freightliner Cascadia, Mercedes-Benz Bus

Service & Support

  • 1-Year Unlimited-Mileage Warranty
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FAQ

The B3G (13879880047) fits the Detroit DD13 12.8L engine in Freightliner Cascadia trucks and Mercedes-Benz bus applications.

No. The DD15 (14.8L) uses a different B3G configuration with A472 series Mercedes numbers. The DD13 uses A471 series. They are not interchangeable.

Mercedes-Benz numbers include A4710964399, A4710966099, A4710963599, EA4710964099, and A4710965999.

Brand new, 100% new components, dynamically balanced. No core charge. One-year unlimited-mileage warranty.

Yes. US stock, volume pricing for shops, fleets, and distributors.

B3G for Detroit DD13: The Freightliner Cascadia Turbo

The Detroit DD13 replaced the Series 60 as the go-to engine for Freightliner Cascadia trucks. It is a 12.8L inline-six based on Mercedes-Benz OM471 architecture. The B3G turbocharger is the VGT unit for this engine, manufactured by BorgWarner. There are multiple B3G configurations for the DD13 — this page covers BorgWarner number 13879880047.

DD13 vs DD15 — different engines, different turbos

Detroit makes both the DD13 (12.8L) and the DD15 (14.8L) for Class 8 trucks. They use different B3G turbo configurations with different part numbers. The DD15 turbo uses A472 series Mercedes numbers, while the DD13 uses A471 series. Do not cross-reference between them.

Multiple DD13 B3G configurations

The DD13 has had several turbo revisions across model years. This page covers BorgWarner 13879880047. We also carry 13879880050, which is a different DD13 configuration. Match by the BorgWarner number or Mercedes A-number stamped on your old turbo.

Installation

  • Direct bolt-on replacement for the DD13 B3G turbo.
  • Replace exhaust manifold and oil drain gaskets (included).
  • Flush oil feed line. Prime turbo before startup.
  • Verify VGT operation and boost through the engine ECM after install.

See our quality process for details.