Restore the legendary "workhorse" performance and reliability of your T4 with this brand-new premium replacement turbocharger. Engineered specifically for the 5-cylinder 2.5 TDI engine, this unit is a precision-manufactured "Plug & Play" solution designed to withstand the heavy-duty cycles of commercial transport, camper conversions, and daily hauling.
This turbocharger is a direct 1:1 replacement for the following models equipped with the 2.5 TDI engine:
| Manufacturer | Model | Engine / Power | Engine Codes |
| Volkswagen | Transporter T4 | 2.5 TDI 65kW / 88PS | AJT, AYY |
| Volkswagen | Transporter T4 | 2.5 TDI 75kW / 102PS | ACV, AUF, AYC |
| Volkswagen | Caravelle / Multivan | 2.5 TDI 65kW / 75kW | AJT, ACV |
Match your original unit with the following manufacturer and OE numbers to ensure a perfect fit:
| Reference Type | Compatible Part Numbers |
| BorgWarner / KKK | 53149887018, 53149707018 |
| Alternative Codes | 5314-988-7018, 5314-970-7018 |
| VAG OE Numbers | 074145701A |
| VAG Suffixes | 074145701AX (Exchange), 074145701AV (Eco/Retail) |
The T4 2.5 TDI is a remarkably durable engine, but the turbocharger requires proper care during installation:
