Volvo Penta MD27, MD29 and MD32 use Peugeot Indenor XDP base engines

MD27, MD29 and MD32 marinize Peugeot Indenor XDP six-cylinder diesels. Internals cross to 113 confirmed Indenor numbers.

The Volvo six that is a Peugeot

The MD27, MD29 and MD32 six-cylinder diesels of the 1980s use marinized Peugeot/Indenor XDP 6/90 base engines. Indenor is the Peugeot industrial-diesel division.

All three share one Indenor XDP six-cylinder parts book. The marinizer catalogue names the base engine in clear words: "Basismotor: Volvo Penta MD27, MD29, MD32 … Peugeot Indenor X6M88AL/X6M90AL, DTP 92/106."

These engines never entered the modern Volvo parts system. Genuine Volvo spares stay scarce and expensive. Indenor/Peugeot internal parts still sell through classic-Peugeot and industrial-diesel channels. Those parts cost less.

The related four-cylinder MD21A uses the Indenor XDP 4/90 base engine. That diesel family matches the Peugeot 504. Ford Lehman 4D61 and Vetus P4.21 share that base engine.

113 confirmed Volvo to Indenor part cross-references

I've listed 113 confirmed part-number pairs from the Indenor XDP six-cylinder cross-reference catalogue. Each pair maps a Volvo Penta number to an Indenor number. Examples:

On any MD27, MD29 or MD32 part page, the Indenor equivalent appears as a cross-reference. The engine Industrial / tractor part equivalents view lists the base-engine parts. Example: the MD29 savings view.

How to buy the cheaper part

1. Find the Volvo Penta part number on your MD27, MD29 or MD32.
2. Look up the Indenor equivalent here, or on the part page.
3. If a genuine Volvo box is scarce, buy the Indenor or Peugeot number.
4. Use classic-Peugeot 504/505 diesel suppliers and industrial-diesel suppliers.

I copied the pairs from a manufacturer-specialist catalogue and grade them confirmed. Part numbers supersede. A few source entries carried typos. I copied those typos as they stand. Always verify against a supplier before you order. See Methodology.

Marine hardware you still buy as Volvo

The Volvo marinizing kit stays Volvo or the pump maker. That kit includes the heat exchanger, raw-water pump, gearbox, wet exhaust, and many senders.

The 113 edges are internal Indenor/Peugeot numbers from the XDP six-cylinder book. MD21A uses the four-cylinder XDP 4/90 (Peugeot 504 family). Ford Lehman 4D61 and Vetus P4.21 share that base engine. MD21A uses the four-cylinder book.

How to confirm you have this six

1. Read the marinizer catalogue name: Peugeot Indenor X6M88AL/X6M90AL, DTP 92/106.
2. If your engine is an MD22, use Perkins Prima.

1. If your engine is MD2010-2040, use Perkins 100-series / Shibaura.
2. Use Volvo families: own-design vs marinized before you shop Peugeot 505 diesel breakers for a 2003.

FAQ

Why are Volvo numbers scarce? These sixes never entered the modern Volvo parts system. That gap is why the Indenor number is the useful one.

Are the 113 edges a complete engine? They are the confirmed pairs I transcribed. If I haven't got a row, I haven't sourced it.

These numbers come from public and third-party sources. They can be wrong. Check against an official source before you order. Methodology · All guides.