Original VAG Group Rear Crankshaft Seal Flange ref. 038103171S

Key Benefits

This sealing flange with rear impulse generator prevents crankshaft oil leaks and ensures correct position sensor readings.
Ideal for repairs on VAG engines where the seal is worn or the sensor is failing.

Features and Materials

Crankcase flange seal, inner diameter 85 mm, rear gear side.
Sealing lip material PTFE (Teflon), plastic housing, includes impulse wheel.
OEM reference 038103171S for 038 series engines.

How to use / Who is it for?

For mechanics and workshops repairing VW/SEAT/Skoda 1.9 TDI (PD and pump) engines.
Requires removal of lower crankcase and crankshaft; special tool for seal.

Why choose it?

Original part prevents recurring leaks and ECU failures due to faulty sensors.
Superior to generic alternatives due to impulse wheel precision and PTFE sealing.

Frequently Asked Questions (FAQ)

Is it for the front or rear crankshaft?
Rear, gear side.

What is the inner diameter?
85 mm.

Does it include a sensor?
No, only the flange with impulse generator (toothed wheel).

What engines is it for?
VW 038 series (1.9 TDI, etc.).

Technical Data 

• Type: Rear crankshaft sealing flange.

• Reference: 038103171S.

• Inner diameter: 85 mm.

• Side: Rear/gears.

• Material: PTFE lip, plastic housing.

• Function: Sealing + impulse generator.

• Compatible: VAG 038 series engines.

OEM VAG part with precise impulse wheel; verify engine compatibility before installing.
Special tool recommended for removal.

Add the 038103171S sealing flange to your cart and solve crankshaft leaks + impulse sensor issues in your VAG engine.