Oil Pump Hub, B1 Brake (Type1) Mercedes-Benz 722.9 R2202724224, A2202724224 - Overall Height 245mm (Stator Height (Front) 95mm), 3x3 Single-Way Friction Discs

Oil pump hub 722.9 04-up (3 friction discs, for drum K1 without bearing) is changed in the following cases

• wear inside the stator from the input shaft
• destruction of the needle bearing coupled with the drum K1

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• Overall height - 245 mm;

Front side:

• Stator height - 95 mm;
• Number of splines - 38 pcs.;
• The outer diameter of the splined part is 31.75 mm;

The outer diameter of the aluminum body is 217.95 mm;


Back side:

• Stator height (from aluminum housing) - 142 mm;
• Outer diameter - 42 mm;
• Number of Teflon rings - 2 pcs.;
• Outer diameter over Teflon rings - 65.55 mm;

B1 Brake Steel and Friction Disc Set:

• Height from piston to retaining ring - 24 mm;
• Total thickness of the disc set (without spring disc) - 16.40 mm;

Support disk:

• Thickness - 3.95 mm;
• Inner diameter - 169.75 mm;
• Number of teeth - 18 pcs.;
• Number of discs in the set - 1 pc.;

Friction disc (single-sided with internal teeth):

• Thickness - 2.10 mm;
• Outer diameter - 190.50 mm;
• Number of teeth - 36 pcs.;
• Number of discs in the set - 3 pcs.;

Friction disc (single-sided with external teeth):

• Thickness - 2.05 mm;
• Inner diameter - 170.15 mm;
• Number of teeth - 18 pcs.;
• Number of discs in the set - 3 pcs.;

Spring disc:

• Thickness - 1.92 mm;
• Inner diameter - 170.05 mm;
• Number of teeth - 18 pcs.;
• Number of discs in the set - 1 pc.;