BOSCH Brake Servo 180mm
MM22267/1
Product details
VALVE No. 048 300 4701 Main Seal KNORR BREMSE Part No. 1488705044 (not included) Mercedes Big Piston NOT included
Brake servo repair kits and components.
6 product lines · ManuMark 2026 catalogue
Fitting notice: Air brake components must be fitted by a qualified technician and matched to your vehicle’s exact part number.
6 products

VALVE No. 048 300 4701 Main Seal KNORR BREMSE Part No. 1488705044 (not included) Mercedes Big Piston NOT included

VALVE No. GA 29149 Main Seal NOT included See MM22432/1

KIT No. 710175/1 Seal & Felt Strip ONLY Felt Strip Included For full kit see MM22432

VALVE No. 710 621 710 655 Alternate Part No: WABCO : GA 29148 Main Seal NOT included See MM22433/1

KIT No. 710176/2 Seal & Felt Strip ONLY Felt Strip Included For full kit see MM22433

VALVE No. 0483 003 014/7/8/9 Alternate Part No: 1 487 010 194 Only Air Side Seal NOT included
Brake servos and air packs boost driver pedal effort, using air or vacuum to apply hydraulic brakes on light and medium trucks and buses.
A hard pedal, hissing under braking or fluid loss into the servo point to worn diaphragms, seals or valve parts.
Repair kits restore servo diaphragms, piston seals and control valve rubbers so the unit returns to full assistance. All 6 brake servos lines are manufactured by Pitchline Engineering in an ISO 9001 environment in Pinetown and supplied from our Pinetown branch across South Africa.
Typically the diaphragm, piston seals, O-rings and control valve rubbers for the specific servo or air pack.
Often a leaking diaphragm or worn seal inside the air pack reducing assistance; a repair kit addresses this.
Yes. The components are manufactured by Pitchline Engineering in Pinetown.