Description
9121420000X 85MM MACK COMPRESSOR LONG HEAD
PART NUMBER(S):
Fleet Products: 9121420000X (Remanufactured) | Replaces OE: WABCO: 9121120020, 9121120000, 9121120010, 9121120017, 9121140000, 9121420000, 9121420007, 9121420010, 9121420020, 9121510000, 9121510010, 912142002R, 4123520040, 4123520047, 4123520290 | Volvo: 85020160, 22040500, 21220502, 22169886, 20451724, 20451727, 20733972, 20733974, 2135343, 21353433, 21353442, 85155997, 85116641, 85152069, 7421353433, 8235-S9121120010, 20382346, 21353457, 7421353457 | Mack: 24655982, 21353442, 24655465, 21220502 | Renault: 20478166
DESCRIPTION:
Model: SS318 85MM Mack Compressor Long Head
Vehicles: Mack MP7, MP8, MP10, Volvo D11, Volvo D13
• Cylinder bore: 85 mm
• Stroke: 56 mm
• Swept volume: 318 cm³
• Number of cylinders: 1
• Compressor type: Single-cylinder, long head design
• Cooling type: Water cooled with water-cooled valve plate
• Through drive: Yes
• Air inlet port: Ø35 mm
• Air delivery port: M26 x 1.5
• Unloader port: M16 x 1.5
• Water inlet port: M16 x 1.5
• Water outlet port: M16 x 1.5
• Head fittings: Coolant 3/8" NPT, Discharge 1/2" NPT
• Mounting: Flange mount
• Discharge type: Flange
Applications: Designed as a direct-fit replacement for Mack MP7, MP8, MP10, Volvo D11, and Volvo D13 engine applications using the WABCO SS318 long-head compressor configuration. Used to supply compressed air for air brake and auxiliary pneumatic systems in heavy-duty trucks and vocational vehicles. Verify mounting, port configuration, and drive arrangement before installation.
CROSS-REFERENCE(S):
9121420000X, 9121420000, 9121140000, 9121120000, 9121120010, 20451727, 21353433, 702105AT, 20451724, 20733972, 20733974, 7421353433, 9121120017, 9121420007, 9121420010
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Verify compatibility with Mack MP7, MP8, MP10, Volvo D11, or Volvo D13 engine applications before installation
✔ Ensure proper gasket and seal installation during assembly
✔ Flush cooling and air systems before installation to prevent contamination
✔ Follow manufacturer torque specifications for mounting hardware
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
