Description
PACCAR 85MM "CERTIFIED REMANUFACTURED" TWIN AIR BRAKE COMPRESSOR | FOR MX13 ENGINES
PART NUMBER(S):
Fleet Products: 9125181030X (Remanufactured) | OE: 9125181030, 1805490, 912518108R, 9125181089, 912518108, 2020644PEX, 2020644, 2020644PRX, 1674080, 1883112, 912 518 101 0, 805.01.2330, 1977704, 1696200, 1805393, 1883117, 9125181000
DESCRIPTION:
Model: WABCO Twin-Cylinder
Vehicles: PACCAR MX13 Trucks
• Mounting Type: Flange Mount
• Cooling Method: Water-cooled
• Lubrication: Engine-supplied
• Piston Diameter: 85 mm (3.35")
• Piston Stroke: 42 mm (1.65")
• Swept Volume: 476 cm³
• Maximum Operating Pressure: 12.5 bar (181.3 psi)
• Operating Speed: Up to 3000 RPM
• Cylinder Configuration: Twin-Cylinder
• Crankshaft Thread: M20 x 1.5
• Air Intake Port: M30 x 1.5
• Air Discharge Port: M27 x 2.0
• Oil Supply Port: M14 x 1.5
• Coolant Ports: M16 x 1.5 (x3)
• Unloader Control Port: M22 x 1.5
Applications: Engineered for PACCAR MX13 commercial engines in Class 8 trucks and semi-trailers. This compressor supports heavy-duty air brake system pressurization under demanding fleet and long-haul conditions. : ATTENTION INSTALLER, OIL TUBE NOT SUPPLIED WITH REPLACEMENT COMPRESSOR. OIL TUBE AND FITTING WILL NEED TO BE TRANSFERRED FROM COMPRESSOR CORE AND INSTALLED ON NEW COMPRESSOR. 61W12OFT | Oil supply tube with seal (PACCAR) 1682342PE sold separately.
CROSS-REFERENCE(S):
100MM, 1805490, 1805490PEX, 1977704, 1977704PRX, 2020644PEX, 2237398, 2237398PEX, 6300-912518108R, 702410AT, 9125181030, 9125181080, 9125181089, 912518108R, 9125181100, 9125181140, S912-518-103-7, S912-518-1080, S9125181037, S9125181080, S9125181080X, S9125181087, S9125181087X, S912518108R, S9125181100, WAB912518108R
A cross-reference listing means this part should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Ensure cooling system is flushed and clean before installing new compressor
✔ Use new gaskets and torque all flange bolts to OEM spec
✔ Verify oil delivery from engine lubrication system
✔ Check crankshaft thread compatibility (M20 x 1.5)
✔ Match all ports and air routing with the original compressor
✔ Confirm compatibility with PACCAR MX13 engine series
SOLD AS REMANUFACTURED – CORE RETURN REQUIRED
Built to OEM standards — thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
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Warranty Information
Reviews
1 Review
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MX13 twin compressor worked great on my Paccar
I put this 9125181030X reman compressor on my MX13 after the original started dropping off on air build, and the replacement fit exactly the way it should. Flange lined up, ports matched, and after swapping the oil tube over from my core it went in clean. Once fired up the air came on steady, no chatter, no leaks, and the truck held pressure the way it used to. I run long haul with some heavy mountain pulls and it has been solid so far. Good quality reman and a straightforward install for anyone familiar with these MX13 setups
