1991 Mack RW Air Filter
Browse our online catalogue to find original replacement Air Filters specifically designed to fit a 1991 Mack RW.

1991 Mack RW Air Filter
$103.41
10+ In Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Vehicle Fitment Notes:
Original Equipment Part Number R950011
Original Equipment Part Number R950011

1991 Mack RW Air Filter
$103.41
10+ In Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Pick-Up: Ready in 1 Hour (Order before 4:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number R950011
Original Equipment Part Number R950011




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Aspiration: Turbocharged; Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Fuel Type: DIESEL; Region: United States;
Aspiration: Turbocharged; Engine Base: 14.0L 14013cc 855ci L6 (5.5x6; 139.7x152.4); Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG11 Housing
Original Equipment Part Number 57MD42M Donaldson ECG11 Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Aspiration: Turbocharged; Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Fuel Type: DIESEL; Region: Canada;
Aspiration: Turbocharged; Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Fuel Type: DIESEL; Region: Canada;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Aspiration: Turbocharged; Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Fuel Type: DIESEL; Region: United States;
Aspiration: Turbocharged; Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.0L 672ci6; Engine Designation: E6; Fuel Type: DIESEL; Region: United States;
Engine Base: 11.0L 672ci6; Engine Designation: E6; Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Engine Base: 11.9L 6Cyl - (-)(728) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 16.4L 8Cyl - (-)(998) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Engine Base: 16.4L 8Cyl - (-)(998) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: Canada;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing




1991 Mack RW Air Filter
$155.17
Limited Stock
Condition: New
Ships: Today, Apr. 15th
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Pick-Up: Ready in 2-4 Hours (Order before 3:00 PM)
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 16.4L 8Cyl - (-)(998) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Engine Base: 16.4L 8Cyl - (-)(998) U/K U/K(Bore)U/K U/K(Stroke); Fuel Type: DIESEL; Region: United States;
Vehicle Fitment Notes:
Original Equipment Part Number 57MD42M Donaldson ECG Housing
Original Equipment Part Number 57MD42M Donaldson ECG Housing

1991 Mack RW Air Filter
$145.69
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.0L 672ci6;
Engine Base: 11.0L 672ci6;
Vehicle Fitment Notes:
Air OE Number : 57MD42M
Air OE Number : 57MD42M

1991 Mack RW Air Filter
$145.69
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 11:30am)
Pick-Up: Same Business Day (Order before 11:30am)
Required Per Vehicle: 1
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.0L 672ci6; Engine Designation: E6; Engine Manufacturer: Mack;
Engine Base: 11.0L 672ci6; Engine Designation: E6; Engine Manufacturer: Mack;
Vehicle Fitment Notes:
OE Number : 57MD42M
OE Number : 57MD42M

1991 Mack RW Air Filter
$108.37
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.0L 672ci6;
Engine Base: 11.0L 672ci6;
Vehicle Fitment Notes:
Optional OE Number : 57MD44M
Optional OE Number : 57MD44M

1991 Mack RW Air Filter
$108.37
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 11.0L 672ci6; Engine Designation: E6; Engine Manufacturer: Mack;
Engine Base: 11.0L 672ci6; Engine Designation: E6; Engine Manufacturer: Mack;
Vehicle Fitment Notes:
Optional OE Number : 57MD44M
Optional OE Number : 57MD44M

1991 Mack RW Air Filter
$108.37
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
Optional OE Number : 57MD44M
Optional OE Number : 57MD44M

1991 Mack RW Air Filter
$108.37
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1991 Mack RW
Equipped With:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1); Engine Designation: 3406; Engine Manufacturer: Caterpillar;
Vehicle Fitment Notes:
Optional OE Number : 57MD44M
Optional OE Number : 57MD44M