1486

Part number: 178.4012111 OE MFG: Mack OEM Reference: 8MJ498P3 Cross Reference: CATERPILLAR : 0R4261, 2N2761, 3T2654, 3T2879, 3T3154, 4L9547, 5L4169, 5L5867, 8C3593, 8L8206, 9N0716; CUMMINS : 167497, 3021035, 3275183, 3603863, 3604322RX, 554998; MACK : 2132-10461038, 2132-1114098, 2132-1114161, 2132-1114819, 2132-1114985, 2132-1990354, 2132-1990483, 2132-1990495, 2132-1993803, 4333-1673725C91, 4333-263819C91, 4333-431481R91, 4333-522458C91, 4333-523579C91, 4333-530692C91, 8MJ4146P2, 8MJ4172, 8MJ4172P1, 8MJ4239M, 8MJ4267M, 8MJ498P3; NAVISTAR : 1673725, 1673725C91, 262762, 262762C91, 263819, 263819C91, 431481, 431481R91, 510275, 510275C91, 522458, 522458C91, 523579, 523579C91, 530692, 530692C91, 777525, 777525C91, 782685, 782685C91, 875755, 875755C91, 997938, 997938R91 | AUTOMANN : 178.4212111; PAI : 1486, 1490, EM14860, EM14900

Electrical Starter Rotation: Clockwise Voltage: 12 Teeth: 11 Series: 40 MT Mack application Part number: PSM-1490 OE MFG: MACK OEM Reference: 8MJ498P3 Cross Reference: CATERPILLAR : 0R4261, 2N2761, 3T2654, 3T2879, 3T3154, 4L9547, 5L4169, 5L5867, 8C3593, 8L8206, 9N0716; CUMMINS : 167497, 3021035, 3275183, 3603863, 3604322RX, 554998; MACK : 2132-10461038, 2132-1114098, 2132-1114161, 2132-1114819, 2132-1114985, 2132-1990354, 2132-1990483, 2132-1990495, 2132-1993803, 4333-1673725C91, 4333-263819C91, 4333-431481R91, 4333-522458C91, 4333-523579C91, 4333-530692C91, 8MJ4146P2, 8MJ4172, 8MJ4172P1, 8MJ4239M, 8MJ4267M, 8MJ498P3; NAVISTAR : 1673725, 1673725C91, 262762, 262762C91, 263819, 263819C91, 431481, 431481R91, 510275, 510275C91, 522458, 522458C91, 523579, 523579C91, 530692, 530692C91, 777525, 777525C91, 782685, 782685C91, 875755, 875755C91, 997938, 997938R91; OTHER : 1114098, 1114161, 1114985, 50-108, CM-4019, ST-0511S | AUTOMANN : 178.4012111, 178.4212111; PAI : 1486, EM14860, EM14900 Product Class: Starters & Related

Part number: 178.4212111 OE MFG: Cummins OEM Reference: 554998 Cross Reference: CATERPILLAR : 0R4261, 2N2761, 3T2654, 3T2879, 3T3154, 4L9547, 5L4169, 5L5867, 8C3593, 8L8206, 9N0716; CUMMINS : 167497, 3021035, 3275183, 3603863, 3604322RX, 554998; MACK : 2132-10461038, 2132-1114098, 2132-1114161, 2132-1114819, 2132-1114985, 2132-1990354, 21321990483, 2132-1990495, 2132-1993803, 4333-1673725C91, 4333-263819C91, 4333-431481R91, 4333-522458C91, 4333-523579C91, 4333-530692C91, 8MJ4146P2, 8MJ4172, 8MJ4172P1, 8MJ4239M, 8MJ4267M, 8MJ498P3; NAVISTAR : 1673725, 1673725C91, 262762, 262762C91, 263819, 263819C91, 431481, 431481R91, 510275, 510275C91, 522458, 522458C91, 523579, 523579C91, 530692, 530692C91, 777525, 777525C91, 782685, 782685C91, 875755, 875755C91, 997938, 997938R91 | AUTOMANN : 178.4012111; PAI : 1486, 1490, EM14860, EM14900

Starter Clockwise Rotation 11 Tooth Count 42 MT Mack Multiple Use Application Part number: EM14860 OE MFG: DEL OEM Reference: 1990483 Cross Reference: CATERPILLAR : 0R4261, 2N2761, 3T2654, 3T2879, 3T3154, 4L9547, 5L4169, 5L5867, 8C3593, 8L8206, 9N0716; CUMMINS : 167497, 3021035, 3275183, 3603863, 3604322RX, 554998; MACK : 2132-10461038, 2132-1114098, 2132-1114161, 2132-1114819, 2132-1114985, 2132-1990354, 2132-1990483, 2132-1990495, 2132-1993803, 4333-1673725C91, 4333-263819C91, 4333-431481R91, 4333-522458C91, 4333-523579C91, 4333-530692C91, 8MJ4146P2, 8MJ4172, 8MJ4172P1, 8MJ4239M, 8MJ4267M, 8MJ498P3; NAVISTAR : 1673725, 1673725C91, 262762, 262762C91, 263819, 263819C91, 431481, 431481R91, 510275, 510275C91, 522458, 522458C91, 523579, 523579C91, 530692, 530692C91, 777525, 777525C91, 782685, 782685C91, 875755, 875755C91, 997938, 997938R91; OTHER : 10461038, 1990354, 1990483, 1990495, 1993803 | AUTOMANN : 178.4012111, 178.4212111; PAI : 1486, 1490, EM14900 Product Class: Starters & Related

Starter Clockwise Rotation 11 Tooth Count 40 MT Mack Multiple Use Application Part number: EM14900 OE MFG: MACK OEM Reference: 8MJ498P3 Cross Reference: CATERPILLAR : 0R4261, 2N2761, 3T2654, 3T2879, 3T3154, 4L9547, 5L4169, 5L5867, 8C3593, 8L8206, 9N0716; CUMMINS : 167497, 3021035, 3275183, 3603863, 3604322RX, 554998; MACK : 2132-10461038, 2132-1114098, 2132-1114161, 2132-1114819, 2132-1114985, 2132-1990354, 2132-1990483, 2132-1990495, 2132-1993803, 4333-1673725C91, 4333-263819C91, 4333-431481R91, 4333-522458C91, 4333-523579C91, 4333-530692C91, 8MJ4146P2, 8MJ4172, 8MJ4172P1, 8MJ4239M, 8MJ4267M, 8MJ498P3; NAVISTAR : 1673725, 1673725C91, 262762, 262762C91, 263819, 263819C91, 431481, 431481R91, 510275, 510275C91, 522458, 522458C91, 523579, 523579C91, 530692, 530692C91, 777525, 777525C91, 782685, 782685C91, 875755, 875755C91, 997938, 997938R91; OTHER : 1114098, 1114161, 1114819, 1114985 | AUTOMANN : 178.4012111, 178.4212111; PAI : 1486, 1490, EM14860 Product Class: Starters & Related

When your hedgecutter starts struggling to lift its cutting bar or moves sluggishly through thick growth, your hydraulic pump is probably calling it quits. McConnell PA33 and PA44 hedgecutters rely on steady hydraulic pressure to power their cutting systems, and when that pump fails, your roadside maintenance comes to a grinding halt. This replacement gear pump gets your equipment back to slicing through overgrowth like it should. What You're Getting Standard gear pump design that delivers consistent flow for smooth cutting bar operation Built to match the pressure requirements of PA33 and PA44 hydraulic systems Durable construction that handles the constant cycling of hedge cutting work Direct replacement for worn McConnell pumps—no modifications needed Built for Roadside Maintenance McConnell PA33 and PA44 hedgecutters are workhorses for maintaining roadsides, fence lines, and waterway banks. These machines need reliable hydraulic power to operate their cutting bars, lift arms, and positioning systems. Whether you're clearing highway shoulders, maintaining rural roads, or keeping utility easements clean, consistent hydraulic pressure makes all the difference between smooth operation and frustrating breakdowns. Made to Last Hedgecutters work in dusty, debris-filled conditions that test every component. This gear pump features robust internal components and quality seals that resist contamination and maintain pressure even when working through heavy brush and brambles. The proven gear design handles the pressure spikes that come with hitting thick stems and branches. Installation Notes Hydraulic pump replacement requires draining the system and may involve removing other components for access. Always use clean hydraulic fluid and replace filters during installation to prevent contaminating your new pump. Check all hydraulic lines and fittings while you've got the system open—old hoses often fail shortly after pump replacement.