Meritor/WABCO Trailer (and Truck) ABS
Meritor WABCO has been a trailer ABS technology leader since 1993, offering ABS as standard equipment at all major trailer OEMs.
Enhanced Easy-Stop ABS provides trailer-monitoring and control capabilities to fleets and owner-operators with systems configurations to meet any trailer application – basic, standard and premium.
2SM/1M Basic: Two-sensor/one-ABS relay valve system provides increased stability while meeting FMVSS 121 requirements. Recommended for converter dolly and semi-trailer applications.
2S/2M Standard: Two-sensor/two-ABS relay valve system delivers extra control and stability with increased protection against tire flatspotting. Valves can be serviced individually. Recommended for single- and tandem-axle semi-trailers.
2M Premium: Choice of two or four sensors. A third relay valve is available on the four-sensor model. Recommended for tandem-axle semi-trailers, multi-axle or full trailers.
Enhanced Easy-Stop ABS provides trailer-monitoring and control capabilities to fleets and owner-operators with systems configurations to meet any trailer application – basic, standard and premium.
2SM/1M Basic: Two-sensor/one-ABS relay valve system provides increased stability while meeting FMVSS 121 requirements. Recommended for converter dolly and semi-trailer applications.
2S/2M Standard: Two-sensor/two-ABS relay valve system delivers extra control and stability with increased protection against tire flatspotting. Valves can be serviced individually. Recommended for single- and tandem-axle semi-trailers.
2M Premium: Choice of two or four sensors. A third relay valve is available on the four-sensor model. Recommended for tandem-axle semi-trailers, multi-axle or full trailers.
If your trailer already uses Easy Stop, why should you upgrade to Enhanced Easy Stop?
Enhanced Easy Stop adds a very important feature, PLC, that allows monitoring of the system from the cab. Also, the enhanced system allows the ECU and modulator valve to be serviced individually.
Other Helpful Information
Meritor WABCO ABS parts currently in stock
| |
| ECU |
| | S4008506000 | trailer |
| | Enhanced Easy-Stop 2S/2M (after 3/1/01) |
| | S4461082010 | trailer |
| | Enhanced Easy-Stop 2S/1M Basic with bracket (after 3/1/01) ECU only |
| | S4008506027 | truck |
| | 4S/4M cab mounted tractor SAE J1939, PLC, Basic ECU |
| |
| ECU+valve |
| | R955320 | trailer |
| | Easy Stop Upgrade for 2S/2M, 4S/2M w. power adapter cable |
| | OEM pn: S472 500 012 0 |
| | R955321 | trailer |
| | Easy Stop Upgrade for 2S/2M, 4S/2M w. power + diagnostic cable adapter |
| | OEM pn: S472 500 012 0 |
| | R955322 | trailer |
| | Easy Stop Upgrade for 2S/1M (steerable axle trailers) w. power cable |
| | OEM pn: S472 500 011 0 |
| | R955344 | trailer |
| | Easy Stop Upgrade for 2S/1M (standard trailers) w. power adapter cable |
| | OEM pn: S472 500 021 0 |
| | S4005001010 | trailer |
| | Enhanced Easy-Stop 2S/1M Basic with bracket (after 3/1/01) |
| | Haldex AQ960503, Stoughton, Trailmobile, Utility trailers |
| | S4005001020 | trailer |
| | Enhanced Easy-Stop 2S/2M (after 3/1/01) |
| | Stoughton trailers |
| | S4005001030 | trailer |
| | Enhanced Easy-Stop 2S/2M, 4S/2M, 4S/3M Premium (after 3/1/01) |
| | Stoughton, Trailmobile, Utility, Winston trailers |
| |
| modulator valve |
| | S4721950050 | tractor |
| | 1/2" inlet & outlet, Kostal style connector |
| | S4721950940 | tractor |
| | 1/2" inlet & outlet, bayonet style connector |
| | S4725000032 | tractor |
| | Tractor ABS modulator valve |
| | replaces 472 195 082 0 |
| | R955378 | trailer |
| | 2 x 3/4" supply ports, 4 x 3/8" delivery ports, 3-4 psi crack press. 2M/3M systems |
| | S4721950320, S4721950270,S4721950260, S4721950230, |
| | S4721950330 | trailer |
| | for 3M Enhanced Easy-Stop or 2M/3M Easy-Stop Units on standard trailers |
| |
| wheel sensor |
| | R955327 | general |
| | 11' cable, 90° sensor, clip & grease packet |
| | OEM pn: S441 032 092 0 |
| | R955329 | general |
| | 5.6' cable, straight sensor, clip & grease packet, typical for front axles |
| | OEM pn: S441 032 919 0 |
| | R955335 | general |
| | 1' cable, 90° sensor, clip & grease packet |
| | OEM pn: S441 032 808 0 |
| | R955336 | general |
| | 3' cable, 90° sensor, clip & grease packet |
| | OEM pn: S441 032 809 0 |
| | R955337 | general |
| | 5.8' cable, straight sensor, clip & grease packet, typical for front axles |
| | OEM pn: S441 032 444 0 |
| | R955341 | general |
| | 5.8' cable, 90° sensor, clip & grease packet |
| | OEM pn: S441 032 813 0 |
| | R955342 | general |
| | 6.6' cable, 90° sensor, clip & grease packet |
| | OEM pn: S441 032 814 0 |
| | R955349 | general |
| | 6.6' cable, straight sensor, clip & grease packet, typical for front axles |
| | OEM pn: S441 032 971 0 |
| |
| sensor cable |
| | S4497130180 | general |
| | 6 ft. 2-wire sensor cable |
| | S4497130300 | general |
| | 10 ft. 2-wire sensor cable |
| | S4497130500 | general |
| | 16 ft. 2-wire sensor cable |
| |
| sensor clip |
| | R955459 | general |
| | Copper-beryllium sensor clip includes grease packet, .63" id 1.18" length |
| | S8997598154 | general |
| | Chrome nickel sensor clip and grease packet. |
| |
| power cable |
| | S4493260050 | general |
| | 1.65' power cable enhanced easy stop 4 conductor |
| | S4493260300 | general |
| | 10' power cable enhanced easy stop 4 conductor |
| | S4493260470 | general |
| | 14' power cable enhanced easy stop 4 conductor |
| | S4493260600 | general |
| | 20' power cable enhanced easy stop 4 conductor |
| | S4493281100 | general |
| | 36' power cable enhanced easy stop 4 conductor w. 4 bare wires at one end |
| | S4493641420 | general |
| | 1.65/10' power cable enhanced easy stop "Y" style for diagnostic connector |
| | S4493641430 | general |
| | 3/10' power cable enhanced easy stop "Y" style for diagnostic connector |
| | S4493641500 | general |
| | 13/10' power cable enhanced easy stop "Y" style for diagnostic connector |
| | S8946060370 | trailer |
| | 1.27 ft., Easy stop 4 conductor pigtail w. harness connector |
| | S8946060380 | trailer |
| | 14 ft., Easy stop 4 conductor pigtail w. harness connector |
| | S894606050-0 | trailer |
| | 20 ft., Easy stop 4 conductor pigtail w. harness connector |
| | S8946062752 | trailer |
| | 1.65' extension connects relay valve to ECU (.5M) |
| | S8946073120 | trailer |
| | adapter connects Easy Stop Power cable to enhanced ES ECU |
| | S8946073130 | trailer |
| | Easy Stop Power/Diagnostic Adapter cable |
| |
| relay valve |
| | S4725000062 | tractor |
| | Tractor ABS relay valve |
| | replaces 973 011 021 0 |
| | S4725000072 | tractor |
| | Tractor ABS relay valve |
| | replaces 973 011 022 0 |
| | S9730119212 | tractor |
| | fits 4S/4M and 6S/4M rear axle ABS systems |
| | replaces 973 011 026 0 |
| |
| Other |
| | R955367 | general |
| | 12v solenoid valve |
| | S4325000050 | trailer |
| | In line filter mounted near gladhand to prevent contamination of trailer air supply |




