COVER AS 8D7174 - Caterpillar

Caterpillar Products:
AllService Magazine SEPD0343, 03 February 1997, "New Metering Pump Groups For Steering Control Prevent Oil Leaks". Disregard this article. See the replacement article that follows.Description of Change: New metering pump groups (steering control units) use improved seals, a new end cap, and a spacer to prevent oil leaks.New round cross section o-ring seals replace the former square cross section seals between the sections of the gerotor assembly. The former square cross section seals could twist during the assembly of the metering pump. The o-ring seals are installed with the steering control unit facing up, to eliminate blind assembly of the o-rings.The bolts that mount the end cap and gerotor assembly to the metering body, were changed from 12 point bolts to self-sealing 6 point Torx head bolts.A one piece shaft seal replaced the former three piece shaft seal for low input torque steering units.Adaptable To: The new metering pump groups are direct replacements for the former metering pump groups listed in the following chart.Note: The former metering pump groups can be updated by installing one of the conversion kits listed in the chart.Note: Former metering pump groups, having low input torque shaft seals, can be updated with a one piece shaft seal, replacing the former three piece arrangement.Seal kits to update former metering pump groups are listed in the chart
Table 1
New Metering Pump Groups and Service Replacement Kits    
Former Metering Pump Group     New Metering Pump Group     Conversion Kit     Seal Kit    
1U-2104     119-8748     119-8116     118-4341    
3G-7387     119-8745     119-8116     118-4341    
3G-7595     119-8747     119-8119     118-4341    
4T-3198     119-8757     121-0888     118-4341    
4T-3199     119-8770     119-8778     118-4341    
4T-3200     119-8752     119-8122     118-4341    
4T-3201     119-8761     119-8116     118-4341    
4T-6817     119-8761     119-8119     118-4341    
4T-6896     118-6796     118-4342     118-4341    
4T-7387     119-8765     119-8116     118-4341    
5G-1620
(1)     119-8749     119-8124     118-4660    
6E-0129     119-8771    
119-8114     118-4341    
6E-2725     119-8752     119-8116     118-4341    
6E-2726     119-8763     119-8119     118-4341    
6E-3054
(1)     119-8746     121-0861     118-4660    
6E-5290     119-8739     118-4342     118-4341    
6E-5470
(1)     119-8768     119-8122     118-4660    
6E-6406     119-8767     119-8116     118-4341    
6E-6460
(1)     119-8740     119-8122