ADAPTER-SEAL 1W4506 - Caterpillar

Track-Type Tractor:
D7R Series II (S/N: AEC1-UP; ABJ1-UP; ACS1-UP; ADW1-UP; AGN1-UP; AFG1-UP; BRP1-UP; BNM1-UP; BRN1-UP; BNX1-UP; BPT1-UP; BPK1-UP)
Description of Change: New belts, a new crankshaft pulley, a new alternator bracket, and a new alternator pulley are now used to increase service life of the belts on the D7R Series II Track-Type Tractor. If you are experiencing low belt life, check your machine for the latest parts. New software is also used to provide low idle charging capabilities. Refer to the Tables 1 and 2 for the correct parts for your machine.Adaptable To: The new belts and pulleys are adaptable to D7R Series II Track-Type Tractors. If your machine matches one of the serial numbers in the list below, refer to Table 1.
ABJ1-565
AGN1-614
AEC1-681
AFG1-524
ADW1-524
ACS1-589
BRP1-699,701-707,712
BNM1-515
BRN1-519
BNX1-701,703
BPT1-514
BPK1-512
Table 1
First Production Versus Current Production    
Part Name    Old Part Number    New Part Number    
Crankshaft Pulley     185-7541     233-9163    
Alternator Pulley     2W-8494     245-3702    
Alternator Bracket     197-7102 (03)     197-7102 (05)    
Banded V-Belt Set     198-6750     251-7496 (1)    
V-Belt Set     7M-4720     251-7493 (2)    
V-Belt Set     233-6316     251-7495 (3)    
Alternator (100 Amp)     200-8277     197-8820 (4)    
Alternator (100 Amp)     204-7449     197-8820 (5)    
Engine Software         244-2283 Engine Ratings Electronic Software (6)    
( 1 ) Use this banded belt for 8 blade Flexxaire fan and for the Ejector fan.
( 2 ) Use this belt for the Standard fan speed and for the Reversible fan.
( 3 ) Use this belt with Fan Speed Increase.
( 4 ) Part is required to provide low idle charging capabilities. See Service Magazine, SEPD0653, "A New Alternator Has Improved Durability".
( 5 ) Part is required to provide low idle charging capabilities in applications with high debris. See Service Magazine,