A New O-Ring Seal in the Implement Lines group is Now Used on Certain 631K and 637K Wheel Tractor-Scrapers {5051, 5057} Caterpillar


A New O-Ring Seal in the Implement Lines group is Now Used on Certain 631K and 637K Wheel Tractor-Scrapers {5051, 5057}

Usage:

631K WTR
Wheel Tractor-Scraper
631K (S/N: WTR1-106; WTW1-104)
637K (S/N: WTS1-118; WTT1-101; WTX1-100; WTY1-100)

Description Of Change: New O-Ring seal in the implement lines group is adaptable to the machines listed above. New O-Ring seal provides an improved fit for the coupling on the end of the hose assembly in the implement lines group.

Adaptable To:



Illustration 1g06224459
(A) 455-7334 Hose As
(B) 393-4854 Bank Valve
(1) 4J-0520 O-Ring Seal

Table 1
Parts List 
Item  Qty  New Part
Number 
Part Name  Former Part
Number (1) 
4J-0520  O-Ring Seal  1P-3703 
(1) The former part number listed is for reference only and may differ.
New 4J-0520 O-Ring Seal replaces the former 1P-3703 Rectangular Seal where hose assembly (A) connects to bank valve (B) in the 374-1732 Hydraulic Oil Lines Gp.

New O-Ring seal (1) is adaptable to the machines within the listed serial numbers, and is effective in production with all the machines after the listed serial numbers.

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