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< Back to Product News
TREK Quality Idler Assemblies
Model D4H, D4H XL, D4H LGP, D5M, D5M XL, D5M LGP, 561H Trek PN# Old Inverted Seal Current Cat Type New SS Tread Wheel Diameter 01-10-0541 6T2614 160-9754 Large 500 MM 01-10-0542 7T4400 160-9753 Small 475 MM
Model D5H, D6M Trek PN# Old Inverted Seal Current Cat Type New SS Tread Wheel Diameter 01-10-0551 6T1764 161-7549 538 MM
Model D6H, D6H XL, D6H LGP, D6R, D6R XL, D6H LGP Trek PN# Old Inverted Seal Current Cat Type New SS Tread Wheel Diameter 01-10-0561 6T3216 149-2493 Large 570 MM 01-10-0565 7T6996 151-4587 Small 545 MM
Model D7H, D7H LGP, D7H XR, D7R, D7R LGP, D7R XR Trek PN# Old Inverted Seal Current Cat Type New SS Tread Wheel Diameter 01-10-0571 9W7647 161-5792 Large 628 MM 01-10-0572 6Y2031 135-9896 Small 585 MM
Our Trek P/N is the Same - The Idler Assembly is New!
Years ago when Caterpillar introduced High Drive Rollers and Idlers they used a new concept "Inverted" metal to metal oil seal group. These seals have negative aspects, which include difficult correct installation, and susceptibility to packing and outside intrusion causing seal failure. The last several years, Cat has reverted to the old standard duo-cone seal where both sides are the same, (Symmetrical Seal), eliminating inverted seal assemblies.
Trek has recognized the chronic failure of high drive idlers in part, due to the inverted seal. Trek plans to convert high drive idler and roller assemblies to the symmetrical seal design, in an effort to improve product performance and customer satisfaction.
Today, Trek offers D4H-5M through D6H-7R idlers and D11N-11R rollers with symmetrical seals.
All manufacturer names, numbers, symbols and descriptions listed are used for reference and it is not implied that any part listed is the product of these manufacturers.
