7N8421 Transmission Seal Ring

7N8421 is a transmission seal ring used in Caterpillar equipment and engines. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

• Articulated trucks: D250B, D250E, D250E II, D25C, D25D, D300B, D300E, D300E II, D30C, D350C, D35C
• Challenger tractors: 65, 65C
• Engine-machine applications: 3304
• Excavators: 215, 225, 235, 235B, 330, 330 FM L, 330 L, 330B, 330B L, 350, E180, E300B
• Generator set engines: 3304, 3304B, 3306, 3306B
• Generator sets: 3304B, 3306B
• Industrial engines: 3204, 3304, 3306, 3306B
• Landfill compactors: 816B, 816F
• Load-haul-dump machines: R1300, R1300G
• Marine engines: 3304, 3304B, 3306, 3306B
• Motor graders: 120G, 12G, 12H, 12H ES, 12H NA, 130G, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA
• Pipelayers: 572G, 572R
• Soil compactors: 815B, 815F
• Track loaders: 953, 963, 973, 973C
• Track skidders: 517, 527, D4HTSK II, D4HTSK III, D5HTSK II
• Track-type tractors: 30/30, D3C, D4E SR, D4H, D4H XL, D5B, D5E, D5H, D5H XL, D6D, D6E, D6E SR, D6G SR, D6G2 LGP, D6G2 XL, D6H, D6H XL, D6H XR, D6R, D7G, D7G2, D7H, D7R, DEUCE
• Truck engines: 3306, 3306B, 3306C
• Vibratory compactors: CB-534
• Wheel dozers: 814B, 814F
• Wheel loaders: 916, 926, 930R, 936F, 950B, 950B/950E, 966D, 966F, 966F II, 966G, 970F, 972G, G936
• Wheel scrapers: 615C, 627B, 627E, 627G, 637D, 637E, 637G
• Wheel skidders: 515, 518C, 525, 528, 528B, 530B, 545
• Wheel tractors: 611, 615C, 627B, 627E, 627F
• Wheeled excavator: W330B

Specifications