4901721 Exhaust Valve for Caterpillar Equipment

4901721 is an exhaust valve for Caterpillar equipment powered by the C9 engine. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed for use in Caterpillar tracked bulldozers, autograders, wheel tractor-scrapers, excavators, industrial engines, machine engines, and forest machines. The valve type is exhaust, and the engine application identified in the available data is C9.

Fitment

• Tracked bulldozers: D6RII.
• Challenger equipment: MT735, MT745, MT755, MT765, MTC735, MTC745, MTC755, MTC765, 65D, 65C.
• Autograders: 12H.
• Wheel tractor-scrapers: 627G, 637D, 637G.
• Excavators: 330C FM, 330C L, 330C MH.
• Industrial engines: C9, C-9.
• Machine engines: C-9.
• Forest machines: TK711, TK721, TK722, TK732, TK741, TK751, TK752.

The fitment list includes the Caterpillar D6RII tracked bulldozer and 12H autograder, as well as the 627G, 637D, and 637G wheel tractor-scraper models. It also includes the 330C FM, 330C L, and 330C MH excavator configurations.

For Challenger equipment, the listed applications are MT735, MT745, MT755, MT765, MTC735, MTC745, MTC755, MTC765, 65D, and 65C. The engine-related applications are identified as C9 or C-9, depending on the designation used in the equipment information.

The forest-machine applications listed for this valve are TK711, TK721, TK722, TK732, TK741, TK751, and TK752. Model fitment should be checked against the engine configuration and the part number required for the specific machine.

Cross-reference numbers

• 490-1721

4901721 and 490-1721 identify the same part-number format used for this exhaust valve. The SKU is written without the separator, while the cross-reference format includes a hyphen.

Specifications