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Condition: Used
Stock Number: 8811303-09
Description: All Cat rebuilt 637 rear transmission, dyno tested and on metal skid.
Updated: Thursday, June 18, 2026 02:47 pm
Location: Fresno, California, USA
Seller: Quinn Used Parts - Fresno
Condition: Rebuilt
Stock Number: 1989870R
Description: REBUILT CAT REAR 637G DIFFERENTIAL & BEVEL GEAR GROUP
Updated: Tuesday, June 30, 2026 08:39 am
Location: Washougal, Washington, USA
Seller: Portland Tractor Inc
Condition: Rebuilt
Stock Number: 1569778R
Description: REBUILT READY TO SHIP CAT 637G 631E 633EII 631G DIFFERENTIAL & BEVEL GEAR GRP
Updated: Tuesday, June 30, 2026 08:39 am
Location: Washougal, Washington, USA
Seller: Portland Tractor Inc
Quantity: 2
Condition: New
Stock Number: 9Y3317
Description: CATERPILLAR 637G CORE
Updated: Friday, May 29, 2026 07:29 am
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Condition: New
Description: Part # 2478137 / 2478138. NEW CAT LIST PRICE $16,733. Hydraulic Tank. Fits Cat 637G. New CAT. Loading assistance available.
Updated: Tuesday, June 02, 2026 09:54 am
Location: Redmond, Oregon, USA
Seller: CENTRAL PARTS CONNECTION