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Condition: New
Stock Number: 8812541
Description: NEW CAT SURPLUS 631/637 TRANSMISSION
Updated: Thursday, June 18, 2026 02:47 PM
Location: Fresno, California, USA
Seller: Quinn Used Parts - Fresno
Condition: Used
Stock Number: 1413095
Description: Complete push block and bail to fit a 637D, includes the cylinder.
Updated: Tuesday, July 28, 2026 07:58 AM
Location: Loveland, Colorado, USA
Seller: ETI Equipment & Trucks Inc
Condition: Used
Stock Number: 1W4074
Description: Call for pricing and availability.
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Condition: Used
Stock Number: 1N4307
Description: Call for pricing and availability.
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Quantity: 2
Condition: New
Stock Number: 6N9775
Description: CATERPILLAR 637D TOP TANK
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Quantity: 10
Condition: New
Stock Number: 7N9642
Description:
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Quantity: 4
Condition: New
Stock Number: 2W1008
Description: CATERPILLAR 637D OIL COOLER
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Quantity: 8
Condition: New
Stock Number: 6N6762
Description: CATERPILLAR 637D CORE
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Condition: Used
Description: Transmission (Front) - Good Used Condition , Call For Information
Updated: Tuesday, June 16, 2026 08:37 AM
Location: Dallas, Texas, USA
Seller: Strickland Eq Co
Condition: Used
Description: Transmission (Rear) - Good Used Condition
Updated: Tuesday, June 16, 2026 08:37 AM
Location: Dallas, Texas, USA
Seller: Strickland Eq Co
Condition: Used
Description: used hitch group from dismantled 637E
Updated: Tuesday, June 16, 2026 08:37 AM
Location: Dallas, Texas, USA
Seller: Strickland Eq Co
Condition: Used
Stock Number: 5T4635
Description: Good Used - Opened nd Inspected
Updated: Thursday, August 06, 2026 09:41 AM
Location: St. Albert, Alberta, Canada
Seller: Pro-Ex Canada Inc.
Quantity: 2
Condition: New
Stock Number: 2W0029
Description:
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
Quantity: 2
Condition: New
Stock Number: 9Y3317
Description: CATERPILLAR 637E CORE
Updated: Friday, May 29, 2026 07:29 AM
Location: Sweet Home, Oregon, USA
Seller: RADIATOR SUPPLY HOUSE
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