Skip to main content
DOUGLAS EQUIPMENT Miami · Since 1955
ES
CTP Hydraulic Pump

CTP-1891778

CYLINDER GP-EJECTOR 1891778 — 631E

CTP hydraulic pump 1891778 for 631E. Cast iron body, hardened steel gears, viton seals. Critical for excavator, loader and dozer hydraulic circuits — flow and pressure matched to OEM specs. Fits 631G, 637E, 637G.

In Stock — Miami Warehouse LATAM · 0% Pricing Eligible 30-50% vs OEM

Need a Quote?

Send your machine model + serial number. We confirm exact cross-reference, USD price, lead time, and LATAM documentation.

Call (305) 888-3700 Email Quote Request WhatsApp (LATAM)

Collect multiple parts, send all at once.

OEM Cross-References

CTP aftermarket reference cross-references the following OEM part numbers:

  • 1891778 OEM

Compatible Machines

Documented fitment for the following machines. Verify with your machine serial number for exact match.

  • 631E
  • 631G
  • 637E
  • 637G
  • 385C
  • 385C L
  • 390D
  • 390D L

Related Parts in Hydraulic Pump

CTP-01100

D65P, D65PX 01100 — KOMATSU®; 330M

View →

CTP-0541719

STANDARD EFFICIENCY 0541719 — AP-800C

View →

CTP-0935369

STANDARD EFFICIENCY 0935369 — 307B

View →

CTP-0937170

PUMP,GEAR 0937170 — E110B

View →
Available now

Need CTP-1891778 or related parts?

Send your machine model + part list. We confirm cross-reference, stock, and LATAM documentation in hours.

✓ Quote in hours ✓ Stock confirmed ✓ LATAM applied
+1 (555) 820-5222 Search by OEM number →
← Back to full parts catalog
(305) 888-3700
Call WhatsApp Quote