Dayco 77188GL Engine Coolant Bypass Hose
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Dayco
 Straight Radiator Hose - H.D.

Dayco 77188GL Engine Coolant Bypass Hose

Brand Dayco 77188GL
Product line Straight Radiator Hose - H.D.
Fits Buick · 4 vehicles

Heavy-duty line. Straight radiator hose construction for cooling-system service.

Cooling-system part. Engine coolant bypass hose for straight routing applications.

Cross-references ACDelco 31059, CARQUEST 24230 and CARQUEST 24430 for the same application. See all 9.

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Engine Coolant Bypass Hose Overview

Dayco 77188GL is a straight radiator hose from the Straight Radiator Hose - H.D. line, built for cooling-system service where a direct hose replacement is needed. It is listed for classic Buick applications and cross-references common aftermarket part numbers for the same application.

Key Features

  • Straight hose design for cooling-system routing.
  • Heavy-duty radiator hose line from Dayco.
  • Engine coolant bypass hose application.
  • Fits 1948-1949 Buick Special Series 40.
  • Fits 1948-1949 Buick Super Series 50.

Detailed Description

Dayco 77188GL is an engine coolant bypass hose intended for cooling-system plumbing where a straight hose configuration is required. The Straight Radiator Hose - H.D. product line focuses on radiator-hose service, and this part number is referenced for 1948-1949 Buick Special Series 40 and 1948-1949 Buick Super Series 50 applications. This part cross-references Gates (e.g., 24230, 24430) for the same application.

Common Uses

  • Replacing a worn or cracked coolant bypass hose.
  • Restoring coolant flow through a straight hose section.
  • Addressing leaks at hose connections.
  • Replacing a hose that has hardened with age.

Installation Notes

Verify hose routing and connection diameter before installation. Inspect adjoining fittings, clamps, and coolant condition during service. Confirm the application matches the vehicle and cooling-system layout before ordering. Fits 1948-1949 Buick Special Series 40 and 1948-1949 Buick Super Series 50, N/A.

Quality Assurance

Dayco is a recognized name in belts and cooling components, and the 77188GL is cataloged as part of its heavy-duty straight radiator hose line.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
1949BuickSpecial Series 40Straight Radiator Hose - H.D.
1949BuickSuper Series 50Straight Radiator Hose - H.D.
1948BuickSpecial Series 40Straight Radiator Hose - H.D.
1948BuickSuper Series 50Straight Radiator Hose - H.D.
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 31059CARQUEST — 24230CARQUEST — 24430Gates — 24230Gates — 24430Gates — 24630Goodyear — 56030NAPA — 663NAPA — 1807