Dayco 71725 Radiator Coolant Hose - Lower

Brand	Dayco 71725
Position	Lower
Color	Black
Contains Protective Sleeve	Y
End 1 Inside Diameter	1 17/32
End 2 Inside Diameter	1 25/32
Hose Type	Dual I.D. Hose
Material	EPDM
SAE Specification	SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height	20
Product line	Curved Radiator Hose
Fits	Chevrolet and GMC · 28 vehicles

Curved hose design. Helps route coolant smoothly through the system.

EPDM construction. Resists heat and coolant exposure for dependable service.

Protective sleeve included. Adds extra abrasion resistance where the hose needs it.

Cross-references ACDelco 26257X, CARQUEST 22086 and Duralast E71725 for the same application. See all 13.

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Dayco Curved Radiator Hose 71725

Dayco 71725 is a curved lower radiator coolant hose for select Chevrolet and GMC full-size trucks. It uses EPDM construction, a dual I.D. hose profile, and a protective sleeve to support coolant routing in demanding engine bay conditions.

Compatible With 1994-1998 Chevrolet C1500 and K1500, and 1994-1998 GMC C1500 and K1500 lower radiator hose applications, this Dayco Curved Radiator Hose is built for direct replacement service. The Dayco curved radiator hose line focuses on application-specific hose shape and fitment for cooling system repairs.

Key Features

EPDM rubber construction for cooling system service
Black finish with curved hose routing
Dual I.D. hose design with 1 17/32 in. end 1 inside diameter and 1 25/32 in. end 2 inside diameter
Protective sleeve included; heat shield not included
Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
Fits lower radiator hose locations on select Chevrolet C1500, K1500, GMC C1500, and K1500 trucks

Detailed Description

Dayco 71725 is a radiator coolant hose engineered for lower hose routing on 1994-1998 Chevrolet C1500 and K1500, plus 1994-1998 GMC C1500 and K1500 models. The curved shape helps match the factory hose path, while the EPDM material is suited for coolant exposure and underhood temperature changes. The dual I.D. design supports the different connection sizes used in this application, and the protective sleeve adds an extra layer where the hose passes near surrounding components.

This part cross-references ACDelco 26257X and Gates 22086 for the same application. Dayco 71725 is a direct-fit cooling system replacement for owners servicing a lower radiator hose on Chevrolet C1500, Chevrolet K1500, GMC C1500, or GMC K1500 trucks.

Common Repair Uses

Replacing a cracked or leaking lower radiator hose
Restoring coolant flow after hose swelling or softening
Fixing coolant loss at the hose connection points
Addressing hose wear from heat, vibration, or age
Servicing a curved lower hose on Chevrolet and GMC truck cooling systems

Installation Notes and Tips

Verify the end diameters and routing before installation to confirm the hose matches the vehicle’s lower radiator connection points. Inspect the radiator neck, water pump outlet, and clamps for corrosion or damage before installing the new hose. After installation, refill the cooling system with the correct coolant and check for leaks with the engine at operating temperature.

Quality Assurance

This hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting standardized cooling hose performance for the listed applications.

This part fits 28 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
1998	Chevrolet	C1500	4.3L	V6	Lower	Curved Radiator Hose
1998	Chevrolet	K1500	4.3L	V6	Lower	Curved Radiator Hose
1998	GMC	C1500	4.3L	V6	Lower	Curved Radiator Hose
1998	GMC	K1500	4.3L	V6	Lower	Curved Radiator Hose
1997	Chevrolet	C1500	4.3L	V6	Lower	Curved Radiator Hose
1997	Chevrolet	K1500	4.3L	V6	Lower	Curved Radiator Hose
1997	GMC	C1500	4.3L	V6	Lower	Curved Radiator Hose
1997	GMC	K1500	4.3L	V6	Lower	Curved Radiator Hose
1996	Chevrolet	C1500	4.3L	V6	Lower	Curved Radiator Hose
1996	Chevrolet	K1500	4.3L	V6	Lower	Curved Radiator Hose
1996	GMC	C1500	4.3L	V6	Lower	Curved Radiator Hose
1996	GMC	K1500	4.3L	V6	Lower	Curved Radiator Hose
1995	Chevrolet	C1500	4.3L	V6	Lower	Curved Radiator Hose
1995	Chevrolet	C2500	4.3L	V6	Lower	Curved Radiator Hose
1995	Chevrolet	K1500	4.3L	V6	Lower	Curved Radiator Hose
1995	Chevrolet	K2500	4.3L	V6	Lower	Curved Radiator Hose
1995	GMC	C1500	4.3L	V6	Lower	Curved Radiator Hose
1995	GMC	C2500	4.3L	V6	Lower	Curved Radiator Hose
1995	GMC	K1500	4.3L	V6	Lower	Curved Radiator Hose
1995	GMC	K2500	4.3L	V6	Lower	Curved Radiator Hose
1994	Chevrolet	C1500	4.3L	V6	Lower	Curved Radiator Hose
1994	Chevrolet	C2500	4.3L	V6	Lower	Curved Radiator Hose
1994	Chevrolet	K1500	4.3L	V6	Lower	Curved Radiator Hose
1994	Chevrolet	K2500	4.3L	V6	Lower	Curved Radiator Hose
1994	GMC	C1500	4.3L	V6	Lower	Curved Radiator Hose
1994	GMC	C2500	4.3L	V6	Lower	Curved Radiator Hose
1994	GMC	K1500	4.3L	V6	Lower	Curved Radiator Hose
1994	GMC	K2500	4.3L	V6	Lower	Curved Radiator Hose
No rows match your filter.

Directly replaces or cross-references 13 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

ACDelco — 26257XCARQUEST — 22086Duralast — E71725Freshstart — 377Freshstart — 1028Gates — 22086General Motors — 15029023General Motors — 15963811General Motors — 15965640Goodyear — 61455Goodyear — 62074MasterPro — 22086NAPA — 8767