/live/media/DY/DY_70354_Fro.jpg)
Dayco 70354 Radiator Coolant Hose - Lower or Lower - Oil Cooler To Radiator
| Brand | Dayco 70354 |
|---|---|
| Position | Lower and Lower - Oil Cooler To Radiator |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 3/4 |
| End 2 Inside Diameter | 1 3/4 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Single i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 14 1/2 |
| Product line | Curved Radiator Hose |
| Fits | Cadillac and Chevrolet · 14 vehicles |
Curved hose design. Helps route coolant smoothly through the system.
EPDM construction. Resists heat and coolant exposure for dependable service.
SAE-rated hose. Built to meet J20R4 Class D-1 and J1684 Type EC standards.
Cross-references ACDelco 22022M, Atlas MC12 and AutoZone C0489 for the same application. See all 17.
Dayco 70354 Curved Radiator Hose
Dayco 70354 is a curved radiator coolant hose built for lower cooling-system routing on select Cadillac and Chevrolet applications. Made from EPDM rubber with a black finish, it provides a direct-fit replacement for vehicles that need a 1 3/4-inch inside diameter at both ends.
The Dayco Curved Radiator Hose line focuses on application-specific hose shape and OE-style sizing for dependable coolant transfer. This 70354 hose is a single I.D. hose that matches the lower hose path used on 1963-1964 Cadillac DeVille and Eldorado, 1965 Cadillac Commercial Chassis, and 1969 Chevrolet Blazer, C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban.
Key Features
- EPDM construction for coolant-system service
- Curved radiator hose profile for lower hose routing
- 1 3/4-inch inside diameter at both ends
- Black finish for a clean OE-style appearance
- Single I.D. hose design
- Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
Fitment Details
- Fits 1969 Chevrolet Blazer, lower
- Fits 1969 Chevrolet C10 Suburban, lower
- Fits 1969 Chevrolet C20 Suburban, lower
- Fits 1969 Chevrolet K10 Suburban, lower
- Fits 1969 Chevrolet K20 Suburban, lower
- Fits 1965 Cadillac Commercial Chassis, lower
- Fits 1963-1964 Cadillac DeVille, lower
- Fits 1963-1964 Cadillac Eldorado, lower
What This Hose Helps Address
- Lower radiator hose replacement on aging cooling systems
- Cracked or hardened rubber hose material
- Coolant seepage at the hose connection points
- Incorrect hose shape or diameter during service repair
- Restoration work on Cadillac and Chevrolet classic vehicles
Installation Notes and Tips
Verify the lower hose routing, end diameters, and clearance before installation. This hose does not include a heat shield or protective sleeve, so inspect nearby components for abrasion or heat exposure during service. Confirm the vehicle application against the listed fitment for 1963-1965 Cadillac and 1969 Chevrolet models before final assembly.
Quality Assurance
Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for cooling-system service. Part number 70354 is also cross-referenced by Gates 20489 for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1969 | Chevrolet | Blazer | 4.1L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | C10 Suburban | 4.1L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | C10 Suburban | 4.8L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | C20 Suburban | 4.1L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | C20 Suburban | 4.8L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | K10 Suburban | 4.1L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | K10 Suburban | 4.8L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | K20 Suburban | 4.1L | L6 | Lower | Curved Radiator Hose |
| 1969 | Chevrolet | K20 Suburban | 4.8L | L6 | Lower | Curved Radiator Hose |
| 1965 | Cadillac | Commercial Chassis | — | — | Lower | Curved Radiator Hose |
| 1964 | Cadillac | DeVille | — | — | Lower | Curved Radiator Hose |
| 1964 | Cadillac | Eldorado | 7.0L | V8 | Lower | Curved Radiator Hose |
| 1963 | Cadillac | DeVille | — | — | Lower | Curved Radiator Hose |
| 1963 | Cadillac | Eldorado | 6.4L | V8 | Lower | Curved Radiator Hose |
| No rows match your filter. | ||||||