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SKU: MMHOSE-GM-12L | UPC: 748354022223
Mishimoto Silicone Lower Radiator Hose 1973-1986 GM C/K Truck 305/350
The Mishimoto MMHOSE-GM-12L Silicone Lower Radiator Hose is the best high-performance replacement for 1973-1986 GM C/K Trucks (Chevy/GMC) with 305/350 engines, delivering superior durability, heat resistance, and leak-free operation over stock rubber hoses. Constructed from premium multi-layer silicone reinforced for high pressure and extreme temperatures, this direct-fit hose resists cracking, collapsing, and degradation from heat, oil, and age – ideal for classic truck restorations, daily drivers, or performance builds on the square-body C10/C20/K10/K20 platform while maintaining factory fitment and appearance.
Key Features
- Multi-Layer Reinforced Silicone: 4-ply construction for superior strength, flexibility, and pressure resistance
- High Temperature Tolerance: Handles extreme underhood heat without cracking or collapsing
- Direct OEM Fit: Molded shape matches factory lower radiator hose routing and connections
- Corrosion & Chemical Resistant: Withstands coolant, oil, and road contaminants for long service life
- Black Color: Sleek, stealthy finish matches stock appearance and modern upgrades
- Mishimoto Lifetime Warranty: Backed for a lifetime of reliable cooling performance
Specifications
| Specification | Detail |
|---|---|
| Part Number | MMHOSE-GM-12L |
| Hose Type | Lower Radiator Hose |
| Material | Multi-Layer Reinforced Silicone |
| Color | Black |
| Compatibility | 1973-1986 GM C/K Trucks (Chevy/GMC) with 305/350 Engines |
| Installation | Direct Replacement – Uses Factory Clamps & Connections |
| Country of Origin | United States |
| Warranty | Mishimoto Lifetime Warranty |
Product Notes
- Direct replacement for lower radiator hose – fits 1973-1986 Chevy/GMC C/K Trucks with 305/350 V8
- Reinforced silicone construction eliminates common stock rubber failures from heat and age
- Perfect for restoration, daily drivers, or performance builds improves cooling system reliability
Installation Notes
- Estimated time: 30-60 minutes, easy difficulty, basic hand tools required
- Drain coolant, remove old hose, install new Mishimoto silicone hose, secure with factory clamps
- Refill system, bleed air, check for leaks professional installation optional
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1973-1986 | Chevrolet / GMC | C/K Series Trucks | 305 / 350 V8 Engines (C10, C20, K10, K20, Blazer, etc.) |
Why Choose Mishimoto Silicone Lower Radiator Hose?
- Multi-layer reinforced silicone resists heat, pressure, and degradation far better than stock rubber
- Direct fit with factory connections easy upgrade for improved cooling system reliability
- Mishimoto Lifetime Warranty trusted performance part for classic GM trucks
Frequently Asked Questions
-
Q: Will this hose fit my 1985 Chevy C10 with 350 V8?
A: Yes, Mishimoto MMHOSE-GM-12L fits 1973-1986 GM C/K Trucks with 305/350 engines. -
Q: Is it a direct replacement?
A: Yes, molded shape and connections match factory lower radiator hose exactly. -
Q: Do I need new clamps?
A: Reuse factory clamps or upgrade to constant-torque clamps for best results. -
Q: What is the warranty?
A: Covered by Mishimoto Lifetime Warranty built to last.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 1-2 lbs
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