Genuine Mack 744GB53 Engine Coolant Thermostat Bypass T-Hose
California Proposition 65 Warning:
This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Condition:
This item is New Old Stock (NOS) surplus inventory. Packaging may show light shelf wear, dust, or minor cosmetic marks due to storage.
Mack 744GB53 / 25501933 Silicone Thermostat Bypass Coolant Hose for E7 / E-Tech / ASET Engines
Genuine Mack 744GB53 Engine Coolant Thermostat Bypass T-Hose
Keep your commercial diesel engine operating at peak thermal efficiency with this genuine OEM Mack 744GB53 Thermostat Bypass T-Hose. Engineered specifically for high-performance heavy-duty applications, this molded silicone bypass coolant hose regulates initial engine warm-up and coolant circulation across demanding driving conditions.
Product Features & Specifications
- OEM Part Number: 744GB53
- Cross Reference Numbers: 25501933, ECH-8729, 561.744GB53
- Inner Diameter (ID): 1.50 in.
- Overall Length: 14.50 in.
- Material: Heavy-Duty Reinforced Molded Silicone
- Condition: New Old Stock (NOS) / Surplus in Original OEM Package
Engine & Vehicle Compatibility
- Engine Series: Mack E7, E-Tech, and ASET Diesel Engines
- Truck Models: Mack CH, CH612, CH613, CHN612, CHN613, Pinnacle, Anthem Series
Note: Packaging may exhibit minor shelf wear due to storage. Please confirm exact part fitment with your engine serial number or vehicle specs prior to purchase.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.