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Z and U Hose Bends
Mackay Automotive presents Universal Z & U Hose Bends, designed for a broad range of applications in the automotive, industrial, and machinery sectors. These hoses offer flexibility and durability, ensuring seamless fluid transfer in demanding conditions.
UNIVERSAL “Z” HOSE ™ BENDS
The Universal Z Hose™ Bends are ideal for water coolant, low-pressure fuel and oil, as well as EFV (Exhaust Fume Vent) and PCV (Positive Crankcase Ventilation) applications. They cover a wide range of small-bore market applications, reducing inventory needs while maintaining high versatility.
Mackay Universal Small Bore “Z” hose ™ bends, are specially designed to provide the largest small-bore application coverage from a few part numbers.
Mackay Z Bend hoses are Flexible through a wide range of angles and planes.
Universal “U” Hose™ Bends
The U Hose™ Bends Universal Applications are for
- Water / Coolant
- Coolant Hose UHB##
- Suitable for: Plain water, automotive coolant applications.
- Designed for long service life with resistance to heat, ozone and electrochemical degradation.
Standards:
6mm to 19mm ID Exceed Heater Hose Specification SAE J20R3 Type EC Class D-1 and D-2.
25mm ID and larger Exceed Radiator Hose Specification SAE J20R4 Type EC Class D-1 and D-2.
Both the Z Hose™ Bends and U Hose™ Bends are engineered for reliability, durability, and long-lasting performance in various vehicle and machinery systems, offering a high-quality solution for coolant and fluid transfer applications.
UNIVERSAL “Z” HOSE ™ BENDS
Universal Applications for Water Coolant, Low- Pressure Fuel & Oil and EFV & PCV Covers majority of small-bore market.
| ID mm | ID In. | Part No. | Maximum Working Pressure | SAE Burst Pressure Requirement | Working Temperature Range | Application & Specification | |||
|---|---|---|---|---|---|---|---|---|---|
| psi | MPa | psi | MPa | Min | Max | ||||
| 6 | 1/4 | ZHB6 | 62 | 0.43 | 249 | 1.72 | -40°C | +125°C | Coolant SAE 20R3 |
| 8 | 5/16 | ZHB8 | 62 | 0.43 | 249 | 1.72 | -40°C | +125°C | Coolant SAE 20R3 |
| 10 | 3/8 | ZHB10 | 62 | 0.43 | 249 | 1.72 | -40°C | +125°C | Coolant SAE 20R3 |
| 12 | 15/32 | ZHB12 | 62 | 0.43 | 249 | 1.72 | -40°C | +125°C | Coolant SAE 20R3 |
| 16 | 5/8 | ZHB15 | 62 | 0.43 | 249 | 1.72 | -40°C | +125°C | Coolant SAE 20R3 |
| 19 | 3/4 | ZHB19 | 51 | 0.35 | 200 | 1.38 | -40°C | +125°C | Coolant SAE 20R3 |
| 25 | 1 | ZHB25 | 35 | 0.24 | 141 | 0.97 | -40°C | +125°C | Coolant SAE 20R4 |
| 6 | 1/4 | ZHB6F | 50 | 0.34 | 250 | 1.72 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 8 | 5/16 | ZHB8F | 50 | 0.34 | 250 | 1.72 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 10 | 3/8 | ZHB10F | 50 | 0.34 | 250 | 1.72 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 12 | 1/2 | ZHB12F | 35 | 0.24 | 175 | 1.2 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 16 | 5/8 | ZHB16F | 35 | 0.24 | 175 | 1.2 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 19 | 3/4 | ZHB19F | 35 | 0.24 | 175 | 1.2 | -34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 25 | 1 | ZHB25F | 5 | 0.24 | 175 | 1.2 | 34°C | +100°C | Low-Pressure Fuel & Oil Hose SAE 30R6 |
| 6 | 1/4 | ZHB6EFV | Vacuum / Vent Hose | -34°C | +100°C | Emission Control, Fuel Vapour & PCV | |||
| 8 | 5/16 | ZHB8EFV | Vacuum / Vent Hose | -34°C | +100°C | Emission Control, Fuel Vapour & PCV | |||
| 10 | 3/8 | ZHB10EFV | Vacuum / Vent Hose | -34°C | +100°C | Emission Control, Fuel Vapour & PCV | |||
| 12 | 15/32 | ZHB12EFV | Vacuum / Vent Hose | -34°C | +100°C | Emission Control, Fuel Vapour & PCV | |||
U HOSE ™ BENDS
Universal Applications for Water / Coolant
| ID mm | ID In. | Part No. | Height | Centerline Width | Total Width | Maximum Working Pressure | Radiator Hose SAE 20R4 Burst Pressure requirement | ||
|---|---|---|---|---|---|---|---|---|---|
| A | B | C | psi | MPa | Min | Max | |||
| 16 | 5/8” | USH16 | 120mm | 100mm | 125mm | 62 | 0.43 | ||
| 16 - 19 | 5/8 - 3/4” | USH16-19 | 80mm | 68mm | 88mm | 51 | 0.35 | -40°C | +125°C |
| 25 | 1 | USH25 | 140mm | 106mm | 130mm | 35 | 0.24 | ||
| 38 | 1 ½ | USH38 | 145mm | 110mm | 156mm | 30 | 0.21 | ||
| *Note | |||||||||
| ** USH16-19 has 2 different sized ends (16mm and 19mm). | |||||||||
| ** USH16-19 can be used as Heater Core Delete hose on all General Motors L Series V8’s from 1998 onwards. | |||||||||





