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OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
Specifications
Payment Terms :
T/T,
Carton dimensions :
30 × 20 × 20 cm
Model Number :
Toyota Coaster BB42 14B 15B 1HZ Diesel Engine
OEM Part Number :
16470-17061
Certifiion :
ISO/TS16949
Chassis Codes :
BB42, BB4#, BB5#, BZB40, BZB50, HZB50, RZB40
MOQ :
10 pcs
Delivery Time :
5-8 Work Days
Mounting type :
Factory bracket mounting points
Price :
Negotiable
Cooling Type :
Engine coolant circulation
Place of Origin :
China
Engine Compatibility :
14B, 15B, 1HZ diesel engines
Supply Ability :
10000 pcs/month
Net weight :
1.0-1.2 kg
Brand Name :
YIMI
Construction material :
OEM-grade polymer (heat, UV, and glycol resistant)
Packaging Details :
Neutral Package or as customers’ request
Description
Coolant Reservoir Expansion Tank 16470-17061 For Toyota Coaster BB42 14B 15B 1HZ Diesel Engine
Direct OEM replacement coolant reservoir expansion tank with part number 16470-17061 for Toyota Coaster buses equipped with 14B, 15B, and 1HZ diesel engines.
Product Overview
This coolant reservoir expansion tank stores engine coolant overflow from the radiator during thermal expansion and returns it to the system as the engine cools. Essential for maintaining proper cooling system function in demanding bus appliions.
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
Part Number: 16470-17061 Product Name: Coolant Reservoir Expansion Tank
Car Model: Toyota Coaster BB42 Engine Model: Toyota 14B 15B 1HZ
Condition: 100% Brand New Origin: China Mainland
Material: High-strength polymer Installation: Direct OEM replacement
Vehicle Appliions
Direct replacement for Toyota Coaster buses with the following configurations:
Chassis Engine Years / Notes
BB4# (including BB42) 14B, 15B 1990s-2000s diesel variants
BB5# 14B, 15B Later production
BZB40, BZB50 15BFT, 1BZFPE Coaster bus
HZB50 1HZ 4.2L diesel variant
RZB40 2TR, other petrol variants Coaster bus
Common Failure Symptoms
  • Cracking at seams - Plastic becomes brittle after years of heat cycling
  • Cracked hose fittings - Causes slow coolant loss
  • Cap seal failure - Allows system pressure loss, reducing coolant boiling point
  • Internal contamination - Sludge buildup from old coolant
Symptom Diagnosis
Coolant puddle under engine bay Cracked expansion tank - inspect for visible cracks
Persistent low coolant level Slow leak from cracked tank or hose fitting
Engine temperature rising on climbs Insufficient coolant in system
Visible cracks or brittleness Plastic degradation - replacement required
Features & Benefits
  • Direct OE Replacement - Exact Toyota part number 16470-17061, direct bolt-on installation
  • OEM-Grade Polymer Construction - Heat-, UV-, and glycol-resistant material
  • Translucent Body - Easy coolant level checking against MIN/MAX marks
  • Comprehensive Coverage - One part fits multiple Coaster chassis configurations
  • Restores System Integrity - Maintains proper pressure balance in cooling loop
  • Prevents Component Damage - Protects water pump, hoses, and cylinder head gasket
Quality Control
QC Item Verifiion Method
Material composition Spectrographic analysis - confirmed to OEM specifiion
Dimensional accuracy CMM measurement - exact fitment verifiion
Pressure integrity Pressure tested at 1.5 bar - zero leakage
Thermal cycling Sample tested from -30°C to +120°C
Visual inspection 100% - no voids, cracks, or defects
IMPORTANT SAFETY NOTE:
Never remove the reservoir cap or open the cooling system while the engine is hot. The pressurized system can release hot coolant or steam causing serious burns.
Installation & Maintenance
Recommended Replacement Interval: 150,000-200,000 km or 10-15 years of service
Service Item Interval
Check coolant level in expansion tank Daily (walk-around inspection)
Inspect expansion tank for cracks or leaks Every service interval (10,000-20,000 km)
Replace engine coolant Every 2-3 years or 40,000-60,000 km
Packaging & Supply
  • Individual packaging: Protective foam-lined carton
  • Master carton: 20 units per export carton
  • Lead time: 3-7 working days for stock orders
  • Minimum order: 1 piece (sample available)
  • Shipping: FedEx, UPS, DHL for samples; sea freight for bulk
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OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance

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Product Detail
Payment Terms :
T/T,
Carton dimensions :
30 × 20 × 20 cm
Model Number :
Toyota Coaster BB42 14B 15B 1HZ Diesel Engine
OEM Part Number :
16470-17061
Certifiion :
ISO/TS16949
Chassis Codes :
BB42, BB4#, BB5#, BZB40, BZB50, HZB50, RZB40
Contact Supplier
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance

Yimi (Guangzhou) Automotive Parts Co, Ltd

Verified Supplier
3 Years
guangzhou
Since 2005
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company, Seller
Main Products :
Isuzu Cars Parts, Isuzu Engine Parts, Isuzu Chassis Parts
Total Annual :
8000000-10000000
Employee Number :
100~150
Certification Level :
Verified Supplier
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