logo
Products
PRODUCTS DETAILS
Home > Products >
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
Products

Isuzu Cars Parts

Isuzu Engine Parts

Isuzu Chassis Parts

ISUZU Truck Parts

VW Car Parts

AUDI Car Parts

QINGLING ISUZU Parts

NISSAN Spare Parts

MITSUBISHI Auto Parts

FUSO Truck Parts

TOYOTA Auto Parts

HINO Truck Parts

HONDA Auto Parts

MAZDA Spare Parts

JAC Spare Parts

JMC Spare Parts

FORD Auto Parts

HYUNDAI Auto Parts

KIA Auto Parts

Other Auto Parts
Contact Us
james@yimiautoparts.com
+86-17820569171
Contact Now
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
  • name
  • name
  • name

OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance

MOQ: 10 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
Toyota Coaster BB42 14B 15B 1HZ Diesel Engine
Construction Material:
OEM-grade Polymer (heat, UV, And Glycol Resistant)
OEM Part Number:
16470-17061
Chassis Codes:
BB42, BB4#, BB5#, BZB40, BZB50, HZB50, RZB40
Engine Compatibility:
14B, 15B, 1HZ Diesel Engines
Mounting Type:
Factory Bracket Mounting Points
Cooling Type:
Engine Coolant Circulation
Carton Dimensions:
30 × 20 × 20 Cm
Net Weight:
1.0-1.2 Kg
Highlight:

Toyota Coaster BB42 coolant reservoir

,

OEM-grade polymer expansion tank

,

UV-resistant coolant reservoir Toyota

Product 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 applications.
Toyota Coaster Coolant Reservoir Expansion Tank 16470-17061
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 Applications
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 Verification Method
Material composition Spectrographic analysis - confirmed to OEM specification
Dimensional accuracy CMM measurement - exact fitment verification
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
Tags: 

Toyota RAV4 headlamp assembly,  

Toyota Starlet cylinder head with warranty,  

Lexus GS350 replacement motor

Recommended Products
Automatic Tensioning Belt Tensioner 16620-30020 Direct OE Replacement for Toyota Hilux Dyna 2KD 1KD Diesel Engines

Automatic Tensioning Belt Tensioner 16620-30020 Direct OE Replacement for Toyota Hilux Dyna 2KD 1KD Diesel Engines

Contact Now
345W 12V DC Radiator Cooling Fan Assembly with 220 mm Diameter for Toyota Yaris P1 1999-2005

345W 12V DC Radiator Cooling Fan Assembly with 220 mm Diameter for Toyota Yaris P1 1999-2005

Contact Now
Radiator Cooling Fan Blade Assembly 360 mm Diameter 5-Blade Design OEM 16361-0D070 for Toyota Corolla Altis 1.6L 1.8L 2003-2007

Radiator Cooling Fan Blade Assembly 360 mm Diameter 5-Blade Design OEM 16361-0D070 for Toyota Corolla Altis 1.6L 1.8L 2003-2007

Contact Now
Corrosion-resistant aluminium alloy oil cooler assembly with plate-type heat exchanger for Toyota 1HZ 4.2L diesel engine OEM specification

Corrosion-resistant aluminium alloy oil cooler assembly with plate-type heat exchanger for Toyota 1HZ 4.2L diesel engine OEM specification

Contact Now
Genuine Toyota OEM Connecting Rod 13201-17010 with 161.50 mm Center-to-Center Length and 29.00 mm Small End Diameter for 1HZ 1PZ Engines

Genuine Toyota OEM Connecting Rod 13201-17010 with 161.50 mm Center-to-Center Length and 29.00 mm Small End Diameter for 1HZ 1PZ Engines

Contact Now
Left Cylinder Head Gasket 11116-31031 For Lexus IS250 4GR-FSE 2.5L V6 Toyota Crown Mark X

Left Cylinder Head Gasket 11116-31031 For Lexus IS250 4GR-FSE 2.5L V6 Toyota Crown Mark X

Contact Now
1KZ-T Alfin Piston Set with 96.00 mm Bore Diameter and Tinned Alfin Anodized Oil-Gallery for Toyota 3.0L Diesel Engine

1KZ-T Alfin Piston Set with 96.00 mm Bore Diameter and Tinned Alfin Anodized Oil-Gallery for Toyota 3.0L Diesel Engine

Contact Now
Products
PRODUCTS DETAILS
Products

Isuzu Cars Parts

Isuzu Engine Parts

Isuzu Chassis Parts

ISUZU Truck Parts

VW Car Parts

AUDI Car Parts

QINGLING ISUZU Parts

NISSAN Spare Parts

MITSUBISHI Auto Parts

FUSO Truck Parts

TOYOTA Auto Parts

HINO Truck Parts

HONDA Auto Parts

MAZDA Spare Parts

JAC Spare Parts

JMC Spare Parts

FORD Auto Parts

HYUNDAI Auto Parts

KIA Auto Parts

Other Auto Parts
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
  • name
  • name
  • name
OEM-Grade Polymer Coolant Reservoir Expansion Tank for Toyota Coaster BB42 with Heat, UV, and Glycol Resistance
MOQ: 10 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
Toyota Coaster BB42 14B 15B 1HZ Diesel Engine
Construction Material:
OEM-grade Polymer (heat, UV, And Glycol Resistant)
OEM Part Number:
16470-17061
Chassis Codes:
BB42, BB4#, BB5#, BZB40, BZB50, HZB50, RZB40
Engine Compatibility:
14B, 15B, 1HZ Diesel Engines
Mounting Type:
Factory Bracket Mounting Points
Cooling Type:
Engine Coolant Circulation
Carton Dimensions:
30 × 20 × 20 Cm
Net Weight:
1.0-1.2 Kg
Minimum Order Quantity:
10 pcs
Price:
Negotiable
Packaging Details:
Neutral Package or as customers’ request
Delivery Time:
5-8 Work Days
Payment Terms:
T/T,Western Union
Supply Ability:
10000 pcs/month
Highlight

Toyota Coaster BB42 coolant reservoir

,

OEM-grade polymer expansion tank

,

UV-resistant coolant reservoir Toyota

Product 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 applications.
Toyota Coaster Coolant Reservoir Expansion Tank 16470-17061
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 Applications
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 Verification Method
Material composition Spectrographic analysis - confirmed to OEM specification
Dimensional accuracy CMM measurement - exact fitment verification
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
Tags: 

Toyota RAV4 headlamp assembly,

Toyota Starlet cylinder head with warranty,

Lexus GS350 replacement motor

Yimi (Guangzhou) Automotive Parts Co, Ltd
4F, 7th, No. 2, South Jinguu Road, Huadong Town, Huadu District, Guangzhou City
Tel: +86-17820569171
Sitemap |  Privacy Policy | China Good Quality Isuzu Cars Parts Supplier. Copyright © 2024-2026 Yimi (Guangzhou) Automotive Parts Co, Ltd . All Rights Reserved.