Mazda 5 Reservoir Tank for Sale | HDPE Coolant Expansion Tank
$75.00
At a Glance
- Condition: OEM used, tank body integrity inspected, fill neck condition verified, mounting features assessed, cap threads checked
- Availability: In stock for Mazda 5 applications
- Shipping: Free shipping to all 50 states, 3 to 7 business days
- Application: Mazda 5 – Mazda’s discontinued compact minivan with sliding side doors
- HDPE construction: High-Density Polyethylene coolant expansion tank material – standard automotive expansion tank material with good chemical resistance and impact resistance
- Coolant expansion tank function: Provides expansion volume for engine coolant thermal expansion during operating temperature changes
- Discontinued in US market 2015: The Mazda 5 was discontinued from US market production after 2015 as compact minivan segment weakened
- Unique positioning: Mazda 5 was one of few compact minivans in the US market featuring sliding side doors (typical of larger minivans) in a compact vehicle format
- Related Mazda listings: See our Mazda 3 water pump, CX-30 front bumper cover, MX-3 dashboard, MX-6 center console listings
- 15 day replacement warranty on component defects
Description
About the Mazda 5 Reservoir Tank
Need a replacement Mazda 5 coolant reservoir tank (HDPE expansion tank)? Part Nests sources OEM used coolant expansion reservoir tanks for Mazda 5 applications. The Mazda 5 is Mazda’s discontinued compact minivan – unique for offering sliding side doors (typical of larger minivans) in a compact vehicle format. Discontinued from US market production after 2015. HDPE (High-Density Polyethylene) construction with tank body integrity inspection. Each tank is inspected for body integrity, fill neck condition, mounting features, and cap threads. Call (855) 634-4447 to verify Mazda 5 year before ordering.
What Is Included and Not Included
| Detail | Description |
|---|---|
| INCLUDED | The reservoir tank with molded mounting tabs and the plugged sensor port. |
| NOT INCLUDED | The pressure cap (any OEM or aftermarket 15 psi cap fits, per the live FAQ), hoses, clamps, sensor, and coolant. |
| Tools You Need | Basic hand tools and a drain pan; the live page’s under-30-minutes estimate holds for most driveway installs. |
Mazda 5 Vehicle Context
- Discontinued compact minivan: The Mazda 5 was Mazda’s compact minivan discontinued from US market production after 2015. Produced across multiple generations providing compact minivan positioning in Mazda’s US market lineup. Unique positioning as one of few compact minivans in the US market featuring sliding side doors (typical of larger minivans) in a compact vehicle format
- US market discontinuation (2015): The Mazda 5 was discontinued from US market production after 2015 as the compact minivan segment weakened in the US market. Various compact minivans exited the US market during the era as compact crossover vehicles displaced compact minivans in many family vehicle applications. Reflects broader industry shift from compact minivan to compact crossover positioning
- Sliding side doors feature: The Mazda 5 offered sliding side doors – typical of larger minivans but unusual in a compact vehicle format. Sliding side doors provide practical benefits for tight parking situations, child seat access, and general convenience. Distinctive feature that differentiated the Mazda 5 from typical compact family vehicles
- Seven-passenger capacity: Various Mazda 5 configurations offered seven-passenger capacity through three-row seating in the compact minivan format. Compact overall vehicle dimensions with maximized interior packaging for three-row seating capability. Practical family transportation in a compact vehicle format
- Global market presence: The Mazda 5 continued in various international markets beyond the US market discontinuation. Reflects the different compact minivan market dynamics in different global markets – some international markets continued to support compact minivan sales beyond US market discontinuation
Mazda Vehicle Lineup Context
- Related Mazda listings: Related Mazda applications include the Mazda 3 compact sedan / hatchback (see our related Mazda 3 water pump listing), Mazda CX-30 compact crossover (see our related Mazda CX-30 front bumper cover listing), Mazda MX-3 classic subcompact sport coupe (see our related Mazda MX-3 dashboard listing), and Mazda MX-6 classic sport coupe (see our related Mazda MX-6 center console listing)
- Mazda family vehicles: Current Mazda family vehicle lineup emphasizes crossover vehicles (CX-30, CX-5, CX-9, CX-50, CX-90) rather than compact minivans. Reflects the broader industry shift from compact minivan positioning to compact / mid-size / three-row crossover positioning for family vehicle applications. Modern Mazda family vehicle applications typically use crossover architecture
Reservoir Tank Specifications
- Type: OEM used coolant expansion reservoir tank for Mazda 5
- Function: Coolant expansion tank provides expansion volume for engine coolant thermal expansion during operating temperature changes. Cooling system pressure regulation through the pressure cap. Coolant level monitoring through visible level markings on translucent tank body. Coolant fill point for cooling system service
- Construction: High-Density Polyethylene (HDPE) tank body with fill neck / pressure cap interface at top, coolant level markings on tank body (typically minimum / maximum level indicators), inlet / outlet fittings for cooling system integration, and mounting features for engine bay attachment. HDPE is standard automotive expansion tank material with good chemical resistance to coolants and good impact resistance
- Common failure modes: Tank body cracking (often at mounting features, seams, or fittings – HDPE can develop stress cracks over time particularly at stress concentration locations), fill neck / pressure cap thread damage (from repeated cap removal / installation over years of service), fitting damage (from coolant line stress or improper coolant line installation), mounting feature failure. Symptoms include external coolant leak at tank body, unable to hold pressure cap securely, and mounting looseness
- Testing: Tank body integrity inspected, fill neck condition verified, mounting features assessed, cap threads checked before shipment
Vehicle Compatibility
| Detail | Description |
|---|---|
| Mazda 5 (2006 to 2015) | Per the live page, both US generations, year matched at order |
| First generation (2006 to 2010) | Direct application, donor generation |
| Second generation (2012 to 2015) | Confirmed against your year before shipping |
| Donor Reference | 2006 Mazda 5 |
Related Mazda Listings
- Mazda 3 Water Pump: Modern compact – see our Mazda 3 water pump listing
- Mazda CX-30 Front Bumper Cover: Modern compact crossover – see our CX-30 front bumper cover listing
- Mazda MX-3 Dashboard: Classic subcompact sport coupe – see our MX-3 dashboard listing
- Mazda MX-6 Center Console: Classic sport coupe – see our MX-6 center console listing
Why Buy From Part Nests
- OEM verified coolant expansion reservoir tank for Mazda 5
- Tank body integrity inspected, fill neck condition verified, mounting features assessed, cap threads checked
- Support for Mazda’s discontinued compact minivan with distinctive sliding side doors
- Free shipping to all 50 states
- 15 day replacement warranty on component defects
- Support team familiar with Mazda 5 heritage and compact minivan segment context
- Call (855) 634-4447 to confirm your Mazda 5 year before ordering.
15 Day Replacement Warranty
Every used Mazda 5 Reservoir Tank carries a 15 day replacement warranty starting on the delivery date. Call (855) 634-4447 to start a warranty claim within 15 days of delivery.
What Is Covered
- Component defects present on arrival beyond what was disclosed
- Tank body or fill neck failures within 15 days from installation
- Mounting feature failures not disclosed at sale
- Incorrect part shipped due to an error on our end
What Is Not Covered
- Damage caused during installation
- Cross-year installation without verification
- Damage from over-pressurization or improper pressure cap installation
- Labor expenses of any kind, including cooling system service labor
- Part: OEM used coolant expansion reservoir tank (HDPE construction)
- Application: Mazda 5 (US market discontinued 2015)
- Segment: Compact minivan with sliding side doors
- Distinctive Feature: Sliding side doors in compact vehicle format
- Capacity: Various configurations up to seven-passenger three-row seating
- Material: HDPE - good chemical and impact resistance
- Global Presence: Continued in international markets beyond US discontinuation
- Related Mazda: Mazda 3, CX-30, MX-3, MX-6
Additional information
| Brand | Mazda |
|---|---|
| Material | High-density polyethylene (HDPE) |
| Coolant Type | FL22 or compatible ethylene glycol-based coolant |
| Fill Neck Diameter | 34 mm |
| Tank Volume | 1.0-1.25 quarts |
| Weight (empty) | 0.8-1.2 lbs |
| Application | Mazda 5 2006 to 2015, reference donor 2006 |
| SKU | vaz644 |
| Price | $75.00 |
An OEM used coolant expansion reservoir tank for Mazda 5 applications. High-Density Polyethylene (HDPE) tank body with fill neck / pressure cap interface at top, coolant level markings on tank body, inlet / outlet fittings for cooling system integration, and mounting features for engine bay attachment. Function is providing expansion volume for engine coolant thermal expansion during operating temperature changes with cooling system pressure regulation through the pressure cap.
Mazda's discontinued compact minivan produced across multiple generations providing compact minivan positioning in Mazda's US market lineup. Unique positioning as one of few compact minivans in the US market featuring sliding side doors (typical of larger minivans) in a compact vehicle format. Discontinued from US market production after 2015 as the compact minivan segment weakened in the US market.
The Mazda 5 was discontinued from US market production after 2015 as the compact minivan segment weakened in the US market. Various compact minivans exited the US market during the era as compact crossover vehicles displaced compact minivans in many family vehicle applications. Reflects broader industry shift from compact minivan to compact crossover positioning. Modern Mazda family vehicle lineup emphasizes crossover vehicles rather than compact minivans.
The Mazda 5 offered sliding side doors - typical of larger minivans but unusual in a compact vehicle format. Sliding side doors provide practical benefits for tight parking situations, child seat access, and general convenience. Distinctive feature that differentiated the Mazda 5 from typical compact family vehicles. Sliding doors are appreciated for their space-efficient operation in tight parking situations.
High-Density Polyethylene (HDPE) is standard automotive expansion tank material with good chemical resistance to coolants and good impact resistance. Common material for coolant expansion tanks across the automotive industry. Provides the appropriate combination of chemical compatibility with coolants (both traditional ethylene glycol and modern extended-life coolants), thermal stability at cooling system temperatures, and impact resistance for engine bay applications.
Various Mazda 5 configurations offered seven-passenger capacity through three-row seating in the compact minivan format. Compact overall vehicle dimensions with maximized interior packaging for three-row seating capability. Practical family transportation in a compact vehicle format. Reservoir tank capacity and cooling system requirements varied across the Mazda 5 model years and engine configurations.
Yes. The Mazda 5 continued in various international markets beyond the US market discontinuation. Reflects the different compact minivan market dynamics in different global markets - some international markets continued to support compact minivan sales beyond US market discontinuation. Modern Mazda family vehicles in the US market emphasize crossover applications (CX-30, CX-5, CX-9, CX-50, CX-90) rather than compact minivan positioning.
Tank body cracking (often at mounting features, seams, or fittings - HDPE can develop stress cracks over time particularly at stress concentration locations). Fill neck / pressure cap thread damage (from repeated cap removal / installation over years of service). Fitting damage (from coolant line stress or improper coolant line installation). Mounting feature failure. Symptoms include external coolant leak at tank body, unable to hold pressure cap securely, and mounting looseness.
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