Product Details
Auto Parts Constant Temperature Chamber OE 31319493 Thermostat
Assembly for Volvo C30
The Constant Temperature Chamber (also referred to as Thermostat
Assembly, OE Number: 31319493) is a critical engine cooling system
component exclusively engineered for Volvo C30 models. It
integrates a precision thermostat, housing, and sealing gasket into
a single, ready-to-install unit—designed to regulate engine
operating temperature by controlling the flow of coolant between
the engine and radiator.
Constructed with high-grade materials (a durable aluminum or
reinforced plastic housing, a brass/steel thermostat valve, and a
heat-resistant EPDM gasket), this OE-grade assembly balances
thermal stability, corrosion resistance, and leak-proof
performance. Unlike generic aftermarket kits (which often require
separate parts sourcing), this unit matches Volvo’s original design
exactly—ensuring compatibility with the C30’s cooling system and
eliminating the risk of mismatched components that cause
overheating or coolant leaks.
Core Functions
- Engine Temperature Regulation: The thermostat valve inside the
assembly opens and closes based on engine temperature (typically
activating at 82–88°C, Volvo’s factory-specified threshold). When
the engine is cold, the valve stays closed—redirecting coolant to
circulate within the engine block to speed up warm-up (reducing
wear and improving fuel efficiency). Once the engine reaches
optimal temperature, the valve opens—allowing coolant to flow to
the radiator for cooling, preventing overheating.
- Cooling System Sealing: The integrated EPDM gasket creates a
leak-tight seal between the thermostat housing and the engine
block. This prevents coolant leakage (a common issue with worn
gaskets) and maintains consistent system pressure—critical for
efficient heat transfer and avoiding air bubbles in the cooling
system (which cause “hot spots” and overheating).
- Simplified Maintenance: As a pre-assembled unit, it eliminates the
need to source separate thermostats, housings, or gaskets. This
streamlines replacement, reduces installation time, and ensures all
components work in sync (unlike mix-and-match aftermarket parts
that may have incompatible dimensions).
- Corrosion Protection: The housing’s anti-corrosion coating (for
aluminum variants) or chemical-resistant plastic resists
degradation from coolant additives, road salts, and
moisture—extending the assembly’s service life and preventing rust
buildup that clogs the cooling system.
Compatible Vehicles
This thermostat assembly (OE: 31319493) is specifically tailored
for Volvo C30 models, with confirmed compatibility for the
following consolidated years :
| Model | Applicable Years |
|---|
| Volvo C30 | 2010–2011 |
For 100% fitment accuracy, confirm compatibility with your
vehicle’s VIN (Vehicle Identification Number) or Volvo’s official
service manual—this ensures alignment with your C30’s exact engine
variant (e.g., 2.0L or 2.5L turbocharged engines) and cooling
system configuration.
Frequently Asked Questions
Q: How to determine if the bumper bracket needs replacement?
A: Signs of a failing bumper bracket include visible damage or
deformation, misaligned bumper panels, unusual noises from the
front end, or if the bumper appears loose or sagging on one side.
Q: What should be paid attention to when replacing the bumper
bracket?
A: For optimal results, we recommend professional installation. Key
considerations include ensuring proper alignment of all mounting
points, checking for additional damaged components, and verifying
all fasteners are properly torqued to specification.
Why Choose Our Products
- Extensive Industry Experience: 13 years specializing in Volvo auto
parts with precise product matching and technical solutions.
- Quality Assurance: 10-stage quality inspection process including
durability testing, surface roughness analysis, and dimensional
verification.
- Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs
in inventory for fast order fulfillment.
- Strategic Partnerships: Collaborations with 50+ factories including
suppliers to international brands like Bosch and Hella.
Company Profile
Company Profile
Established in Guangzhou China, Womala Auto parts as a
comprehensive company with five branches has engaged in Volvo parts
for more than 10 years.There are hundreds of professional staff
working in our supply department, sales and logistic support
departments.Thanks to the deep cooperation with over 50 factories
including 5 joint-stock companies, we have provided a variety of
reasonable product solutions and reliable market information
constantly to clients around the world over the past ten years.
We always strive to offer customers original for parts, domestic
parts, original factory supporting OEM accessories, Hella, Mareli
,Bosch and other brand accessories that align with customers’
requirements. Our strong inventory capacity and strict product
quality control system can supply right and reliable products
rapidly. Therefore, our products are favored by over 20,000
customers around the world, 30% who are terminal repair shop
clients. The market-tested products have been exported to more than
20 countries in Asia, Africa and America, such as Brazil, Mexico,
Argentina, Philippines, Malaysia, Singapore, Turkey, Egypt, Sweden,
Russia and so on.


There are hundreds of professional staff working in our supply
department, sales and logistic support departments,has engaged in
Volvo parts for more than 10 years.Thanks to the deep cooperation
with over 50 factories including 5 joint-stock companies, we have
provided a variety of reasonable product solutions and reliable
market information constantly to clients around the world over the
past ten years.

We thank our clients for their trust and support in the past years!
Providing customers with all-in-one procurement and service of for
parts is what we keep pursuing. Now we are ready to establish
business relationship with you. Let us work together to make more
and better values. Plase do not hesitate to contact us for more
information.


