The 55717 Thermostat, coolant is a AIC thermostat listed under our
Thermostat category at
CG Auto Parts Shop. Every listing includes a full manufacturer cross-reference
table so you can confirm fitment by part number before you order.
55717 Thermostat, coolant — function and selection
The thermostat is a wax-element valve that remains closed when the engine is cold, blocking coolant flow to the radiator and allowing the engine to reach operating temperature quickly. Once the coolant temperature reaches the thermostat’s calibrated opening point, the wax pellet expands, opening the valve and allowing flow to the radiator. A failed-open thermostat keeps the engine perpetually cold; a failed-closed thermostat causes rapid overheating.
Signs You Need a Replacement
An engine that takes unusually long to reach operating temperature, or that never reaches it, points to a stuck-open thermostat. A rapid temperature rise to the red zone on cold startup, or persistent overheating with no other obvious cause, indicates a stuck-closed unit.
Brand & Manufacturing Authority
This thermostat is manufactured by AIC, a recognised supplier
to the automotive aftermarket. The part number 55717 identifies this specific
unit in the manufacturer’s own catalog. It is supplied new — not remanufactured — and is backed by our
warranty policy.
Material & Construction
Built from wax-element actuator housed in a stamped steel or plastic body with a return spring and seat gasket, matched to the engine’s specified opening temperature. This construction is chosen to match or exceed the OE
specification it replaces under the same load, temperature, and service conditions.
Fitment Confidence
Year-make-model filters alone can miss mid-year production changes that affect fitment. The safest
method is to match the part number stamped on your existing thermostat against the
cross-reference table below. If you can’t locate your existing part number, send your vehicle VIN
through our contact page and we’ll confirm before you order.
Product Specifications
| Part Number (SKU) | 55717 |
| Part Type | Thermostat |
| Brand | AIC |
| Condition | New |
| Category | Cooling System > Thermostat |
Cross-Reference Compatibility Table
Match your existing part number against this table before ordering. All data is drawn directly
from the manufacturer’s own cross-reference documentation.
| Brand / Manufacturer | Part Number(s) |
|---|---|
| 3RG | 82236 |
| A.Z. Meisterteile | AZMT-46-040-2494 |
| ABAKUS | 038-025-0006 |
| AIC | 55717 |
| ASHIKA | 38-MN-MN01 |
| ATECSO | TRM00166 |
| AUTOMOTOR France | PTH1153 |
| Autostar Germany | 2915489 |
| AUTOTEAM | M4775 |
| AVA | AUTS002 |
| Alfa e-Parts | AF08054 |
| Aslyx | AS-503942 |
| BAPMIC | TOPT1206021 |
| BBR Automotive | 001-10-21468 |
| BGA | CT5648 |
| BIRTH | 80004 |
| BMW | 11538699290, 11537534521 |
| BOGAP | B4245100 |
| BORG and BECK | BBT477 |
| BSG | 15-125-004 |
| CALORSTAT by Vernet | TE7136.105J |
| CAUTEX | 955466 |
| CITROEN / PEUGEOT | 1336.Z6, 98109, 16980 |
| CONTINENTAL | 28.0200-4078.2 |
| CSV electronic parts | CTH2775 |
| DAYCO | DT1087H |
| DENSO | DTM105678 |
| DIAMAX | AD02034 |
| DIPASPORT | TRM172DNSN |
| DOLZ | THB008 |
| Dr!ve+ | DP2310.14.0689 |
| EPS | 1.880.927 |
| ERA | 350563A |
| ESEN SKV | 20SKV070 |
| FACET | 7.8927 |
| FARE SA | 15384 |
| FAST | FT58015 |
| FEBI BILSTEIN | 103197 |
| FISPA | 94.775 |
| FREY | 823122201 |
| GATES | TH531105G1 |
| GGT | TMPA008 |
| GK | 701024 |
| GOOM | THE-0029 |
| HEPU | TM1024 |
| HERTH+BUSS ELPARTS | 70511025 |
| HOFFER | 8192775 |
| IAP QUALITY PARTS | 155-51000 |
| JAPANPARTS | VT-MN01 |
| JAPKO | 38MN01 |
| JDEUS | TH0210005 |
| JP GROUP | 6014500100 |
| JPN | 20C9038-JPN |
| KW | 580 927 |
| MAGNETI MARELLI | 352317001050 |
| MAHLE | TM 57 105 |
| MAPCO | 28127 |
| MASTER-SPORT GERMANY | 653713605 |
| MATRIX PRO | MX01200033 |
| MAXGEAR | 18-0514 |
| MEAT and DORIA | 92775 |
| METZGER | 4006178 |
| MINI | 11538699290, 11537534521 |
| MOTAQUIP | LVTK200 |
| MOTORAD | 678-105 |
| MTE-THOMSON | VT633.105 |
| MTR | 12164441 |
| Metalcaucho | 02232 |
| NANFENG | NF0322 |
| NPS | P153A01 |
| NRF | 725293 |
| NTY | CTM-CT-002 |
| OPEN PARTS | TRM1070.00 |
| ORIGINAL IMPERIUM | 90749 |
| OSSCA | 19245 |
| PLYOM | P771439 |
| PREXAparts | P150399 |
| QUINTON HAZELL | QTH665K |
| RED-LINE | 55PE000 |
| RIDEX | 316T0121 |
| SASIC | 3300004 |
| SCHNIEDER AUTOTECH | MCS77.00050 |
| SIDAT | 94.775?94.869 |
| STC | T402232?T430636 |
| STELLOX | 23-40129-SX |
| SWAG | 11 10 3197 |
| SenCom | 503013 |
| TOPRAN | 502 375 |
| TRICLO | 461809 |
| TRISCAN | 8620 298105 |
| VEMA | 13980 |
| VEMO | V20-99-0174 |
Installation & Safety Notes
Always replace the housing gasket or O-ring. Bleed the cooling system after installation to purge air pockets that would cause localised overheating. Always follow your vehicle manufacturer’s torque specifications and service
manual procedure. For the engineering standards that govern this part category, see the
SAE International cooling system standards.
Quality Assurance
We verify every listing’s cross-reference data against the manufacturer’s own catalog before
publishing. We sell AIC parts because the brand has a documented track record in the
thermostat category. If a part number doesn’t match your vehicle after
checking the table above, contact us and we’ll find the correct one.
Shipping, Returns & Warranty
Orders ship from our US warehouse. Delivery windows are on our
shipping policy page. If a part arrives damaged or doesn’t fit,
the return and claim process is in our terms of service and
warranty policy. Questions?
Contact us any time.
Why Buy From CG Auto Parts Shop
- Genuine AIC part, cross-referenced by manufacturer part number
- New condition — never remanufactured or reconditioned
- Backed by our warranty policy
- Fast US shipping — see shipping policy for timelines
- Fitment support — contact us with your VIN before ordering
- Transparent part numbers — no guesswork, no hidden cross-brand substitutions
Related Products in This Category
Browse more Thermostat parts, or explore the
full shop. More parts in this category include:
- CT0922 Thermostat, coolant (SKU CT0922)
- BBT389 Thermostat, coolant (SKU BBT389)
- 464.650 Gasket, Thermostat (SKU 464.65)
- A4245180 Thermostat, coolant (SKU A4245180)
Choosing the Right Thermostat — A Buyer’s Guide
Shopping for a thermostat by part number rather than by vehicle
model alone is the most reliable way to avoid a fitment mismatch. A year-make-model filter is a
starting point, but the same vehicle model can use different component specifications depending on
trim level, engine variant, and production date. The cross-reference table above is built from
the manufacturer’s own part-number data, which means the relationship between this part and the
vehicle application is confirmed at the component level rather than inferred from model data.
When you receive the new thermostat, compare it physically against
the old part before installation — check overall dimensions, mounting hole positions, and connector
orientation. A direct visual comparison catches any discrepancy before time is invested in
disassembly. If anything doesn’t match despite the part number confirming correctly, contact us
before installing, since we can usually resolve fitment questions the same day.
We source our AIC parts directly through authorised supply
channels to ensure you receive the genuine part that the cross-reference table confirms. Aftermarket
quality varies enormously by brand; listing the actual manufacturer — rather than a generic
“compatible with” label — is how we give you the information needed to make a confident buying
decision. The About Us page explains our approach to sourcing and
part-number verification in more detail.
After Installation — What to Check
Once the new thermostat is fitted and torqued to specification,
a brief test drive under controlled conditions is the best way to confirm the repair is successful
before returning the vehicle to normal use. Listen for any new noises from the affected area at low
speed over a rough surface, and confirm that the system behaviour feels correct. For suspension and
steering components, a wheel alignment check immediately after installation is strongly recommended,
since even a correctly fitted new part can require alignment correction compared to the worn part
it replaced. For braking components, a proper bed-in procedure — a series of graduated stops from
road speed — transfers an even layer of friction material and settles the new components before
maximum braking loads are applied.
Keep the installation date and part number noted in your service records. This information is
required if a warranty claim becomes necessary, and it makes future parts sourcing straightforward
since you’ll have a confirmed part number on file. Our warranty
policy page specifies the documentation needed to support a claim.
Frequently Asked Questions
Will this part fit my vehicle?
Match the part number on your existing thermostat against the
cross-reference table on this page. If you’re unsure, send your VIN through our
contact page.
What brand is this part?
This is a AIC part, confirmed by matching SKU
55717 in the manufacturer’s cross-reference data.
Is this a new part or remanufactured?
New condition. All parts in our shop are new — no remanufactured
or reconditioned units.
How long does shipping take?
See our shipping policy for current carrier options and
delivery windows from our US warehouse.
What warranty does this part carry?
Coverage terms are detailed on our warranty policy page.
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