1640163010 Toyota CAP SUB-ASSY(FOR WATER OUTLET), Price: 22.34$, Weight: 0.045kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Toyota |
1640163010 |
CAP SUB-ASSY(FOR WATER OUTLET) |
56 |
0.045 |
|
22.34$ |
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
CAP SUB-ASSY(FOR WATER OUTLET)
|
56 |
0.052
|
2-3
|
18.62$
|
Substitutions
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
RADIATOR CAP
|
277 |
0.058
|
2-3
|
9.68$
|
||
| Honda |
RADIATOR CAP
|
130 |
0.058
|
2-3
|
3.79$
|
||
| Century |
RADIATOR CAP SMALL
|
190 |
0.115
|
4-5
|
3.53$
|
||
| HKT |
RADIATOR CAP
|
3791 |
0.054
|
4-5
|
3.32$
|
||
| Hyundai / KIA |
0K20215205
|
CAP ASSY-RADIATOR
|
0 |
0.046
|
-
|
12.50$
|
Not Available |
| Hyundai / KIA |
0K2C615205A
|
CAP ASSY - RADIATOR
|
0 |
0.04
|
-
|
5.74$
|
Not Available |
| SANKEI |
RADIATOR CAP
|
0 |
0.052
|
4-5
|
3.05$
|
Not Available | |
| HKT |
R124
|
RADIATOR CAP SMALL
|
0 |
0.139
|
4-5
|
2.27$
|
Not Available |
Engine Coolant Outlet Cap (Thermostat Housing Cover)
This direct-fit cover seals the water outlet on the cylinder head of many Toyota models. It locks coolant in the correct path, maintains system pressure, and keeps the thermostat housing leak-free. Built to OEM geometry for a tight, repeatable seal during daily heat cycles.
Why you need it
The outlet is the gateway that sends hot coolant to the radiator. A precise cap and gasket keep the circuit closed, stabilize pressure, and prevent air pockets. Without a solid seal, the cooling system can’t hold the designed operating temperature, risking engine stress.
How it works
The cap bolts over the outlet neck and compresses a molded O-ring. Under heat and vibration, the rigid body and elastomer seal maintain clamping force. That ensures steady flow past the thermostat and sensors, giving accurate ECU data and efficient heat transfer.
If it fails ⚠️
Cracks, warpage, or a hardened seal lead to leaks, sweet coolant smell, steam, and low reservoir level. Overheating, weak cabin heat, misfires, or even a warped head can follow. You may notice dried pink/green residue around the housing and longer warm-up times.
Fitment and install tips ✅
Clean the mating surface, replace the O-ring, torque evenly in a crisscross pattern, and bleed air after refill. Use premixed coolant meeting the manufacturer spec. Direct-fit for select Toyota engines; confirm by VIN or engine code before ordering.
Materials & build
High-temp composite or coated alloy with corrosion-safe hardware and molded seal. Designed for leak-free performance and long life across repeated heat cycles. Ideal OEM-grade replacement for cooling system service.