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Radiator Cap
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OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-PAA-A01$14.11 MSRP:$19.92You Save: $5.81 (30%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 8.3 x 8.4 x 8.2 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Replaces: 19045-P08-004, 19045-P08-013, 19045-P08-003, 19045-PY3-013, 19045-P08-014, 19045-PY3-003
- Part Description: Cap, Radiator (Denso)
$29.48Product Specifications- Cap Depth: 1.5 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 1.41 in
- Filler Neck Inside Diameter: 1.53 in
- Filler Neck Outside Diameter: 1.97 in
- OE Comparison Rating: OE Performance
- Pressure Rating: 17 psi
- SAE Pressure Range: 15-18 psi
- Shell Diameter: 2.48 in
- UPC: 072053844245
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap, Reserve Tank
PartNumber: 19102-PM5-A00$2.08 MSRP:$2.92You Save: $0.84 (29%)Product Specifications- Other Names: Cap, Recovery Tank Cap, Reservoir Cap
- Item Dimensions: 2.1 x 2.1 x 0.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap, Reserve Tank
$15.76Product Specifications- Cap Depth: 0.98 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 41 mm
- Filler Neck Inside Diameter: 1.16 in
- Filler Neck Outside Diameter: 2.14 in
- OE Comparison Rating: OE Performance
- Pressure Rating: 30 psi
- SAE Pressure Range: 28-30 psi
- Shell Diameter: 66 mm
- UPC: 072053446715
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap, Reserve Tank
PartNumber: 19102-PM5-A00$2.08 MSRP:$2.92You Save: $0.84 (29%)Product Specifications- Other Names: Cap, Recovery Tank Cap, Reservoir Cap
- Item Dimensions: 2.1 x 2.1 x 0.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap, Reserve Tank
$12.23Product Specifications- Cap Depth: 0.8 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 32 mm
- Filler Neck Inside Diameter: 38 mm
- Filler Neck Outside Diameter: 2.07 in
- OE Comparison Rating: OE Performance
- Pressure Rating: 15 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 2.46 in
- UPC: 770075352044
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-RAA-003$22.52 MSRP:$31.82You Save: $9.30 (30%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 2.8 x 1.5 x 1.0 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap, Radiator (Denso)
$12.18Product Specifications- Cap Depth: 0.31 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 10 mm
- Filler Neck Inside Diameter: 33 mm
- Filler Neck Outside Diameter: 45 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 22 psi
- SAE Pressure Range: 18-22 psi
- Shell Diameter: 2.98 in
- UPC: 072053446685
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-RAA-003$22.61 MSRP:$31.82You Save: $9.21 (29%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 2.8 x 1.5 x 1.0 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap, Radiator (Denso)
$9.10Product Specifications- Cap Depth: 0.81 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 10 mm
- Filler Neck Inside Diameter: 32 mm
- Filler Neck Outside Diameter: 43 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 13 psi
- SAE Pressure Range: 12-16 psi
- Shell Diameter: 2.52 in
- UPC: 072053407976
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-PAA-A01$14.17 MSRP:$19.92You Save: $5.75 (29%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 8.3 x 8.4 x 8.2 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Replaces: 19045-P08-004, 19045-P08-013, 19045-P08-003, 19045-PY3-013, 19045-P08-014, 19045-PY3-003
- Part Description: Cap, Radiator (Denso)
$8.56Product Specifications- Cap Depth: 0.81 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 10 mm
- Filler Neck Inside Diameter: 32 mm
- Filler Neck Outside Diameter: 43 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 16 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 2.52 in
- UPC: 072053407983
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Reservoir Cap
PartNumber: 9C3Z-8101-B$6.57 MSRP:$10.45You Save: $3.88 (38%)Product Specifications- Other Names: Cap, Radiator Cap, Reservoir Cap
- Item Dimensions: 6.2 x 4.1 x 4.2 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 9C3Z-8101-A, 8C3Z-8101-A, F6ZZ-8100-A, RS-103, F3LY-8100-A, XL3Z-8100-AA, RS-517
- Part Description: Reservoir Cap
$8.18Product Specifications- Cap Depth: 1.06 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 16 mm
- Filler Neck Inside Diameter: 32 mm
- Filler Neck Outside Diameter: 43 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 13 psi
- SAE Pressure Range: 12-16 psi
- Shell Diameter: 2.59 in
- UPC: 072053020083
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Cap
PartNumber: 16401-63010$19.17 MSRP:$27.60You Save: $8.43 (31%)Product Specifications- Item Dimensions: 2.9 x 2.9 x 2.9 inches
- Item Weight: 0.60 Pounds
- Part Description: Cap
$8.18Product Specifications- Cap Depth: 1.06 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 16 mm
- Filler Neck Inside Diameter: 32 mm
- Filler Neck Outside Diameter: 43 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 16 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 66 mm
- UPC: 072053416084
- Part Description: Engine Coolant Replacement Radiator Cap
$15.91 MSRP:$22.91You Save: $7.00 (31%)Product Specifications- Other Names: Cap
- Item Dimensions: 2.8 x 2.2 x 1.5 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 16401-02421, 16401-28280, 16401-28430
- Part Description: Radiator Assembly Mount Bolt
OEM (Genuine) Cap-Reservoir Tank
PartNumber: 21712-79900$15.89 MSRP:$21.70You Save: $5.81 (27%)Product Specifications- Other Names: Cap, Reservoir Cap, Strainer
- Item Dimensions: 1.5 x 1.5 x 0.4 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 21712-3NA0A
- Part Description: Cap-Reservoir Tank
OEM (Genuine) Cap Assy-Filler
PartNumber: 21430-C991A$27.96 MSRP:$38.22You Save: $10.26 (27%)Product Specifications- Other Names: Cap, Radiator Cap, Reservoir Cap
- Item Dimensions: 2.1 x 2.1 x 0.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap Assy-Filler
$8.22Product Specifications- Cap Depth: 0.75 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 0.75 in
- Filler Neck Inside Diameter: 1.31 in
- Filler Neck Outside Diameter: 49 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 20 psi
- SAE Pressure Range: 18-22 psi
- Shell Diameter: 3.29 in
- UPC: 770075225713
- Part Description: Engine Coolant Replacement Radiator Cap
- $171.87 MSRP:
$215.23You Save: $43.36 (21%)Product Specifications- Other Names: Radiator Cap, Reservoir Tank
- Item Weight: 1.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: 17-11-2-226-945, 17-11-2-226-340, 17-11-2-226-688
- Part Description: Coolant Expansion Tank
$7.65Product Specifications- Cap Depth: 1.5 in
- Coolant Recovery System: Optional System
- Filler Neck Depth: 0.75 in
- Filler Neck Inside Diameter: 1.61 in
- Filler Neck Outside Diameter: 2.13 in
- OE Part Number: 50237
- Pressure Rating: 16 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 2.61 in
- UPC: 072053020458
- Part Description: Engine Coolant Safety Release Radiator Cap
OEM (Genuine) Cap Assembly-Radiator
PartNumber: 21430-1P107$24.04 MSRP:$32.85You Save: $8.81 (27%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 6.8 x 4.7 x 2.5 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap Assembly-Radiator
$8.78Product Specifications- Cap Depth: 1.41 in
- Coolant Recovery System: Optional System
- Filler Neck Depth: 16 mm
- Filler Neck Inside Diameter: 1.61 in
- Filler Neck Outside Diameter: 43 mm
- Pressure Rating: 16 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 2.2 in
- UPC: 072053638967
- Part Description: Engine Coolant Safety Release Radiator Cap
OEM (Genuine) Cap, Radiator (Toyo)
PartNumber: 19045-PWA-004$17.21 MSRP:$24.30You Save: $7.09 (30%)Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 2.6 x 1.8 x 0.8 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Replaces: 19045-PNC-004
- Part Description: Cap, Radiator (Toyo)
$7.17Product Specifications- Cap Depth: 1.5 in
- Coolant Recovery System: Optional System
- Filler Neck Depth: 0.75 in
- Filler Neck Inside Diameter: 1.61 in
- Filler Neck Outside Diameter: 2.13 in
- Pressure Rating: 16 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 2.61 in
- UPC: 072053114898
- Part Description: Engine Coolant Safety Release Radiator Cap
$6.78 MSRP:$9.57You Save: $2.79 (30%)Product Specifications- Other Names: Cover, Radiator Cap Cover
- Item Dimensions: 3.4 x 2.1 x 1.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cover, Radiator Cap (Denso)
$7.46Product Specifications- Cap Depth: 0.74 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 0.74 in
- Filler Neck Inside Diameter: 50 mm
- Filler Neck Outside Diameter: 2.28 in
- OE Comparison Rating: OE Performance
- Pressure Rating: 20 psi
- SAE Pressure Range: 18-22 psi
- Shell Diameter: 3.11 in
- UPC: 072053446678
- Part Description: Engine Coolant Replacement Radiator Cap
OEM (Genuine) Radiator Cap
PartNumber: 16401-54750$14.55 MSRP:$20.94You Save: $6.39 (31%)Product Specifications- Item Dimensions: 2.8 x 2.9 x 2.9 inches
- Item Weight: 0.60 Pounds
- Replaces: 16401-71010
- Part Description: Radiator Cap
$7.44Product Specifications- Cap Depth: 0.75 in
- Coolant Recovery System: Closed System
- Filler Neck Depth: 0.75 in
- Filler Neck Inside Diameter: 1.31 in
- Filler Neck Outside Diameter: 51 mm
- OE Comparison Rating: OE Performance
- Pressure Rating: 15 psi
- SAE Pressure Range: 14-18 psi
- Shell Diameter: 3.3 in
- UPC: 072053134216
- Part Description: Engine Coolant Replacement Radiator Cap
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Next >About Radiator Cap
The radiator cap is vital to the vehicle as it seals the radiator and maintains the pressure. The cap can withstand a pressure ranging around 16 PSI. Depending on the cap type, it also has the job of releasing excess gas or letting coolant in.
High-pressure radiator capsThe radiator caps help as pressure relief valves and will avoid excess pressure. It prevents a lot of damage to the radiator hoses as well as the tank. Any kind of damage to those components can cause them to collapse. Although the radiator is good at keeping excessive pressure out, it's important to check up on the pressure to avoid any damage to the radiator, heater core, and hoses.
A proper functioning radiator cap is the best option to provide security over the engine coolant. The cap and the coolant pressure raise the boiling point of the fluid, which helps prevent any overheating of the vehicle.
Common issues with a radiator capA faulty radiator cap can lead to leaking coolant, overheating of the engine, and a collapsed radiator hose(s).
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