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Cooling Systems, Fans & Radiators
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OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-PAA-A01
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)
$12.73 MSRP:$17.97You Save: $5.24 (30%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31539Product 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
$20.98
OEM (Genuine) Cap, Reserve Tank
PartNumber: 19102-PM5-A00
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
$1.91 MSRP:$2.67You Save: $0.76 (29%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31332Product 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
$13.73OEM (Genuine) Cap, Reserve Tank
PartNumber: 19102-PM5-A00Product 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
$1.90 MSRP:$2.67You Save: $0.77 (29%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31550Product 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
$10.23
OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-RAA-003
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)
$20.32 MSRP:$28.71You Save: $8.39 (30%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31329Product 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
$8.59OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-RAA-003Product 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)
$20.41 MSRP:$28.71You Save: $8.30 (29%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31411Product 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
$7.92OEM (Genuine) Cap, Radiator (Denso)
PartNumber: 19045-PAA-A01Product 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)
$12.78 MSRP:$17.97You Save: $5.19 (29%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31412Product 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
$7.45
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31333Product 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
$7.28
OEM (Genuine) Cap
PartNumber: 16401-63010
Product Specifications- Item Dimensions: 2.9 x 2.9 x 2.8 inches
- Item Weight: 0.40 Pounds
- Part Description: Cap
$17.14 MSRP:$24.67You Save: $7.53 (31%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31336Product 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
$7.28
OEM (Genuine) Radiator Assembly Mount Bolt
PartNumber: 16401-31480
Product Specifications- Other Names: Cap, Radiator Cap
- Item Dimensions: 2.9 x 2.1 x 1.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 16401-02421, 16401-28280, 16401-28430
- Part Description: Radiator Assembly Mount Bolt
$15.59 MSRP:$22.43You Save: $6.84 (31%)
OEM (Genuine) Cap-Reservoir Tank
PartNumber: 21712-79900
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
$12.48 MSRP:$17.03You Save: $4.55 (27%)
OEM (Genuine) Cap Assy-Filler
PartNumber: 21430-C991A
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
$21.57 MSRP:$29.48You Save: $7.91 (27%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31548Product 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
$6.24OEM (Genuine) Coolant Expansion Tank
PartNumber: 17-11-2-227-091
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
$140.34 MSRP:$173.12You Save: $32.78 (19%)
Gates® Engine Coolant Safety Release Radiator Cap
PartNumber: 31518Product 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
$6.67OEM (Genuine) Cap Assembly-Radiator
PartNumber: 21430-1P107
Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 3.3 x 3.1 x 0.5 inches
- Item Weight: 0.30 Pounds
- Fitment Type: Direct Replacement
- Part Description: Cap Assembly-Radiator
$19.08 MSRP:$26.05You Save: $6.97 (27%)
Gates® Engine Coolant Safety Release Radiator Cap
PartNumber: 31534Product 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
$6.40
OEM (Genuine) Cap, Radiator (Toyo)
PartNumber: 19045-PWA-004
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)
$15.81 MSRP:$22.32You Save: $6.51 (30%)
Gates® Engine Coolant Safety Release Radiator Cap
PartNumber: 31516Product 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
$6.24
OEM (Genuine) Cover, Radiator Cap (Denso)
PartNumber: 19047-PLC-003
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)
$6.32 MSRP:$8.92You Save: $2.60 (30%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31328Product 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
$5.67OEM (Genuine) Radiator Cap
PartNumber: 16401-54750
Product Specifications- Item Dimensions: 2.8 x 2.8 x 2.8 inches
- Item Weight: 0.40 Pounds
- Replaces: 16401-71010
- Part Description: Radiator Cap
$12.99 MSRP:$18.70You Save: $5.71 (31%)
Gates® Engine Coolant Replacement Radiator Cap
PartNumber: 31405Product 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
$5.23
OEM (Genuine) Cap Assembly-Radiator
PartNumber: 21430-8991A
Product Specifications- Other Names: Radiator Cap
- Item Dimensions: 2.7 x 1.8 x 1.0 inches
- Item Weight: 0.60 Pounds
- Part Description: Cap Assembly-Radiator
$21.57 MSRP:$29.48You Save: $7.91 (27%)
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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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