Radiator Cap

A Radiator Cap Helps the Cooling System Hold Pressure

A radiator cap does more than close the filler neck. Gates explains that the radiator cap seals the cooling system and helps maintain the prescribed operating pressure, while product descriptions on Auto Parts Market UAE also note that the cap keeps coolant under the correct pressure and raises the boiling point of antifreeze. In practical terms, this means a car radiator cap is part of temperature control, not just a simple lid. 

A Small Pressure Part Can Affect the Whole System

When the pressure cap is worn, the cooling system may no longer hold pressure the way it should. Gates specifically warns that even a component as small as the pressure cap is critical, and that a worn cap can compromise the functioning of the entire cooling system. That is why radiator-cap problems should not be dismissed as minor, especially when overheating or unexplained coolant loss is involved. 

Correct Pressure Rating and Fitment Matter

A radiator cap has to match the original cooling-system specification. Pressure rating, sealing surface, cap design and OE reference all need to line up with the vehicle. At Auto Parts Market UAE, we offer radiator cap solutions for multiple applications, including Toyota, Nissan, Mitsubishi, Hyundai and Mercedes-Benz-related OE-style fitments. Whether the search is for a car radiator cap, a Toyota radiator cap or a Honda Civic radiator cap, the right replacement should always be chosen by exact application, not by appearance alone. 

Find the Right Radiator Cap at Auto Parts Market UAE

At Auto Parts Market UAE, we offer radiator cap solutions for buyers who want the cooling system to hold pressure properly after repair. The right cap should seal the filler neck correctly, maintain the intended system pressure and match the original specification without guesswork. A properly selected replacement helps support stable coolant behavior, better temperature control and a cleaner cooling-system repair overall.

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SKU: 17227577637

Net: AED 117.67 AED 123.55 with VAT
SKU: 17117639020

Genuine BMW radiator cap. This cap regulates and maintains the pressure in the cooling system (1.4 bar). Replacement is recommended every three years ..

Net: AED 105.47 AED 110.74 with VAT
SKU: 16572-28200

RADIATOR HOSE MANUFACTURED BY TOYOTA , PART NUMBER 16572-28200 , OE PART NUMBER 16572-28200 TO FIT TOYOTA VEHICLES

Net: AED 82.76 AED 86.89 with VAT
SKU: 19045-59B-005

Genuine Honda Cap Comp. This cap is for the expansion tank and ensures the cooling system is properly sealed.

Net: AED 114.48 AED 120.20 with VAT
Cap Assy Radiator Re
Cap Assy Radiator Re
HYUNDAI / KIA
SKU: 25440-2E000

CAP ASSY RADIATOR RE MANUFACTURED BY HYUNDAI , PART NUMBER 25440-2E000 , OE PART NUMBER 25440-2E000 TO FIT HYUNDAI VEHICLES

Net: AED 20.16 AED 21.17 with VAT
Cap Assy Radiator Re
Cap Assy Radiator Re
HYUNDAI / KIA
SKU: 25440-3S000

CAP ASSY RADIATOR RE MANUFACTURED BY HYUNDAI , PART NUMBER 25440-3S000 , OE PART NUMBER 25440-3S000 TO FIT HYUNDAI VEHICLES

Net: AED 20.90 AED 21.94 with VAT
Cap Rad
Cap Rad
MOPAR
SKU: 55116901AA

CAP RAD MANUFACTURED BY MOPAR , PART NUMBER 55116901AA , OE PART NUMBER 55116901AA TO FIT MOPAR VEHICLES

Net: AED 86.30 AED 90.62 with VAT
Cap Radiator
Cap Radiator
Genuine
NISSAN
SKU: 21430-7999C

Net: AED 46.07 AED 48.37 with VAT
and 1 more offer
SKU: 16405-66030

RESERVE TANK CAP MANUFACTURED BY TOY , PART NUMBER 16405-66030 , OE PART NUMBER 16405-66030 TO FIT TOYOTA VEHICLES

Net: AED 99.13 AED 104.09 with VAT
SKU: 2135010201

This is a genuine Mercedes-Benz coolant hose vent line, part number A2135010201, designed for the E-Class W213. It is made of durable plastic and ensu..

Net: AED 313.41 AED 329.08 with VAT
SKU: 21430-ZZ30A

Net: AED 38.45 AED 40.37 with VAT
and 1 more offer
SKU: 13598760

OEM radiator cap for GM coolant expansion tank.

Net: AED 82.50 AED 86.63 with VAT
SKU: 15042975

Genuine GM radiator cap, also known as filler cap. Provides 15 PSI pressure rating for engine cooling system.

Net: AED 69.00 AED 72.45 with VAT
SKU: 21430-F9912

Genuine Nissan Radiator Cap Assembly. This cap is designed to maintain proper pressure and coolant levels in the radiator.

Net: AED 38.81 AED 40.75 with VAT
SKU: 19045-PWA-004

Genuine Honda radiator cap (Toyo) with part number 19045-PWA-004. Included with radiator assembly.

Net: AED 95.62 AED 100.40 with VAT
and 1 more offer
SKU: AJA4-15-205

This is a genuine Mazda radiator cap with part number AJA4-15-205. It is designed for the coolant reservoir and ensures proper sealing of the cooling ..

Net: AED 82.37 AED 86.49 with VAT
SKU: NF01-15-205A

This is a genuine Mazda radiator cap with part number NF01-15-205A. It maintains pressure within the cooling system.

Net: AED 63.86 AED 67.06 with VAT
and 1 more offer
SKU: 1350A730

Net: AED 45.81 AED 48.10 with VAT
and 2 more offers
SKU: 21430-1P111

CAP ASSY MANUFACTURED BY NISSAN , PART NUMBER 21430-1P111 , OE PART NUMBER 21430-1P111 TO FIT NISSAN VEHICLES

Net: AED 42.93 AED 45.08 with VAT
SKU: 21430-8993A

Consensus from independent sources classifies this OEM reference as a Radiator based on matching evidence titles.

Net: AED 43.14 AED 45.30 with VAT
and 1 more offer
SKU: MR968532

OEM radiator cap for Mitsubishi vehicles. Fits 2003-2006 Mitsubishi Montero Gen 3 NP 3.8L.

Net: AED 35.69 AED 37.47 with VAT
and 2 more offers
SKU: 19045-RAA-003

This OEM radiator cap is made of durable aluminum and fits securely in the engine compartment, ensuring optimal performance. It maintains pressure and..

Net: AED 90.90 AED 95.45 with VAT
and 1 more offer
SKU: 16401-31480

RADIATOR CAP MANUFACTURED BY TOY , PART NUMBER 16401-31480 , OE PART NUMBER 16401-31480 TO FIT TOYOTA VEHICLES

Net: AED 70.98 AED 74.53 with VAT
and 1 more offer
SKU: 16401-36030

CAP SUB ASSY MANUFACTURED BY TOY , PART NUMBER 16401-36030 , OE PART NUMBER 16401-36030 TO FIT TOYOTA VEHICLES

Net: AED 62.11 AED 65.22 with VAT
and 1 more offer
SKU: 16401-31650

RADIATOR CAP MANUFACTURED BY TOY , PART NUMBER 16401-31650 , OE PART NUMBER 16401-31650 TO FIT TOYOTA VEHICLES

Net: AED 63.46 AED 66.63 with VAT
and 1 more offer
SKU: 16573-17020

RADIATOR HOSE MANUFACTURED BY TOYOTA , PART NUMBER 16573-17020 , OE PART NUMBER 16573-17020 TO FIT TOYOTA VEHICLES

Net: AED 33.09 AED 34.75 with VAT
SKU: 25330-17000

Genuine Hyundai radiator cap assembly. Fits various Hyundai and Kia models from 1986-2011.

Net: AED 36.73 AED 38.56 with VAT
SKU: 25330-1P000

OEM radiator cap assembly for select Hyundai and Kia models.

Net: AED 39.14 AED 41.10 with VAT
and 1 more offer
SKU: 25330-3Z000

OEM radiator cap assembly for Hyundai and Kia vehicles. Part number 25330-3Z000.

Net: AED 44.77 AED 47.01 with VAT
SKU: 25330-C7000

OEM radiator cap for select Hyundai and Kia vehicles. Replaces part number 25330-C7000.

Net: AED 50.66 AED 53.19 with VAT
SKU: 25330-D3000

Genuine OEM radiator cap for Hyundai and Kia vehicles. Fits multiple models including Tucson, Elantra, Veloster, Kona, Niro, and Sportage.

Net: AED 69.51 AED 72.98 with VAT
SKU: PE01-15-205

This is a genuine Mazda radiator cap, part number PE01-15-205, designed to maintain proper pressure and temperature within the radiator. It is an esse..

Net: AED 94.85 AED 99.59 with VAT
SKU: 0005017215

Net: AED 22.77 AED 23.91 with VAT
SKU: 210 501 0615

Radiator cap for Mercedes-Benz vehicles, also known as expansion tank cap. Genuine OEM part number 2105010615.

Net: AED 128.01 AED 134.41 with VAT
SKU: 1350A352

OE radiator cap for Mitsubishi vehicles. Also known as expansion tank cap or sealing cap.

Net: AED 61.47 AED 64.54 with VAT
SKU: 1350A920

A replacement radiator cap designed for Mitsubishi cooling systems to maintain proper operating pressure and prevent coolant leakage.

Net: AED 94.86 AED 99.60 with VAT
SKU: 21430W060P

Mitsubishi radiator cap for various models. Part number 21430W060P.

Net: AED 69.12 AED 72.58 with VAT
SKU: ME418239

Genuine MITSUBISHI radiator cap for cooling system. Also known as cap assembly for cooling water filler.

Net: AED 75.49 AED 79.26 with VAT
SKU: MR481217

OEM radiator cap for Mitsubishi vehicles. Ensures proper sealing of the cooling system.

Net: AED 53.86 AED 56.55 with VAT
and 1 more offer
SKU: MR597126

Genuine Mitsubishi radiator cap in silver finish. Designed for various Mitsubishi models to maintain proper cooling system pressure.

Net: AED 31.70 AED 33.29 with VAT
SKU: 1350A088

This is a genuine Mitsubishi radiator cap, part number 1350A088. It maintains optimal pressure in the cooling system and allows coolant to escape to t..

Net: AED 34.85 AED 36.59 with VAT
and 2 more offers
SKU: MR481216

Genuine OEM radiator cap. It is included with the radiator.

Net: AED 40.08 AED 42.08 with VAT
SKU: 16401-41021

The Radiator Cap Sub-Assembly regulates pressure within the cooling system, preventing damage to the radiator and engine components. It keeps the cool..

Net: AED 72.68 AED 76.32 with VAT
SKU: 21430-C991A

A genuine Nissan radiator filler cap assembly designed to maintain pressure and seal the cooling system for various Nissan and Infiniti models.

Net: AED 46.09 AED 48.39 with VAT
and 1 more offer
SKU: 21430-4GA0A

CAP ASSY PRESSURE MANUFACTURED BY NISSAN , PART NUMBER 21430-4GA0A , OE PART NUMBER 21430-4GA0A TO FIT NISSAN VEHICLES

Net: AED 46.09 AED 48.39 with VAT
SKU: 21430-JB50A

Net: AED 46.13 AED 48.43 with VAT
and 1 more offer
SKU: 21430-95F0D

CAP ASSY MANUFACTURED BY NISSAN , PART NUMBER 21430-95F0D , OE PART NUMBER 21430-95F0D TO FIT NISSAN VEHICLES

Net: AED 39.59 AED 41.57 with VAT
SKU: 21430-8999C

Genuine OEM Nissan radiator cap. This cap maintains the correct pressure in the engine cooling system to ensure the coolant stays at the right tempera..

Net: AED 46.11 AED 48.41 with VAT
and 1 more offer
SKU: MB660735

Net: AED 64.53 AED 67.76 with VAT
and 1 more offer
SKU: 21430-8991A

RADIATOR CAP MANUFACTURED BY NISSAN , PART NUMBER 21430-8991A , OE PART NUMBER 21430-8991A TO FIT NISSAN VEHICLES

Net: AED 46.26 AED 48.57 with VAT
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