URO 443121321 Engine Coolant Reservoir Cap

Name: URO 443121321 Engine Coolant Reservoir Cap
Brand: URO
SKU: DDWC-443121321
Price: 7.74 USD
Availability: InStock

⚙️ 176 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Audi and Volkswagen, 100, 100 Quattro, 200, 200 Quattro, 4000, 4000 Quattro, 5000 Quattro, 80, 80 Quattro, 90, 90 Quattro, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, Cabriolet, Coupe, Coupe Quattro, Golf, Jetta, Quattro, Rabbit Convertible, Rabbit Pickup, S4, S6, S8, and V8 Quattro

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Reliable Engine Coolant Reservoir Cap for Audi and Volkswagen

The URO Engine Coolant Reservoir Cap 443121321 is designed to maintain proper pressure and prevent coolant leaks in your vehicle's cooling system. Compatible with a wide range of Audi and Volkswagen models, this cap ensures your engine runs efficiently and stays protected from overheating.

Compatible with Audi and Volkswagen models including 80, 90, 100, 200, 4000, 5000 Quattro, A4, A6, A8, Cabriolet, Coupe, Golf, Jetta, Rabbit, S4, S6, S8, and V8 Quattro
Durable construction to withstand engine heat and pressure
Exact fit replacement for part number 443121321
Maintains proper coolant system pressure to prevent leaks and overheating
GTIN 00847603029287 for easy identification and verification

Product Details and Compatibility

This URO Engine Coolant Reservoir Cap is engineered to meet OEM specifications for a precise fit on various Audi and Volkswagen vehicles. Whether you own an Audi A4 Quattro or a Volkswagen Golf, this cap is designed to replace the original part number 443121321 without modification. It plays a critical role in sealing the coolant reservoir, maintaining system pressure, and preventing coolant loss that can lead to engine overheating or damage.

Common Applications and Problem Solving

Prevents coolant leaks from the reservoir
Maintains proper pressure in the cooling system
Helps avoid engine overheating issues
Replaces worn or damaged reservoir caps
Ensures coolant system integrity for Audi and Volkswagen models

Installation Notes and Tips

Installation of the URO Engine Coolant Reservoir Cap 443121321 is straightforward and requires no special tools. Ensure the engine is cool before removing the old cap to avoid injury from hot coolant or steam. Align the cap properly and twist until it locks securely in place. Regular inspection of the cap and cooling system is recommended to maintain optimal engine performance.

Quality Assurance and Warranty

URO parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details for part number 443121321 are not provided, URO products typically come with a limited warranty against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.

This part fits 176 vehicles. Search below:

Year	Make	Model	Submodel	Liters	Cylinders	Fuel Type	Position	Notes
2003	Audi	A8 Quattro					N/A
2003	Audi	S8					N/A
2002	Audi	A8 Quattro					N/A
2002	Audi	S8					N/A
2001	Audi	A8 Quattro					N/A
2001	Audi	S8					N/A
2000	Audi	A8 Quattro					N/A
1999	Audi	A8					N/A
1999	Audi	A8 Quattro					N/A
1998	Audi	A6					N/A	Chassis Range: Thru 4A-W-005000
1998	Audi	A6 Quattro					N/A
1998	Audi	A8					N/A
1998	Audi	A8 Quattro					N/A
1998	Audi	Cabriolet					N/A
1997	Audi	A6					N/A
1997	Audi	A6 Quattro					N/A
1997	Audi	A8					N/A
1997	Audi	A8 Quattro					N/A
1997	Audi	Cabriolet					N/A
1996	Audi	A4					N/A
1996	Audi	A4 Quattro					N/A	Chassis Range: Thru 8D-T-308000
1996	Audi	A6					N/A
1996	Audi	A6 Quattro					N/A
1996	Audi	Cabriolet					N/A
1995	Audi	90					N/A
1995	Audi	90 Quattro					N/A
1995	Audi	A6					N/A
1995	Audi	A6 Quattro					N/A
1995	Audi	Cabriolet					N/A
1995	Audi	S6					N/A
1994	Audi	100					N/A
1994	Audi	100 Quattro					N/A
1994	Audi	90					N/A
1994	Audi	90 Quattro					N/A
1994	Audi	Cabriolet					N/A
1994	Audi	S4					N/A
1994	Audi	V8 Quattro					N/A
1993	Audi	100					N/A
1993	Audi	100 Quattro					N/A
1993	Audi	90					N/A
1993	Audi	90 Quattro					N/A
1993	Audi	S4					N/A
1993	Audi	V8 Quattro					N/A
1993	Volkswagen	Cabriolet					N/A
1992	Audi	100					N/A
1992	Audi	100 Quattro					N/A
1992	Audi	80					N/A
1992	Audi	80 Quattro					N/A
1992	Audi	S4					N/A
1992	Audi	V8 Quattro					N/A
1992	Volkswagen	Cabriolet					N/A
1991	Audi	100					N/A
1991	Audi	100 Quattro					N/A
1991	Audi	200					N/A
1991	Audi	200 Quattro					N/A
1991	Audi	80					N/A
1991	Audi	80 Quattro					N/A
1991	Audi	90					N/A
1991	Audi	90 Quattro					N/A
1991	Audi	Coupe Quattro					N/A
1991	Audi	V8 Quattro					N/A
1991	Volkswagen	Cabriolet					N/A
1990	Audi	100					N/A
1990	Audi	100 Quattro					N/A
1990	Audi	200					N/A
1990	Audi	200 Quattro					N/A
1990	Audi	80					N/A
1990	Audi	80 Quattro					N/A
1990	Audi	90					N/A
1990	Audi	90 Quattro					N/A
1990	Audi	Coupe Quattro					N/A
1990	Audi	V8 Quattro					N/A
1990	Volkswagen	Cabriolet					N/A
1990	Volkswagen	Golf		1.8L	L4		N/A	Chassis Range: To 006 600
1990	Volkswagen	Jetta					N/A	Mexican Production; Chassis Range: To 006 600
1990	Volkswagen	Jetta		1.6L	L4		N/A	Mexican Production; Chassis Range: To 006 600
1990	Volkswagen	Jetta		1.8L	L4		N/A	Mexican Production; Chassis Range: To 006 600
1989	Audi	100					N/A
1989	Audi	100 Quattro					N/A
1989	Audi	200					N/A
1989	Audi	200 Quattro					N/A
1989	Audi	80					N/A
1989	Audi	80 Quattro					N/A
1989	Audi	90					N/A
1989	Audi	90 Quattro					N/A
1989	Volkswagen	Cabriolet					N/A
1989	Volkswagen	Golf	GL	1.8L	L4		N/A
1989	Volkswagen	Golf	GTI 16-Valve				N/A
1989	Volkswagen	Jetta		1.6L	L4		N/A
1989	Volkswagen	Jetta		1.8L	L4		N/A
1989	Volkswagen	Jetta	Carat				N/A
1989	Volkswagen	Jetta	GLI 16-Valve				N/A
1988	Audi	5000 Quattro					N/A
1988	Audi	80					N/A
1988	Audi	80 Quattro					N/A
1988	Audi	90					N/A
1988	Audi	90 Quattro					N/A
1988	Volkswagen	Cabriolet					N/A
1988	Volkswagen	Golf		1.8L	L4		N/A
1988	Volkswagen	Jetta	Carat				N/A
1988	Volkswagen	Jetta	GL	1.8L	L4		N/A
1988	Volkswagen	Jetta	GLI 16-Valve				N/A
1987	Audi	4000					N/A
1987	Audi	4000 Quattro					N/A
1987	Audi	5000 Quattro					N/A
1987	Audi	Coupe					N/A
1987	Volkswagen	Cabriolet					N/A
1987	Volkswagen	Golf	GL				N/A
1987	Volkswagen	Golf	GT				N/A
1987	Volkswagen	Golf	GTI				N/A
1987	Volkswagen	Golf	GTI 16-Valve				N/A
1987	Volkswagen	Jetta	GL	1.6L	L4		N/A
1987	Volkswagen	Jetta	GL	1.8L	L4		N/A	Exc. Turbo Diesel - w/ A/C; Chassis Range: To 006 600
1987	Volkswagen	Jetta	GLI				N/A
1987	Volkswagen	Jetta	GLI 16-Valve				N/A
1987	Volkswagen	Jetta	Wolfsburg Edition	1.6L	L4		N/A
1987	Volkswagen	Jetta	Wolfsburg Edition	1.8L	L4		N/A
1986	Audi	4000		1.8L	L4		N/A
1986	Audi	4000 Quattro					N/A
1986	Audi	5000 Quattro					N/A
1986	Audi	Coupe					N/A
1986	Volkswagen	Cabriolet					N/A
1986	Volkswagen	Golf					N/A
1986	Volkswagen	Jetta	Base	1.6L	L4		N/A
1986	Volkswagen	Jetta	GL	1.6L	L4		N/A
1986	Volkswagen	Jetta	GL				N/A
1986	Volkswagen	Jetta	GL	1.8L	L4		N/A	Exc. Turbo Diesel - w/ A/C; Chassis Range: To 006 600
1986	Volkswagen	Jetta	GLI				N/A
1985	Audi	4000		1.8L	L4		N/A
1985	Audi	4000 Quattro					N/A
1985	Audi	Coupe					N/A
1985	Audi	Quattro					N/A
1985	Volkswagen	Cabriolet					N/A
1985	Volkswagen	Golf					N/A
1985	Volkswagen	Jetta	Base	1.6L	L4		N/A
1985	Volkswagen	Jetta	GL	1.6L	L4		N/A
1985	Volkswagen	Jetta	GL	1.8L	L4		N/A
1985	Volkswagen	Jetta	GL				N/A
1985	Volkswagen	Jetta	GLI				N/A
1984	Audi	4000		1.8L	L4		N/A
1984	Audi	4000 Quattro					N/A
1984	Audi	Coupe					N/A
1984	Audi	Quattro					N/A
1984	Volkswagen	Jetta	Base				N/A	w/ A/C
1984	Volkswagen	Jetta	GL	1.6L	L4		N/A	w/ A/C
1984	Volkswagen	Jetta	GL				N/A	w/ A/C
1984	Volkswagen	Rabbit Convertible					N/A
1983	Audi	4000					N/A
1983	Audi	Coupe					N/A
1983	Audi	Quattro					N/A
1983	Volkswagen	Jetta		1.6L	L4		N/A
1983	Volkswagen	Jetta				DIESEL	N/A	w/ A/C
1983	Volkswagen	Jetta	Base	1.7L	L4	GAS	N/A	w/ A/C
1983	Volkswagen	Rabbit Convertible					N/A
1983	Volkswagen	Rabbit Pickup				GAS	N/A
1983	Volkswagen	Rabbit Pickup				DIESEL	N/A	Exc. Turbo Diesel
1982	Audi	4000		1.6L	L4		N/A
1982	Audi	4000		1.7L	L4		N/A
1982	Audi	Coupe					N/A
1982	Volkswagen	Jetta				GAS	N/A
1982	Volkswagen	Jetta		1.6L	L4		N/A
1982	Volkswagen	Jetta				DIESEL	N/A	w/ A/C
1982	Volkswagen	Rabbit Convertible					N/A
1982	Volkswagen	Rabbit Pickup				GAS	N/A
1982	Volkswagen	Rabbit Pickup				DIESEL	N/A	Exc. Turbo Diesel
1981	Audi	4000					N/A
1981	Audi	Coupe					N/A
1981	Volkswagen	Jetta		1.6L	L4		N/A
1981	Volkswagen	Jetta	Base	1.7L	L4		N/A
1981	Volkswagen	Rabbit Convertible					N/A
1981	Volkswagen	Rabbit Pickup				GAS	N/A
1981	Volkswagen	Rabbit Pickup				DIESEL	N/A	Exc. Turbo Diesel
1980	Audi	4000					N/A
1980	Volkswagen	Jetta					N/A
1980	Volkswagen	Rabbit Convertible					N/A
1980	Volkswagen	Rabbit Pickup					N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0226910225118 54029 280118 54029 589118 54029 738171 121 321D31335443 121 321443 121 321-E443121321URO-002826V10-0018

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.