Home› Belts and Cooling > Hardware, Fasteners and Fittings› URO 1H0121321A Engine Coolant Reservoir Cap
URO 1H0121321A Engine Coolant Reservoir CapOE Quality 60-Day Returns
Part #: 1H0121321A

URO 1H0121321A Engine Coolant Reservoir Cap

82 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$14.29Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Volkswagen, Cabrio, Corrado, EuroVan, Golf, Jetta, and Passat
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Engine Coolant Reservoir Cap options

Engine Coolant Reservoir Cap for Volkswagen

This URO engine coolant reservoir cap is built for Volkswagen cooling system service where a precise seal and correct pressure retention matter. It is a direct-fit replacement for select EuroVan, Cabrio, Golf, Jetta, Passat, and Corrado applications.

  • Precision-molded to OE cap dimensions for original and aftermarket coolant recovery tanks
  • Heat-resistant cap and seal materials for the engine cooling environment
  • Factory pressure-tested for fit and sealing performance
  • Guaranteed fitment for listed Volkswagen applications
  • URO part number 1H0121321A

Fitment and Cross References

Fits 1999-2003 Volkswagen EuroVan, N/A. Fits 1992-1997 Volkswagen EuroVan, N/A. Fits 1995-2002 Volkswagen Cabrio, N/A. Fits 1990-1999 Volkswagen Golf, N/A. Fits 1990-1999 Volkswagen Jetta, N/A. Fits 1990-1997 Volkswagen Passat, N/A. Fits 1990-1995 Volkswagen Corrado, N/A. Fits 1990 Volkswagen Jetta, N/A, chassis range from 006601. Fits 1989 Volkswagen Golf, N/A, from 11/89.

This part cross-references Gates (e.g., 31328) and VAICO (e.g., V10-0012) for the same application.

What It Helps Address

  • Coolant loss from a cap that no longer seals properly
  • Pressure-related overflow or venting in the coolant recovery tank
  • Cracked, worn, or heat-aged reservoir cap sealing surfaces
  • Service replacement for a missing or damaged coolant reservoir cap

Installation Notes

Verify the reservoir neck profile and vehicle application before installation. Inspect the coolant tank sealing surface for debris, cracks, or distortion, then install the cap fully and confirm proper engagement. For Volkswagen Golf, Jetta, Passat, Corrado, and EuroVan cooling system service, matching the cap to the correct tank design is important for sealing performance.

Quality Assurance

URO manufactures this cap to OE dimensions and pressure-tests it before release. It is backed by a 24 Month Unlimited Mileage Warranty. Part number 1H0121321A is intended for the listed Volkswagen fitments.

This part fits 82 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2003VolkswagenEuroVanN/A
2002VolkswagenCabrioN/A
2002VolkswagenEuroVanN/A
2001VolkswagenCabrioN/A
2001VolkswagenEuroVanN/A
2000VolkswagenCabrioN/A
2000VolkswagenEuroVanN/A
1999VolkswagenCabrioN/A
1999VolkswagenEuroVanN/A
1999VolkswagenGolf2.0LL4N/A
1999VolkswagenJettaN/A
1999VolkswagenJetta2.0LL4N/A
1999VolkswagenJettaGLN/A
1999VolkswagenJettaGLSN/A
1999VolkswagenJettaWolfsburg EditionN/A
1998VolkswagenCabrioN/A
1998VolkswagenGolfN/A
1998VolkswagenGolf2.0LL4N/A
1998VolkswagenGolf1.9LL4N/A
1998VolkswagenJettaN/A
1997VolkswagenCabrioN/A
1997VolkswagenEuroVanN/A
1997VolkswagenGolfN/A
1997VolkswagenGolf2.0LL4N/A
1997VolkswagenJettaN/A
1997VolkswagenPassatN/A
1997VolkswagenPassat1.9LL4N/A
1996VolkswagenCabrioN/A
1996VolkswagenEuroVanN/A
1996VolkswagenEuroVan2.5LL5N/A
1996VolkswagenGolfN/A
1996VolkswagenGolf2.0LL4N/A
1996VolkswagenJettaN/A
1996VolkswagenPassatN/A
1996VolkswagenPassat2.0LL4N/A
1996VolkswagenPassat1.9LL4N/A
1995VolkswagenCabrioN/A
1995VolkswagenCorradoN/A
1995VolkswagenEuroVanN/A
1995VolkswagenEuroVan2.5LL5N/A
1995VolkswagenGolfN/A
1995VolkswagenJettaN/A
1995VolkswagenPassatN/A
1995VolkswagenPassat2.0LL4N/A
1994VolkswagenCorradoN/A
1994VolkswagenEuroVanN/A
1994VolkswagenGolfN/A
1994VolkswagenGolf2.0LL4N/A
1994VolkswagenJettaN/A
1994VolkswagenPassatN/A
1994VolkswagenPassat2.0LL4N/A
1993VolkswagenCorradoN/A
1993VolkswagenEuroVanN/A
1993VolkswagenEuroVan2.5LL5N/A
1993VolkswagenGolfN/A
1993VolkswagenGolf2.0LL4N/A
1993VolkswagenJettaN/A
1993VolkswagenPassatN/A
1993VolkswagenPassat2.0LL4N/A
1992VolkswagenCorradoN/A
1992VolkswagenEuroVanN/A
1992VolkswagenGolf2.0LL4N/A
1992VolkswagenGolf1.8LL4N/A
1992VolkswagenJettaN/A
1992VolkswagenPassatN/A
1992VolkswagenPassat2.0LL4N/A
1991VolkswagenCorradoN/A
1991VolkswagenGolf2.0LL4N/A
1991VolkswagenGolf1.8LL4N/A
1991VolkswagenJettaN/A
1991VolkswagenPassatN/A
1991VolkswagenPassat2.0LL4N/A
1990VolkswagenCorradoN/A
1990VolkswagenGolf2.0LL4N/A
1990VolkswagenGolf1.8LL4N/A
1990VolkswagenJettaN/A
1990VolkswagenJettaN/AChassis Range From 006601
1990VolkswagenJettaGLDIESELN/AChassis Range From 006601
1990VolkswagenJettaGLN/AChassis Range From 006601
1990VolkswagenJettaGLI 16-ValveN/A
1990VolkswagenPassatN/A
1989VolkswagenGolfN/AFrom 11/89

* 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:

100121006310243118 54020 500118 54020 5891H0 121 321A1H0 121 321C1H0121321A31328357 121 321CCPE0020PGAT 31328URO-001580V10-0012

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