This expansion tank cap is listed for the Volkswagen Golf III, Jetta III and Polo Classic, and cross-references OE 1H0 121 321 A. It has a 1.4 bar opening pressure and a 35.5 mm height. Confirm compatibility by matching the listed fitment details and any OEM reference numbers supplied. Verify VIN/engine.
| Specification | Value |
|---|---|
| Opening Pressure | 1.4 bar |
| Height | 35.5 mm |
| Colour | Blue |
| Material | Plastic |
This expansion tank cap is listed for 30 Volkswagen applications, covering the Golf II and III (including Cabriolet), Golf IV Cabriolet, Jetta II and III, the T4 Kombi / Microbus / Caravelle and the Polo Classic, with supplied year coverage from 1983 to 2004. Use the full table below to confirm model, chassis, year range and engine before ordering.
Primary OE references: 1H0 121 321 A, 1H0 121 321 B, 1H0 121 321 C, 357 121 321, 357 121 321 A.
| Model | Chassis | Years | Engine | Power |
|---|---|---|---|---|
| Golf II | 19E, 1G1 | 1983-1992 | 1.6 (ABN, EZ, HM) | 55 kW / 75 HP |
| Golf II | 19E, 1G1 | 1983-1992 | 1.8 (GU, GX, HV) | 66 kW / 90 HP |
| Golf II | 19E, 1G1 | 1983-1992 | 1.8 GTI (DX, EV, PB) | 82 kW / 112 HP |
| Golf II | 19E, 1G1 | 1983-1992 | 1.8 GTI 16V (KR) | 102 kW / 139 HP |
| Golf III | 1H1 | 1991-2000 | 1.6 (ABU, AEA, AEE) | 55 kW / 75 HP |
| Golf III | 1H1 | 1991-2000 | 1.6 (AEK, AFT, AKS) | 74 kW / 101 HP |
| Golf III | 1H1 | 1991-2000 | 1.8 (AAM) | 55 kW / 75 HP |
| Golf III | 1H1 | 1991-2000 | 1.8 (ABS, ACC, ADZ) | 66 kW / 90 HP |
| Golf III | 1H1 | 1991-2000 | 2.0 (2E, ABA, ADY, AGG, AKR) | 85 kW / 115 HP |
| Golf III | 1H1 | 1991-2000 | 2.0 GTI 16V (ABF) | 110 kW / 150 HP |
| Golf III | 1H1 | 1991-2000 | 2.8 VR6 (AAA) | 128 kW / 174 HP |
| Golf III Cabriolet | 1E7 | 1993-1998 | 1.8 (AAM, ANN) | 55 kW / 75 HP |
| Golf III Cabriolet | 1E7 | 1993-1998 | 2.0 (2E, ADY, AGG, AKR) | 85 kW / 115 HP |
| Golf IV Cabriolet | 1E7 | 1998-2002 | 2.0 (AGG, AKR, ATU, AWF, AWG) | 85 kW / 115 HP |
| Jetta II | 19E, 1G2, 165 | 1984-1992 | 1.6 (ABN, EZ, HM) | 55 kW / 75 HP |
| Jetta II | 19E, 1G2, 165 | 1984-1992 | 1.6 (PN) | 51 kW / 70 HP |
| Jetta II | 19E, 1G2, 165 | 1984-1992 | 1.8 (EV, PB) | 82 kW / 112 HP |
| Jetta II | 19E, 1G2, 165 | 1984-1992 | 1.8 (GU, GX, HV) | 66 kW / 90 HP |
| Jetta II | 19E, 1G2, 165 | 1984-1992 | 1.8 16V (KR) | 102 kW / 140 HP |
| Jetta III | 1H2 | 1991-2000 | 1.6 (AEK, AFT, AKS) | 74 kW / 101 HP |
| Jetta III | 1H2 | 1991-2000 | 1.8 (AAM) | 55 kW / 75 HP |
| Jetta III | 1H2 | 1991-2000 | 1.8 (ABS, ADZ) | 66 kW / 90 HP |
| Jetta III | 1H2 | 1991-2000 | 2.0 (2E, ABA, ADY, AGG, AKR) | 85 kW / 115 HP |
| Jetta III | 1H2 | 1991-2000 | 2.8 VR6 (AAA) | 120 kW / 163 HP |
| Kombi / Microbus / Caravelle T4 Bus | 70B, 70C, 7DB, 7DK, 70J | 1994-2004 | 2.5 (AAF, ACU, AEN, AEU) | 81 kW / 110 HP |
| Kombi / Microbus / Caravelle T4 Bus | 70B, 70C, 7DB, 7DK, 70J | 1994-2004 | 2.5 TDI (ACV, AUF, AYC) | 75 kW / 102 HP |
| Kombi / Microbus / Caravelle T4 Bus | 70B, 70C, 7DB, 7DK, 70J | 1994-2004 | 2.5 TDI Syncro (ACV, AXL) | 75 kW / 102 HP |
| Kombi / Microbus / Caravelle T4 Bus | 70B, 70C, 7DB, 7DK, 70J | 1994-2004 | 2.8 VR6 (AES) | 103 kW / 140 HP |
| Kombi / Microbus / Caravelle T4 Bus | 70B, 70C, 7DB, 7DK, 70J | 1994-2004 | 2.8 VR6 (AMV, AXK) | 150 kW / 204 HP |
| Polo I Classic | 6V2 | 1996-2003 | 1.6 (AEH, AFT, AFX, AKL, APF, AUR) | 74 kW / 100 HP |
Alternate OEM Search References: 1H0121321A, 1H0121321B, 1H0121321C, 357121321, 357121321A, 357121321C
Will this expansion tank cap fit my Volkswagen Golf III?
This part (103451) is listed for the fitments shown on this page. Confirm by matching the fitment details. Verify VIN/engine.
What OEM part numbers does this cross-reference?
Cross-reference numbers are listed in the OEM Reference Numbers section above. Match at least one to your original part before ordering.
How do I make sure I order the correct cap?
Match the 1.4 bar opening pressure and 35.5 mm height, and compare an OE reference such as 1H0 121 321 A to your original cap before ordering.
How do I confirm fitment if there are multiple variants?
Compare the supplied fitment details, OE reference numbers, original part details and any listed variant information before ordering. Verify VIN/engine.
Warranty
Our products are covered by a manufacturer’s warranty ranging from 6 months up to a lifetime, subject to the specific item. For detailed warranty information, kindly enquire with our support team.
South Africa: 1-3 Days
Free Shipping Over R2000
Shipping From R60
International: 2-5 Days
Got my order faster than expected, product is as described
High quality, good mechanics
Excellent quality
Delivery times as promised
Great replacement remote that is Nova compatible. Easy to program.
Excellent service and price
Since the Centurion D5 isn't supported at all anymore by Centurion Systems, I bought this scarce item as a "backup" for the day I need it. (Along with refurbished D5 CP80 controller, from another supplier though.)
Much easier to replace just the gate sensor & harness - or CP80 - than de-wire / re-wire all connections than replacing the entire D5 gate motor!
Arrive perfectly & securely wrapped and courier service was very quick.
Thank you!
The remote works perfectly fine
Excellent quality cup handle with a clean brushed satin nickel finish. It feels sturdy, was easy to install, and gives cabinets and drawers a modern, premium look. The 64mm size fit perfectly, and the finish looks great while helping to hide fingerprints. Very happy with the purchase and would definitely recommend it.
It is a great product.
Quick and easy to order keep it up
Great fans, they look fantastic and great for when you want to run quiet builds.
I got the things I wanted from the store and pretty fast too. Great find, will being from them again on my birthday for a new case.
Fantastic service! Order arrived faster than expected
Good communication and good service
good services
Recently viewed
Welcome to GUNMANSA — where tactical culture, modern tech, self-defense gear, electronics, and premium lifestyle products come together in one powerful shopping experience.
We work hard to ensure your order arrives quickly, securely, and professionally packaged
Many products are shipped in discreet packaging for added privacy and professionalism.
Your experience matters to us. We aim to provide reliable support before and after your purchase.
Returns may be accepted based on product condition, packaging condition, time since delivery, and product category restrictions.
Our support team can assist with product guidance, order updates, compatibility questions, technical support, and returns & exchanges.
Certain products sold by GUNMANSA require responsible handling and adult supervision where applicable.
Some products may require setup or accessories, have age-related restrictions, need batteries/gas/ammunition/accessories, or require maintenance.
Shop confidently knowing your information and payments are protected.
Delivery times vary depending on your location and product availability.
Yes — tracking details are typically provided once orders are dispatched.
Eligible returns may be accepted according to our returns policy.
Some items include supplier/manufacturer warranty coverage.
Yes — we ship across South Africa.
South Africa’s trusted online store for self-defence, tactical gear, blank guns, air guns, electronics and security essentials.
© 2026, GUNMANSA Shopify द्वारा संचालित
!