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Details
| Specification | Value |
|---|---|
| Brand | Oyodo |
| MPN | 21f9000-oyo |
OE numbers (2)
Search by this OE number to find compatible parts
- VAG—028 129 101
- VAG—028 129 101D
Where this part fits
Original-fit position for OE 028129101D. The red ring marks where this part installs on the vehicle.
About this product
Sourced from Oyodo, this valve crankcase ventilation (21F9000-OYO) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Verified to fit AUDI, SEAT, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 028 129 101, 028 129 101D, 03719, 111 562 and 6 more. Matching these numbers confirms a like-for-like replacement with no loss of function. Oyodo is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (8)
Valve Crankcase Ventilation Oyodo 21F9000-OYO — compatible car models
| Car models | AUDI: 80 B3 Saloon (893, 894, 8A2), 80 B4 Avant (8C5), 80 B4 Saloon (8C2), A4 B5 (8D2), A4 B5 Avant (8D5), A6 C4 (4A2), A6 C4 Avant (4A5), A6 C5 (4B2, 4B4), A6 C5 Avant (4B5, 4B6); SEAT: ALHAMBRA (7V8, 7V9), CORDOBA (6K1, 6K2), CORDOBA Vario (6K5), IBIZA II (6K1), INCA (6K9), TOLEDO I (1L2); VW: CADDY II Box Body/MPV (9K9A), CADDY II MPV (9K9B), GOLF III (1H1), GOLF III Cabriolet (1E7), GOLF III Variant (1H5), GOLF IV Cabriolet (1E7), PASSAT B3/B4 (3A2, 35I), PASSAT B3/B4 Variant (3A5, 35I), PASSAT B5 (3B2), PASSAT B5 Variant (3B5) (+4 more) |
|---|---|
| Engines | 1.9 D; 1.9 TD; 1.9 TDI; 1.9 SDI; 1.7 D; 110 1.9 TDI; 1.7 SDI |
| Year of manufacture | 1986-2010 |
| Manufacturer article number (MPN) | 21F9000-OYO |
| OE part numbers | 028 129 101, 028 129 101D |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
Oyodo 21f9000-oyo . 21F9000-OYO
- 1x Valve Crankcase Ventilation
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Valve Crankcase Ventilation compatible with my car?
This Valve Crankcase Ventilation fits AUDI, SEAT, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this Oyodo Valve Crankcase Ventilation have?
The package includes the Valve Crankcase Ventilation as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Valve Crankcase Ventilation replace?
This Valve Crankcase Ventilation replaces OE part numbers: 028 129 101, 028 129 101D. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Valve Crankcase Ventilation cost?
This Oyodo Valve Crankcase Ventilation is available for £16.99. Valve Crankcase Ventilation prices vary depending on brand, specifications, and vehicle compatibility. Oyodo parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Valve Crankcase Ventilation?
Regular inspection of your Valve Crankcase Ventilation is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Valve Crankcase Ventilation?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Valve Crankcase Ventilation fitted by a professional mechanic.
Can I use this part as a replacement for OE 028 129 101?
Yes, this Oyodo Valve Crankcase Ventilation is a direct replacement for OE part number 028 129 101. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
