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Details
| Specification | Value |
|---|---|
| Brand | FAST |
| MPN | ft50423 |
| Voltage [V] | 12 V |
OE/OEM numbers (2)
About this product
FAST Throttle Body (FT50423) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Voltage [V]: Zinc V — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, BERTONE, CITROËN, DAIHATSU and 8 other makes vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 07.14.227, 0892438, 107020, 11281483201 and 76 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FAST 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Throttle Body buying guide
Why replace this part?
The throttle body controls the volume of air entering the engine in response to accelerator pedal position. Carbon buildup on the throttle plate causes rough idle, stalling, and poor throttle response. Electronic throttle bodies can also fail mechanically or electrically.
Signs you need a replacement
- Rough or unstable idle
- stalling at low speed
- poor throttle response
- check engine light with throttle position codes
- hunting idle after a cold start
When to replace
Clean every 50,000 miles with throttle body cleaner. Replace if the bore is worn or if the electronic actuator fails.
Suitable cars
Equivalent products (83)
Show all 83 OE numbers
Throttle Body FAST FT50423 — compatible car models
| Car models | AUDI: A2 (8Z0), A4 B6 Avant (8E5); BERTONE: FREECLIMBER 2; CITROËN: C3 I (FC, FN); DAIHATSU: EXTOL Bus (S22, S23); ISUZU: TROOPER I Open Off-Road Vehicle (UBS); MG: MG ZS; MITSUBISHI: OUTLANDER I (CUW); PEUGEOT: 406 Break (8E/F); SEAT: CORDOBA (6L2), IBIZA III (6L1), INCA (6K9); SKODA: FABIA I (6Y2), FABIA I Combi (6Y5), FABIA II (542), FABIA II Combi (545), FABIA I Praktik (6Y5), FABIA I Saloon (6Y3), ROOMSTER (5J7), ROOMSTER Praktik (5J); VAUXHALL: SIGNUM (Z03); VW: FOX Hatchback (5Z1, 5Z3, 5Z4), PASSAT B6 Variant (3C5), POLO IV (9N, 9A), POLO IV Saloon (9A4, 9A2, 9N2, 9A6), TRANSPORTER T4 Van (70A, 70H, 7DA, 7DH) |
|---|---|
| Engines | 1.4 TDI; S4 quattro; 1.6; 1.4 16V HDi; 1.3; 2.2 D (UBS52); 2.0 TD; 2.4 4WD (CU4W); 1.8; 1.6 i; 1.9 CDTI 16V; 1.6 FSI; 2.5 TDI |
| Year of manufacture | 1983-2015 |
| Manufacturer article number (MPN) | FT50423 |
| OE part numbers | 45128063D, 45128063G |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FAST ft50423 . Voltage [V]: 12 V
- 1x Throttle Body
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Throttle Body compatible with my car?
This Throttle Body fits AUDI, BERTONE, CITROËN, DAIHATSU, ISUZU and 7 more 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 FAST Throttle Body have?
This FAST Throttle Body has the following specifications: Voltage [V]: 12 V. Check the full specifications table above for complete details.
What OE part numbers does this Throttle Body replace?
This Throttle Body replaces OE part numbers: 45128063D, 45128063G. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Throttle Body cost?
This FAST Throttle Body is available for £155.99. Throttle Body prices vary depending on brand, specifications, and vehicle compatibility. FAST parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Throttle Body?
Watch for rough or erratic idle, hesitation or stumbling during acceleration, poor fuel economy, black smoke from the exhaust, or a check engine light related to throttle position or idle control.
What tools do I need to replace a Throttle Body?
Tools needed: T20/T25 Torx or 8mm socket, electrical contact cleaner, new throttle body gasket, torque wrench. Difficulty: Moderate DIY. Safety warning: After fitting a new throttle body, a throttle position relearn procedure using a diagnostic tool is usually required -- without this, the engine may idle poorly or not at all.
Can I use this part as a replacement for OE 45128063D?
Yes, this FAST Throttle Body is a direct replacement for OE part number 45128063D. 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.
