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Details
| Specification | Value |
|---|---|
| Brand | WABCO |
OE/OEM numbers (4)
Where this part fits
Original-fit position for OE 1103983. The red ring marks where this part installs on the vehicle.
About this product
Sourced from WABCO, this trailer modulator (4801020300) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. This part supersedes original equipment references: 1103983, 160722, 30016296, 759010019 and 1 more. Matching these numbers confirms a like-for-like replacement with no loss of function. WABCO 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (1)
Trailer Modulator WABCO 4801020300 — compatible car models
| Manufacturer article number (MPN) | 4801020300 |
|---|---|
| OE part numbers | 1103983, 30016296, 759010019, ZG147270007 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
WABCO 4801020300
- 1x Trailer Modulator
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 Trailer Modulator compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Trailer Modulator fits. All fitment data is verified through TecDoc.
What specifications does this WABCO Trailer Modulator have?
The package includes the Trailer Modulator 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 Trailer Modulator replace?
This Trailer Modulator replaces OE part numbers: 1103983, 30016296, 759010019, ZG147270007. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Trailer Modulator cost?
This WABCO Trailer Modulator is available for £1256.99. Trailer Modulator prices vary depending on brand, specifications, and vehicle compatibility. WABCO parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Trailer Modulator?
Regular inspection of your Trailer Modulator 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 Trailer Modulator?
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 Trailer Modulator fitted by a professional mechanic.
Can I use this part as a replacement for OE 1103983?
Yes, this WABCO Trailer Modulator is a direct replacement for OE part number 1103983. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the WABCO 4801020300 the same as the WABCO 4801020330?
No, while both are Trailer Modulator parts, they are different products. The WABCO 4801020300 has specific dimensions, material composition, and fitting requirements. The WABCO 4801020330 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
