Back Lamp Switch for Mercedes-Benz Passenger Bus 000 545 1806 0005451806 ZF 0501 203 944 0501203944
A normally open, OFF-ON reversing light switch with M27X1 thread, cross referencing Mercedes-Benz 000 545 1806, 0005451806, BENZ 000 545 2806, 0015457614, 0015453014, 0005455906, ZF 0501 203 944, 0501203944, MAN 81.27421.0056, 81274210056, DT 4.60817, FAE 40430. It is fitted to Mercedes-Benz passenger buses and activates the reversing lights when the transmission is shifted into reverse. Supplied in neutral, customised or CHINO branded packaging with a 12 month warranty from B/L date.
MOQ 10 pcs · Free samples, freight at your cost · Neutral or own brand packing · 12 month warranty from B/L date
Key Benefits
- Cross references eight OEM part numbers, reducing the need for multiple SKUs in fleet maintenance
- M27X1 thread and 27mm spanner size match the original installation hole and tooling, no modification required
- Normally open contact ensures reversing lights only activate when the transmission is in reverse
- Direct plug-in replacement with no rewiring or adapter needed for the original harness
- Ships in 7 to 10 working days as a stocked fast-moving item
- 12 month warranty from B/L date covers failures due to manufacturing defects
Application Scenarios
Where It Is Used
- Fleet workshops replacing failed reversing light switches on Mercedes-Benz passenger buses after long-term exposure to vibration and moisture
- Aftermarket distributors restocking critical safety switches for European bus fleets
- Repair chains diagnosing reversing lights that do not illuminate when in reverse
- Bus body builders integrating the switch into new chassis builds with original Mercedes-Benz electrical layouts
Who It Is For
- Truck and bus parts importers sourcing against Mercedes-Benz OEM numbers
- Aftermarket distributors serving European bus fleets with a focus on safety components
- Fleet maintenance managers responsible for Mercedes-Benz passenger bus safety compliance
- Auto electrical repair shops that stock switches by thread size and contact type
Problems It Solves
Symptoms on the Vehicle
- Reversing lights that fail to activate due to a stuck or open contact in the original switch
- Switches that are difficult to source through official Mercedes-Benz channels at high cost
- Incorrect replacements with wrong thread size or contact type causing installation delays
- Multiple part numbers needed for different Mercedes-Benz bus models that can be consolidated into one
Technical Features
- Normally open contact for safe default state when not in reverse
- M27X1 thread for secure mounting in the original bulkhead hole
- 27mm spanner size for standard tooling compatibility
- Sealed construction to resist moisture and vibration in bus underbody environments
Specifications
Only values printed on the original product page are listed. Anything not shown here we confirm in writing before you order.
| OEM No | 000 545 1806, 0005451806, BENZ 000 545 2806, 0015457614, 0015453014, 0005455906, ZF 0501 203 944, 0501203944, MAN 81.27421.0056, 81274210056, DT 4.60817, FAE 40430 |
|---|---|
| Reference No | 0005451806, 0015457614, 0015453014, 0005455906, 0501203944, 81274210056, 4.60817, 40430 |
| Type | Back lamp switch |
| Contact | Normally open; OFF-ON |
| Thread | M27X1 |
| Spanner | 27mm |
| Application | Mercedes-Benz passenger bus |
| Place of Origin | Ruian, China |
| MOQ | 10 pcs |
| Delivery Time | 7-10 working days |
| Packing | Neutral, customised or CHINO box |
| Warranty | 12 months since B/L date |
| Certification | ISO 9001:2015 |
Materials and Manufacturing
Materials
- Moulded thermoplastic housing with sealing gasket
- Stainless steel threaded body with M27X1 thread
- Copper alloy contact terminals
- Spring-loaded actuator mechanism
Quality Control
- 100 percent leakage test before delivery
- Performance parameters tested in the in-house laboratory
- Component materials sourced from named suppliers under the IATF 16949:2016 documented process
- Production and test steps recorded on video
Manufacturing Process
Threaded body machining and surface treatment
Contact terminal stamping and plating
Housing moulding with integrated seal
Final assembly with spring and actuator
Electrical function test and leakage test
Customization Options
- Neutral packing with no brand marking
- Customer branded box and barcode label
- CHINO branded retail box
- OEM and ODM builds against a sample or drawing
Compared With the Alternatives
| Mercedes-Benz dealer original switch | Same fitment and function at aftermarket pricing; no dealer part number on box unless branded packaging is ordered |
|---|---|
| Universal reversing switch with adjustable thread | The M27X1 thread is fixed and matches the original; universal switches require thread adapters and may not seal properly |
| Used or reclaimed switch from salvage | New units carry a 12 month warranty from B/L date; reclaimed units carry no warranty and may have worn contacts |
Use Guide
- Match the M27X1 thread and 27mm spanner size against the old switch before ordering
- Disconnect the battery, remove the old switch from the bulkhead, and install the replacement with the same orientation
- Test the reversing lights when shifting into reverse before releasing the vehicle
- If the lights still do not activate, check the transmission reverse signal and wiring continuity before condemning the switch
Also Listed Under
Questions About This Part
Which Mercedes-Benz bus models does 0005451806 fit?
Send us your chassis number and we will confirm against the original relay before you order.
What is the minimum order quantity?
10 pcs on catalogue items. We also accept small trial orders so you can test the part in your own market first.
How long is delivery?
7 to 10 working days for fast moving items held in stock. Production orders take longer and we confirm the date in writing when the order is placed.
Can I get the parts in my own packaging?
Yes. We supply neutral packing, your own branded box with barcode label, or the CHINO box. Artwork is confirmed before printing.
What warranty do you give?
12 months from the B/L date. If a unit fails within that period we take responsibility when the fault is caused by the part, and we reply to any complaint within 24 hours with a solution within 3 days.
Are samples free?
The sample itself is free of charge. We discuss the freight cost with you before shipping.
How do you control quality?
Every part is function tested before delivery and performance parameters are checked in our own laboratory. Components come from named suppliers and production follows the IATF 16949:2016 documented process.
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Ask for a Quote on Back Lamp Switch for Mercedes-Benz Passenger Bus 000 545 180
Send the number printed on your original unit and a photograph of the connector. We confirm the match before you order and send a free sample first.