Back Lamp Switch for MITSUBISHI MC859186 ON-OFF
A mechanical ON-OFF back lamp switch for MITSUBISHI MC859186, fitted to the reverse light circuit of MITSUBISHI trucks and commercial vehicles. It operates via push control with a normally closed contact and is designed for use in reverse light systems. The switch has a M14X1.5 thread and 24mm spanner size. 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
- Direct OEM cross-reference to MITSUBISHI MC859186, MC137277, MC134277, BS-4277 and BS4277 for accurate fitment
- Mechanical push control with normally closed contact ensures reliable reverse light activation on demand
- M14X1.5 thread and 24mm spanner size match the original installation, no modification needed
- Robust construction suitable for harsh commercial vehicle environments with vibration and moisture exposure
- 12 month warranty from B/L date provides confidence in long-term reliability
- Available in 10 pcs MOQ, enabling small trial orders for market testing
Application Scenarios
Where It Is Used
- Fleet workshops replacing failed reverse light switches on MITSUBISHI trucks after repeated circuit faults
- Aftermarket distributors stocking MITSUBISHI electrical switches for mixed commercial vehicle fleets
- Body builders installing reverse lights on new chassis with original MITSUBISHI switch pattern
- Repair chains diagnosing reverse lights that stay on continuously or fail to illuminate when in reverse
Who It Is For
- Truck parts importers sourcing MITSUBISHI OEM replacements
- Aftermarket distributors serving MITSUBISHI truck and bus fleets
- Fleet maintenance managers maintaining MITSUBISHI commercial vehicles
- Auto electrical repair shops that stock switches by OEM number and thread size
Problems It Solves
Symptoms on the Vehicle
- Reverse lights that remain on due to a stuck or failed normally closed switch contact
- Reverse lights that do not activate when the gear is shifted into reverse
- Original MITSUBISHI switches that are difficult to source through dealers or have long lead times
- Inconsistent fitment when using generic or non-OEM switches with incorrect thread or spanner size
Technical Features
- Mechanical push control operation with normally closed contact
- ON-OFF switching function for reverse light circuit
- M14X1.5 thread size for secure mounting in the vehicle body
- 24mm spanner size for installation and removal with standard tools
- Sealed construction to resist dust and moisture ingress in outdoor 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 | MC859186, MC137277, MC134277, BS-4277, BS4277 |
|---|---|
| Reference No | MC859186, MC137277, MC134277, BS-4277, BS4277 |
| Type | Back lamp switch |
| Driving Type | Mechanical |
| Operation Type | Push control |
| Contact | Normally Closed; ON-OFF |
| Thread Size | M14X1.5 |
| Spanner | 24 |
| Application | MITSUBISHI trucks and commercial vehicles |
| 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 switch housing
- Stainless steel threaded body
- Copper alloy contact terminals
- Rubber sealing ring for environmental protection
Quality Control
- 100 percent function test before delivery
- Performance parameters checked 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 finishing
Contact terminal stamping and plating
Housing moulding with integrated sealing
Final assembly with mechanical 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
| MITSUBISHI dealer original switch | Same fitment and function at aftermarket pricing, but without the dealer part number on the box unless branded packaging is ordered |
|---|---|
| Generic push switch with M14 thread | This unit has the correct 24mm spanner size and normally closed contact; generic switches may not match the spanner or contact type |
| Used or reclaimed switch | New units carry a 12 month warranty from B/L date; reclaimed stock carries no warranty and may have degraded contacts |
Use Guide
- Match the M14X1.5 thread and 24mm spanner size against the old switch before ordering
- Isolate the battery, remove the old switch from the body panel, and install the replacement with the same orientation
- Test the reverse light function in both ON and OFF states before releasing the vehicle
- If the light does not activate, check the reverse gear signal and wiring continuity before condemning the switch
Also Listed Under
Questions About This Part
Which MITSUBISHI models does MC859186 fit?
It is listed for MITSUBISHI trucks and commercial vehicles. 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 MITSUBISHI MC859186 ON-OFF
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.