Starter Relay for MAN 51259020077 24V 100A
A 24V 100A starter relay that cross references MAN 51259020077, SCANIA 1548710, KHD 04213330, 4213330, SINOTRUK Weichai DKJ2943A 1337 210 726, 1337210726, and BOSCH 0333 006 025, 0333006025. It is fitted to commercial trucks, excavators, engineering vehicles, and buses. The relay controls the high-current circuit from the battery to the starter motor when the ignition switch is activated. 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 five OEM part numbers so one line item covers multiple vehicle platforms
- 100A rated contact capacity handles high inrush current from large diesel starter motors
- 24V operation matches the standard voltage of heavy-duty commercial vehicles
- Zinc-plated or white-plated finish resists corrosion in harsh outdoor environments
- Plugs directly into the original wiring harness with no modification required
- Ships in 7 to 10 working days as a stocked fast-moving item
Application Scenarios
Where It Is Used
- Fleet maintenance teams replacing failed starter relays on MAN trucks after repeated cold start attempts
- Aftermarket distributors stocking relays for mixed fleets including MAN, SCANIA, and SINOTRUK vehicles
- Excavator and engineering vehicle workshops replacing relays that fail due to vibration and dust ingress
- Repair chains diagnosing no-crank conditions where the starter motor does not engage
Who It Is For
- Truck parts importers sourcing against MAN and SCANIA OEM numbers
- Aftermarket distributors serving European and Chinese commercial vehicle fleets
- Fleet maintenance managers running MAN and SINOTRUK trucks and buses
- Repair shops that need reliable starter relays with known cross-references
Problems It Solves
Symptoms on the Vehicle
- Starter motor that does not engage due to a failed relay contact or coil
- Intermittent starting caused by a relay with degraded internal contacts
- Original relays that are expensive and slow to source through dealer networks
- Mixed vehicle fleets that would otherwise require five separate relay part numbers
Technical Features
- 100A high-current contact rating for reliable starting under load
- 24V DC system voltage for commercial vehicle electrical systems
- Zinc-plated or white-plated metal housing for corrosion resistance
- Electromagnetic coil actuation with built-in protection against back EMF
- Sealed construction to resist dust and moisture 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 | MAN 51259020077, SCANIA 1548710, KHD 04213330, 4213330, SINOTRUK Weichai DKJ2943A 1337 210 726, 1337210726, BOSCH 0333 006 025, 0333006025 |
|---|---|
| Reference No | MAN 51259020077, SCANIA 1548710, KHD 04213330, 4213330, SINOTRUK Weichai DKJ2943A 1337 210 726, 1337210726, BOSCH 0333 006 025, 0333006025 |
| Type | Starter relay |
| Voltage | 24V |
| Current Rating | 100A |
| Application | Truck, Excavator, Engineering Vehicle, 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
- Zinc-plated or white-plated steel relay housing
- Copper alloy contact terminals
- Electromagnetic coil with insulated wire
- Insulating plastic base and cover
Quality Control
- 100 percent function 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
Terminal stamping and plating
Coil winding and assembly
Contact and spring assembly
Housing moulding and finishing
Final assembly and potting
Electrical function 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
| MAN dealer original relay | Same fitment and current rating at aftermarket pricing, but without the dealer part number on the box unless you order branded packaging |
|---|---|
| Used or reclaimed relays | New units carry a 12 month warranty from B/L date; reclaimed stock carries none and may have degraded contacts or insulation |
Use Guide
- Confirm the vehicle is a 24V system before fitting
- Isolate the battery, disconnect the failed relay from the starter solenoid or control panel, and install the replacement in the same orientation
- Test the relay by turning the ignition key to start; the starter should engage without delay or hesitation
- If the starter does not engage, check the battery voltage, ignition switch output, and earth connection before condemning the relay
Also Listed Under
Questions About This Part
Which vehicles use MAN 51259020077?
It is used on MAN trucks, SCANIA trucks, SINOTRUK vehicles with Weichai engines, and other commercial vehicles including excavators and buses. Send your chassis number and we will confirm fitment.
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 Starter Relay for MAN 51259020077 24V 100A
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.