Battery Switch Relay DK238 24V 100A
A 24V 100A battery switch relay that cross references OEM DK238, fitted to ISUZU and KOMATSU commercial vehicles, including trucks, excavators, engineering machinery and buses. It controls the main battery circuit to isolate the battery when the vehicle is off, preventing parasitic drain. 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 DK238 for ISUZU and KOMATSU, simplifying procurement for mixed fleet operators
- 100A capacity handles high current draw in heavy-duty vehicle electrical systems
- 24V operation matches the standard voltage of ISUZU and KOMATSU commercial vehicles
- Direct plug-in replacement with no wiring modifications required
- 12 month warranty from B/L date provides financial protection on high-value components
- Ships in 7 to 10 working days as a stocked fast-moving item
Application Scenarios
Where It Is Used
- Fleet workshops replacing failed battery switch relays on ISUZU trucks after prolonged battery drain issues
- Aftermarket distributors stocking battery relays for KOMATSU excavators and engineering vehicles
- Repair chains diagnosing vehicles that fail to start due to a stuck or open battery relay
- Body builders integrating battery control into new cab installations for ISUZU chassis
Who It Is For
- Truck parts importers sourcing ISUZU and KOMATSU electrical components by OEM number
- Aftermarket distributors serving construction and mining equipment fleets
- Fleet maintenance managers running ISUZU and KOMATSU vehicles with high battery usage
- Repair shops that need reliable battery switch relays for heavy-duty vehicle diagnostics
Problems It Solves
Symptoms on the Vehicle
- Vehicles that fail to start due to a failed battery switch relay preventing power delivery
- Parasitic battery drain caused by a relay that does not fully disconnect the battery
- High cost and long lead times for original DK238 relays from ISUZU or KOMATSU dealers
- Relays that overheat or weld contacts under high load due to insufficient current rating
Technical Features
- 100A switching capacity for high-current battery circuits in commercial vehicles
- 24V DC operation compatible with ISUZU and KOMATSU vehicle electrical systems
- Single-pole, normally open contact configuration for battery isolation
- Sealed relay housing suitable for under-hood or engine compartment mounting
- Direct fitment to original mounting bracket and wiring loom
- Designed for use in trucks, excavators, engineering machinery and buses
Specifications
Only values printed on the original product page are listed. Anything not shown here we confirm in writing before you order.
| OEM No | DK238, DK138 |
|---|---|
| Voltage | 24V |
| Current Rating | 100A |
| Type | Battery switch relay |
| Application | ISUZU, KOMATSU, 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
- Moulded thermoplastic relay housing
- Copper alloy contact blades
- Electromagnetic coil with insulated wire
- Spring-loaded contact mechanism
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
Contact blade stamping and plating
Coil winding and insulation
PCB and terminal assembly
Housing moulding and component insertion
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
| ISUZU or KOMATSU dealer original DK238 | Same fitment and performance at lower cost, with no dealer markup; original part number not on box unless branded packaging is ordered |
|---|---|
| Generic 12V battery relay | The 24V 100A unit is designed for heavy-duty commercial vehicles; a 12V relay will not operate correctly and may fail under load |
| Used or reconditioned relay | New units carry a 12 month warranty from B/L date; reconditioned stock offers no warranty and may have degraded contacts |
Use Guide
- Confirm the vehicle is a 24V system before fitting
- Match the relay housing and mounting pattern against the original before ordering
- Disconnect the battery, remove the failed relay from the control panel, and install the replacement in the same orientation
- Test the relay by turning the ignition on and verifying the battery circuit closes properly
- If the relay clicks but the battery does not connect, check the wiring and ground connection before replacing the relay
Also Listed Under
Questions About This Part
Which vehicles use the DK238 relay?
It is fitted to ISUZU and KOMATSU trucks, excavators, engineering machinery and buses. Send your chassis number and we will confirm fitment before you order.
What is the minimum order quantity?
10 pcs on catalogue items. We accept small trial orders to test the part in your market.
How long is delivery?
7 to 10 working days for stocked items. Production orders take longer; we confirm the delivery date in writing when the order is placed.
Can I get the parts in my own packaging?
Yes. We offer neutral packing, your 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 due to a manufacturing fault, we take responsibility and respond to complaints 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. Performance parameters are checked in our in-house laboratory. Components come from named suppliers and production follows the IATF 16949:2016 documented process.
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Ask for a Quote on Battery Switch Relay DK238 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.