Construction and Engineering Machinery
Construction and engineering machinery operate in harsh environments where electrical components face extreme vibration, dust, moisture and repeated high-current switching. Starter relays and battery switch relays are critical for
What Goes Wrong in This Application
Pain Points
- Starter relays that fail under repeated high-current cranking cycles in excavators and loaders
- Battery switch relays that degrade from exposure to dust and vibration in dump trucks
- Lack of consistent replacement parts for older KOMATSU and FAW models still in active service
- Depots forced to keep multiple SKUs for the same function across different chassis types
- Long lead times from original suppliers on discontinued or legacy parts
- Relays that do not match the original pin count or voltage, requiring rewiring or adapters
What Buyers Need
- OEM cross-referenced replacement relays with exact pin count, voltage and current rating
- Relays that match the original connector and mounting style for plug-and-play fit
- A single supplier who can provide multiple relay types from one catalogue for engineering fleets
- Parts tested to function under real-world duty cycles before delivery
- Warranty that covers parts stored in depot stock, not just those already installed
Recommended Parts
20 catalogue items map to this application.












Typical Scenarios
- Maintenance team replacing starter relays across a fleet of KOMATSU excavators with HINO-based electrical systems
- Site workshop sourcing battery switch relays for FAW J6 dump trucks still in daily operation
- Procurement manager consolidating a list of 15 relay types for a construction equipment dealer
- Fleet operator standardising on one battery switch relay model across multiple brands and models
How an Order Runs
Send the OEM number, voltage, pin count and a photograph of the original relay from the machine in service
We confirm the part matches the original specification and check availability in our catalogue
Free samples are sent for fit and function testing on the actual equipment
Once approved, order confirmed with packing, labelling and delivery date agreed in writing
All relays are 100% function tested before shipment and shipped as a single consolidated order
Delivery and Terms
- 7 to 10 working days on fast-moving items held in stock
- Up to 40 days on production orders
- Neutral packing, customer branded or CHINO branded box
- T/T, D/P, L/C, PayPal, Western Union or Alibaba Trade Assurance
- 12 month warranty from B/L date
Solutions
OEM and ODM Development
Build your own part number from a sample, a drawing or a failed original, made on the same line as our catalogue range.
Private Label and Packaging
Put your own brand on the box without changing supplier, part number or lead time.
Quality Assurance and Testing
What is actually tested, what it is tested with, and what happens when a part fails in the field.
Sourcing and Logistics
How an enquiry becomes a delivered container, with the payment and lead time terms stated up front.
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Questions From Construction and Engineering Machinery Buyers
Can you supply starter relays for HINO 0590 017 0915 24V?
Yes. This part is in our catalogue and available for immediate shipment. We confirm the pin count and voltage match the original.
Do you have battery switch relays for FAW J6 trucks?
Yes.
What if the original relay has no number printed?
Send a clear photograph of the connector and mounting style. We match it to the correct OEM cross-reference in our database.
Can we order mixed relay types in one order?
Yes. We accept mixed orders across starter relays, battery switch relays and other types. Send the list of OEM numbers and we quote as one shipment.
What is the minimum order quantity?
10 pcs per catalogue item. Small trial orders are accepted for new part numbers.
How are the relays tested before delivery?
Every relay is function tested and performance parameters verified in our in-house laboratory. 100% leakage test is performed on all units.
Is there a warranty on parts stored in depot?
Yes. The 12 month warranty starts from the B/L date, so stock held in storage is covered when fitted.
Send Your Construction and Engineering Machinery Parts List
Give us the OEM numbers from the vehicles in service. We confirm each one, send free samples, and quote the whole list as one order.

