Agricultural Machinery
Agricultural machinery operates in harsh environments with high vibration, dust, moisture and extended duty cycles. Battery switch relays are critical in these machines, managing high current loads for starting and powering auxili
What Goes Wrong in This Application
Pain Points
- Battery switch relays that fail due to arcing and contact welding under high current loads
- Relays that degrade from vibration and dust ingress in unsealed or poorly shielded enclosures
- Long lead times for replacement parts on older tractor and harvester models still in active use
- Inconsistent part numbers across different manufacturers, making stock management difficult
- Depots forced to hold multiple variants of the same relay type due to lack of cross-referencing
What Buyers Need
- Relays that match the OEM part number and electrical specifications for direct replacement
- High reliability under continuous high current switching in 12V and 24V systems
- Consistent supply of the same part number to standardise inventory across a mixed fleet
- Packaging suitable for storage in agricultural workshop warehouses, not retail displays
- A warranty that covers parts stored in stock before installation
Recommended Parts
16 catalogue items map to this application.












Typical Scenarios
- Replacing battery switch relays on a fleet of older tractors still in daily operation
- A repair shop sourcing a single relay for a harvester with no current OEM availability
- A parts distributor building a stock list for agricultural vehicle maintenance
- An OEM service provider requiring exact replacements for field service kits
How an Order Runs
Send the OEM number or a photograph of the original relay from the machine in service
We confirm the voltage, pin count, current rating and fitment against the catalogue
Free samples are provided for testing on the actual machine before bulk order commitment
Order confirmed with agreed packaging, delivery date and payment terms in writing
All units are function tested before shipment and shipped as a consolidated order
Delivery and Terms
- 7 to 10 working days on fast-moving stocked items
- Up to 40 days on production orders
- Neutral packing, customised packing or CHINO branded boxes
- 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.
Related Guides
How to Choose a Flasher Relay for Heavy Trucks
A flasher relay controls the on-off cycle of the turn signals in a commercial vehicle. It receives a signal from the steering colu
Truck Starter Relay Failure Symptoms and Diagnosis
A starter relay is the high-current switch in the starting circuit. When the ignition key is turned, the relay closes a heavy cont
Brake Light Switch and Back Lamp Switch Explained
The brake light switch is a safety device that closes the circuit when the brake pedal is pressed, sending power to the stop lamps
Questions From Agricultural Machinery Buyers
Can you supply battery switch relays for tractors and harvesters no longer in production?
Yes. Use the number from the original relay or send a photo of the unit. We match the voltage, pin count and current rating to confirm availability.
Do you supply relays for both 12V and 24V systems?
Yes. Our catalogue includes battery switch relays rated for both 12V and 24V, with current ratings up to 100A.
What is the minimum order quantity?
10 pcs per catalogue item. Small trial orders are accepted.
Can I get free samples?
Yes. Samples are free of charge. The buyer covers freight costs.
How are the relays tested before delivery?
Every relay undergoes 100% leakage test and performance parameter verification in our in-house laboratory. Production follows IATF 16949:2016 standards.
What warranty applies to parts stored in a workshop?
12 months from the B/L date. Stock held in storage is covered when it is fitted.
Can I order a mixed list of relays and switches?
Yes. We consolidate multiple part numbers into one shipment. Send the list of OEM numbers and we will quote as a single order.
Send Your Agricultural 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.

