The 803682655 Push Button is a genuine OEM momentary switch manufactured by XCMG for motor graders and heavy construction machinery. This robust push button provides reliable momentary contact for horn activation, light flashing, diagnostic triggers, and other operator-initiated functions.
Designed to withstand extreme vibration, dust, moisture, and temperature variations, the 803682655 push button features an IP67-rated sealed body and stainless steel plunger. It directly replaces failed or sticky push buttons on XCMG GR series graders and compatible equipment.
Each unit is rated for 5A at 24V DC, making it suitable for low-current control circuits, pilot relays, and direct horn switching. The momentary (normally open) operation ensures positive tactile feedback and long service life in demanding environments.
| Parameter | Specification |
|---|---|
| OEM Number | 803682655 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Momentary Push Button Switch (Normally Open) |
| Switch Function | SPST – momentary, spring return |
| Contact Rating | 5A @ 24V DC (resistive), 3A @ 24V DC (inductive) |
| Terminal Type | 2 x 6.3mm quick-connect (spade terminals) |
| Actuator Material | Stainless steel plunger with black rubber boot |
| Panel Cutout | 16mm diameter (standard round hole) |
| Mounting Thread | M16 x 1.5, includes hex nut and lock washer |
| Ingress Protection | IP67 (front panel and body sealed) |
| Operating Temperature | -40°C to +85°C |
| Electrical Life | 50,000 cycles at rated load |
| Mechanical Life | 200,000 cycles |
| Contact Resistance | < 20 mΩ (initial) |
| Insulation Resistance | > 100 MΩ at 500V DC |
| Dielectric Strength | 1500V AC for 1 minute |
| Housing Material | Black nylon 6/6 (UL94 V-0 flame retardant) |
| Plunger Travel | 2.5 mm ±0.5 mm |
| Operating Force | 5 N ± 1 N |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350 motor graders |
| Certifications | CE, RoHS, ISO 9001:2015, IATF 16949 |
The XCMG 803682655 Push Button is engineered for applications requiring a momentary, normally open contact. When pressed, the internal spring-loaded mechanism closes the circuit, and when released, it returns to the open position. This design is ideal for horn activation, light flasher triggers, diagnostic mode entry, and any function that should not remain active after release.
Unlike cheap automotive push buttons, the 803682655 is built to withstand the high-vibration environment of motor graders. The stainless steel plunger resists corrosion and wear, while the internal silver-alloy contacts provide consistent low resistance over thousands of cycles. The black rubber boot adds an extra layer of sealing against dust and moisture.
The switch delivers positive tactile feedback – a distinct click when the contacts snap closed. This allows operators to confirm activation without looking at the switch, improving safety and efficiency.
The 803682655 push button is a direct physical and electrical replacement for the original equipment on XCMG GR series motor graders. It is commonly used for the horn switch, hazard light override, differential lock activation, and diagnostic trigger. The 16mm panel cutout and M16 threaded bushing match the original mounting hole.
Installation is straightforward: disconnect the battery, remove the old push button by unscrewing the retaining nut from behind the panel, disconnect the two wires, and connect them to the new 803682655 (polarity insensitive for SPST). Push the switch into the panel, secure with the nut, and reconnect the battery. Test the function.
Common failure symptoms: button feels sticky or does not return, no click when pressed, intermittent function, or high resistance measured across contacts. Replacing with the genuine XCMG part restores positive tactile response and reliable circuit closure.
XCMG designed the 803682655 push button to survive the harshest conditions found in mining, road construction, and agriculture. The housing is molded from UL94 V-0 flame-retardant nylon, and the internal mechanism uses stainless steel springs and hardened brass contacts. The IP67 rating means it is completely dust-tight and can withstand temporary immersion in water.
Each production batch is tested to 500 hours of salt spray (ASTM B117) with no visible corrosion, 100 thermal shock cycles from -40°C to +85°C, and 20g vibration for 24 hours across 10-2000Hz. The switch is also subjected to 50,000 electrical cycles at rated load with no contact welding or excessive resistance increase.
The rubber boot (integrated) provides a secondary seal against pressure washing. The stainless steel plunger resists pitting and maintains smooth operation even after exposure to diesel, hydraulic fluid, and road salt.
Aftermarket push buttons often use plastic plungers that crack under repeated impact, or tin-plated contacts that corrode and increase resistance. The genuine XCMG switch features a stainless steel plunger and silver-alloy contacts, ensuring long-term reliability. The rubber boot on aftermarket switches may be made of low-grade rubber that hardens and cracks in cold weather, allowing moisture ingress.
Counterfeit switches may have a lower IP rating (e.g., IP54) and lack the internal sealing gasket, leading to premature failure. The 803682655 is fully sealed and tested to IP67 standards. Additionally, the operating force and tactile feel of genuine XCMG switches are calibrated to reduce operator fatigue during long shifts.
XCMG provides a 12-month unlimited-hour warranty against manufacturing defects. Each switch is laser-etched with the XCMG logo and part number for traceability. This supersedes older numbers 803682501, 803682588, and 803682612.
When installing the 803682655 push button, ensure the panel cutout is clean and free of burrs. Apply a small amount of dielectric grease to the spade terminals before attaching the wires to prevent corrosion. Do not over-tighten the mounting nut – torque to 2-3 Nm only, as overtightening can crack the housing.
If the push button is used to switch an inductive load (e.g., a relay coil), consider adding a flyback diode across the load to prevent contact arcing and extend switch life. The 803682655 is rated for 3A inductive, but for high-current horns or motors, use a relay.
To test the switch, disconnect the wires and measure resistance across the terminals with a multimeter. In the released position, resistance should be infinite (open). When pressed, resistance should drop to < 0.5 ohms. If resistance is erratic or high, replace the switch.
The 803682655 Push Button is stocked in XCMG’s regional warehouses in North America (Houston), Europe (Rotterdam), Middle East (Dubai), and Asia (Shanghai). Standard air freight delivers within 3-7 business days worldwide. Expedited shipping (1-2 days) is available for urgent repairs.
Bulk orders (10+ pieces) receive volume discounts and can be shipped via sea freight. Each push button is individually bagged with desiccant and anti-static protection. For large fleets, consignment stock programs ensure immediate availability and reduced downtime.
Don’t let a failed push button compromise operator safety or machine control. Order the genuine XCMG 803682655 Push Button today and experience the reliability of OEM components – designed for the toughest conditions, backed by XCMG’s quality promise.
The 803682655 Push Button is a small but essential component for maintaining your motor grader’s operator interface. Whether it controls the horn, a work light flasher, or a diagnostic trigger, this genuine XCMG switch delivers consistent performance and positive tactile feedback.
Upgrade or replace your worn push buttons today. The XCMG 803682655 offers superior sealing, corrosion resistance, and mechanical durability – everything you expect from original equipment. Order now and keep your grader productive and safe in any environment.
