OEM 800169688 The XCMG 3035844 Thermostat Housing 800169688 is a genuine OEM coolant housing engineered to hold the thermostat and route coolant on XCMG hydraulic excavators.
Identified by part number 800169688, this factory-made housing mounts to the cylinder head and provides the sealed chamber where the thermostat regulates engine temperature.
It is cast from high-strength iron or aluminium alloy, then machined on the sealing faces, bolt holes, and coolant ports to exact OEM geometry.
Exact OEM bolt pattern, port size, and gasket surface allow direct replacement without filing, drilling, or adding sealant on site.
By holding the thermostat square and sealing the coolant path, this housing prevents leaks, air pockets, and unstable engine temperature.
The 800169688 Thermostat Housing is cast and machined from high-strength metal that resists pressure, heat, and thermal cycling.
The thermostat seat and sealing face are machined to the XCMG drawing, so the valve sits square and the gasket compresses evenly.
Bolt holes match the OEM cylinder head pattern, so the housing bolts up squarely without stressing the casting or pinching the gasket.
A protective coating resists coolant attack, road salt, mud, and rust, which keeps the sealing faces and threads in good condition.
The coolant port is sized to the OEM opening, so flow is not restricted and the thermostat responds at the designed temperature.
Exact OEM dimensions allow direct replacement, so no filing, drilling, or extra sealant is needed during the repair.
Production starts with certified metal checked for chemical composition and soundness before casting or machining begins.
Castings are inspected for porosity and blowholes, because internal voids can open a leak path under cooling system pressure.
CNC machining produces the sealing face, thermostat seat, bolt holes, and coolant port in one setup, so surfaces stay parallel and concentric.
Inspectors check flatness, seat depth, bolt hole position, port size, and coating thickness on samples from every production batch.
Batch records let XCMG trace each 800169688 housing back to its casting lot and machining run, so quality questions are resolved fast.
The thermostat housing holds the thermostat in the coolant path and provides the chamber where the valve opens and closes.
If the housing is warped or corroded, coolant seeps past the gasket, pressure drops, and the engine can overheat.
The genuine 800169688 holds the thermostat square in its seat, so the valve opens and closes at the correct temperature.
A rigid housing also resists distortion when the bolts are torqued, which prevents the gasket from being pinched or crushed.
Correct sealing keeps the cooling circuit airtight, so the water pump works efficiently and the engine holds stable temperature.
The 800169688 Thermostat Housing installs with standard sockets and a torque wrench during cooling system service.
Let the engine cool completely, release cooling system pressure, and drain coolant to the level recommended in the workshop manual.
Remove the housing bolts, lift the housing away, and clean the mating faces so old gasket material and corrosion are fully removed.
Fit a new thermostat and gasket, position the housing square on the cylinder head, and install the bolts by hand before tightening.
Tighten the bolts evenly in a cross pattern to the manual torque, refill coolant, and run the engine to check for leaks.
During routine maintenance, check the housing for corrosion and weeping, and replace it if the sealing face is pitted or warped.
Every 800169688 housing is produced in an ISO 9001 and ISO 14001 certified plant with traceability from casting to packed carton.
Incoming castings are checked for porosity, and finished housings are measured for flatness, seat depth, bolt spacing, and port size.
During production, machining dimensions are monitored at set intervals so drift is corrected before parts leave the line.
Post-production checks include visual inspection, coating thickness measurement, and a trial fit on the XCMG cylinder head fixture.
Sample housings from each batch undergo pressure and thermal cycling tests to confirm long-term sealing performance in the field.
Low-cost aftermarket housings often have rough sealing faces or inaccurate bolt holes that leak or crack under torque.
A housing with the wrong port size can restrict coolant flow, which leads to uneven warm-up and overheating.
The genuine 800169688 is manufactured to the XCMG drawing, so bolt pattern, port, seat depth, and material match the original part.
Using genuine XCMG parts also preserves warranty coverage, protects resale value, and maintains compatibility with other OEM components.
Backed by XCMG global quality standards and technical support, this thermostat housing delivers dependable sealing in harsh conditions.
Choosing the genuine 800169688 housing prevents a small coolant seep from turning into an expensive engine overheating repair.
A leaking housing can drain the cooling system, which warps heads and damages gaskets within minutes of operation.
Durable metal and proper coating keep the sealing face sound across a long service life, reducing replacement frequency.
Reliable cooling also extends hose, seal, and oil life, lowering the total cost of ownership for fleet operators.
Fleet records from construction and mining operations show genuine XCMG cooling parts cut engine-related downtime.
XCMG applies sustainable manufacturing to the 800169688 housing through recyclable metal content and efficient machining.
The long service life of the housing reduces material consumption and lowers the environmental footprint of replacement parts.
Preventing coolant leaks protects soil and groundwater and supports compliance on environmentally sensitive sites.
Metal and coating materials in this component comply with RoHS and REACH rules for safe handling and disposal.
The 800169688 Thermostat Housing is held in XCMG regional distribution centres across North America, Europe, Asia, and Australia.
Each housing is wrapped and packed in a sturdy carton that protects the machined sealing face from impact and moisture.
For fleet-wide orders, XCMG provides volume pricing and consolidated freight options that simplify planning and reduce cost.
Real-time stock visibility and dedicated supply chain support help fill urgent requests quickly, shortening downtime on active projects.
Robust packaging preserves factory condition until installation, preventing the face damage and rust common in stored spares.
The XCMG 3035844 Thermostat Housing 800169688 is a vital cooling system component for XCMG excavators, holding the thermostat and sealing coolant flow.
Its flat machined faces, accurate thermostat seat, and protective coating deliver dependable sealing in hot, wet, and dusty environments.
By preventing coolant leaks and pressure loss, this housing reduces downtime, lowers maintenance costs, and extends engine service life.
Always purchase genuine XCMG parts from authorised dealers to guarantee authenticity, quality, and performance for your equipment fleet.
Choose the 800169688 Thermostat Housing for dependable cooling and lasting operational peace of mind.
Partner with XCMG, your trusted source for heavy equipment engine and hydraulic components that deliver real value.
OEM 800169688 – XCMG 3035844 Thermostat Housing – the definitive coolant housing solution for your excavator thermostat and cooling circuit. Engineered for a flat sealing face, designed for exact fitment, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.
