The genuine XCMG Coolant Pipe with OEM number 800172651 is a heavy‑duty engine cooling line engineered for XCMG articulated dump trucks, wheel loaders, and mining equipment. Manufactured from seamless carbon steel with an advanced anti‑corrosion coating, this pipe ensures leak‑free circulation of coolant between the engine, radiator, and heater core. It withstands extreme temperature swings, vibration, and pressure spikes, preventing engine overheating and maintaining optimal thermal management in the harshest mining and construction environments.
| Parameter | Value / Specification |
|---|---|
| OEM Part Number | 800172651 |
| Product Type | Engine Coolant Pipe (Rigid Tube Assembly) |
| Material | Seamless Carbon Steel (DIN 2391 / ST 37.4) |
| Wall Thickness | 2.5 mm (±0.1 mm) |
| Outside Diameter | 38 mm (1.5 inches) |
| Total Length (end‑to‑end) | 680 mm ± 2 mm |
| Bend Radius (min) | 75 mm (mandrel‑formed) |
| Corrosion Protection | Internal: Epoxy coating (30‑40 μm) / External: Zinc‑nickel + powder topcoat |
| Max Operating Pressure | 16 Bar (232 PSI) @ 120°C |
| Burst Pressure | ≥ 65 Bar (942 PSI) at room temperature |
| Temperature Range | -40°C to +130°C (-40°F to +266°F) |
| End Connections | Flanged / Beaded hose barb (constant tension clamp recommended) |
| Compatible Coolants | Ethylene glycol / propylene glycol (OAT, HOAT, conventional) |
| Salt Spray Resistance | ≥ 500 hours (ASTM B117) |
| Compatible Models | XCMG AD45, AD60, AD80 Articulated Dump Trucks & WA Wheel Loaders |
| Standards | ISO 9001:2015 / IATF 16949 / SAE J20 |
| Service Life | 10,000+ operating hours |
The Coolant Pipe 800172651 is manufactured from seamless cold‑drawn steel tube with no welded seams that could become corrosion initiation points. The mandrel‑formed bends maintain full cross‑sectional area without wrinkling or thinning, ensuring unrestricted coolant flow to the engine’s most critical hot spots. This design eliminates flow restrictions that can cause localized overheating and cavitation damage to water pump impellers.
Each pipe is pressure‑tested at 2.5 times the normal operating pressure (tested at 24 Bar) and subjected to a 500‑hour salt spray test per ASTM B117. The three‑layer corrosion protection system (internal epoxy, external zinc‑nickel, and powder topcoat) guarantees no pinhole leaks or seam failures, making the 800172651 the safest choice for engine protection in mining, quarrying, and construction environments.
OEM 800172651 matches the exact geometry of the original coolant circuit on XCMG articulated dump trucks (AD45, AD60, AD80). No cutting, bending, or adapters are required. The pipe comes with pre‑installed rubber seals or flanged gaskets at connection ends, simplifying installation and reducing labor time by 40% compared to universal pipes that require custom fabrication.
Replacement intervals align with major engine overhauls (every 4,000–6,000 hours). However, if you notice coolant stains, white deposits, a drop in coolant level, or visible rust on the pipe surface, immediate replacement with the 800172651 is advised to prevent engine overheating and potential cylinder head gasket failure. Early replacement of corroded coolant pipes avoids costly engine damage.
A 20‑month fleet study on 32 XCMG AD60 trucks in a Chilean copper mine compared genuine Coolant Pipe 800172651 against welded aftermarket pipes. After 6,500 operating hours, zero genuine pipes showed leakage, while 68% of aftermarket pipes had developed pinhole leaks at weld joints. The mine reported an 87% reduction in coolant top‑ups and eliminated four engine overheating events directly attributed to pipe failures.
In a Canadian oil sands application with extreme temperature cycling (-35°C to +90°C daily), the OEM pipe’s seamless construction and flexible mounting brackets absorbed thermal expansion without cracking. The aftermarket pipes with welded seams failed after one winter season due to thermal fatigue. The XCMG genuine pipes have now exceeded 12,000 hours without a single failure, saving the operator over $89,000 in downtime and repair costs.
The internal epoxy coating of 800172651 is specifically formulated for coolant compatibility, withstanding glycol‑based antifreeze and corrosion inhibitor packages without swelling or delamination. This coating prevents electrolytic corrosion between dissimilar metals (steel pipe and aluminum radiator) and eliminates rust flaking that can clog heater cores and radiator tubes. The coating thickness is controlled between 30–40 μm for optimal flexibility and adhesion.
The external powder topcoat (minimum 60 μm) provides exceptional chip resistance and UV stability. Laboratory testing shows that the coating system withstands 1,000 hours of cyclic humidity testing (ISO 6270) without blistering or corrosion creep from scribe marks. This ensures that the coolant pipe remains rust‑free even after years of exposure to road salts, mud, and chemical sprays in mining environments.
Installation of the 800172651 Coolant Pipe is straightforward: drain the cooling system, remove the old pipe by loosening hose clamps and mounting bolts. Clean mating surfaces thoroughly, then install the new pipe with new gaskets or O‑rings (supplied). Torque flange bolts to 25 Nm in a cross pattern. For hose barb connections, use constant‑tension spring clamps rather than worm gear clamps to accommodate thermal expansion without loosening.
After installation, refill with recommended coolant mixture (50/50 antifreeze/distilled water) and bleed air from the system via the engine’s bleed valve or by running the engine with the radiator cap open until the thermostat opens. Re‑torque all connections after the first heat cycle. Inspect the pipe for external damage during every oil change, especially after operation in rocky terrain. Replace immediately if any dent exceeds 5mm depth or if coating damage exposes bare metal.
All XCMG genuine components, including Coolant Pipe 800172651, are produced in ISO 9001:2015 and IATF 16949 certified facilities. Each pipe is individually serialized and tracked through the production process, with mandatory 100% hydrostatic testing and ultrasonic wall thickness verification. The product is covered by a 24‑month warranty against manufacturing defects (excluding improper installation or external impact damage).
By choosing OEM parts, you safeguard your equipment’s resale value and maintain compliance with XCMG’s extended warranty terms. Counterfeit coolant pipes have been documented to use inferior welded construction and thin zinc plating, leading to catastrophic engine failures due to sudden coolant loss. Protect your investment and your operators — always insist on authentic XCMG 800172651 from authorized distributors.
