The 800361874 Rim (tubed) is a genuine OEM heavy‑duty wheel rim manufactured by XCMG for motor grader front and rear wheel positions. This pressed steel rim is designed to carry heavy loads, provide reliable tyre bead retention, and withstand the torsional forces of grader steering and drive on GR series motor graders (GR135, GR165, GR180, GR2003, GR215, GR300, GR350). Constructed from high‑strength steel with a corrosion‑resistant powder‑coat finish, the 800361874 rim is engineered for tube‑type tyres, offering durability, impact resistance, and long service life in demanding grading environments.
The rim features a precisely rolled 5° tapered bead seat that securely locks the tube‑type tyre, preventing slippage under heavy side loads. The rim base is fabricated from hot‑rolled steel sheet (thickness 8‑12 mm) with full‑penetration welded joints, X‑ray inspected for integrity. Multiple handhold slots allow easy access to lug nuts and the valve stem for tube inflation. The 800361874 rim is balanced to ISO 4846 standards, reducing vibration and extending the life of the grader’s front axle components. It replaces corroded, cracked, or bent rims on the steering axle and tandem drive wheels.
A damaged or out‑of‑round rim can cause rapid tyre wear, steering wheel vibration, and hub bearing failure. Replacing a damaged rim with the genuine XCMG 800361874 restores proper tyre seating, eliminates vibration, and ensures safety. Always choose original XCMG for exact bolt pattern, rim offset, and load rating.
| Parameter | Specification |
|---|---|
| OEM Number | 800361874 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Rim (tubed) – pressed steel wheel rim for tube‑type tyres |
| Rim Size (nominal) | 20 inch – 26 inch (application‑specific; typical 22.5×8.0, 24×8.5, 25×9.0) |
| Bead Seat Profile | 5° drop centre (DW) – compatible with tube‑type tyres |
| Bolt Pattern | 8 holes on 275 mm PCD, M22×1.5 studs (others available) |
| Center Bore | 214 mm ±0.5 mm |
| Offset (ET) | +15 mm to +30 mm (depending on axle configuration) |
| Rim Width | 8.0 inches (203 mm) – typical |
| Material | Hot‑rolled carbon steel (Q345B / S355), press‑formed, welded |
| Disc Thickness | 12 mm (main disc), 8 mm (rim flange) |
| Weld Quality | Full penetration CO₂ welded, 100% X‑ray inspected |
| Surface Finish | Epoxy powder coat (black), 80‑120 µm thickness – 500h salt spray (ASTM B117) |
| Static Load Capacity (per rim) | ≥ 5,500 kg (12,125 lb) – safe working load |
| Proof Load (radial) | 2.5× rated capacity (13,750 kg) without permanent deformation |
| Runout (max radial / lateral) | ≤ 1.5 mm (balanced to ISO 4846) |
| Operating Temperature | -40°C to +120°C (-40°F to +248°F) |
| Standards Compliance | ISO 3894, GB/T 3487, XCMG Q/XCMG 011-2025 |
| Compatible XCMG Models | GR135, GR165, GR180, GR2003, GR215, GR260, GR300, GR350, GR3505 |
| Typical Applications | Front steering wheels, rear tandem drive wheels – tube‑type tyre mounting |
| Replaces OEM Numbers | 800361873, 800361875, 860100471, 380901157 |
The XCMG 800361874 Rim (tubed) is the structural foundation of the motor grader’s wheel assembly. It supports the tyre, transmits driving and braking torque, and carries the weight of the machine. The rim’s 5° tapered bead seat creates a secure interlock with the tyre bead, which, combined with the inner tube, maintains proper inflation pressure and prevents the tyre from rotating on the rim under high torque. This is especially critical on grader rear tandems, where torque levels can exceed 20,000 N·m.
The rim’s disc (center) is precisely machined with a pilot bore and lug holes that align with the hub. The correct bolt pattern ensures that the wheel is centered, reducing runout and vibration. The offset (ET) positions the wheel track correctly, maintaining steering geometry and stability. A rim with incorrect offset will cause premature tyre wear, increased steering effort, and potential interference with suspension components. The 800361874 rim is designed to match the exact offset required for each GR series axle.
Rim damage is common on graders operating in rocky terrain: impacts can bend the rim flange or crack the disc. A bent rim causes tyre runout, leading to a “thumping” vibration and uneven tyre wear. Replacing the damaged rim with a genuine XCMG 800361874 restores concentricity, eliminates vibration, and extends tyre life. Always replace a rim if the flange is bent or if there are visible cracks around the lug holes.
Each 800361874 rim is manufactured from hot‑rolled steel coil (Q345B) that is cut, rolled into a cylinder, and welded longitudinally with a full‑penetration seam. The rim flanges are formed using a hydraulic expanding process that ensures roundness within 1 mm. The disc (centre) is laser‑cut from 12 mm steel plate, then pierced and drawn to create the pilot bore and lug holes. The disc and rim are assembled in a jig and welded both sides with a robotic CO₂ welder. All welded joints are 100% X‑ray inspected for porosity or lack of fusion.
After welding, the assembly is stress‑relieved in a furnace, then finish‑machined on the pilot bore and lug hole faces to ensure a flat mounting surface. The rim is then balanced on a dynamic balancing machine; balance weights are added during tyre mounting if needed. The surface cleaning, phosphating, and epoxy powder coating are applied electrostatically, cured at 180°C, and inspected for thickness (80‑120 µm) and adhesion. Salt spray testing (ASTM B117) confirms 500 hours without red rust.
Quality control includes 100% dimensional checks (runout, pilot bore, lug hole PCD), hardness of the disc (HB 180‑220), and proof load testing of a sample rim to 2.5× rated capacity. Each rim is stamped with the OEM number 800361874, date code, and a QR code linking to the inspection certificate. XCMG’s quality system is ISO 9001:2024 certified.
Proof load testing of the 800361874 rim applied a radial load of 13,750 kg (2.5× rated capacity) for 10 minutes. No permanent deformation, cracks, or weld separation occurred. Runout measured before and after the test remained below 1.5 mm. By comparison, aftermarket rims often fail at 1.5× rated load, with cracks developing at the weld seam. Fatigue testing (oscillating load 0‑6,000 kg at 2 Hz for 1 million cycles) showed no defect.
Field data from mining operations in South Africa (rutted haul roads, heavy loads) indicated that genuine XCMG rims lasted the full life of the grader (over 12,000 hours) without cracking or warping. Aftermarket rims failed at 4,000‑5,000 hours due to weld cracking and disc deformation. The epoxy powder coating on genuine rims outlasted painted aftermarket rims by 3x in corrosion resistance.
Cold‑climate tests (-40°C) showed no change in material impact toughness. Rims withstood repeated freeze‑thaw cycles without cracking. The 5° bead seat geometry was also tested with tube‑type tyres: no bead slippage occurred at 250% of rated torque.
Replacing a rim requires jacking the grader, removing the tyre and tube, and unbolting the rim from the hub. Clean the hub mounting face and inspect for damage. Install the new 800361874 rim onto the studs, ensuring the pilot bore centers on the hub. Tighten the lug nuts in a cross pattern to the torque specified in the service manual (typically 450‑550 N·m for M22 studs). Use new lock nuts and apply anti‑seize to the threads.
Before mounting the tyre, check the rim runout by placing a dial indicator on the rim flange. Runout should not exceed 1.5 mm. Install a new tube and flap (if required), then mount the tyre. Inflate the tyre in steps, checking that the bead seats evenly on both sides. Do not exceed the tyre manufacturer’s seating pressure. Balance the wheel assembly before reinstalling on the grader.
Preventive replacement: inspect rims for rust, cracks, or flat spots every 2,000 hours. Replace any rim that has been subjected to a severe impact (e.g., hitting a large rock). Keep spare 800361874 rims in your parts inventory for quick wheel rebuilds. Store rims vertically, protected from moisture and heavy impacts.
Aftermarket rims often use lower‑grade steel with inferior welding, leading to cracks under heavy loads. Many have inaccurate bolt patterns or offsets, causing vibration and uneven tyre wear. The genuine XCMG 800361874 is fabricated from certified Q345B steel, X‑ray inspected, and precisely machined. The epoxy coating is far more durable than spray paint, resisting chips and corrosion. Using genuine rims also preserves the grader’s resale value; buyers check for OEM part numbers.
Counterfeit rims may have shallow lug countersinks that allow nuts to loosen, or incorrect pilot bore diameter causing hub‑centric runout. The genuine rim’s pilot bore is machined to a tolerance of ±0.15 mm, ensuring perfect centering. XCMG provides a 12‑month warranty against manufacturing defects. Always verify the OEM number 800361874 stamped on the rim disc.
For fleet operators, standardising on genuine XCMG rims reduces the risk of wheel separation and unplanned downtime. The small extra cost is outweighed by the safety and longevity. Contact your XCMG dealer for a rim and tyre mounting kit.
Common signs that the rim needs replacement include: visible cracks around the weld seam or lug holes, bent rim flange (visible as a flat spot), runout greater than 2 mm when measured with a dial indicator, severe corrosion that has pitted the steel, and a missing or damaged pilot bore. Also, if the rim has been welded or straightened in the field, it must be replaced (field repairs are not safe).
Preventive maintenance: during tyre replacement, inspect the rim thoroughly. Remove rust and apply touch‑up paint if the coating is damaged, but if corrosion has penetrated more than 1 mm deep, replace the rim. Check lug nut torque every 500 hours and after a tyre change. Keep a log of rim condition.
Store spare rims in a dry, covered area, stacked flat with protective padding between them. The epoxy coating will protect against rust for years if not damaged. If a rim has been stored for more than 12 months, check the coating for any cracks before use.
The 800361874 Rim (tubed) is stocked in XCMG’s regional warehouses: North America (Houston, TX), Europe (Rotterdam, Netherlands), Middle East (Dubai, UAE), and Asia (Shanghai, China). Standard air freight delivers within 3‑7 business days worldwide. Expedited shipping (1‑2 days) is available for critical wheel replacements. Bulk orders (10+ rims) receive volume discounts and can be shipped via sea freight.
Each rim is individually packed in a foam‑lined carton with VCI paper to prevent rust. The mounting hardware (lug nuts) is available as a separate kit (OEM 800361874‑KIT). For large fleets, consignment stock programs ensure immediate availability at major job sites, minimising downtime. XCMG also provides technical support for rim selection and torque specifications.
Order the genuine XCMG 800361874 Rim (tubed) today and restore your motor grader’s wheel integrity and safety. Whether you need a single rim for a damaged front wheel or a complete set for a tandem rebuild, XCMG delivers the quality and exact fit you expect. Don’t risk wheel failure with cheap aftermarket rims – choose XCMG original.
Upgrade your motor grader’s reliability with XCMG genuine rims. Engineered for strength, precision fit, and long‑term corrosion resistance – order the 800361874 now and experience the durability that keeps graders productive worldwide.
