137-3750/295-9439 Fan Motor Mount for Caterpillar 336D excavator

product parameters

Part No：137-3750 / 295-9439
Type：Fan Motor Mount / Cast Support Bracket
Applicable Equipment：CAT336D Excavator, C9 Engine Cooling System
Material：High strength cast alloy（QT450）
Surface Treatment：Anti-rust primer coating, surface deburring
Mounting form：Flange mounting, fixed by through bolts
Feature：High structural rigidity, vibration damping, high temp resistant, anti-crack, precise hole position, low fatigue
Working Temperature：-20℃ ~ +180℃
Tensile strength：≥480MPa
Flatness tolerance：≤0.15mm
Thread specification：Matched OEM thread standard
Condition：Brand new, 100% dimension checking, visual inspection & casting defect inspection
Package：Independent anti-rust packing + Standard export carton
Storage suggestion：Keep dry, avoid moisture, rust and collision, indoor constant temperature storage, stay away from corrosive gas

• High-strength cast alloy construction. Formed by precision casting and stress-relief annealing treatment. Outstanding structural rigidity and impact resistance. Effectively disperses cyclic vibration load generated by fan high-speed rotation. Not easy to deform or crack under long-time high-temperature vibrating environment, keeps stable supporting performance continuously.
• Precision machining of mounting holes. Flange hole positions, aperture and thread are strictly machined according to OE drawings. Guarantees good concentricity after installation, reduces fan shaking and eccentric wear. Minimizes extra vibration transferred to fan motor and adjacent parts.
• Strong adaptability to harsh construction environments. Anti-rust protective coating is applied on all surfaces. It can withstand dust, mud, temperature fluctuation and continuous vibration at job sites. Reduce the risk of rusting, corrosion and fatigue fracture during long service cycles.
• Direct replacement with good cost performance. All mounting dimensions, flange layout and hole spacing fully match OE specs. No cutting, drilling or modification needed during installation. Fast field replacement. A trusted aftermarket spare part for overhaul and routine maintenance, balancing quality and procurement cost.

FAQ 

Q1: Which machine does 137-3750 / 295-9439 fan motor mount fit? Can it replace other part numbers?
A1: It is specially designed for CAT336D excavator C9 engine cooling system. Not universal for other CAT models. Mismatched brackets may cause fan shaking, concentricity deviation, crack and damage to fan motor. Please carefully verify machine model and OEM part number before purchase.

Q2: What tests are performed before shipment?
A2: Every fan motor mount is 100% inspected. Tests include dimension check, casting flaw detection, thread inspection and flatness verification. Simulated vibration assessment to guarantee stable performance after installation.

Q3: Is special adjustment required after installation?
A3: Precisely machined according to OE dimensions, direct installation normally. After fitting, check fan runout and tighten bolts to specified torque. If severe shaking exists, recheck concentricity of fan assembly.

Q4: What pre-installation work helps extend service life?
A4: Clean mounting surface thoroughly, remove rust, debris and old gasket residue. Check fan motor shaft, bearing and blade condition. Torque bolts step by step. After installation, run no-load test and check vibration before heavy load work.

warehouse