399-9437 spring vibration damper CAT wheel loadeer spare part

399-9437 spring vibration damper CAT wheel loadeer spare part Featured Image
  • 399-9437 spring vibration damper CAT wheel loadeer spare part
  • 399-9437 spring vibration damper CAT wheel loadeer spare part
  • 399-9437 spring vibration damper CAT wheel loadeer spare part

Short Description:

Part No.4N-2109, CAT brand new gray cast iron damper adapter, converts bolt pattern between crankshaft flange and torsional damper, transmits torque. Fits 3408, 980C, 980H, D9R, R2900G, AD40, AD45 for underground haulers, mining trucks and dozers.


Product Detail

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description

This 399-9437 is spring damper assembly for CAT 993K wheel loader, with alloy coil spring and end locating bushings, free length 371 mm. The spring provides linear stiffness to buffer impact force during loading and travelling, isolate vibration between main frame, cab and hydraulic lines, reduce weld crack and loose fitting leakage. Each spring goes through stress relief, fatigue test and pre-compression check. End bushings keep alignment and prevent side load. It is a key buffer part for heavy mining loader frame system.

Part No.：399-9437
Name：CAT Spring Vibration Damper, 371 mm Length
Type：Coil spring buffer assembly
Free length：371 mm
Fit machine：993K wheel loader
Process：Brand new OEM, stress relief, fatigue test, pre-load calibration
Mounting position：Between main frame and sub-frame

Advantages

1. Standard 371 mm length, perfectly match original bracket and limit dimension
2. Alloy spring, excellent impact and fatigue resistance for mining cyclic shock
3. Built-in end bushings, avoid spring tilt and side wear
4. Isolate frame vibration, protect cab and hydraulic piping, reduce noise and fatigue failure

FAQ 

Q1：Can 399-9437 interchange with other frame spring dampers?
A：No. Spring rate, length and bushing size are dedicated for 993K.
Q2：Is this a Reman part?
A：No. It is brand new OEM assembly with new spring and bushings.
Q3：What symptoms will appear when this spring damper fails?
A：Frame impact noise, heavy cab vibration, frequent hydraulic fitting leakage and frame weld crack.
Q4：Should I replace it if spring looks intact during overhaul?
A：Spring force check is required. Replace once permanent deformation or stiffness loss is found.

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