The genuine XCMG 380901116 Spring Pin is a precision‑formed coiled pin designed for XCMG GR series motor graders. This OEM spring pin (also known as a coiled spring pin or spiral pin) is used to secure linkages, pivot joints, hydraulic cylinder ends, and other mechanical connections where vibration‑resistant fastening is required.
Manufactured from high‑carbon spring steel (SAE 1070) with a zinc‑plated finish, the 380901116 spring pin provides exceptional resilience, shear strength, and fatigue resistance in demanding grading environments. The coiled construction allows the pin to compress slightly during insertion, creating a constant radial pressure that ensures a tight, secure fit even under heavy shock loads.
The 380901116 pin has a nominal diameter of 8 mm and a length of 40 mm (exact as per XCMG drawing). It is designed to be pressed into a drilled hole with an interference fit, eliminating the need for secondary locking devices. The rounded ends facilitate easy installation and prevent damage to mating components.
Typical applications on XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350, and GR2003 graders include securing the blade lift linkage pivot pins, articulation joint lock pins, brake linkage clevis pins, and hydraulic cylinder rod ends. A missing or worn spring pin can allow pins to drift out, causing mechanical separation and potential equipment damage or operator injury.
Replacing a damaged or lost spring pin with genuine XCMG 380901116 restores original retention force, prevents accidental disconnection, and ensures the safety and reliability of critical linkages. Keep this spring pin in your parts inventory for quick field repairs of suspension, steering, or implement connections.
| Parameter | Specification |
|---|---|
| OEM Number | 380901116 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Coiled Spring Pin / Spiral Pin (Heavy Duty) |
| Nominal Diameter | 8.00 mm (±0.08 mm) |
| Overall Length (L) | 40.00 mm (±0.5 mm) |
| Material | High‑carbon spring steel (SAE 1070 / C75S) |
| Hardness | 44–51 HRC |
| Surface Finish | Zinc plating + yellow chromate (480h salt spray) |
| Shear Strength (min.) | 1,200 N (122 kgf) |
| Recommended Hole Diameter | 7.90–7.95 mm (H11 tolerance) |
| Installation Force (max.) | 800 N (80 kgf) press‑fit |
| Removal Force (min.) | 50 N (5 kgf) – retained by spring tension |
| Operating Temperature Range | -40°C to +150°C (-40°F to +302°F) |
| Standards Compliance | ISO 8750, DIN 1481, XCMG Q/XCMG 1146-2023 |
| Compatible Models | XCMG GR135, GR165, GR180, GR215, GR260, GR300, GR350, GR2003 |
| Superseded Part Numbers | 380901100, 380901110, 380901115 |
The 380901116 spring pin is used in critical locations such as the articulation joint pivot pin lock. It prevents the main pivot pin from walking out under oscillation, which would cause loss of steering control.
In the blade lift linkage, spring pins secure the clevis pins that connect hydraulic cylinders to the lift arm. A missing spring pin here could allow the cylinder pin to disconnect, causing sudden blade drop and serious safety hazards.
Unlike solid roll pins, the coiled design of the 380901116 pin offers greater flexibility and shock absorption. The multiple coils distribute load evenly and provide a consistent clamping force even after repeated flexing.
Replacing a lost or deformed spring pin with genuine XCMG 380901116 restores original retention force, eliminating the risk of pin migration and ensuring the machine remains safely assembled.
XCMG manufactures the 380901116 spring pin from high‑carbon spring steel strip. The strip is wound into a tight spiral using a precision coiling machine, creating a hollow, multi‑layer pin.
After coiling, the pins are heat‑treated (austenitized, quenched, tempered) to achieve a uniform hardness of 44–51 HRC. This provides the optimal balance of springiness and resistance to permanent set.
The ends are chamfered and deburred to prevent scratching of the mating bore during installation. The zinc‑plated finish with yellow chromate provides corrosion protection that far exceeds that of plain steel pins.
Each pin is 100% inspected for outer diameter, length, and spring tension. Random samples are tested for shear strength and fatigue life (over 100,000 cycles).
To install a new 380901116 spring pin, drill or ream the hole to the recommended diameter (7.90–7.95 mm). The hole must be free of burrs and sharp edges.
Align the pin with the hole and tap it gently with a hammer and a pin punch. The pin should enter with moderate resistance. Do not hammer once the pin is flush – it is designed to seat slightly below the surface.
For removal, use a pin punch of slightly smaller diameter (6 mm) to drive the pin out from the opposite side. If the pin is seized, apply penetrating oil and wait 10 minutes.
Never reuse a spring pin – once removed, it will have lost some spring tension and may not provide adequate retention. Keep spare 380901116 pins in your service kit.
Aftermarket spring pins are often made from low‑carbon steel that lacks proper heat treatment, resulting in pins that collapse or take a permanent set under load. Many have inconsistent diameters, causing either too tight (damaging the hole) or too loose (allowing the pin to fall out).
Counterfeit pins may have sharp, unbroken edges that score the bore, leading to stress risers and eventual cracking of the component. Some lack corrosion protection and rust within weeks, seizing in the hole.
Genuine XCMG pins are 100% dimensionally checked and hardness‑tested. XCMG provides a 12‑month warranty against manufacturing defects. Using OEM spring pins prevents unsafe pin migration and protects your grader’s critical linkages. The small cost difference is insignificant compared to the risk of equipment damage or injury.
Indicators that a spring pin needs replacement: the pin can be rotated by hand in its hole (indicating loss of spring tension), visible rust or pitting, or a bent or deformed appearance. Also, if the pin falls out during operation, it has clearly failed.
Preventive replacement is recommended every 3,000 operating hours or when the pin is removed for any reason. Never reuse a spring pin. The cost of a new pin is negligible compared to the labour of re‑repairing a joint that came apart.
Keep a stock of 380901116 pins in your parts inventory. During routine maintenance, inspect all spring pins in visible linkage areas – if any are loose, replace them immediately. A proactive replacement strategy eliminates unexpected failures.
The XCMG 380901116 Spring Pin is stocked in regional distribution centers: Houston (USA), Rotterdam (Netherlands), Dubai (UAE), and Shanghai (China). Standard air freight delivers within 2–5 business days worldwide.
Expedited courier (DHL/FedEx) provides 1–2 day shipping for urgent linkage repairs. Bulk orders of 100+ pins receive volume discounts and can be shipped by sea freight. Each pin is individually packed in a labelled, oiled‑paper envelope to prevent rust.
For large fleets, consignment stock programs ensure immediate availability. Installation hole size charts and torque data are available upon request. Use the buttons above to request a quote or email our parts specialists.
Don’t risk a disconnected linkage due to a missing or failed spring pin. Order the genuine XCMG 380901116 Spring Pin today and ensure every pivot pin and clevis on your motor grader remains securely locked.
Upgrade your grader’s fastener reliability with XCMG genuine spring pins. Engineered for spring tension, shear strength, and corrosion resistance. Keep your XCMG grader safe and productive – choose 380901116 OEM spring pin.
