Professional Engine Hardware: 168306 (Alternative PN: 168306) Heavy-Duty Screw for Industrial Maintenance
When it comes to engine integrity, every bolt matters. The 168306 screw is engineered to meet the rigorous demands of Caterpillar heavy equipment. Whether you are performing a mid-life overhaul or an emergency repair, using OEM-standard hardware ensures your 3400 and 3100 series engines maintain peak performance without the risk of fastener failure.
| Field | Details |
|---|---|
| Part Number | 168306 / 168306 (Non-hyphenated) |
| Product Name | SCREW (Engine Grade Fastener) |
| Model NO. | Compatible with Caterpillar 3406, 3116, 3126, C7, C9 Series |
| Condition | Brand New, OEM Standard Replacement |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Application | Engine rebuild, overhaul, maintenance, cylinder head assembly |
| Purchase Focus | Our OEM-Standard Replacement | Generic Aftermarket Bolts |
|---|---|---|
| 1. Material Grade | High-tensile alloy steel (10.9/12.9 Grade) | Standard carbon steel (Lower durability) |
| 2. Precision Fit | 100% matched to Caterpillar engine specs | Approximate sizing (Risk of vibration looseness) |
| 3. Corrosion Resistance | Industrial phosphate or zinc coating | Minimal coating (Prone to rust) |
| 4. Heat Tolerance | Designed for high-temp engine environments | Susceptible to thermal expansion failure |
| 5. Supply Chain | Large stock with global fast dispatch | Variable lead times |
| 6. Cost Efficiency | Direct factory pricing without middleman | Hidden costs due to frequent replacement |
How to identify if 168306 screw needs replacement during a 3406 engine overhaul?
During inspection, check for thread stretching, pitting, or head rounding. If the engine has undergone significant overheating, the structural integrity of the 168306 bolt may be compromised. Replacing fasteners during an overhaul is a low-cost insurance policy against catastrophic engine failure.
What are the consequences of using incorrect grade screws in 3116 or 3126 engines?
Using sub-standard screws can lead to head gasket leaks, manifold cracks, or internal component detachment. The 168306 is specifically designed for high-vibration heavy-duty cycles found in Caterpillar machinery.
Why Choose This SCREW?
Our 168306 screws feature an OEM-standard structure. We are trusted by repair shops and equipment fleets globally for providing parts that withstand the harshest construction and mining environments.
Our technical team helps operators manage their fleets efficiently:
Identify potential risks during routine maintenance to prevent downtime.
Recommend suitable replacement parts based on your specific engine serial number.
Support both inspection advice and global parts supply for long-term reliability.
We are a leading provider specializing in high-performance engine assemblies and components. Our core inventory focuses on world-renowned brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. We understand that precision is key to diesel engine longevity.
Our Primary Product Range:
Cylinder Liners, Pistons, Piston Rings, Crankshaft Main Bearings, Connecting Rod Bearings, Thrust Washers, Full Overhaul Gasket Kits, Diesel Fuel Injection Pumps, Fuel Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
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