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Caterpillar 3406, C15, C16, C18, C27, C32 Head Bolt, 1241855
$11.45
MSRP: $22.51
You Save: $11.06 (49 %)
Part Number: 149089
Brand: CTP
Manufacturer Part No: 1241855
Superior Quality Parts: Heavy Duty Pros parts meet and exceed the OEM quality specifications.
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Product Details & Specifications
Caterpillar 3406, C15, C16, C18, C27, C32 Head Bolt, 1241855, 9X8904
3/4" - 16 x 7.638" - 12 Point Head
Did you know
All Caterpillar C series engines require that the used head bolts be discarded and replaced with new head bolts every time there is a repair.
The way Torque-To-Yield bolts work is simple; the bolts are longer and thinner when compared to early bolt designs. When these bolts get torqued (tightened) to yield meaning to almost the breaking point, the bolts will stretch. This stretching (like a spring) provides a constant clamping force on the cylinder head.
Why you should never reuse TTY head bolts: Used TTY (Torque-To-Yield) head bolts will snap in the process of re-torqueing the cylinder head. If they do not snap, the already permanently stretched bolts will stretch even further and rapidly lose clamping load. The loss of clamping load could ultimately lead to head gasket failure.
When an engine operates, the cylinder head expands as it heats up and contracts when it cools down. The spring like clamping force of the TTY bolts allows for this expansion and contraction without losing the clamping pressure on the cylinder head, and thus maintaining the sealing integrity of the head gasket.
OEM Cross References: 124-1855, 1241855, 9X-8904, 9X8904
Fits the following Caterpillar engines:
Engine Machine - 3208, 3408
Engine Industrial - 3406B, 3406C
Gen Set Engine - 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3412, 3412C, 3456
Industrial Engine - 3406C, 3406E, 3408B, 3408C, 3412, 3412C, 3456, C15, C18
Marine Engine - 3406B, 3406E, 3408B, 3408C, 3412, 3412C, 3412D, C18
Petroleum Engine - C15, C32
Truck Engine - 3406B, 3406C, 3406E, 3408, 3408B, C15, C18
Gas Engine - G3406
Fits the following Caterpillar applications:
Cold Planer - PR1000, PR1000C
Excavator - 245B
Generator - SR4
Generator Set - C32
Load Haul Dump - R2900, R2900G
Power Module - PM3456
Pumper - SCT673, SPS342, SPT342
Reclaimer Mixer - RM350
Road Reclaimer - RR250
Soil Stabilizer - SS250
Stabilizer Mixer - SM350
Track Type Tractor - D9R
Underground Art Truck - AD30, AD55
Wheel Loader - 980H
Wheel Scraper - 623E, 623F, 657, 657B
Wheel Tractor - 621E, 631E, 637E
HDP's Caterpillar parts are crafted from premium OEM-quality materials for superior strength and durability. Engineered for precision, they are built to endure the extreme conditions faced by today's heavy-duty equipment.
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