C-Series Cylinder Head Bolt Kits

Torque-to-yield cylinder head bolts are vital for engine integrity, designed to undergo controlled elastic deformation during torquing for a secure clamping force. This ensures a proper seal, preventing leaks and optimizing combustion efficiency. However, reusing these bolts poses a significant risk of engine failure as their single-use design ensures proper tension and structural integrity.

Featured Products


For optimal engine performance look no further than CTP Turbochargers. Our Turbochargers produce more power and provide significant improvements in your engine’s efficiency.

Radiator Cooling Fans for Komatsu®

Prolong the life of your engine; keep it running cooler and more efficiently with CTP Radiator Cooling Fans for Komatsu®.

Engine Covers

Our inventory includes a range of engine covers, catering to both popular and highly sought-after covers. Whether you’re dealing with worn-out used options or facing the expense of new ones, CTP has got your needs covered.

New Parts


Part No. 6E1244

For: 844, 844H, 844K, 990, 990 II, 990H, 990K

Part No. 1932781

For: 330C, 330C L, C-9

Part No. 4921475

For: 330D2, 330D2 L, 326D2 / SERIAL; HM4, LJE, EX7, FEX, XDR, RCK

Part No. 600-813-9312

For: 6D125E, S6D125E, SA6D125E, SA6D140, SA6D140E, SAA6D125E
All C-Series engines require that the used head bolts be discarded and replaced with new head bolts every time there is a repair. Used TTY (Torque-To-Yield) head bolts will snap in the process of re-torqueing the cylinder head… read more

Freddy Jigsaw Puzzle 3 in 1

Freddy the Filter Puzzles help children in their developmental skills by continuing to challenge them as they progress through three levels!

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Inside News

VISIT US AT: Florida Trucking Show in Fort Lauderdale. February 24th & 25th, 2024. Booth #1118 at Greater Fort Lauderdale Convention Center.

CTP Online Auction

Join our CTP Online Auction today, and purchase our products at a discounted rate. Enter the auction and start saving now! Happy bidding!


Quality with Value… Guaranteed™

Part Numbers are used for reference purposes only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc. Komatsu® is the registered trademark of Komatsu Ltd. John Deere® is the registered trademark of John Deere Company. CTP® and Freddy the Filter® are registered trademarks of Costex Corporation.

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