150121-00244 Connecting Rod for Doosan D24 & D34 Engines

   The 150121-00244 connecting rod is forged from high-tensile steel to convert the energy of combustion into rotational power. In the Doosan D24 (2.4L) engine—famous for its DPF-free Stage IIIB compliance—this rod must withstand intense thermal loads and high-speed cycling. It features precision-honed bores for both the piston pin (small end) and the crankshaft journal (big end) to ensure a perfect oil film and minimal friction.

The SPARKLING MACHINERY NEW 150121-00244 C-ROD Photo:

Why Choose the SPARKLING 150121-00244 C-ROD?

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •    - Weight Balanced: Engineered to strict mass tolerances to ensure smooth engine operation and reduced vibration across the 4-cylinder assembly.

                                                                      •    - Fracture-Split Technology: Many modern Doosan rods utilize fracture-splitting at the big end to provide a unique, interlocking mating surface between the rod and the cap, significantly increasing structural strength.

                                                                      •    - Turbo-Ready Durability: Specifically treated to handle the increased "peak firing pressure" found in turbocharged D24 and D34 applications.

                                                                      •    - Direct OEM Replacement: Matches part number 150121-00244 exactly, ensuring compatibility with standard-size rod bearings.

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Q&A Section

Q1: How do I know if my DX63-3 uses this Doosan rod or a Yanmar rod?

A: Check the engine serial number plate on the valve cover. If the engine model starts with "D24" or "D34", this rod is correct. If it starts with "4TNV", you require a Yanmar-specific part.

Q2: Should I replace all four rods at once?

A: If the engine suffered a catastrophic failure (like a "thrown rod" or hydrolock), it is best to replace all four to ensure the engine remains perfectly balanced. For minor repairs, a single rod can be replaced, provided it matches the Weight Class of the remaining three.

Q3: Does this rod come with the small-end bushing installed?

A: Most high-quality replacements for 150121-00244 come with the piston pin bushing pre-pressed and honed to size, but always confirm with your supplier.

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   - Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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