Makita 454317-7 Spare Part - CONNECTING ROD HR4013C
Genuine Makita connecting rod (part no. 454317-7) — a precision machined metal linkage used inside the hammer mechanism of Makita SDS‑max rotary hammers. It transfers the crank/piston motion that creates the percussion action, so a worn or broken rod will cause lost impact or noisy operation.
Key details:
- Part: Makita 454317-7 — "connecting rod" (internal hammer linkage).
- Material/finish: hardened, machined metal designed to Makita tolerances for long service life and accurate fit in the impact assembly.
- Fit/installation: supplied as a single replacement rod; installs in the crank/hammer assembly and is a direct drop‑in for the listed models when fitted with the corresponding retaining parts and seals.
Example models this part is used with (examples from Makita parts lists and exploded diagrams):
- HR4013C (SDS‑MAX rotary hammer).
- HR4003C and HR005G (related HR‑series rotary hammers).
- DHR400 (DHR400ZK / DHR400ZKU) cordless SDS‑max rotary hammer.
Why choose the original Makita part:
- Restores correct clearances and impact timing that aftermarket or improvised repairs may not reproduce, helping the hammer return to factory performance and service life.
Sold as one connecting rod (Makita 454317‑7). If your tool shows reduced percussion, excessive noise from the crank area, or broken linkage on inspection, this is the exact Makita replacement used in the model diagrams above.
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Compatible models this part will fit:
