144354-6 supersedes older part numbers: 141229-0
Makita 144354-6 — Gear Housing Complete (genuine Makita) — replacement gearbox casing for the DHR242 / DHR243 of cordless combi hammers. This die‑cast metal housing holds the drive gears and bearing seats in precise alignment to restore smooth drilling and chiselling performance; the assembly listing also shows the included oil seal (part 213345-9, 25 mm).
Fits examples: DHR242 and DHR243 / DHR242RFE, DHR242RFEV, DHR242RMJ, DHR242RMJV, DHR242Z and BHR242 / BHR243. It’s the direct replacement gearbox housing called out on Makita parts diagrams for these models.
Why this part helps: if your gear case is cracked, stripped threads or damaged mounting faces are causing misaligned gears, replacing the complete housing restores correct gear mesh and bearing seating so the tool runs quietly and reliably again. Designed and finished to original Makita factory dimensions to accept the tool’s original fasteners and seals.
Compact, service‑grade replacement for owners doing repairs — a straightforward way to get the gearbox of your Makita combi hammer back to original working condition with genuine Makita power tool parts.
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