Bosch 1610210043 Spare Part - O-ring

Original Bosch O-ring 1610210043 — a small but critical sealing ring (4.0 × 1.5 mm) designed to restore a tight seal in compatible Bosch planers and routers. This is the original Bosch replacement part supplied as a single O‑ring and intended to match the factory dimensions and tolerances.

Key details:

- Part number: 1610210043 (also shown as 1 610 210 043 / 1.610.210.043).

- Size: 4.0 mm outer/inner nominal diameter with a 1.5 mm cross‑section (listed as 4,0 × 1,5 mm).

- Form: circular elastomer O‑ring (single piece, sold individually).

Fits / typical applications:

- Commonly used in Bosch bench and hand planers such as the GHO 16‑82 D and GHO 26‑82 D, and related planer variants (also listed for GHO 40‑82 C).

- Also appears in routing/trim tool assemblies such as the POF 400 A and in certain accessory parts like the width‑fence assembly (type numbers shown in Bosch exploded views).

Why this part matters:

If your tool is leaking, the fence or dust‑seal is loose, or a small internal seal has deteriorated, replacing this original Bosch O‑ring restores the factory sealing fit and prevents dust or lubricant migration that can cause wear. It’s a straightforward, low‑cost fix — swap the old ring for the new one and reassemble following the tool’s exploded view.

Note: confirm the type/10‑digit model number on your tool (or the exploded‑view position) to ensure this exact O‑ring is the correct item for your specific Bosch model.

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