1. Basic Part Information
- OEM Part No.: 12430210 (also marked RS‑12430210)
- Product Name: Snap Ring / Circlip / Retaining Ring
- Brand: MWM (Deutz Group)
- Applicable Engines:
- MWM TBG 632
- MWM TCG 2032
- MWM CG 260
- Function: Axial retention for crankshaft, camshaft, or piston pin components; prevents axial movement under vibration and thermal expansion.
2. Technical Specifications
| Parameter |
Specification |
| Type |
External snap ring (shaft‑mounted) |
| Material |
High‑carbon spring steel / 65Mn; some versions stainless steel |
| Surface Finish |
Phosphate coated + oiled (anti‑rust) |
| Standard |
DIN 471 (metric external circlip) |
| Operating Temp |
−40 °C to +180 °C |
| Feature |
Open‑end design for installation with snap‑ring pliers |
3. Dimensions (Typical for MWM 12430210)
- Shaft Diameter: ~40 mm
- Ring Outer Diameter: ~44 mm
- Ring Thickness: ~1.75 mm
- Groove Width: ~1.85 mm
- Groove Depth: ~2.1 mm
(Exact values per MWM engineering drawing; above are field‑confirmed typical sizes for this part number.)
4. Product Features
- High Elasticity: Maintains clamping force under repeated thermal cycles.
- Wear Resistance: Hardened and tempered for long service life in engine environments.
- Anti‑Corrosion: Phosphate + oil finish protects against moisture and engine oils.
- Easy Installation: Designed for standard external snap‑ring pliers.
5. Applications & Mounting Position
- Typical Location: Crankshaft gear, camshaft bearing, or piston pin bore in MWM TBG 632 / TCG 2032 / CG 260 gas/diesel engines.
- Purpose: Prevents lateral shifting of rotating components during high‑speed operation.
6. Packaging & Marking
- Marking: “12430210”, “MWM”, “Made in Spain” stamped on ring face.
- Packaging:
- Individually wrapped in anti‑rust paper or PE bag.
- Outer box: MWM original packaging with part number, engine model, and quantity.
- Quantity: Supplied as single piece (not a set).
7. Quality & Warranty
- Quality Standard: OEM original quality, ISO 9001 / DIN compliance.
- Warranty: 12 months under normal operating conditions.