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Details
| Specification | Value |
|---|---|
| Brand | MEC-DIESEL |
OE numbers (1)
Search by this OE number to find compatible parts
- SUBARU / SUZUKI—12100-61840-050
Where this part fits
Original-fit position for OE 1210061840050. The red ring marks where this part installs on the vehicle.
About this product
The MEC-DIESEL Piston (858495) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. This part supersedes original equipment references: 12100-61840-050, 20SZ012. Matching these numbers confirms a like-for-like replacement with no loss of function. MEC-DIESEL is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (1)
Piston MEC-DIESEL 858495 — compatible car models
| Manufacturer article number (MPN) | 858495 |
|---|---|
| OE part numbers | 12100-61840-050 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MEC-DIESEL 858495
- 1x Piston
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Piston compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Piston fits. All fitment data is verified through TecDoc.
What specifications does this MEC-DIESEL Piston have?
The package includes the Piston as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Piston replace?
This Piston replaces OE part numbers: 12100-61840-050. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Piston cost?
Piston prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this MEC-DIESEL Piston. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Piston?
Regular inspection of your Piston is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Piston?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Piston fitted by a professional mechanic.
Can I use this part as a replacement for OE 12100-61840-050?
Yes, this MEC-DIESEL Piston is a direct replacement for OE part number 12100-61840-050. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the MEC-DIESEL 858495 the same as the MEC-DIESEL 852140M?
No, while both are Piston parts, they are different products. The MEC-DIESEL 858495 has specific dimensions, material composition, and fitting requirements. The MEC-DIESEL 852140M may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
