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Details
| Specification | Value |
|---|---|
| Brand | MERTZ |
| MPN | m-s5174 |
| Fitting Position | Bottom |
OE numbers (6)
Search by this OE number to find compatible parts
- BMW—22 31 6 750 858
- BMW—22 31 6 773 125
- BMW—22 31 6 773 693
- BMW—6 750 858
- BMW—6 773 125
- BMW—6 773 693
Where this part fits
Original-fit position for OE 22316773125. The red ring marks where this part installs on the vehicle.
About this product
Sourced from MERTZ, this mounting automatic transmission (M-S5174) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Fitting Position: U, Mounting Type: Cast Iron — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit BMW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 20 92 6308, 21652523, 22 31 6 750 858, 22 31 6 773 125 and 6 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MERTZ 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
Equivalent products (4)
Mounting Automatic Transmission MERTZ M-S5174 — compatible car models
| Car models | BMW: 3 Coupe (E92), 3 (E46), 3 (E90), 3 Touring (E46), 3 Touring (E91), 5 (E60), X1 (E84), X3 (E83) |
|---|---|
| Engines | 320 d xDrive; 325 xi; 525 xd; xDrive 18 d; 2.5 i |
| Year of manufacture | 1997-2015 |
| Manufacturer article number (MPN) | M-S5174 |
| OE part numbers | 22 31 6 750 858, 22 31 6 773 125, 22 31 6 773 693, 6 750 858, 6 773 125, 6 773 693 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
MERTZ m-s5174 . Fitting Position: U. Mounting Type: 3
- 1x Mounting Automatic Transmission
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 Mounting Automatic Transmission compatible with my car?
This Mounting Automatic Transmission fits BMW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this MERTZ Mounting Automatic Transmission have?
This MERTZ Mounting Automatic Transmission has the following specifications: Fitting Position: U; Mounting Type: 3. Check the full specifications table above for complete details.
What OE part numbers does this Mounting Automatic Transmission replace?
This Mounting Automatic Transmission replaces OE part numbers: 22 31 6 750 858, 22 31 6 773 125, 22 31 6 773 693, 6 750 858, 6 773 125, 6 773 693. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Mounting Automatic Transmission cost?
This MERTZ Mounting Automatic Transmission is available for £18.99. Mounting Automatic Transmission prices vary depending on brand, specifications, and vehicle compatibility. MERTZ parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Mounting Automatic Transmission?
Regular inspection of your Mounting Automatic Transmission 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 Mounting Automatic Transmission?
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 Mounting Automatic Transmission fitted by a professional mechanic.
Can I use this part as a replacement for OE 22 31 6 750 858?
Yes, this MERTZ Mounting Automatic Transmission is a direct replacement for OE part number 22 31 6 750 858. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
