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Details
| Specification | Value |
|---|---|
| Brand | FAST |
| MPN | ft51772 |
| Bore Diameter [mm] | 67.6 mm |
| Bolt Head Diameter [mm] | 30.38 mm |
OE numbers (4)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—6420304120
- MERCEDES-BENZ—6420305220
- MERCEDES-BENZ—A6420304120
- MERCEDES-BENZ—A6420305220
Where this part fits
Original-fit position for OE 6420304120.
About this product
FAST Connecting Rod (FT51772) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Bore Diameter [mm]: 67, Plastic mm, Bolt Head Diameter [mm]: 30, 38 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with MERCEDES-BENZ vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 02.11.046, 40006, 40310, 40311 and 5 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FAST 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 (5)
Connecting Rod FAST FT51772 — compatible car models
| Car models | MERCEDES-BENZ: C-CLASS T-Model (S203), C-CLASS T-Model (S204), C-CLASS (W203), C-CLASS (W204), CLK (C209), CLK Convertible (A209), CLS (C218), CLS (C219), CLS Shooting Brake (X218), E-CLASS Convertible (A207) (+20 more) |
|---|---|
| Engines | C 320 CDI (203.220); C 300 CDI 4-matic (204.292); C 320 CDI (203.020); C 300 CDI 4-matic (204.092); CLK 320 CDI (209.320); CLK 320 CDI (209.420); CLS 350 BlueTEC / d (218.326); CLS 320 CDI; CLS 350 BlueTEC / d (218.926); E 350 BlueTEC (207.426); E 350 BlueTEC (207.326); E 280 CDI (211.620); E 280 T CDI (211.220); E 300 CDI (212.220); E 280 CDI (211.020) (+15 more) |
| Year of manufacture | 1989-2020 |
| Manufacturer article number (MPN) | FT51772 |
| OE part numbers | 6420304120, 6420305220, A6420304120, A6420305220 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FAST ft51772 . Bolt Head Diameter [mm]: 30,38 mm. Bore Diameter [mm]: 67,6 mm
- 1x Connecting Rod
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 Connecting Rod compatible with my car?
This Connecting Rod fits MERCEDES-BENZ 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 FAST Connecting Rod have?
This FAST Connecting Rod has the following specifications: Bore Diameter [mm]: 67,6 mm; Bolt Head Diameter [mm]: 30,38 mm. Check the full specifications table above for complete details.
What OE part numbers does this Connecting Rod replace?
This Connecting Rod replaces OE part numbers: 6420304120, 6420305220, A6420304120, A6420305220. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Connecting Rod cost?
This FAST Connecting Rod is available for £106.99. Connecting Rod prices vary depending on brand, specifications, and vehicle compatibility. FAST parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Connecting Rod?
Regular inspection of your Connecting Rod 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 Connecting Rod?
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 Connecting Rod fitted by a professional mechanic.
Can I use this part as a replacement for OE 6420304120?
Yes, this FAST Connecting Rod is a direct replacement for OE part number 6420304120. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
