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Details
| Specification | Value |
|---|---|
| Brand | CEI |
| MPN | 123.341 |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- VOLVO—21302566
- RENAULT TRUCKS / RENAULT / RENAULT KOREA—56 00 707 663
- RENAULT TRUCKS / RENAULT / RENAULT KOREA—74 21 302 566
Where this part fits
Original-fit position for OE 21302566. The red ring marks where this part installs on the vehicle.
About this product
CEI Ring Gear External Planetary Gearbox (123.341) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. This part supersedes original equipment references: 123.341, 123341000, 21302566, 56 00 707 663 and 4 more. Matching these numbers confirms a like-for-like replacement with no loss of function. CEI 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (3)
Ring Gear External Planetary Gearbox CEI 123.341 — compatible car models
| Manufacturer article number (MPN) | 123.341 |
|---|---|
| OE part numbers | 21302566, 56 00 707 663, 74 21 302 566 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
CEI 123.341
- 1x Ring Gear External Planetary Gearbox
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Ring Gear External Planetary Gearbox 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 Ring Gear External Planetary Gearbox fits. All fitment data is verified through TecDoc.
What specifications does this CEI Ring Gear External Planetary Gearbox have?
The package includes the Ring Gear External Planetary Gearbox 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 Ring Gear External Planetary Gearbox replace?
This Ring Gear External Planetary Gearbox replaces OE part numbers: 21302566, 56 00 707 663, 74 21 302 566. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Ring Gear External Planetary Gearbox cost?
This CEI Ring Gear External Planetary Gearbox is available for £677.99. Ring Gear External Planetary Gearbox prices vary depending on brand, specifications, and vehicle compatibility. CEI parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Ring Gear External Planetary Gearbox?
Regular inspection of your Ring Gear External Planetary Gearbox 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 Ring Gear External Planetary Gearbox?
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 Ring Gear External Planetary Gearbox fitted by a professional mechanic.
Can I use this part as a replacement for OE 21302566?
Yes, this CEI Ring Gear External Planetary Gearbox is a direct replacement for OE part number 21302566. 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 CEI 123.341 the same as the CEI 123.132?
No, while both are Ring Gear External Planetary Gearbox parts, they are different products. The CEI 123.341 has specific dimensions, material composition, and fitting requirements. The CEI 123.132 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.
