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Details
| Specification | Value |
|---|---|
| Brand | CORTECO |
| MPN | 12015423b |
| Height 1 [mm] | 10 mm |
| Swirl Type | RD |
| Outer Diameter 1 [mm] | 70 mm |
| Inner Diameter 1 [mm] | 28 mm |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- RENAULT / RENAULT KOREA—7703087148
- MITSUBISHI—M342487
Where this part fits
Original-fit position for OE M342487. The red ring marks where this part installs on the vehicle.

About this product
CORTECO Shaft Seal Differential (12015423B) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Height 1 [mm]: Brass mm, Material: 29, Swirl Type: Red, Dust Cover: 0, Outer Diameter 1 [mm]: 70 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with MITSUBISHI, RENAULT, SEAT 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: 11409, 605, 60911409, 702431 and 4 more. Matching these numbers confirms a like-for-like replacement with no loss of function. CORTECO 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.
About CORTECO
Corteco, part of the Freudenberg Group founded in 1849 in Weinheim, Germany, is a specialist manufacturer of sealing and vibration control components. Corteco specialises in oil seals, gaskets, engine mounts, transmission mounts, and shaft seals for all vehicle systems. As an OE supplier through Freudenberg's partnerships with major car manufacturers, Corteco components maintain the same quality standards as original parts. With Freudenberg's 170+ years of materials science expertise, Corteco delivers precision-engineered sealing and damping solutions trusted in millions of vehicles worldwide.
Suitable cars
Equivalent products (6)
Shaft Seal Differential CORTECO 12015423B — compatible car models
| Car models | MITSUBISHI: CARISMA (DA); RENAULT: 19 I (B/C53), 19 I Cabriolet (D53), 19 I Chamade (L53), 19 I Hatchback Van (S53), 19 II (B/C53), 19 II Cabriolet (D53, 853), 19 II Chamade (L53), 19 II Hatchback Van (S53), 21 (B48), 21 Estate (K48) (+19 more) |
|---|---|
| Engines | 1.9 TD (DA4A); 1.2; 1.7; 1.7 (D53C); 1.4 (B48D); 1.7 Cat (K48F); 1.4 (L48D); 1.0 (1222, 1392); 0.8 (2381); 2.0 16V Turbo (DE0U, DE0V); 1.1; 1.0; 1.2 (SB0A, SB0F, SB10); 1.9 dTi (JE0M); 1.6 16V (B568, B561) (+6 more) |
| Year of manufacture | 1972-2016 |
| Manufacturer article number (MPN) | 12015423B |
| OE part numbers | 7703087148, M342487 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
CORTECO 12015423b . Dust Cover: 0. Height 1 [mm]: 10 mm. Inner Diameter 1 [mm]: 28 mm. Material: 29. Outer Diameter 1 [mm]: 70 mm. Swirl Type: RD
- 1x Shaft Seal Differential
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 Shaft Seal Differential compatible with my car?
This Shaft Seal Differential fits MITSUBISHI, RENAULT, SEAT 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 CORTECO Shaft Seal Differential have?
This CORTECO Shaft Seal Differential has the following specifications: Height 1 [mm]: 10 mm; Material: 29; Swirl Type: RD; Dust Cover: 0; Outer Diameter 1 [mm]: 70 mm; Inner Diameter 1 [mm]: 28 mm. Check the full specifications table above for complete details.
What OE part numbers does this Shaft Seal Differential replace?
This Shaft Seal Differential replaces OE part numbers: 7703087148, M342487. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Shaft Seal Differential cost?
This CORTECO Shaft Seal Differential is available for £7.99. Shaft Seal Differential prices vary depending on brand, specifications, and vehicle compatibility. CORTECO parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Shaft Seal Differential?
Regular inspection of your Shaft Seal Differential 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 Shaft Seal Differential?
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 Shaft Seal Differential fitted by a professional mechanic.
Can I use this part as a replacement for OE 7703087148?
Yes, this CORTECO Shaft Seal Differential is a direct replacement for OE part number 7703087148. 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 CORTECO 12015423B the same as the CORTECO 01002281B?
No, while both are Shaft Seal Differential parts, they are different products. The CORTECO 12015423B has Height 1 [mm]: 10 mm, Material: 29, Swirl Type: RD. The CORTECO 01002281B 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.