RacingDiffs Traction Unit RD4013
Direct replacement direct replacement. 1 year warranty.
| Brand | RacingDiffs |
| Type | Traction Unit |
| Part Number | RD4013 |
| Was | US $396.00 |
| You save: US $39.60 | |
| Item price | US $356.40 |
| Estimated total | US $356.40 |
| Fitment Type | Direct Replacement |
| Gear Ratio | Fits to all gear ratios |
| Warranty | 1 Year |
| Differential Type | Limited-Slip |
| Surface Finish | Molybdenum - Ceramics |
| Country of Origin | United States |
| Warranty | 1 Year |
| Our Price | £302.94 |
Bestselling items to complement your choice
Suitable for all compatible Z3 188mm vehicles
Compatibility with passenger cars
Direct replacement fitment confirmed. Always verify with your VIN before ordering.
| Model | Engine | Year | Chassis | Trans. | Fit |
|---|---|---|---|---|---|
| Z3 | All variants | — | E30 E36 E34 E32 | Manual | Direct Fit |
| 188mm | All variants | — | E30 E36 E34 E32 | Manual | Direct Fit |
Fully Equivalent Products
OE reference numbers comparable with the original spare part. Verify the OEN before ordering.
RD4013: spare parts with similar characteristics
| Manufacturer | Part Number |
|---|---|
| LuK | 03-030 |
| Sachs | K70206-01 |
| Valeo | 803022 |
| Exedy | BMW335 |
| Blue Print | ADN13109 |
| Manufacturer | Part Number |
|---|---|
| Kawe | 962488 |
| Febi Bilstein | 28702 |
| NK | 124412 |
| Textar | 2521503 |
| ATE | 618048 |
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Major advantages of RacingDiffs RD4013
Traction Unit · RacingDiffs quality
Built to RacingDiffs specifications with rigorous quality control for reliable performance.
Bolt-on replacement requiring no modifications. Direct OEM-equivalent fit.
Precision-engineered component designed for traction unit applications.
Engineered for consistent performance throughout the service life.
Built to meet or exceed original equipment specifications.
Full 1 year manufacturer warranty on materials and workmanship.
About RacingDiffs Clutch Parts
RacingDiffs manufactures quality clutch parts built to OEM specifications and designed for reliable performance in BMW vehicles. Products are subject to rigorous quality control before dispatch.
Clutch Parts
Quality clutch parts built to exceed OEM specifications for BMW platform vehicles.
Worn Clutch Parts – Warning Signs
Worn components cause reduced performance, unusual noises, vibration, and can lead to consequential damage if not replaced. Timely replacement with a quality RacingDiffs part prevents further damage and restores original function.
Optimal performance for BMW
- Was: US $396.00
- : You save: US $39.60
- Item price: US $356.40
- Estimated total: US $356.40
44 Auto Parts — Do-It-Yourself clutch parts replacement guides
Tutorial / Step-by-step guide for clutch parts removal and installation
RD4013 compatible with the following popular BMW models
RacingDiffs RD4013: Review and Evaluation
11 verified customer reviews
Excellent quality and easy installation. Works exactly as expected. Would recommend RacingDiffs parts.
Good price for a quality clutch parts. Fitted without issues. Fast delivery from 44 Auto Parts.
Correct part, fits well. RacingDiffs quality is noticeable. Will buy again.
Dimensions match perfectly. Good build quality from RacingDiffs. Used alongside other quality parts.
Have you bought RacingDiffs RD4013 from 44 Auto Parts?
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Questions and answers 0 open questions
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Frequently Asked Questions
Fits BMW Z3 188mm on E30 E36 E34 E32 chassis. Always confirm with your VIN before ordering.
Was: US $396.00. : You save: US $39.60. Item price: US $356.40. Estimated total: US $356.40. Delivery: Varies.
Yes, RacingDiffs provides a 1 Year manufacturer warranty on this product.
Methods of Payment:
Questions? Read the RD4013 FAQ and reviews
Need help? Contact us
Delivery Method:
Free shipping on orders over £75. Under £75 — £3.99 delivery. Order before 3pm for same-day dispatch Mon–Fri.