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Details
| Specification | Value |
|---|---|
| Brand | SACHS |
| Category | release bearing |
| Parameter | KZIS-1 |
OE part numbers
No OEM references found.
About this product
The SACHS release bearing (3151 808 001) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Parameter: KZIS-1. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 05 3151 808 001, 352 379, 48SCRN32K, 48TKA-3201 and 42 more. Matching these numbers confirms a like-for-like replacement with no loss of function. SACHS 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.
release bearing buying guide
Why replace this part?
The clutch release bearing (throw-out bearing) is a ball bearing assembly that slides on the gearbox input shaft guide tube and, when the clutch pedal is pressed, contacts the clutch pressure plate diaphragm spring to disengage the clutch. Although it only contacts the pressure plate during clutch operation, its failure causes noise and complete loss of clutch function. It is always replaced as part of a complete clutch kit.
Signs you need a replacement
- Squealing, chirping, or grinding noise that changes with clutch pedal position
- noise disappears when clutch pedal is fully released or fully depressed
- clutch pedal vibration
- difficulty engaging gears due to incomplete clutch disengagement
- noise worsens progressively over weeks
When to replace
Always replace with the clutch disc and pressure plate — separating these items makes no economic sense given shared labour costs. Typically every 60,000–100,000 miles. Continuous-contact release bearings (common on VAG group vehicles) wear faster as they are always loaded.
About SACHS
Sachs, established in 1895 in Schweinfurt, Germany, is a leading manufacturer of drivetrain and suspension components now part of the ZF Group. Sachs specialises in clutch systems, shock absorbers, dual-mass flywheels, and torque converters. As a tier-one OE supplier to manufacturers including BMW, Mercedes-Benz, Volkswagen, and Audi, Sachs components deliver the same quality found in new vehicles. Choosing Sachs ensures reliable drivetrain performance with products engineered to withstand the most demanding driving conditions.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (47)
Show all 47 OE numbers
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
SACHS 3151808001 release bearing. Parameter: KZIS-1
- 1x release bearing
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 release bearing 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 release bearing fits. All fitment data is verified through TecDoc.
What specifications does this SACHS release bearing have?
This SACHS release bearing has the following specifications: Parameter: KZIS-1. Check the full specifications table above for complete details.
How much does a release bearing cost?
This SACHS release bearing is available for £33.99. Release bearing prices vary depending on brand, specifications, and vehicle compatibility. SACHS parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my release bearing?
Listen for a squealing or rumbling noise that appears when the clutch pedal is depressed and disappears when released. This noise points specifically to the release (thrust) bearing and should not be ignored.
What tools do I need to replace a release bearing?
Tools needed: gearbox jack, circlip pliers (some designs), socket set, clutch input shaft grease. Difficulty: Professional recommended. Safety warning: Always replace the release (thrust) bearing whenever the clutch is replaced -- re-doing this job to replace only the bearing costs the same in labour as doing it right the first time.
Is the SACHS 3151 808 001 the same as the SACHS 1805 042 000?
No, while both are release bearing parts, they are different products. The SACHS 3151 808 001 has Parameter: KZIS-1. The SACHS 1805 042 000 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.
