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Details
| Specification | Value |
|---|---|
| Brand | CALORSTAT by Vernet |
| MPN | bs4541 |
| Operating Mode | ME |
OE numbers (14)
Search by this OE number to find compatible parts
- OPEL—1240551
- OPEL—1240592
- OPEL—1242551
- SAAB—4233342
- ALFA ROMEO—60585583
- VAUXHALL—90243815
- VAUXHALL—90244648
- VAUXHALL—90245780
- CHEVROLET / DAEWOO / GM KOREA—96312343
- PORSCHE—99661311000
- PORSCHE—99661311001
- PORSCHE—99661311101
- PORSCHE—99661311301
- PORSCHE—99661311302
Where this part fits
Original-fit position for OE 99661311302. The red ring marks where this part installs on the vehicle.
About this product
The CALORSTAT by Vernet Stop Light Switch (BS4541) 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: Operating Mode: Mesh Filter. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit ALFA ROMEO, OPEL, PORSCHE, SAAB and 1 other makes models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 1240551, 1240592, 1242551, 1735443 and 23 more. Matching these numbers confirms a like-for-like replacement with no loss of function. CALORSTAT by Vernet 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 (13)
Stop Light Switch CALORSTAT by Vernet BS4541 — compatible car models
| Car models | ALFA ROMEO: 164 (164); OPEL: VECTRA B Estate (J96), VECTRA B Hatchback (J96), VECTRA B (J96); PORSCHE: 911 (996), 911 (997), 911 Convertible (997), 911 Targa (996), 911 Targa (997), BOXSTER (986), BOXSTER (987), BOXSTER Spyder (987), CARRERA GT (980), CAYMAN (987); SAAB: 900 II, 900 II Convertible, 900 II Coupe, 9-5 Estate (YS3E), 9-5 (YS3E); VAUXHALL: VECTRA (B) Estate (J96), VECTRA (B) Hatchback (J96), VECTRA (B) Saloon (J96) |
|---|---|
| Engines | 3.0 24V Q4 (164.K1M, 164.K1C); 2.0 DI 16V (F35); 2.0 DI 16V (F68); 2.0 DI 16V (F19); 3.6 GT3; 3.6 GT2 RS; 3.8 Carrera 4S / 4 GTS; 3.6; 3.6 Carrera 4; 2.5; 2.9; 3.4 (987.720); 5.7; 2.7; 2.0 -16 Turbo (+2 more) |
| Year of manufacture | 1987-2013 |
| Manufacturer article number (MPN) | BS4541 |
| OE part numbers | 1240551, 1240592, 1242551, 4233342, 60585583, 90243815, 90244648, 90245780, 96312343, 99661311000, 99661311001, 99661311101, 99661311301, 99661311302 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
CALORSTAT by Vernet bs4541 . Operating Mode: ME
- 1x Stop Light Switch
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 Stop Light Switch compatible with my car?
This Stop Light Switch fits ALFA ROMEO, OPEL, PORSCHE, SAAB, VAUXHALL 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 CALORSTAT by Vernet Stop Light Switch have?
This CALORSTAT by Vernet Stop Light Switch has the following specifications: Operating Mode: ME. Check the full specifications table above for complete details.
What OE part numbers does this Stop Light Switch replace?
This Stop Light Switch replaces OE part numbers: 1240551, 1240592, 1242551, 4233342, 60585583, 90243815, 90244648, 90245780 and 6 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Stop Light Switch cost?
This CALORSTAT by Vernet Stop Light Switch is available for £17.99. Stop Light Switch prices vary depending on brand, specifications, and vehicle compatibility. CALORSTAT by Vernet parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Stop Light Switch?
Regular inspection of your Stop Light Switch 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 Stop Light Switch?
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 Stop Light Switch fitted by a professional mechanic.
Can I use this part as a replacement for OE 1240551?
Yes, this CALORSTAT by Vernet Stop Light Switch is a direct replacement for OE part number 1240551. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
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