- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
.JPG&w=3840&q=75)
Details
| Specification | Value |
|---|---|
| Brand | DT Spare Parts |
| MPN | 1.18303 |
| Thread Size 1 | M16 x 1.5 |
| Thread Size 2 | M22 x 1.5 |
| Operating pressure to [bar] | 20 bar |
| Opening pressure (21) [bar] | 6.5 bar |
| Opening pressure (22) [bar] | 6.5 bar |
| Opening pressure (23) [bar] | 6.5 bar |
| Opening pressure (24) [bar] | 6.5 bar |
| Closing pressure (21) [bar] | 4.5 bar |
| Closing pressure (22) [bar] | 4.5 bar |
| Closing pressure (23) [bar] | 4.5 bar |
| Closing pressure (24) [bar] | 4.5 bar |
| Net Weight [g] | 857 g |
OE numbers (13)
About this product
Sourced from DT Spare Parts, this multi circuit protection valve (1.18303) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Thread Size 1: M16 x 1, Rubber, Thread Size 2: M22 x 1, Rubber, Guarantee: Aluminium, Operating pressure to [bar]: 20 bar, Opening pressure (21) [bar]: Plastic, Rubber bar — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 0271944, 0271944A, 0271944R, 0384037 and 45 more. Matching these numbers confirms a like-for-like replacement with no loss of function. DT Spare Parts 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (37)
Show all 37 OE numbers
Multi Circuit Protection Valve DT Spare Parts 1.18303 — compatible car models
| Manufacturer article number (MPN) | 1.18303 |
|---|---|
| OE part numbers | 0271944, 0271944A, 0271944R, 0384037, 0384037A, 0384037R, 271944, 271944A, 271944R, 307605, 384037, 384037A, 384037R |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
DT Spare Parts 1.18303 . Closing pressure (21) [bar]: 4,5 bar. Closing pressure (22) [bar]: 4,5 bar. Closing pressure (23) [bar]: 4,5 bar. Closing pressure (24) [bar]: 4,5 bar. Guarantee: 2. Net Weight [g]: 857 g. Opening pressure (21) [bar]: 6,5 bar. Opening pressure (22) [bar]: 6,5 bar
- 1x Multi Circuit Protection Valve
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 Multi Circuit Protection Valve 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 Multi Circuit Protection Valve fits. All fitment data is verified through TecDoc.
What specifications does this DT Spare Parts Multi Circuit Protection Valve have?
This DT Spare Parts Multi Circuit Protection Valve has the following specifications: Thread Size 1: M16 x 1,5; Thread Size 2: M22 x 1,5; Guarantee: 2; Operating pressure to [bar]: 20 bar; Opening pressure (21) [bar]: 6,5 bar; Opening pressure (22) [bar]: 6,5 bar. Check the full specifications table above for complete details.
What OE part numbers does this Multi Circuit Protection Valve replace?
This Multi Circuit Protection Valve replaces OE part numbers: 0271944, 0271944A, 0271944R, 0384037, 0384037A, 0384037R, 271944, 271944A and 5 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Multi Circuit Protection Valve cost?
This DT Spare Parts Multi Circuit Protection Valve is available for £108.99. Multi Circuit Protection Valve prices vary depending on brand, specifications, and vehicle compatibility. DT Spare Parts parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Multi Circuit Protection Valve?
Regular inspection of your Multi Circuit Protection Valve 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 Multi Circuit Protection Valve?
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 Multi Circuit Protection Valve fitted by a professional mechanic.
Can I use this part as a replacement for OE 0271944?
Yes, this DT Spare Parts Multi Circuit Protection Valve is a direct replacement for OE part number 0271944. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
.JPG&w=3840&q=75)
