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Details
| Specification | Value |
|---|---|
| Brand | HELLA |
| MPN | 4rd933332-037 |
| Voltage [V] | 12 V |
| Plug Type ID | B1 |
| Temperature range [°C] | 80 °C |
| Protection Type (IP Code) | IP6K7 |
| Protection Type (IP Code) | IP54 |
| Number of pins | 5 -pin connector |
| Wiring Diagramme | W2 |
| Capacity at 12V | 20/30A |
| Ohmic Load [A] | 30 A |
| Ohmic Load [A] | 20 A |
| Inductive Load [A] | 6 A |
| Inductive Load [A] | 20 A |
| Capacitive Load [A] | 10 A |
| Capacitive Load [A] | 20 A |
OE numbers (1)
Search by this OE number to find compatible parts
- CASE IH—86508603
About this product
HELLA Relay Main Current (4RD 933 332-037) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Voltage [V]: Zinc V, Plug Type ID: B1, Temperature range [°C]: 80 °C, Colour: Ceramic, Protection Type (IP Code): IP6K7 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. This part supersedes original equipment references: 4RD 933 332-037, 86508603, 933 332-037, 933332037. Matching these numbers confirms a like-for-like replacement with no loss of function. HELLA 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.
About HELLA
HELLA, founded in 1899 in Lippstadt, Germany, is a global automotive lighting and electronics specialist now operating as FORVIA HELLA. HELLA specialises in headlamps, rear lights, signal lighting, sensors, actuators, and electronic control units. As an OE supplier to virtually all major car manufacturers, HELLA products represent the cutting edge of automotive lighting and electronic technology. With 125+ years of innovation in vehicle illumination and electronics, HELLA is the definitive choice for high-quality lighting and electronic component replacements.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (3)
Relay Main Current HELLA 4RD 933 332-037 — compatible car models
| Manufacturer article number (MPN) | 4RD 933 332-037 |
|---|---|
| OE part numbers | 86508603 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HELLA 4rd933332-037 . Capacitive Load [A]: 10 A. Capacitive Load [A]: 20 A. Capacity at 12V: 20/30A. Colour: 7. Combi Switch Function: 23. Combi Switch Function: 24. Combi Switch Function: 25. Inductive Load [A]: 20 A
- 1x Relay Main Current
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 Relay Main Current 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 Relay Main Current fits. All fitment data is verified through TecDoc.
What specifications does this HELLA Relay Main Current have?
This HELLA Relay Main Current has the following specifications: Voltage [V]: 12 V; Plug Type ID: B1; Temperature range [°C]: 80 °C; Colour: 7; Protection Type (IP Code): IP6K7; Protection Type (IP Code): IP54. Check the full specifications table above for complete details.
What OE part numbers does this Relay Main Current replace?
This Relay Main Current replaces OE part numbers: 86508603. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Relay Main Current cost?
This HELLA Relay Main Current is available for £9.99. Relay Main Current prices vary depending on brand, specifications, and vehicle compatibility. HELLA parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Relay Main Current?
Regular inspection of your Relay Main Current 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 Relay Main Current?
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 Relay Main Current fitted by a professional mechanic.
Can I use this part as a replacement for OE 86508603?
Yes, this HELLA Relay Main Current is a direct replacement for OE part number 86508603. 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 HELLA 4RD 933 332-037 the same as the HELLA 4RA 003 437-181?
No, while both are Relay Main Current parts, they are different products. The HELLA 4RD 933 332-037 has Voltage [V]: 12 V, Plug Type ID: B1, Temperature range [°C]: 80 °C. The HELLA 4RA 003 437-181 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.
